Document

424B5 1 a424b5-prelimprosuppxxconv.htm 424B5 Document

The information in this preliminary prospectus supplement is not complete and may be changed. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell, nor a solicitation of an offer to buy, the notes in any jurisdiction where the offer or sale is not permitted.

Filed Pursuant to Rule 424(b)(5)

Registration No. 333-286675

PRELIMINARY PROSPECTUS SUPPLEMENT

(To Prospectus dated May 1, 2025)

Subject To Completion, Dated June 30, 2026

$300,000,000

% of Convertible Notes due 2031

We are offering $300,000,000 aggregate principal amount of our % convertible senior notes due 2031. In addition, we have granted the underwriters an option, which is exercisable within 30 days after the date of this prospectus supplement, to purchase up to an additional $45,000,000 aggregate principal amount of notes solely to cover over-allotments.

MATURITY; INTEREST

We will pay interest on the notes at an annual rate of %, payable semi-annually in arrears on January 1 and July 1 of each year, beginning on January 1, 2027. The notes will mature on July 1, 2031, unless earlier converted or redeemed or repurchased by us.

CONVERSION

Noteholders may convert their notes at their option only in the following circumstances: (1) during any calendar quarter commencing after the calendar quarter ending on September 30, 2026, if the last reported sale price per share of our common stock exceeds 130% of the conversion price for each of at least 20 trading days during the 30 consecutive trading days ending on, and including, the last trading day of the immediately preceding calendar quarter; (2) during the five consecutive business days immediately after any 10 consecutive trading day period (such 10 consecutive trading day period, the “measurement period”) in which the trading price per $1,000 principal amount of notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price per share of our common stock on such trading day and the conversion rate on such trading day; (3) upon the occurrence of certain corporate events or distributions on our common stock, as described in this prospectus supplement; (4) if we call such notes for redemption; and (5) at any time from, and including, April 1, 2031 until the close of business on the second scheduled trading day immediately before the maturity date. We will settle conversions by paying or delivering, as applicable, cash, shares of our common stock or a combination of cash and shares of our common stock, at our election, based on the applicable conversion rate(s). The initial conversion rate is shares per $1,000 principal amount of notes, which represents an initial conversion price of approximately $ per share, and is subject to adjustment as described in this prospectus supplement. If a “make-whole fundamental change” (as defined in this prospectus supplement) occurs, then we will in certain circumstances increase the conversion rate for a specified period of time.

REDEMPTION AND REPURCHASE

The notes will be redeemable, in whole or in part (subject to certain limitations described in this prospectus supplement), at our option at any time, and from time to time, on or after July 6, 2029 and on or before the 40th scheduled trading day immediately before the maturity date, at a cash redemption price equal to the principal amount of the notes to be redeemed, plus accrued and unpaid interest, if any, to, but excluding, the redemption date, but only if the last reported sale price per share of our common stock exceeds 175% of the conversion price on (1) each of at least 20 trading days, whether or not consecutive, during the 30 consecutive trading days ending on, and including, the trading day immediately before the date we send the related redemption notice; and (2) the trading day immediately before the date we send such notice. In addition, calling any note for redemption will constitute a make-whole fundamental change with respect to that note, in which case the conversion rate applicable to the conversion of that note will be increased in certain circumstances if it is converted after it is called for redemption.

If a “fundamental change” (as defined in this prospectus supplement) occurs, then, except as described in this prospectus supplement, noteholders may require us to repurchase their notes at a cash repurchase price equal to the principal amount of the notes to be repurchased, plus accrued and unpaid interest, if any. In addition, noteholders may require us to repurchase their notes on July 6, 2029, at a cash repurchase price equal to the principal amount of the notes to be repurchased, plus accrued and unpaid interest, if any.

RANKING

The notes will be our senior, unsecured obligations and will be equal in right of payment with our existing and future senior, unsecured indebtedness, senior in right of payment to our existing and future indebtedness that is expressly subordinated to the notes and effectively subordinated to our existing and future secured indebtedness, to the extent of the value of the collateral securing that indebtedness, including the New Senior Secured Credit Facilities (as defined below). The notes will be structurally subordinated with respect to the assets of our subsidiaries in relation to all existing and future indebtedness and other liabilities, including trade payables, and (to the extent we are not a holder thereof) preferred equity, if any, of our subsidiaries including indebtedness under the New Senior Secured Credit Facilities.

CONCURRENT COMMON STOCK OFFERING

Concurrently with this offering, we are offering, pursuant to a separate prospectus supplement $100.0 million of our common stock, plus up to an additional $15.0 million of our common stock that the underwriters of the concurrent common stock offering have the option to purchase from us (the “Concurrent Common Stock Offering”). The completion of this offering is contingent upon the completion of the Concurrent Common Stock Offering, and the completion of the Concurrent Common Stock Offering is contingent upon the completion of this offering.

LISTING; COMMON STOCK

No public market currently exists for the notes, and we do not intend to apply to list the notes on any securities exchange or for quotation on any inter-dealer quotation system. Our common stock is listed on the New York Stock Exchange under the symbol “SOC.” On June 29, 2026, the last reported sale price of our common stock was $6.97 per share.


	Per Note	Total
Public offering price(1)	%	$
Underwriting discounts and commissions(2)	%	$
Proceeds, before expenses to us	%	$
(1) Plus accrued interest, if any, from , 2026.
(2) We refer you to “Underwriting” beginning on page S-96 of this prospectus supplement for additional information regarding underwriting compensation.

An investment in the notes involves risks. See “Risk Factors” beginning on page S-21.

Neither the Securities and Exchange Commission nor any state or foreign securities commission or regulatory authority has approved or disapproved of the notes or the shares of our common stock, if any, issuable upon conversion of the notes or passed upon the adequacy or accuracy of this prospectus supplement or the accompanying prospectus. Any representation to the contrary is a criminal offense.

We expect to deliver the notes in book-entry form through the facilities of The Depository Trust Company on or about , 2026.

─────────


Book-Running Manager
J.P. Morgan

Prospectus Supplement dated , 2026

Table of Contents

TABLE OF CONTENTS

Prospectus Supplement


CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS			S-iv
PROSPECTUS SUPPLEMENT SUMMARY			S-1
RISK FACTORS			S-21
USE OF PROCEEDS			S-35
CAPITALIZATION			S-36
DIVIDEND POLICY			S-37
DESCRIPTION OF THE NOTES			S-38
DESCRIPTION OF OTHER INDEBTEDNESS			S-78
DESCRIPTION OF CAPITAL STOCK			S-81
MATERIAL U.S. FEDERAL INCOME TAX CONSIDERATIONS			S-84
THE CONCURRENT COMMON STOCK OFFERING			S-95
UNDERWRITING			S-96
WHERE YOU CAN FIND MORE INFORMATION			S-104
INCORPORATION BY REFERENCE			S-104
LEGAL MATTERS			S-106
EXPERTS			S-106

Prospectus


ABOUT THIS PROSPECTUS			1
SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS			2
WHERE YOU CAN FIND MORE INFORMATION; INCORPORATION BY REFERENCE			4
THE COMPANY			6
RISK FACTORS			9
USE OF PROCEEDS			10
DESCRIPTION OF CAPITAL STOCK			11
DESCRIPTION OF DEBT SECURITIES			14
DESCRIPTION OF WARRANTS			22
DESCRIPTION OF UNITS			24
GLOBAL SECURITIES			25
PLAN OF DISTRIBUTION			29
LEGAL MATTERS			31
EXPERTS			31

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As used in this prospectus supplement, (i) “we,” “our” and “us” refer to Sable Offshore Corp. and its consolidated subsidiaries, except where expressly noted otherwise or if otherwise implied by the context; and (ii) “or” is not exclusive.

In deciding whether to purchase the notes, you should rely only on the information contained or incorporated by reference in this prospectus supplement, the accompanying prospectus or any related pricing term sheet. Neither we nor any of the underwriters has authorized anyone to provide you with additional or different information. If anyone provides you with additional or different information, you should not rely on it.

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You should not assume that the information included or incorporated by reference in this prospectus supplement or the accompanying prospectus is accurate as of any date other than the respective dates of the documents in which the information is contained. Our business, financial condition, results of operations and prospects could have changed since those dates.

You should not consider any information included or incorporated by reference in this prospectus supplement or the accompanying prospectus to be legal, tax or investment advice. You should consult your own counsel, accountant and other advisors for legal, tax, business, financial and related advice regarding any purchase of the notes. Neither we nor any of the underwriters makes any representation regarding the legality of an investment in the notes by any person under applicable investment or similar laws.

This prospectus supplement and the accompanying prospectus do not constitute an offer to sell or the solicitation of an offer to purchase any notes in any jurisdiction or to any person where the offer or solicitation is not permitted.

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TRADEMARKS, SERVICE MARKS AND TRADE NAMES

This prospectus supplement contains our trademarks, service marks and trade names, which are protected under applicable intellectual property laws and are our property. This prospectus supplement may also include trademarks, service marks and trade names of other parties, which are the exclusive property of their respective owners. Solely for convenience, the trademarks, service marks and trade names referred to in this prospectus supplement may appear without the ®, ™ or ℠ symbols, but such references are not intended to indicate, in any way, that we will not assert, to the fullest extent permitted under applicable law, our rights or the right of the applicable licensor to these trademarks, service marks and trade names. We do not intend our use or display of other parties’ trademarks, service marks or trade names to imply a relationship with, or endorsement or sponsorship by us of the trademark, service mark or trade name owner.

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CAUTIONARY NOTE REGARDING FORWARD‑LOOKING STATEMENTS

This prospectus supplement contains or incorporates by reference forward-looking statements that reflect our current views with respect to, among other things, our operations, our financial performance, and our industry. Forward-looking statements include all statements that are not historical facts. These forward-looking statements are included throughout this prospectus supplement, including in the sections entitled “Prospectus Supplement Summary” and “Risk Factors” herein and in our Form 10-K for the year ended December 31, 2025, as such factors may be updated from time to time in our periodic filings with the SEC, as well as the other information contained or incorporated by reference in this prospectus supplement and relate to matters such as our industry, business strategy, goals and expectations concerning our market position, future operations, margins, profitability, capital expenditures, liquidity and capital resources and other financial and operating information, including statements relating to PHMSA’s regulatory oversight of the SYPS, the PHMSA Litigation, the DPA Order and related litigation, the potential implementation of the Buoy Strategy and the potential implementation of the OS&T Strategy. All statements other than those that are purely historical may be forward-looking statements. We may, in some cases, use words such as “project,” “believe,” “anticipate,” “assume,” “continue,” “plan,” “expect,” “estimate,” “intend,” “contemplate,” “should,” “would,” “could,” “potentially,” “predict,” “project,” “seek,” “foreseeable,” “will” or “may,” or similar words or phrases that convey uncertainty of future events or outcomes, to identify forward-looking statements included or incorporated by reference in this prospectus supplement.

•our ability to recommence full production of the SYU Assets, including bringing oil to market, and the cost and time required therefor, and production levels once recommenced;

•our financial performance;

•our ability to satisfy future cash obligations;

•restrictions in existing or future debt agreements or structured or other financing arrangements;

•commodity price volatility, low prices for oil and/or natural gas, global economic conditions, inflation, increased operating costs, lack of availability of drilling and production equipment, supplies, services and qualified personnel, processing volumes and pipeline throughput;

•uncertainties related to new technologies, geographical concentration of operations, environmental risks, weather risks, security risks, drilling and other operating risks, regulatory changes and regulatory risks, including risks relating to PHMSA’s regulatory oversight of the SYPS, the DPA Order and the potential implementation of the OS&T Strategy or the Buoy Strategy;

•the uncertainty inherent in estimating oil and natural gas resources and in projecting future rates of production;

•reductions in cash flow and lack of access to capital, including the capital required to bring online perforation additions and electric submersible pumps;

•the timing of development expenditures, managing growth and integration of acquisitions, and failure to realize expected value creation from acquisitions;

•the ability to recognize the anticipated benefits of the Business Combination (as defined below), which may be affected by, among other things, our ability to grow and manage growth profitably, maintain relationships with customers and compete within our industry;

•our success in retaining or recruiting, or changes required in, our officers, directors or other key personnel;

•our officers and directors allocating their time to other businesses and potentially having conflicts of interest with our business;

•developments relating to our competitors and our industry;

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•the possibility that we may be adversely impacted by other economic, business, and/or competitive factors;

•litigation, complaints and/or adverse publicity, including the PHMSA Litigation and litigation related to the DPA Order;

•privacy and data protection laws, privacy or data breaches, or the loss of data;

•our ability to maintain the listing of our Common Stock on the NYSE;

•our ability to comply with laws and regulations applicable to our business; and

•changes in applicable laws or regulations.

We have based these forward-looking statements largely on our current expectations and projections about future events and financial trends that we believe may affect our business, financial condition and results of operations. Forward-looking statements involve known and unknown risks, uncertainties and other important factors that may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements, including, but not limited to, the important factors discussed in Part I, Item 1A. “Risk Factors” in our Form 10-K for the year ended December 31, 2025 and any subsequent Quarterly Reports on Form 10-Q. The forward-looking statements in this prospectus supplement are based upon information available to us as of the date of this prospectus supplement and while we believe such information forms a reasonable basis for such statements, such information may be limited or incomplete, and our statements should not be read to indicate that we have conducted an exhaustive inquiry into, or review of, all potentially available relevant information. These statements are inherently uncertain and investors are cautioned not to unduly rely upon these statements.

The forward-looking statements included or incorporated by reference in this prospectus supplement speak only as of the date of this prospectus supplement or as of the date they are made, as applicable. Factors or events that could cause our actual results to differ may emerge from time to time, and it is not possible for us to predict all of them. We may not actually achieve the plans, intentions or expectations disclosed in our forward-looking statements and you should not place undue reliance on our forward-looking statements. Our forward-looking statements do not reflect the potential impact of any future acquisitions, mergers, dispositions, joint ventures, investments or other strategic transactions we may make. Except as otherwise required by law, we disclaim any intent or obligation to update any “forward-looking statement” made or incorporated by reference in this prospectus supplement to reflect changed assumptions, the occurrence of unanticipated events or changes to future operating results over time.

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PROSPECTUS SUPPLEMENT SUMMARY

This summary highlights selected information included in or incorporated by reference into this prospectus supplement and does not contain all of the information that may be important to you. You should read the entire prospectus supplement and accompanying prospectus and the other documents to which we refer before you decide to invest. This summary is not complete and does not contain all of the information that you should consider before deciding whether to invest in the notes. For a more complete understanding of the Company and this offering, we encourage you to read and consider carefully the more detailed information in this prospectus supplement and the accompanying prospectus, including the information incorporated by reference into this prospectus supplement and the accompanying prospectus, including the information contained in and incorporated by reference under the section titled “Risk Factors” on page S-21 of this prospectus supplement, and under similar headings in the other documents that are filed after the date hereof and incorporated by reference into this prospectus supplement and the accompanying prospectus.

Overview

Sable Offshore Corp. was a blank check company originally incorporated on October 16, 2020 as a Delaware corporation for the purpose of effecting a merger, share exchange, asset acquisition, share purchase, reorganization or other similar business combination with one or more businesses or entities. On March 1, 2021, Flame consummated an initial public offering, after which its securities began trading on NYSE. On November 2, 2022, Flame entered into that certain Agreement and Plan of Merger (as amended, the “Merger Agreement”), dated November 2, 2022, by and among Flame, Sable Offshore Holdings LLC, a Delaware limited liability company (“Holdco”), and Sable Offshore Corp., a Texas corporation and a wholly owned subsidiary of Holdco (“Legacy Sable”).

Legacy Sable entered into a Purchase and Sale Agreement (as amended, the “Sable-EM Purchase Agreement”) on November 1, 2022 with Exxon Mobil Corporation (“Exxon”) and Mobil Pacific Pipeline Company (“MPPC,” and together with Exxon, “EM”) pursuant to which Legacy Sable agreed to acquire from EM certain assets constituting the Santa Ynez field in Federal waters offshore California and associated onshore processing and pipeline assets (such “Assets,” as defined in the Sable-EM Purchase Agreement, the “SYU Assets”).

On February 14, 2024 (the “Closing Date”), we consummated the mergers and related transactions contemplated by the Merger Agreement (the “Business Combination”), following which Flame was renamed “Sable Offshore Corp.” Pursuant to the terms and subject to the conditions set forth in the Sable-EM Purchase Agreement, the transactions contemplated by the Sable-EM Purchase Agreement were also consummated on February 14, 2024, immediately after the consummation of the Business Combination (the “Closing”), as a result of which we purchased the SYU Assets, effective as of January 1, 2022. On February 15, 2024, our shares of Common Stock began trading on NYSE under the symbol “SOC”.

Since the Closing Date, we have invested significant capital to safely restore production operations to SYU.

Unless otherwise noted or the context otherwise requires, references to (i) the “Company,” “Sable,” “we,” “us,” or “our” are to Sable Offshore Corp., a Delaware corporation, and its consolidated subsidiaries, following the Business Combination, (ii) “Flame” refers to Flame Acquisition Corp. prior to the Business Combination, (iii) the “Santa Ynez Unit” or “SYU” refers to the 16 federal leases, three offshore production platforms (Hondo, Harmony, and Heritage), and associated ancillary facilities located in federal waters offshore California, and (iv) the “Santa Ynez Pipeline System” (or “SYPS”) refers to the interstate pipeline connecting the Santa Ynez Unit to the Pentland Station terminal, inclusive of “Pipeline Segment 324” and “Pipeline Segment 325”, or collectively referred to as “Pipeline Segments 324 and 325” (formerly known as “901/903 Assets” and as defined in the Sable-EM Purchase Agreement), the Las Flores Canyon (“LFC”) onshore processing, storage, and related pipeline assets, and the offshore pipeline connecting the Santa Ynez Unit to LFC. The SYU Assets include the Santa Ynez Unit and the Santa Ynez Pipeline System.

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Assets

The offshore position is comprised of 16 federal leases across approximately 76,000 acres and includes 100% working interest with an average 83.6% net revenue interest. The Hondo platform and the Harmony platform develop the Hondo Field, and the Heritage platform develops the Pescado and Sacate Fields. The platforms are located 5 to 9 miles offshore of Santa Barbara County in shallow water depths of 900 to 1,200 feet and service 112 wells, comprised of 90 producers, 12 injectors and 10 idle with an additional 102 identified, undrilled opportunities. A 2015 analysis identified step-out potential for untested fault compartments or sub-accumulations and indicated a potential technical opportunity for up to an additional 102 identified, undrilled opportunities based on spacing assumptions ranging from 20 to 80 acres. For each platform, more opportunities exist than there are available donor wellbores based on current spacing assumptions (i.e., each platform is slot-constrained).

From the offshore platforms in the Outer Continental Shelf (“OCS”), crude oil is transported through the Santa Ynez Pipeline System to onshore processing and storage facilities. The wholly owned onshore processing facility is a fully integrated oil and gas processing facility with additional capacity for development. The onshore position is approximately 1,480 surface acres, which include the processing facility and parts of the surrounding canyons. The onshore facilities occupy approximately 35 acres and are comprised of:

•an oil treating plant with capacity of approximately 180 MBop/d where it conducts crude dehydration, crude stabilization, and gas separation and compression;

•a biologic/physical water treating plant with capacity of more than 67 MBwp/d where it conducts free oil removal, degassing, and biological treatment;

•a Pacific Offshore Pipeline Company (“POPCO”) gas plant with approximately 80 MMcf/d sales capacity where it conducts gas sweetening, sulfur recovery, natural gas liquids (“NGL”) fractionation, and gas compression (the “POPCO Facility”);

•another gas processing plant where it conducts gas sweetening, sulfur recovery, and NGL fractionation, and sends fuel gas to the co-generation power plant;

•an almost entirely electric co-generation power plant with a capacity of 50 MW, including a 40 MW gas turbine, a 10 MW steam turbine, and steam generation;

•crude storage capacity of 540 MBbls;

•a produced water pipeline, which is partially offshore;

•liquified petroleum gas storage and loading; and

•a transportation terminal.

Pipeline Segments 324 and 325 and the other 324/325 Assets (formerly known as “901/903 Assets” and as defined in the Sable-EM Purchase Agreement) acquired in the Business Combination were owned and operated by Plains Pipeline L.P. (“Plains”) and were acquired by EM on October 13, 2022. Pipeline Segments 324 and 325 were used to deliver oil to local refinery markets from the onshore processing and storage facilities. Following a crude oil release in May 2015, Plains indicated it suspended petroleum transportation activities through Pipeline Segments 324 and 325, initiated its emergency response plan, and Pipeline Segments 324 and 325 were subsequently emptied of hydrocarbons but filled with an inert gas and maintained in a safe state.

We operate the Santa Ynez Pipeline System’s onshore processing and storage facilities and pipeline facilities, including the offshore pipeline facilities and Pipeline Segments 324 and 325, as a single pipeline system transporting crude oil from the SYU Assets in the OCS to the Pentland Station terminal in Kern County, California. Segment 324 (formerly known as Line 901) is a 24-inch, approximately 10.8 mile long crude oil pipeline that extends from the Las Flores Station on the California Coast to the Gaviota Pump Station in Santa Barbara County, California. Segment 325 (formerly known as Line 903) is a 30-inch, approximately 113 mile long crude oil pipeline that extends from the Gaviota Pump Station in Santa Barbara County, California to the 30-inch pig receiver located in

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Pentland Station in Kern County, California with an intermediate station at Sisquoc mile post 38.5 in San Luis Obispo, California.

Recent Developments

Concurrent Common Stock Offering

Concurrently with this offering, we are offering, pursuant to a separate prospectus supplement, $100.0 million of our common stock, plus up to an additional $15.0 million of our common stock that the underwriters of the Concurrent Common Stock Offering have the option to purchase from us. The completion of this offering is contingent upon the completion of the Concurrent Common Stock Offering, and the completion of the Concurrent Common Stock Offering is contingent upon the completion of this offering. This prospectus supplement does not constitute an offer to sell, or the solicitation of an offer to buy, any securities being offered in the Concurrent Common Stock Offering. The prospectus supplement for the Concurrent Common Stock Offering does not constitute an offer to sell, or the solicitation of an offer to buy, any of the notes, or the shares of common stock, if any, issuable upon conversion of the notes, that we are offering pursuant to this prospectus supplement. See “The Concurrent Common Stock Offering.”

New Senior Secured Credit Facilities

Substantially concurrently with the issuance of the notes, subject to customary closing conditions, we expect to enter into (i) a senior secured reserve-based revolving credit facility (the “Senior Revolver”) in an initial aggregate maximum credit amount of up to $500,000,000 (but initially subject to a “zero borrowing base”), with JPMorgan Chase Bank, N.A., as administrative agent and collateral agent, and the lenders and issuing banks from time to time party thereto, for the purpose of facilitating secured hedging arrangements and secured cash management arrangements and (ii) a senior secured term loan B credit facility (the “Term Loan B”) providing term loans in an aggregate principal amount of $675,000,000, with JPMorgan Chase Bank, N.A., as administrative agent and collateral agent, and the lenders from time to time party thereto (the Term Loan B, together with the Senior Revolver, the “New Senior Secured Credit Facilities”). The Term Loan B will bear interest at a rate equal to 15.00% per annum and will mature on December 15, 2028. The Senior Revolver will provide for revolving credit availability subject to a borrowing base to be determined from time to time, and will mature on December 15, 2028. The Senior Revolver and the Term Loan B will be secured on a first lien basis by substantially all of our assets and will be subject to a first lien intercreditor agreement. The entry into the New Senior Secured Credit Facilities is a condition precedent to the completion of this offering and the Concurrent Common Stock Offering.

The proceeds of the notes, the Concurrent Common Stock Offering and the Term Loan B shall be used, in part, to fully repay and satisfy all obligations under our Senior Secured Term Loan with Exxon (as amended, the “Existing Senior Secured Term Loan”) maturing on July 24, 2026 (such refinancing, the “Term Loan Refinancing”).

We refer to the issuance and sale of the notes in this offering and the use of proceeds therefrom as described under “Use of Proceeds”, the Concurrent Common Stock Offering, the entry into the New Senior Secured Credit Facilities and the Term Loan Refinancing collectively as the “Transactions”. This offering, the Concurrent Common Stock Offering, the New Senior Secured Credit Facilities and the Term Loan Refinancing are cross conditioned, and accordingly each transaction will be consummated only if all such transactions are consummated.

Existing Senior Secured Term Loan Amendment

On June 22, 2026, we and Exxon entered into an amendment (the “Existing Senior Secured Term Loan Amendment”) to the Existing Senior Secured Term Loan to, among other things, extend the maturity date, and agreed to a limited waiver of the Company’s P&A Financial Security obligations in Section 11.18 (c) (the “Limited Waiver”) of the Sable-EM Purchase Agreement.

The Existing Senior Secured Term Loan Amendment extends the maturity date of the Existing Senior Secured Term Loan to the earlier to occur of (a) July 24, 2026, and (b) the acceleration of the Existing Senior Secured Term Loan following any Event of Default (as defined therein).

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The Limited Waiver states that the Company and EM have agreed to temporarily waive the requirement for the Company to provide P&A Financial Security (as defined in the Sable-EM Purchase Agreement) within three business days of the maturity date until the earlier of (A) December 22, 2028, (B) the date on which the New Senior Secured Credit Facilities are redeemed, repaid or otherwise refinanced, or (C) the date on which any Event of Default has occurred and is continuing under the Existing Senior Secured Term Loan, or any Financing Document (as defined in the Existing Senior Secured Term Loan) or any breach or default under any other contractual obligation to Sellers or their affiliates.

Pursuant to the Existing Senior Secured Term Loan Amendment, we paid Exxon a $30.0 million amendment fee on June 22, 2026. Additionally, Exxon agreed to suspend and waive the minimum liquidity covenant of $25.0 million under the Existing Senior Secured Term Loan until the amended maturity date.

Resumption of Production

As of June 18, 2026, 52 of the 77 completed wells at Platforms Harmony and Heritage are online, producing an average of approximately 43,000 gross barrels of oil per day. The number of online wells is currently limited by the number of compressors online due to lower-than-expected gas production from the wells given the higher oil ratios since restart. The Company expects to bring additional wells at Platform Harmony and Heritage online as gas production increases. The Company also expects Platform Hondo to commence production in the third quarter of 2026.

The Company has also brought online two perforation additions, plans to bring online up to 41 more perforation additions by the end of 2029 (with an expected 15 more perforation addition opportunities remaining thereafter), and also intends to install up to eight electric submersible pumps beginning in 2028. The Company estimates that the total capital required for the perforation additions and submersible pumps, if all are executed, is approximately $40.8 million.

Offshore Buoy Alternative

Sable is evaluating the installation of an oil sales buoy (the “Buoy”) to provide access to additional markets for federal crude oil produced from the SYU in the Pacific Outer Continental Shelf Area the (“Buoy Strategy”).

Sable has not started any preparations or installations of the Buoy. Sable estimates that the total capital required to install the Buoy is approximately $125.0 million. See “Risk Factors—Risks Associated with Our Operations—In order to commence operations pursuant to the OS&T Strategy or the Buoy Strategy, we will require clearances and permitting, including from BOEM.”

Offshore Storage and Treating Vessel Alternative

On September 29, 2025, Sable announced that it is evaluating an offshore storage and treating vessel (“OS&T”) strategy to provide access to domestic and global markets via shuttle tankers for federal crude oil produced from the SYU in the Pacific Outer Continental Shelf Area (the “OS&T Strategy”). Continued delays related to the Santa Ynez Pipeline System prompted Sable to evaluate the OS&T Strategy and on October 9, 2025, Sable submitted a Development and Production Plan update for the SYU to the Bureau of Ocean Energy Management (“BOEM”). Prior to implementation of the OS&T Strategy, regulatory authorizations would be required, including clearance from BOEM. Following the resumption of oil transportation through Pipeline Segments 324 and 325 of the SYPS, the OS&T Strategy is no longer the Company’s primary development pathway. Under the DPA Order (as defined below), the Company has been directed to immediately prioritize and allocate pipeline transportation services for oil transportation from the SYU through the SYPS. Nonetheless, the Company continues to evaluate the OS&T Strategy as a longer-term option to diversify sales channels, expand access to domestic and international purchasers, and provide additional flexibility in navigating potential regulatory developments.

Preparations for the OS&T Strategy would include the acquisition of a suitable OS&T vessel, certain refitting and upgrades to the vessel and the SYU equipment, transportation of the vessel to SYU, and related installation. Sable estimates that the total capital required to execute the OS&T Strategy is approximately $475.0 million. The Company has already incurred a small portion of such capital expenditures, with the vast majority of such capital

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expenditures remaining, provided the Company implements the OS&T Strategy and receives regulatory clearances. See “Risk Factors—Risks Associated with Our Operations—In order to commence operations pursuant to the OS&T Strategy or the Buoy Strategy, we will require clearances and permitting, including from BOEM.”

At-the Market Offering Program

During the first quarter of 2026, the Company entered into an at-the-market equity offering program (the “ATM Program”) to support its capital requirements and enhance liquidity, pursuant to which the Company may offer and sell, from time to time at its sole discretion, shares of its common stock having an aggregate gross sales price of up to $250.0 million.

Under the ATM Program, subsequent to March 31, 2026, the Company has issued 1,640,844 shares of its common stock for aggregate net proceeds of approximately $22.2 million.

Resuming Transportation through Pipeline Segments 324 and 325

On March 14, 2026, we resumed transportation of oil through Pipeline Segments 324 and 325 of the Santa Ynez Pipeline System, pursuant to the DPA Order (as defined below).

Defense Production Act Order

On March 13, 2026, the President of the United States, Donald J. Trump, signed an Executive Order to, among other things, delegate certain authorities under the Defense Production Act (“DPA”) to the United States Secretary of Energy.

Subsequently on March 13, 2026, the United States Secretary of Energy, Chris Wright, issued an order (the “DPA Order”) pursuant to that delegated authority in order to address the energy scarcity and supply disruption risks that have left the region and U.S. military forces dependent on foreign oil. The DPA Order states that “[a]n affordable and reliable domestic supply of energy is a fundamental requirement for the national and economic security of any nation.” It observes that the nation’s energy “problems are most pronounced in our Nation’s West Coast, ‘where dangerous State and local policies jeopardize our Nation’s core national defense and security needs, and devastate the prosperity of not only local residents but the entire United States population.’” The SYPS is a “critical energy resource on the West Coast” but “cannot be used to address the shortages identified in EO 14156 and the resulting vulnerabilities, including adversarial dependence” because “California agencies have deployed an array of state measures [ ] to block pipeline operations.” Accordingly, the DPA Order directs Sable “to immediately prioritize and allocate pipeline transportation services for hydrocarbons from the SYU through the SYPS” and “immediately commence performance under contracts or orders for services…for hydrocarbon transportation capacity in the SYPS[.]” The DPA Order requires Sable to “comply with this order immediately and maintain such compliance until such time as the conditions necessitating the issuance of this order abate or until Sable is directed otherwise.”

On March 30, 2026, the State of California filed a Complaint for Declaratory and Injunctive Relief alleging that the DPA Order violates provisions of the Administrative Procedure Act and the U.S. Constitution. The matter is captioned State of California v. Chris Wright, et al., Case No. 2:26-cv-03396, in U.S. District Court, Central District of California. The Court held a hearing on the State’s Motion for Preliminary Injunction on June 8, 2026, and ordered supplemental briefing, which was completed by the parties on June 18, 2026.

California Coastal Commission Matter

On September 27, 2024, the California Coastal Commission (the “Coastal Commission”) issued Notice of Violation No. V-9-24-0152 to Sable, which asserted that Sable’s safety valve installation work and certain maintenance and repair activities undertaken by Sable on Pipeline Segments 324 and 325 of the SYPS located in the California coastal zone (the “Coastal Zone”) constituted unpermitted development activities under the California Coastal Act (Cal. Pub. Res. Code Section 30000, et seq.) (the “Coastal Act”) and the County’s Local Coastal Program (“LCP”). Sable undertook the subject repair and maintenance work, including the safety valve installation work, based on its understanding that no new coastal development permit or other Coastal Act authorization was required, consistent with the County’s practice of authorizing repair work on Pipeline Segments 324 and 325 since they were first

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permitted and built over 30 years ago. Following good faith negotiations with Coastal Commission staff, on November 12, 2024, the Coastal Commission issued Executive Director Cease and Desist Order No. ED-24-CD-02 (the “Order”) requiring Sable to, among other requirements, prepare and submit an interim restoration plan and submit an application either to the Coastal Commission or the County to obtain a coastal development permit for the valve installation and other maintenance and repair work. In compliance with the Order, Sable prepared, submitted, and implemented the Interim Restoration Plan as approved by Coastal Commission staff. Sable separately submitted certain applications to the County related to some of the maintenance and repair work that was subject to Notice of Violation No. V-9-24-0152. The Order expired on February 10, 2025.

On February 11, 2025, the Coastal Commission issued Notice of Violation No. V-9-25-0013 to Sable, which asserted that certain maintenance and repair activities on the offshore pipeline segments of the SYPS in the Coastal Zone constituted unpermitted development activities under the Coastal Act. Sable undertook the subject maintenance and repair activities based on its understanding that no new coastal development permit or other Coastal Act authorization was required for such work, consistent with similar work that previously had been performed along the offshore pipeline segments of the SYPS by prior operators.

On February 12, 2025, the County delivered a letter to Sable confirming that certain Pipeline Segments 324 and 325 anomaly maintenance and repair work referenced in the Coastal Commission’s Notice of Violation V-9-24-0152 was “authorized by the existing permits (Final Development Plan, Major Conditional Use Permit, and associated Coastal Development Permits) and was analyzed in the prior Environmental Impact Report/Environmental Impact Statement (EIR/EIS).” The letter states in part that “[t]he County previously exercised its authority under its Local Coastal Program and delegated Coastal Act authority in approving the permits and the requested anomaly repair work is within the scope of those approved permits.” Sable subsequently recommenced the repair and maintenance activities which were subject to Notice of Violation V-9-24-0152.

In addition, also on February 12, 2025, the County delivered a letter to the Coastal Commission. In this letter, the County responded to a request by the Coastal Commission to consent to a consolidated coastal development permit process for certain activities undertaken and planned by Sable on the SYPS. The County’s letter also stated that certain maintenance and repair work on the Pipeline Segments 324 and 325 that was referenced in the Coastal Commission’s Notice of Violation V-9-24-0152 is “authorized by the existing permits (Final Development Plan, Major Conditional Use Permit, and associated Coastal Development Permits) and was analyzed in the prior Environmental Impact Report/Environmental Impact Statement. Thus, no further application to or action by the County is required.”

On February 14, 2025, Sable submitted a written response to the Coastal Commission’s Notice of Violation V-9-24-0152 detailing that, consistent with the County’s letters, certain of the alleged unpermitted development subject to the Notice of Violation was previously approved and that no further coastal development permit is required.

On February 18, 2025, Sable filed a complaint against the Coastal Commission in the Superior Court of the State of California for the County of Santa Barbara (Case No. 25CV00974). In the complaint, Sable challenges the Coastal Commission’s prior Notices of Violations and Executive Director Cease and Desist Order as procedurally improper and asserts that the Coastal Commission lacks authority to prohibit work authorized by existing permits. Sable seeks a declaration that the Coastal Commission’s actions are unlawful, an injunction prohibiting further enforcement actions by the Coastal Commission, damages for the alleged taking of property rights, and attorneys’ fees and costs. The Coastal Commission proceeded to issue an Executive Director Cease and Desist Order to Sable on February 18, 2025, related to certain of Sable’s pipeline repair and maintenance activities and safety valve installation work.

On April 10, 2025, the Coastal Commission approved Cease and Desist Order CCC-25-CD-01, Restoration Order CCC-25-RO-01, and Administrative Penalty Order CCC-25-AP3-01, whereby the Coastal Commission ordered the Company to cease and desist from all ongoing development in the Coastal Zone under the Coastal Act “as part of the effort to restart the SYU oil production operations and bring the pipelines back into use,” apply for new Coastal Act authorization for all previously completed, ongoing, and future development in the Coastal Zone to the extent “part of the effort to restart the SYU oil production operations and bring the pipelines back into use,” and imposed an administrative penalty of approximately $18.0 million on the Company. The Company does not believe this penalty

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is lawful and has not recognized any accrued expense as of March 31, 2026. Sable is prepared to vigorously pursue all available legal remedies related to the orders, including the administrative penalty, imposed by the Coastal Commission.

On April 16, 2025, the Coastal Commission filed a request in the Santa Barbara County Superior Court for a temporary restraining order against the Company to restrain the Company from violating the Cease and Desist Order CCC-25-CD-01 and to halt repair and maintenance activities on the Santa Ynez Pipeline System within the Coastal Zone. The request was filed within the Company’s ongoing litigation against the Coastal Commission (Case No. 25CV00974). On April 17, 2025, the court denied the Coastal Commission’s request for a temporary restraining order and set the matter for further hearing on May 14, 2025, which date was later continued to May 28, 2025.

On April 22, 2025, counsel for the Coastal Commission filed a Petition for Stay, Writ of Supersedeas, or Other Appropriate Order, and Request for Temporary Stay with the Second Division California Court of Appeal (“Court of Appeal”), seeking a temporary stay of the Santa Barbara County Superior Court’s denial of the Coastal Commission’s request for a TRO and an order requiring Sable to comply with the cease and desist order. Sable filed an Opposition to the Coastal Commission’s Petition with the Court of Appeal on April 28, 2025. On May 15, 2025, the Court of Appeal denied the Coastal Commission’s request for a temporary stay.

On May 28, 2025, the Santa Barbara County Superior Court granted the Coastal Commission’s application for issuance of a preliminary injunction, enjoining Sable from conducting any further “development” in violation of Cease and Desist Order CCC-25-CD-01. On July 9, 2025, the court denied Sable’s motion to stay the Cease and Desist Order CCC-25-CD-01. On July 16, 2025, Sable filed a notice of appeal challenging the court’s issuance of preliminary injunction. On July 29, 2025, counsel for Sable filed a Petition for Writ of Mandate or Other Appropriate Relief with the Second Division California Court of Appeal, seeking a writ of mandate reversing the Santa Barbara County Superior Court’s denial of Sable’s motion to the stay Cease and Desist Order CCC-25-CD-01. On August 4, 2025, the Court of Appeal denied Sable’s Petition for Writ of Mandate. On October 6, 2025, Sable filed a motion to file an amended complaint which quantifies its monetary damages in excess of $347.0 million. On October 15, 2025, the Santa Barbara County Superior Court denied the Company’s request for the issuance of a writ of mandate on its first cause of action and set procedural motions related to Sable’s four additional causes of action for December 3, 2025. On November 5, 2025, Sable filed its opening brief in support of its appeal challenging the Superior Court’s issuance of the preliminary injunction with the Court of Appeal. Sable has also filed a Petition for Writ of Mandate or Other Appropriate Relief, seeking a writ of mandate reversing the Superior Court’s October 15, 2025 denial of Sable’s first cause of action. The Court of Appeal held a hearing on Sable’s appeal on May 14, 2026, and took the matter under submission. On June 17, 2026, the Court of Appeal affirmed the Superior Court’s issuance of the preliminary injunction.

On December 3, 2025, the Santa Barbara County Superior Court denied the Coastal Commission’s motion for judgment on the pleadings as to its first amended cross complaint, granted Sable’s motion to file the second amended complaint, and requested further briefing on Sable’s four remaining causes of action. On February 18, 2026, the Santa Barbara County Superior Court denied Sable’s Motion for Reconsideration of the Preliminary Injunction for lack of jurisdiction pending Sable’s appeal of the preliminary injunction to the Second Division California Court of Appeal. The Santa Barbara County Superior Court also denied Sable’s Motion for Reconsideration of Sable’s Writ of Mandate. On March 18, 2026, the Coastal Commission filed a Motion for Judgment on the Pleadings (“MJOP”). On April 22, 2026, Sable filed its opposition to the Coastal Commission’s MJOP. A hearing on the Coastal Commission’s MJOP was held on May 20, 2026. On April 22, 2026, Sable also filed a motion for leave to file a third amended complaint to include allegations relating to PHMSA’s jurisdiction and the DPA Order and for leave to file a first amended answer, for which arguments also were heard on May 20, 2026. On May 20, 2026, the Santa Barbara County Superior Court granted the Coastal Commission’s MJOP as to the Company’s second, third, fourth, and fifth causes of action, denied the Company’s motion for leave to file a third amended complaint, and granted the Company’s motion for leave to file a first amended answer. Trial is scheduled for February 17, 2027.

On December 23, 2025, the Coastal Commission’s Executive Director sent PHMSA a letter requesting to review the Company’s Restart Plan application materials pursuant to the Coastal Zone Management Act (“CZMA”), which PHMSA had approved on December 22, 2025. The letter also requested that PHMSA provide the Commission with

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the Company’s Emergency Special Permit application materials to allow for a similar review by the Commission under the CZMA. The letter asserts that PHMSA’s approval of the Company’s Restart Plan and the Emergency Special Permit should be considered stayed pending the Commission’s review. The letter also notified PHMSA that the Commission is reviewing PHMSA’s concurrence with the Company’s determination that Pipeline Segments 324 and 325 constitute part of an interstate pipeline facility under the PSA. On February 20, 2026, PHMSA responded to the Coastal Commission’s December 23 letter, advising the Commission that PHMSA’s records are available by submitting a request for information pursuant to the Freedom of Information Act, advising that some of the records may already be public owing to litigation that has been filed challenging the Restart Plan approval, and otherwise abstaining from comment owing to ongoing litigation.

On June 9, 2026, the Coastal Commission’s Executive Director issued a Notice of Intent to Commence Cease and Desist Order and Administrative Penalty Proceedings to the Company alleging that the Company is undertaking “unpermitted development” under the Coastal Act as amended by California Senate Bill 237. See “California Senate Bill 237” for additional information.

Zaca Preserve Matter

On October 3, 2024, plaintiff Zaca Preserve LLC filed a California state court complaint against Sable, its subsidiary PPC, Plains All American Pipeline LP, and Plains Pipeline LP. The case is captioned 24CV05483 and is pending in Santa Barbara County Superior Court, Anacapa Division. The plaintiff filed a First Amended Complaint on December 12, 2024, and served the complaint on Sable and PPC on December 18, 2024.

The plaintiff was a class member of the Grey Fox litigation that was settled effective September 17, 2024, and chose to opt out of the final settlement class. The plaintiff raises claims similar to the Grey Fox plaintiffs, namely that the pipeline easement on its property is no longer valid in light of the 2015 Refugio oil spill and the conduct of defendants. The plaintiff brings contract and tort claims and seeks declaratory and injunctive relief determining his easement terminated and prohibiting defendants from accessing or using his easement to resume pipeline operations. The plaintiff seeks compensatory, exemplary, and statutory damages, costs, attorneys’ fees, and interest, as well as declaratory and injunctive relief. By stipulation, Sable and PPC’s deadline to respond to the First Amended Complaint was March 4, 2025. Sable and PPC timely filed and served their Demurrer to the Plaintiff’s First Amended Complaint and Sable filed and served a Motion to Strike the First Amended Complaint. The Demurrer and Motion to Strike were heard November 12, 2025. The court sustained the Demurrer, without leave to amend as to Plaintiff’s causes of action for injunctive relief, negligent misrepresentation, negligence, UCL violation, permanent nuisance and threatened nuisance, and denied the Motion to Strike. Plaintiffs filed a Second Amended Complaint on December 12, 2025. Sable and PPC answered the Second Amended Complaint on February 11, 2026, and intend to defend the case vigorously. Plaintiff has filed a motion to supplement the complaint but not to change the underlying claims. A hearing on that motion and a case management conference are scheduled for August 5, 2026.

BSEE Matter

On June 27, 2024, the Center for Biological Diversity and the Wishtoyo Foundation filed a complaint against Debra Haaland, Secretary of the U.S. Department of the Interior; the Bureau of Safety and Environmental Enforcement (“BSEE”); and Bruce Hesson, BSEE Pacific Regional Director in the U.S. District Court for the Central District of California (Case No. 2:24-cv-05459). Sable intervened and vigorously contests the plaintiffs’ allegations. In the plaintiffs’ January 2025 first supplemental and amended complaint, the plaintiffs alleged that BSEE: violated the National Environmental Policy Act (“NEPA”), the Outer Continental Shelf Lands Act (“OCSLA”), and the Administrative Procedure Act (“APA”) in November 2023 by approving an extension to resume operations associated with the 16 oil and gas leases Sable holds in the SYU in federal waters offshore of California in the Santa Barbara Channel; and violated NEPA and the APA in September 2024 by approving applications for permits to modify for well reworking operations and by failing to conduct supplemental environmental analysis for oil and gas development and production in the SYU. The complaint asked for the court: to issue an order finding that BSEE violated NEPA, OCSLA and the APA; to vacate and remand the extension and the applications for permits to modify; to order BSEE to complete NEPA analysis by a date certain; to prohibit BSEE from authorizing further extensions, applications for permits to modify, or any other authorizations for resuming production until it complies with NEPA, OCSLA and the APA; and for an award of costs and attorneys’ fees. Sable believes that the

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government’s prior extensions to resume operations were both appropriate and authorized and independently that subsequent actions, including a May 28, 2025 Environmental Assessment (the “2025 Environmental Assessment”) relied on by BSEE and a May 29, 2025 decision by BSEE approving the extension, render plaintiffs’ corresponding claims moot. On September 24, 2025, the court denied cross-motions for summary judgment by all parties.

On November 7, 2025, the court approved a new scheduling order. On November 10, 2025, plaintiffs filed their second supplemental and amended complaint against Doug Burgum, Secretary of the U.S. Department of the Interior; BSEE; and Bobby Kurtz, BSEE Acting Pacific Regional Director. Plaintiffs added new claims to their existing complaint alleging that BSEE: violated NEPA and the APA in July 2025 by approving additional applications for permits to modify; and violated NEPA and the APA when issuing the May 29, 2025 decision approving the extension based upon the 2025 Environmental Assessment. In addition to the relief plaintiffs already sought, the second supplemental and amended complaint also asks the court: to issue an order finding that BSEE violated NEPA and the APA when issuing the July 2025 applications for permits to modify; to vacate and remand the July 2025 applications for permits to modify, the 2025 Environmental Assessment and Finding of No Significant Impact, and BSEE May 29, 2025 decision approving the extension. On November 24, 2025, Sable filed its answer to the second supplemental and amended complaint. The federal government lodged an updated administrative record on December 19, 2025. On January 16, 2026, plaintiffs filed a motion to compel completion and supplementation of the administrative record, which the court granted on March 12, 2026, and BSEE subsequently produced additional documents. On May 28, 2026, the court issued a scheduling order setting a briefing schedule for the parties’ cross-motions for summary judgment with a hearing scheduled for February 12, 2027.

BOEM Matter

On April 2, 2025, the Center for Biological Diversity and the Wishtoyo Foundation filed a complaint against Doug Burgum, Secretary of the U.S. Department of the Interior; BOEM; and Douglas Boren, BOEM Pacific Regional Director, in the U.S. District Court for the Central District of California (Case No. 2:25-cv-02840). On May 12, 2025, plaintiffs filed an amended complaint in which plaintiffs challenge BOEM’s April 2025 decision determining that Sable is not required to revise the development and production plan for Platform Harmony in the SYU. The amended complaint asked for the court: to issue an order finding that BOEM’s decision was not in accordance with OCSLA and violated the APA; order BOEM to require revision of the development and production plan for Platform Harmony; prohibit BOEM from authorizing new oil and gas drilling activity at the SYU unless and until revision of the development and production plan is complete; and for an award of costs and attorneys’ fees. Sable intervened and vigorously contests the plaintiffs’ allegations. On September 10, 2025, the court denied Sable’s motion to dismiss based on plaintiffs’ failure to provide notice under OCSLA’s citizen suit provision. The parties filed cross-motions for summary judgment, and the federal government and Sable filed motions to strike extra-record materials cited in plaintiffs’ motion for summary judgment. On May 14, 2026, the court issued an order sua sponte dismissing plaintiffs’ amended complaint for lack of subject matter jurisdiction on standing grounds, and denied as moot all pending motions for summary judgment and motions to strike extra-record evidence. On June 4, 2026, plaintiffs filed a second amended complaint against the same defendants asking the court to declare that BOEM’s April 2025 decision that the development and production plan for Platform Harmony need not be revised is arbitrary, capricious, and not in accordance with OCSLA or its implementing regulations; order BOEM to review changes in available information and other onshore or offshore conditions affecting or impacted by development and production at the SYU or to require revision to or supplementation of the development and production plan by a date certain; and for an award of costs and attorneys’ fees. Plaintiffs’ second amended complaint also seeks alternative relief under the APA including declaratory relief, vacatur, and remand of BOEM’s decision to the agency for further analysis and issuance of a new decision by a date certain. The Company intends to vigorously defend against the claims in this second amended complaint.

Regional Water Quality Control Board and Department of Fish and Wildlife Matters

On December 13, 2024, the California Central Coast Regional Water Quality Control Board (“Regional Board”) issued three letters to the Company related to Pipeline Segments 324 and 325 of the SYPS: (i) a Notice of Violation for an alleged unauthorized discharge of waste to waters of the state at an ephemeral stream in Santa Barbara County; (ii) a Directive to obtain regulatory coverage for an alleged unauthorized discharge of waste to waters of the state at the same ephemeral stream identified in item (i); and (iii) a First Notice of Non-Compliance for an alleged

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failure to obtain coverage under the Regional Board’s General Permit for Construction Stormwater Discharges in Santa Barbara, San Luis Obispo, and Kern Counties.

On December 17, 2024, the California Department of Fish and Wildlife (“CDFW”) issued a Notice of Potential Violation to Sable for alleged violations of the California Fish and Game Code at four separate sites within Santa Barbara County and San Luis Obispo County in California for alleged placement or fill of waste to waters.

On January 10, 2025, Sable submitted a written response to the Regional Board’s December 2024 letters. On January 13, 2025, Sable submitted a written response to CDFW’s December 2024 Notice of Potential Violation. On January 22, 2025, the Regional Board issued two additional letters to Sable related to Pipeline Segments 324 and 325: (i) a Second and Final Notice of Non-Compliance for an alleged failure to obtain coverage under the Regional Board’s General Permit for Construction Stormwater Discharges in Santa Barbara, San Luis Obispo, and Kern Counties; and (ii) an order requiring Sable to submit a technical report associated with the discharge of earthen material to waters of the state.

On January 31, 2025, Sable submitted an application to the Regional Board for regulatory coverage for the alleged discharge of waste to waters of the state at the location identified in the Regional Board’s December 13, 2024, Notice of Violation, and coverage was approved and issued by the Regional Board on March 20, 2025. On February 18, 2025, Sable submitted an application to CDFW for the same site, that application was deemed complete in March 2025, and work at the site was approved to proceed in May 2025. On February 21, 2025, the Company submitted a written response to the Regional Board’s Second and Final Notice of Non-Compliance. On March 7, 2025, Sable submitted its initial responses to the Regional Board’s order requiring Sable to submit a technical report, and on April 15, 2025, the Company submitted a supplemental response, that Sable committed to provide in its March initial response.

Sable submitted after-the-fact permitting applications to the Regional Board and CDFW with respect to potential discharges at the four sites identified in CDFW’s December 2024 notice during the first two weeks of March 2025. The Regional Board provided responses and requests for additional information in April 2025, to which the Company provided supplemental information on April 25, 2025. These sites were fully permitted by the Regional Board in June 2025 and by CDFW as of September 2025.

On April 15, 2025, the Regional Board issued a second Notice of Violation to the Company for an alleged failure to provide a sufficient response to the Regional Board’s request for a technical report and continued allegations of unauthorized discharges. On that same day, the Company submitted to the Regional Board further responses and additional information in response to the Regional Board’s request for a technical report, in which the Company identified additional sites that may require after-the-fact permitting. On April 17, 2025, the Regional Board issued Resolution R3-2025-0024, which referred any assessment of civil liability, injunctive and declaratory relief against the Company for its alleged violations of the California Water Code to the California Attorney General via the California Superior Court. After the issuance of Resolution R3-2025-0024, the Company continued to work with the Regional Board and CDFW to identify locations and submit additional after-the-fact permit applications. On July 24, 2025, the Regional Board issued a third Notice of Violation, requiring the Company to provide additional information in order to satisfy the request for a technical report, to which the Company timely responded on August 13, 2025 with all requested information. As a result of this process, nine additional sites were identified. As of January 29, 2026, the Regional Board has issued permits for the nine additional locations (for a total of 14 locations) identified by the Regional Board, CDFW, and the Company. CDFW issued the final Streambed Alteration Agreement for the nine locations on June 18, 2026. As such, all locations all permitted. Based on the information provided by Sable in response to the Notices of Non-Compliance associated with the Regional Board’s General Permit for Construction Stormwater Discharges, the Regional Board is not further requiring Sable to obtain coverage under that permit for the work performed.

On September 16, 2025, the Santa Barbara County District Attorney’s office filed a criminal Complaint against the Company in Santa Barbara County Superior Court, with 21 Counts being pursued (sixteen (16) misdemeanors and five (5) felonies) for alleged violation of the California Fish & Game Code and Water Code and based on the same underlying activities that were the focus of the Regional Board and CDFW actions. The Complaint references some of the 14 locations where the Company has already sought after-the-fact permitting from the Regional Board and

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CDFW, but also includes other locations where neither the Regional Board nor the CDFW are requiring any further action or permitting. The Company has retained counsel for defense. On October 3, 2025, the Regional Board filed a civil action in Santa Barbara County Superior Court alleging that the Company failed to secure permits at the 14 locations prior to undertaking the work, though the Complaint also notes the Company’s after-the-fact permitting efforts. The Complaint also alleges failure to comply with the request for a technical report. The Regional Board is seeking civil penalties and potentially limited injunctive relief. The Company filed its response to the Complaint on November 25, 2025. The parties attended an initial mediation session on April 8, 2026, and a second mediation session on May 13, 2026. A case management conference is scheduled for August 14, 2026.

County Permit Transfer Matter

In October 2024, the County of Santa Barbara’s Planning Commission approved the transfer of the Final Development Permits for the SYU, POPCO Facilities and Pipeline Segments 324 and 325 from Exxon and certain of its subsidiaries to the Company and its subsidiaries, PPC and POPCO, pursuant to Santa Barbara County Code Chapter 25B. That approval was appealed by various environmental advocacy groups to the Santa Barbara County Board of Supervisors. On February 25, 2025, the Board of Supervisors heard the appeals but, despite a County staff recommendation to reject the appeals, did not decide them, splitting 2-2 in a tie vote. As the appeals did not reverse the Planning Commission’s decision, the Company thereafter sought the permit transfers from the County, but it was unsuccessful.

On May 8, 2025, the Company, its subsidiaries, PPC and POPCO, and Exxon and certain of its subsidiaries filed suit against the County of Santa Barbara and Board of Supervisors seeking a writ of mandamus directing Santa Barbara County to issue updated Final Development Permits reflecting the Sable plaintiffs as holders thereof, for declaratory relief finding that the County’s Chapter 25B ordinances violate the United States and California Constitutions, and for damages. Several environmental advocacy groups intervened in the litigation. On September 12, 2025, after a hearing, the court issued an order of mandate requiring that “within 60 days of service of the writ of mandate on the Board, hold a de novo public hearing to affirm, reverse, or modify the Planning Commission’s decision regarding Petitioners/Plaintiffs’ Final Development Permit applications in this action in compliance with Santa Barbara County Code Chapter 25B-8, 9, and 10. If the Board is unable to reach a vote that affirms, reverses, or modifies the Planning Commission’s decision, the Board shall hold another de novo public hearing within 45 days, and if unable again, every 45 days thereafter.” The litigation was stayed pending the final action at the Board of Supervisors’ re-hearing. The County set a hearing in this matter pursuant to the writ of mandate for November 4, 2025. At that hearing, the Board voted to continue the hearing until December 16, 2025, and directed County staff to prepare findings that would grant the appeals and deny the transfer of the permits to Sable for consideration at that hearing. At the December 16 hearing, the Board adopted the findings to grant the appeals and deny the transfer of the permits.

On March 16, 2026, Petitioners filed an amended petition for writ of mandate and complaint for declaratory relief and damages. On April 29, 2026 Respondents filed a Motion to Dismiss Complaint in Part, which is set for hearing on July 10, 2026. On April 30, 2026, certain intervenors also filed a motion to dismiss one of the causes of action in the Petitioners’ amended petition. The intervenors’ motion is also set for hearing on July 10, 2026. Sable continues to pursue the case vigorously.

Johnson Class Action / Kelly and Vora Derivative Claims

On July 28, 2025, shareholder Tracy Johnson filed a putative class action complaint against the Company in the U.S. District Court for the Central District of California, captioned Johnson v. Sable Offshore Corp., et al., Case No. 2:25-cv-06869 (C.D. Cal) (the “Johnson Action”). The complaint alleged violations of Sections 10(b) and 20(a) of the Exchange Act of 1934 and Sections 11, 12(a)(2), and 15 of the Securities Act of 1933, on behalf of a putative class of investors who purchased or acquired Sable’s publicly traded securities between May 19, 2025 and June 3, 2025, when the Company engaged in a public offering, and/or pursuant and/or traceable to the offering. The complaint named as defendants the Company, certain of its officers, and the underwriters in the offering.

On October 27, 2025, the Court appointed a lead plaintiff. On November 10, 2025, the lead plaintiff filed an amended complaint purportedly on behalf of persons or entities who purchased or otherwise acquired publicly

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traded Sable securities between May 19, 2025 and November 4, 2025. The amended complaint dropped the claims under the Securities Act of 1933 and dropped the underwriters as defendants. On November 24, 2025, Defendants moved to dismiss the amended complaint. On December 8, 2025, the lead plaintiff filed a second amended complaint. The second amended complaint alleges, among other things, that the Company and certain of its officers made false and misleading statements or failed to disclose certain information regarding the Company’s business activities at the SYU. The plaintiff seeks damages, costs, expenses, expert and attorneys’ fees, and other unspecified relief. On January 5, 2026, Defendants moved to dismiss the second amended complaint. Plaintiff filed an opposition on January 12, 2026. Defendants’ reply was filed on January 26, 2026, and the motion to dismiss was heard on February 23, 2026. The motion remains under consideration by the Court. The Company intends to vigorously defend against the claims in this lawsuit.

On August 21, 2025, shareholder Bryce Kelly filed a verified shareholder derivative complaint, purportedly on behalf of the Company, in the U.S. District Court for the Central District of California, captioned Kelly v. Flores, et al., Case No. 2:25-cv-07848 (C.D. Cal.) (the “Kelly Action”). The complaint names as defendants the members of the Board of Directors of the Company, certain officers of the Company, and the underwriters of the Company’s May 2025 public offering. The complaint alleges claims for breach of fiduciary duty, aiding and abetting breach of fiduciary duty, unjust enrichment, waste of corporate assets, contribution under Section 10(b) and 21D of the Exchange Act of 1934, and contribution under Section 11(f) of the Securities Act of 1933, based on similar factual allegations to those at issue in the Johnson Action. On December 12, 2025, the Kelly Action was ordered stayed pending a ruling on the motion to dismiss filed in the Johnson Action.

On December 17, 2025, shareholder Udit Vora filed a verified shareholder derivative complaint, purportedly on behalf of the Company, in the U.S. District Court for the Central District of California, captioned Vora v. Flores, et al., Case No. 2:25-cv-11944 (C.D. Cal.) (the “Vora Action”). The complaint names as defendants the members of the Board of Directors of the Company and certain officers of the Company. The complaint alleges claims for breach of fiduciary duties, unjust enrichment, abuse of control, gross mismanagement, waste of corporate assets, and contribution under Sections 10(b) and 21D of the Securities Exchange Act of 1934, based on similar factual allegations to those at issue in the Johnson Action. On February 27, 2026, the Vora Action was ordered stayed pending a ruling on the motion to dismiss filed in the Johnson Action.

CalGEM

On May 9, 2025, the California Department of Conservation’s Geologic Energy Management Division (“CalGEM”) issued a letter to the Company asserting that the Company’s facility in LFC (the “Las Flores Canyon Facility”) is a “production facility” under the California Public Resources Code and therefore subject to various statutory requirements applicable to such facilities. In that letter, CalGEM demanded that the Company post a bond of approximately $31.9 million, submit certain oil spill contingency response and management plans for CalGEM’s review, and indicating that the failure to timely respond could result in civil penalties of up to $50,000 per day/per violation. On January 27, 2026, CalGEM issued a letter to the Company revising the bond amount to approximately $57.3 million based on CalGEM’s material increases to the estimates for labor, equipment, transportation, engineering, and handling costs associated with decommissioning and remediation after an additional on-site inspection by CalGEM. Sable disputes that CalGEM possesses jurisdiction to impose those requirements. On February 17, 2026, Sable filed a lawsuit against CalGEM, the State Oil and Gas Supervisor, the California Department of Conservation, and its Director, seeking a writ of mandate against these agencies and officers prohibiting them from enforcing those provisions of the California Public Resources Code applicable to oil and gas production facilities against Sable, as well as a declaratory judgment that Sable’s Las Flores Canyon Facility is not a “production facility” under California Public Resources Code section 3010. Separately, Sable and CalGEM are in disagreement over CalGEM’s authority to inspect the Las Flores Canyon Facility, with Sable repeatedly expressing a willingness to permit an inspection within the procedural mechanisms established in the Civil Discovery Act in light of the ongoing litigation. On April 15, 2026, the Attorney General’s Office filed a demurrer to Sable’s petition for writ of mandate and complaint. On April 22, 2026, CalGEM asserted that Sable’s request that CalGEM comply with the Civil Discovery Act constituted a denial of access to the facility and threatened to pursue enforcement action separate from the ongoing litigation. Thereafter, on May 15, 2026, the Attorney General's Office filed a special motion to strike (an anti-SLAPP motion) challenging Sable’s petition for writ of mandate and complaint on the basis that that CalGEM’s demand to Sable to post the $57.3 million dollar bond was protected speech, and Sable

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could not file a lawsuit challenging CalGEM’s jurisdiction on this basis. Both the demurrer and anti-SLAPP motions are set for hearing on July 31, 2026. Sable intends to vigorously oppose both motions and maintains that its lawsuit against CalGEM is both appropriate and meritorious.

California Senate Bill 237

On September 13, 2025, the California Legislature passed Senate Bill 237 (“SB 237”). On September 19, 2025, Governor Gavin Newsom signed SB 237 into law. SB 237 became effective January 1, 2026. SB 237 added Section 51014.1 to the California Government Code, which requires that an “existing oil pipeline … that has been idle, inactive, or out of service for five years or more, shall not be restarted without passing a spike hydrostatic testing program.” SB 237 also amends Section 30262 of the California Coastal Act to provide that the “[r]epair, reactivation, [] maintenance,” or “[d]evelopment associated with the repair, reactivation or maintenance of an oil pipeline that has been idled, inactive or out of service for five years or more” must obtain a “new coastal development permit.”

On September 29, 2025, PPC filed a Complaint for Declaratory Relief against the State of California in Kern County Superior Court seeking a declaratory judgment that the SYPS is not subject to SB 237 because the SYPS is not “idle, inactive, or out of service,” and because the Legislature did not give SB 237 retroactive effect. On January 21, 2026, the Company filed its First Amended Complaint adding a claim that the application of SB 237 to the SYPS is preempted by federal law. On February 20, 2026, the State of California removed the case to the U.S. District Court for the Eastern District of California.

On February 18, 2026, the Coastal Commission’s Executive Director sent a letter to the Company asserting that “in order for Sable to reactivate” SYPS Pipeline Segments 324 and 325, Sable must “at a minimum, apply for and receive a [coastal development permit] from the [Coastal] Commission” pursuant to Section 30262 of the Coastal Act, as amended by SB 237. On March 1, 2026, the Company responded to the Commission’s Executive Director and confirmed that the “legal issues raised in [the Director’s] letter are being actively litigated.” On March 19, 2026, the Coastal Commission’s Executive Director sent a further letter to the Company asserting that, among other things, “any reactivation” of Pipeline Segments 324 and 325 “is unpermitted development” pursuant to SB 237 and “would be grounds for further enforcement action by the [Coastal] Commission.” On March 20, 2026, the Company responded to the Commission’s Executive Director and reconfirmed that “the legal issues pertaining to SB 237 … are the subject of litigation.”

The State filed its Motion to Dismiss in the SB 237 litigation discussed above on March 30, 2026. PPC filed its opposition to the State’s Motion to Dismiss on April 13, 2026. That motion is pending. PPC filed a Motion for Leave to File Second Amended Complaint on April 10, 2026, which, among other things, requested to add the Coastal Commission as a defendant in this litigation. PPC’s Motion is also pending. Sable intends to continue to vigorously prosecute the action.

On June 9, 2026, the Coastal Commission’s Executive Director issued a Notice of Intent to Commence Cease and Desist Order and Administrative Penalty Proceedings to the Company alleging that the Company is undertaking “unpermitted development in the form of reactivation of the Las Flores Pipelines, CA-324 and CA-325, after more than five years of those pipelines being idled, inactive, and out of service.” The Notice states that the Executive Director will commence proceedings for the Coastal Commission to issue a Cease and Desist Order and impose an Administrative Penalty on the Company, which “would include a direction to cease and desist from the active use of the portions of the Las Flores Pipelines, CA-324 and CA-325 … that lie within the Coastal Zone for the transport of oil until a Coastal Development Permit [] authorizing reactivation of the Pipelines is secured.” On June 12, 2026, the Company responded to the Notice and stated that “the issues [] raised [in the Notice] implicate fundamental legal questions that are currently the subject of active litigation involving the State of California.” As such, the Company requested that “the Notice be withdrawn or held in abeyance under the court rules on the pending motion to add the Coastal Commission as a defendant,” in which case “the matters raised in the Notice will already be before the court and may be appropriately resolved in that forum.”

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Government Requests

On December 2, 2025, the Company received subpoenas from the United States Attorney’s Office for the Southern District of New York (“SDNY”) and SEC requesting documents (the “Government Requests”). The document requests relate to issues raised in an October 31, 2025 report published by Hunterbrook Media (the “Hunterbrook Report”) and the trading of Company securities, as well as related issues. The Company is providing documents and cooperating with the Government Requests.

State Parks Matters

On March 13, 2026, Sable and PPC filed suit against the California Department of Parks and Recreation (“State Parks”) in U.S. District Court, Central District of California, captioned Sable Offshore Corp., et al. v. Quintero, Case No. 2:26-cv-02739. Sable is seeking declaratory judgment that (i) State Parks is preempted by federal law from attempting to regulate or otherwise interfere with the operation of the SYPS, including by attaching regulatory requirements as conditions to easement rights or rights-of-way in Gaviota State Park, and (ii) the Defense Production Act Order bars any legal or equitable action by State Parks seeking to prevent Sable from complying with the terms of the DPA Order. State Parks moved to dismiss the case on May 26, 2026. That motion is set for hearing on June 29, 2026.

Separately, on March 17, 2026, State Parks filed a Complaint for Injunctive Relief in Superior Court of California (Santa Barbara County) alleging that, by transporting oil through the portions of the SYPS in Gaviota State Park, Sable and PPC are trespassing on State Parks’ property. State Parks seeks an order (i) enjoining Sable and PPC from transporting oil through Gaviota State Park and (ii) directing Sable and PPC to remove that portion of SYPS Pipeline Segments 325 that runs under and through Gaviota State Park. State Parks also seeks declaratory relief as to its property rights within Gaviota State Park. On March 19, 2026, Sable filed notice of removal to federal court. The matter is now being heard in the U.S. District Court, Central District of California, caption California Department of Parks and Recreation v. Sable Offshore Corp., et al., Case No. 2:26-cv-02946. On March 27, 2026, State Parks filed a motion for Preliminary Injunction. The Court denied the motion for preliminary injunction on May 28, 2026. Sable answered this complaint on May 18, 2026. Separately, the Department of Justice on behalf of the United States of America moved to intervene as a defendant; the court granted this motion on June 3, 2026, and the United States filed its answer on June 10, 2026.

Office of State Fire Marshal Matters

On December 17, 2024, the California Office of the State Fire Marshal (“OSFM”) approved Sable’s implementation of enhanced pipeline integrity standards for Pipeline Segments 324 and 325 by granting state waivers of certain regulatory requirements (“State Waivers”) related to cathodic protection and seam weld corrosion for the Pipeline Segments 324 and 325.

On February 11, 2025, the Pipeline and Hazardous Materials Safety Administration (“PHMSA”) notified the OSFM that PHMSA did not object to OSFM’s granting of the State Waivers.

Two lawsuits were filed against OSFM (as Defendant) and Sable and PPC (as Real Parties in Interest) challenging OSFM’s issuance of the State Waivers. On April 15, 2025, the Center for Biological Diversity and the Wishtoyo Foundation filed a Verified Petition for Writ of Mandate and Complaint for Declaratory and Injunctive Relief alleging that OSFM violated federal and state pipeline safety laws and the California Environmental Quality Act (“CEQA”) in issuing the State Waivers. The Environmental Defense Center, Get Oil Out!, Santa Barbara County Action Network, Sierra Club, and Santa Barbara Channelkeeper also filed a Verified Petition for Writ of Mandate and Complaint for Declaratory and Injunctive Relief against OSFM (as Defendant) and Sable and PPC (as Real Parties in Interest) alleging similar claims. Both groups of Petitioners seek a court order declaring the State Waivers void and directing OSFM to vacate and set aside the State Waivers until OSFM complies with its obligations under federal and state pipeline safety laws and CEQA.

A hearing was held on July 18, 2025, and on July 29, 2025, the court entered an order granting petitioners’ application for issuance of preliminary injunction in part, ruling that, absent further order of the court, Sable may resume petroleum transportation through Pipeline Segments 324 and 325 ten court days after Sable files notice that

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Sable has received all necessary approvals and permits for such resumption. The court clarified that Sable is not prevented from taking steps toward resuming petroleum transportation through Pipeline Segments 324 and 325, and that OSFM is not prevented from taking steps it finds appropriate in its regulatory capacity with respect to Sable’s Restart Plans as contemplated by the federal Consent Decree.

On January 5, 2026, the Company filed a Motion for Reconsideration of the Preliminary Injunction in the State Waivers litigation. The Motion requested that the preliminary injunction be rescinded as moot given PHMSA’s determination and exercise of regulatory oversight for Pipeline Segments 324 and 325. On February 26, 2026, the Company notified OSFM that, effective immediately, it had “relinquishe[d], surrender[ed] and abandon[ed] the State Waivers” given PHMSA’s determination and exercise of regulatory oversight for Pipeline Segments 324 and 325. On February 27, 2026, the Santa Barbara County Superior Court denied the Company’s Motion for Reconsideration of the Preliminary Injunction. On March 16, 2026, Sable and PPC filed ex parte Notice of the Defense Production Act Order and Request for Immediate Recission of the Preliminary Injunction. On the same day, Plaintiffs filed ex parte Application for Enforcement of Preliminary Injunction and for an Order to Show Cause why Real Parties should not be found in contempt of Court. On March 17, 2026, the Court continued the hearing to April 17, 2026. On April 17, 2026, the Santa Barbara County Superior Court denied the Company’s Motion for Reconsideration of the Preliminary Injunction and continued the hearing on Plaintiffs’ Motion for an Order to Show Cause to May 22, 2026.

On May 14, 2026, the Company and non-party the United States removed this matter to federal court under federal officer jurisdiction removal. The federal matter is captioned Center for Biological Diversity et a. v. California Department of Forestry and Fire Protection et al., Case No. 2:26-cv-05242-SVW-SSC (C.D. Cal. May 14, 2026). Both Petitioners and the State of California have moved to remand; that motion was heard for argument on June 8, 2026, and is pending. Separately, Sable has moved for reconsideration of the preliminary injunction. That motion is set for hearing June 29, 2026. Sable and PPC intend to continue to defend these cases vigorously.

PHMSA Matters

On October 22, 2025, OSFM sent a letter to Sable alleging deficiencies in the Company’s compliance with the State Waivers. Sable strongly disagrees with the allegations, which are inconsistent with the plain language and numerous discussions with OSFM experts confirming that Sable was in compliance with the State Waivers. Sable provided its initial response to the OSFM on October 23, 2025, setting forth the Company’s objections to OSFM’s new interpretation of the State Waiver conditions.

On November 26, 2025, the Company notified PHMSA of its determination that the SYPS, including Pipeline Segments 324 and 325, constitutes an interstate pipeline facility under the Pipeline Safety Act (“PSA”), and requested that PHMSA exercise regulatory oversight over the SYPS and transition oversight from OSFM. On December 17, 2025, PHMSA issued a letter to the Company concurring in its determination that the SYPS is an interstate pipeline under the PSA, and informed the Company that “PHMSA is notifying OSFM that [Pipeline Segments 324 and 325 are] subject to the regulatory oversight of PHMSA.” On December 22, 2025, PHMSA notified the Company that PHMSA had approved the Company’s Restart Plan for Pipeline Segments 324 and 325 after reviewing extensive documentation provided by Sable to PHMSA and conducting a multi-day field inspection. On December 23, 2025, PHMSA issued an Emergency Special Permit to the Company related to cathodic protection and seam weld corrosion along Pipeline Segments 324 and 325.

On December 24, 2025, in the U.S. Court of Appeals for the Ninth Circuit, the Environmental Defense Center, Get Oil Out!, Santa Barbara County Action Network, Santa Barbara Channelkeeper, the Center for Biological Diversity, and the Wishtoyo Foundation (as Petitioners) filed a Petition for Review and Emergency Motion to Stay with respect to PHMSA’s approval of the Company’s Restart Plan and issuance of the Emergency Special Permit (Case No. 25-8059) (the “PHMSA Litigation”). The Petitioners named the U.S. Department of Transportation and PHMSA and their respective heads as Respondents. On December 25, 2025, the Company and PPC filed an Emergency Motion for Leave to Intervene in the PHMSA Litigation. Both the U.S. government entities and the Company parties opposed the stay request. On December 31, 2025, the Ninth Circuit Court of Appeals granted the Company’s Motion for Leave to Intervene and denied the Petitioners’ Motion to Stay PHMSA’s approval of the

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Company’s Restart Plan and issuance of the Emergency Special Permit. The Court also granted expedited review of the Petition.

On January 22, 2026, the Company submitted an application for a longer-term Special Permit from PHMSA related to cathodic protection and seam weld corrosion along Pipeline Segments 324 and 325. By letter dated February 13, 2026 to PHMSA, the Company committed to continued compliance with the conditions of the Emergency Special Permit until PHMSA made a determination on the Company’s application for Special Permit. The Emergency Special Permit expired on February 21, 2026. On June 25, 2026, PHMSA issued a ten-year Special Permit to the Company related to cathodic protection and seam weld corrosion along Pipeline Segments 324 and 325.

On January 23, 2026, a second petition was filed in the U.S. Court of Appeals for the Ninth Circuit by the State of California, also against the U.S. Department of Transportation; Sean Duffy, in his official capacity as Secretary of the U.S. Department of Transportation; Pipeline and Hazardous Materials Safety Administration (PHMSA); and Paul Roberti, in his official capacity as Administrator of PHMSA. The second petition, filed by the State of California, Attorney General and OSFM, challenges the Emergency Special Permit, but also challenges PHMSA’s assertion of jurisdiction over the SYPS. The two petitions have been consolidated and hearing has been set for July 7, 2026. Sable intends to defend the cases vigorously.

Consent Decree Matters

On March 16, 2026, OSFM and State Parks (“California Plaintiffs”) filed an ex parte Emergency Motion to Enforce Consent Decree in United States, et al. v. Plains All American Pipeline, L.P., et al., Case No. 2:20-cv-02415(C.D. Cal) in U.S. District Court seeking an order enforcing the Consent Decree and ordering Sable not to restart or continue operating Pipeline Segments 324 and 325 of the SYPS. The Department of Justice (“DOJ”), on behalf of the United States of America (the “United States”), filed its opposition to California Plaintiffs’ Ex Parte Motion on March 18, 2026. On March 23, 2026, the Court denied the California Plaintiffs’ Ex Parte Motion, finding “no evidence to support a showing of irreparable prejudice” to California Plaintiffs’ cause if required to seek relief through a regularly noticed motion. On March 30, 2026, the DOJ, on behalf of the United States, filed a Motion to Terminate or Modify the Consent Decree. On April 1, 2026, Defendants Plains All American Pipeline L.P. and Plains Pipeline L.P. filed Joinder to the United States’ Motion to Terminate or Modify the Consent Decree. On the same day, Sable and PPC, as nonparties to the cases, filed a Memorandum in Support of the United States’ motion, and on April 27, 2026, filed a combined brief in opposition to California’s Motion to Enforce and reply brief in support of the United States’ Motion to Terminate or Modify the Consent Decree. A hearing was held on California Plaintiffs’ Motion to Enforce Consent Decree and the United States’ Motion to Terminate the Consent Decree on June 8, 2026, and the Court ordered supplemental briefing, which was completed by the parties June 18, 2026.

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THE OFFERING

The summary below describes the principal terms of the notes. Certain of the terms of the notes described below are subject to important limitations and exceptions that are described in more detail under the caption “Description of Notes.” As used in this section, “we,” “our” and “us” refer to Sable Offshore Corp. and not to its subsidiaries.


Issuer			Sable Offshore Corp.

Notes			$300,000,000 aggregate principal amount of % convertible senior notes due 2031. We have granted the underwriters an option, which is exercisable within 30 days after the date of this prospectus supplement, to purchase up to an additional $45,000,000 aggregate principal amount of notes solely to cover over-allotments.

Ranking			The notes will be our senior, unsecured obligations and will be:

			•equal in right of payment with our existing and future senior, unsecured indebtedness;

			•senior in right of payment to our existing and future indebtedness that is expressly subordinated to the notes;

			•effectively subordinated to our existing and future secured indebtedness, including indebtedness under the New Senior Secured Credit Facilities, to the extent of the value of the collateral securing such indebtedness, and upon establishment of a borrowing base, any borrowings under the Senior Revolver, to the extent of the value of the collateral securing such indebtedness;

			•structurally subordinated with respect to the assets of our subsidiaries in relation to all existing and future indebtedness and other liabilities, including trade payables, and (to the extent we are not a holder thereof) preferred equity, if any, of our subsidiaries, including indebtedness under the New Senior Secured Credit Facilities.

			As of March 31, 2026, on an as adjusted basis after giving effect to the Transactions, we would have had (i) $975.0 million principal amount of outstanding indebtedness (or, if the underwriters fully exercise their option to purchase additional notes $1.02 billion), including $675.0 million principal amount of secured indebtedness under the Term Loan B which would rank effectively senior to the notes to the extent of the value of the collateral securing such indebtedness. In addition, upon consummation of the Transactions, the Senior Revolver will permit secured indebtedness for secured hedging arrangements, which would rank effectively senior to the notes to the extent of the value of the collateral securing such indebtedness. Upon establishment of a borrowing base, any borrowings under the Senior Revolver would also rank effectively senior to the notes to the extent of the value of the collateral securing such indebtedness. The indenture governing the notes will not prohibit us or our subsidiaries from incurring additional indebtedness, including senior or secured indebtedness, in the future.

Maturity			July 1, 2031, unless earlier repurchased, redeemed or converted.

Interest			% per annum, payable semi-annually in arrears on January 1 and July 1 of each year, beginning on January 1, 2027. In addition, special interest will accrue on the notes in the circumstances described under the captions “Description of Notes—Events of Default—Special Interest as Sole Remedy for Certain Reporting Defaults,” respectively.

Conversion Rights			Noteholders may convert their notes at their option only in the following circumstances:

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			•during any calendar quarter commencing after the calendar quarter ending on September 30, 2026, if the last reported sale price per share of our common stock exceeds 130% of the conversion price for each of at least 20 trading days during the 30 consecutive trading days ending on, and including, the last trading day of the immediately preceding calendar quarter;

			•during the five consecutive business days immediately after any 10 consecutive trading day period (such 10 consecutive trading day period, the “measurement period”) in which the trading price per $1,000 principal amount of notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price per share of our common stock on such trading day and the conversion rate on such trading day;

			•upon the occurrence of certain corporate events or distributions on our common stock, as described in this prospectus supplement;

			•if we call such notes for redemption; and

			•at any time from, and including, April 1, 2031 until the close of business on the second scheduled trading day immediately before the maturity date.

			We will settle conversions by paying or delivering, as applicable, cash, shares of our common stock or a combination of cash and shares of our common stock, at our election, based on the applicable conversion rate(s). If we elect to deliver cash or a combination of cash and shares of our common stock, then the consideration due upon conversion will be determined over an observation period consisting of 40 “VWAP trading days” (as defined in this prospectus supplement). The initial conversion rate is shares per $1,000 principal amount of notes, which represents an initial conversion price of approximately $ per share, and is subject to adjustment as described in this prospectus supplement. If a “make-whole fundamental change” (as defined in this prospectus supplement) occurs, then we will in certain circumstances increase the conversion rate for a specified period of time. See “Description of Notes—Conversion Rights.”

Optional Redemption			The notes will be redeemable, in whole or in part (subject to certain limitations described below), at our option at any time, and from time to time, on or after July 6, 2029 and on or before the 40th scheduled trading day immediately before the maturity date, at a cash redemption price equal to the principal amount of the notes to be redeemed, plus accrued and unpaid interest, if any, to, but excluding, the redemption date, but only if the last reported sale price per share of our common stock exceeds 175% of the conversion price on (1) each of at least 20 trading days, whether or not consecutive, during the 30 consecutive trading days ending on, and including, the trading day immediately before the date we send the related redemption notice; and (2) the trading day immediately before the date we send such notice. However, we may not redeem less than all of the outstanding notes unless at least $100 million aggregate principal amount of notes are outstanding and not called for redemption as of the time we send the related redemption notice. In addition, calling any note for redemption will constitute a make-whole fundamental change with respect to that note, in which case the conversion rate applicable to the conversion of that note will be increased in certain circumstances if it is converted after it is called for redemption. See “Description of Notes—Optional Redemption.”

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Repurchase at the Option of the Noteholders After a Fundamental Change			If a “fundamental change” (as defined in this prospectus supplement) occurs, then, except as described in this prospectus supplement, noteholders may require us to repurchase their notes at a cash repurchase price equal to the principal amount of the notes to be repurchased, plus accrued and unpaid interest, if any, to, but excluding, the fundamental change repurchase date. See “Description of Notes—Fundamental Change Permits Noteholders to Require Us to Repurchase Notes.”

Repurchase at the Option of the Noteholders on July 6, 2029			Noteholders may require us to repurchase their notes on July 6, 2029, at a cash repurchase price equal to the principal amount of the notes to be repurchased, plus accrued and unpaid interest, if any, to, but excluding, the repurchase date. See “Description of Notes—Purchase of Notes by Us at the Option of the Noteholders.”

Trustee, Paying Agent and Conversion Agent			U.S. Bank Trust Company, National Association.

No Public Market			The notes are a new class of securities for which no public market currently exists. We do not intend to apply to list the notes on any securities exchange or for quotation on any inter-dealer quotation system. Accordingly, a liquid market for the notes may never develop. Certain of the underwriters have advised us that they intend to make a market in the notes. However, they are not obligated to do so and may discontinue any market-making activity at any time and without notice.

The New York Stock Exchange Symbol			Our common stock is listed on the New York Stock Exchange under the symbol “SOC.” On June 29, 2026, the last reported sale price of our common stock was $6.97 per share.

Use of Proceeds			The net proceeds from the offering will be approximately $ , after deducting discounts and commissions payable to the underwriters and estimated offering expenses payable by us. The Company intends to use these proceeds, together with the proceeds from the Concurrent Common Stock Offering and borrowings under the Term Loan B, to repay the Existing Senior Secured Term Loan, to pay fees and expenses in connection with the Transactions and for general corporate purposes. For further information, see the section of this prospectus supplement entitled “Use of Proceeds.”

Concurrent Common Stock Offering			Concurrently with this offering, we are offering, pursuant to a separate prospectus supplement, $100.0 million of our common stock, plus up to an additional $15.0 million of our common stock that the underwriters of the Concurrent Common Stock Offering have the option to purchase from us. We estimate that the net proceeds to us from the concurrent common stock offering, if it is consummated, will be approximately $ million (or approximately $ million if the underwriters of the Concurrent Common Stock Offering fully exercise their option to purchase additional shares of common stock), after deducting the underwriting discounts and commissions and our estimated offering expenses. The completion of this offering is contingent upon the completion of the Concurrent Common Stock Offering, and the completion of the Concurrent Common Stock Offering is contingent upon the completion of this offering. This prospectus supplement does not constitute an offer to sell, or the solicitation of an offer to buy, any securities being offered in the Concurrent Common Stock Offering. The prospectus supplement for the Concurrent Common Stock Offering does not constitute an offer to sell, or the solicitation of an offer to buy, any of the notes, or the shares of common stock, if any, issuable upon conversion of the notes, we are offering pursuant to this prospectus supplement. See “The Concurrent Common Stock Offering.”

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Risk Factors			Investing in the notes involves risks. See “Risk Factors.” You should carefully consider all of the information included in this prospectus supplement before investing in the notes. In particular, you should evaluate the specific risks described in the section entitled “Risk Factors” in this prospectus supplement and in our Annual Report on Form 10-K for the year ended December 31, 2025, and the other information incorporated by reference in this prospectus supplement, for a discussion of certain risks relating to an investment in the notes.

Material U.S. Federal Income Tax Considerations			For a description of material U.S. federal income tax considerations of purchasing, owning, converting and disposing of the notes and owning and disposing of shares of our common stock, if any, issuable upon conversion of the notes, see “Material U.S. Federal Income Tax Considerations.”

Book-Entry Form			We will initially issue the notes in the form of one or more global notes registered in the name of Cede & Co., as nominee of The Depository Trust Company (“DTC”), without interest coupons, which we will deposit with the trustee as custodian for DTC. Beneficial interests in global notes will be shown on, and transfers of global notes will be effected only through, the records maintained by DTC. Except in limited circumstances, we will not issue certificated notes. See “Description of Notes—Book Entry, Settlement and Clearance.”

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RISK FACTORS

Investing in the notes involves a high degree of risk. In addition to the other information included and incorporated by reference in this prospectus supplement or the accompanying prospectus, you should carefully consider the risks described or referred to below before deciding to purchase the notes. In making an investment decision, you should carefully consider the risks and uncertainties described under the heading “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2025 and our Quarterly Report on Form 10-Q for the quarter ended March 31, 2026 that are incorporated herein by reference and any future filings made by us pursuant to Section 13(a), 13(c), 14 or 15(d) of the Exchange Act, prior to the termination of this offering, as well as the risk factors below. The occurrence of any of these risks may materially harm our business, results of operations and financial condition. As a result, the trading price of the notes and our common stock may decline, and you might lose part or all of your investment. As used in this section, “we,” “our” and “us” refer to Sable Offshore Corp. and not to its subsidiaries.

Risks Associated with Our Operations

The requirements to transport petroleum through Pipeline Segments 324 and 325 include those set forth in a Consent Decree with federal and state agencies, and we believe the Company has substantially complied with such requirements. While we also believe that the prerequisites for terminating the Consent Decree have been satisfied, there is no assurance that the Consent Decree will be terminated or, in the alternative, modified.

Production from the SYU Assets was suspended as a result of the Line 901 incident and consequent suspension of service. In May 2025 we restarted production from the SYU Assets and resumed petroleum transportation through the SYPS. In March 2026, in compliance with the DPA Order, we resumed petroleum transportation through Pipeline Segments 324 and 325 and subsequently resumed oil sales from the SYU Assets. We are required to satisfy certain requirements related to Pipeline Segments 324 and 325 in connection with recommencing oil sales. Such requirements include conditions set forth in a U.S. federal district court Consent Decree executed by Plains and relevant U.S. and State of California government agencies. Sable believes all such requirements have been satisfied. On January 14, 2026, both Plains and the Company submitted letters to the United States Department of Justice Environment and Natural Resources Division and the California Office of the Attorney General Natural Resources Law Section regarding the termination of the Consent Decree because the prerequisites for termination have been satisfied.

On March 16, 2026, OSFM and State Parks (“California Plaintiffs”) filed an ex parte Emergency Motion to Enforce Consent Decree in United States, et al. v. Plains All American Pipeline, L.P., et al., Case No. 2:20-cv-02415 (C.D. Cal) in U.S. District Court seeking an order enforcing the Consent Decree and ordering Sable not to restart or continue operating Pipeline Segments 324 and 325 of the SYPS. The Department of Justice (“DOJ”), on behalf of the United States of America (the “United States”), filed its opposition to California Plaintiffs’ Ex Parte Motion on March 18, 2026. On March 23, 2026, the Court denied the California Plaintiffs’ Ex Parte Motion, finding “no evidence to support a showing of irreparable prejudice” to California Plaintiffs’ cause if required to seek relief through a regularly noticed motion. On March 30, 2026, the DOJ, on behalf of the United States, filed a Motion to Terminate or Modify the Consent Decree. Sable and PPC, as nonparties to the cases, filed a Memorandum in Support of the United States’ motion on April 1, 2026, and filed a combined brief in opposition to California’s Motion to Enforce and reply brief in support of the United States’ Motion to Terminate or Modify the Consent Decree on April 27, 2026. A hearing was held on California Plaintiffs’ Motion to Enforce Consent Decree and the United States’ Motion to Terminate or Modify the Consent Decree on June 8, 2026, and the Court ordered supplemental briefing.

There is no guarantee that the Court will grant the DOJ’s Motion to Terminate or Modify the Consent Decree. If the Consent Decree is not modified or otherwise terminated, State of California government agencies which are parties to the Consent Decree have alleged that the Company has not satisfied its requirements, which may delay or interrupt our operations and limit our growth and revenue, which could have a material adverse effect on our business and financial condition or may impact our ability to service and repay or refinance the New Senior Secured Credit Facilities or the notes.

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The DPA Order is subject to legal challenges and any adverse ruling could require us to cease or curtail petroleum transportation through the SYPS, which could have a material adverse effect on our results of operations, financial condition, and ability to service the notes.

Our ability to transport petroleum through Pipeline Segments 324 and 325, and accordingly our ability to generate revenue from oil sales, is currently based on the requirements set forth in the DPA Order.

On March 30, 2026, the State of California filed a Complaint for Declaratory and Injunctive Relief in the U.S. District Court for the Central District of California (State of California v. Chris Wright, et al., Case No. 2:26-cv-03396), alleging that the DPA Order violates provisions of the Administrative Procedure Act and the U.S. Constitution. The Court held a hearing on the State’s Motion for Preliminary Injunction on June 8, 2026, and ordered supplemental briefing. The outcome and timeline of this litigation, including with respect to the supplemental briefing ordered by the Court, remain uncertain.

If the State of California’s challenge, or any future legal challenge, to the DPA Order is successful, including through the granting of a preliminary injunction or other injunctive relief, the requirement that we transport petroleum through Pipeline Segments 324 and 325 could be vacated, enjoined, or otherwise rendered ineffective, and we could be required to cease or curtail petroleum transportation through the SYPS. Any such cessation or curtailment would materially reduce or terminate our ability to sell oil produced from the SYU Assets, which could have a material adverse effect on our business, results of operations, financial condition, and our ability to service and repay or refinance the New Senior Secured Credit Facilities or the notes.

In addition, even if the current challenge is resolved favorably, we cannot assure you that additional legal challenges to the DPA Order will not be brought by other parties in the future. The State of California or its agencies may also pursue additional regulatory, legislative, or enforcement actions directed at impeding pipeline operations on the SYPS, including through further enforcement proceedings by the Coastal Commission, the enactment of additional legislation similar to SB 237, or other state or local measures. Any such actions, or the threat thereof, could create additional uncertainty around our operations, increase our legal and compliance costs, and further impair our ability to transport petroleum through the SYPS, any of which could have a material adverse effect on our business, financial condition, results of operations, and our ability to service the notes.

The timing of returning wells to production is subject to risks that may cause delays and initial production rates are expected to decline.

We returned a number of wells to production on Platform Harmony beginning in May 2025 and Platform Heritage beginning in April 2026, and we expect to return a number of additional wells to production on Platforms Harmony, Heritage and Hondo. Operations on offshore platforms are subject to numerous risks and potential delays.

In addition, oil and natural gas wells typically exhibit a decline in production over time. Accordingly, initial production rates as our wells are brought back into production are expected to be higher than the rate of sustained production at such wells. There is substantial uncertainty regarding the amount and timing of production decline from recently reopened wells.

Our assumptions and estimates regarding the total costs associated with the OS&T Strategy may be inaccurate.

If pursued, we currently estimate remaining start-up expenses associated with the OS&T Strategy of approximately $475.0 million to recommence offshore oil sales, excluding corporate working capital. The expenditures will primarily be directed towards the procurement of a suitable vessel and necessary upgrade and installation costs with respect to such vessel and our platforms, and obtaining necessary regulatory approvals. This estimate of costs to recommence offshore oil sales considers currently available facts and presently enacted laws and regulations, but it is subject to uncertainties associated with the assumptions that we have made. For example, because the markets for OS&T vessels and vessel refurbishment and upgrading are competitive, and our estimates for the cost of procurement and planned upgrades are based on our understanding of the relevant markets and current supply of suitable vessels and contracts, the actual cost of such a vessel and the related upgrades may exceed our expectations. In addition, the costs of equipment, repairs and maintenance, the costs of operating personnel, the costs to obtain governmental approvals, and legal, consulting and other professional expenses could turn out to be higher than we

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have estimated. In addition, if we pursue the OS&T Strategy, we will need to procure additional financing, which may not be available on acceptable terms or at all. We also may experience increases in costs and delays. In addition, the New Senior Secured Credit Facilities limit our capital expenditures, our general and administrative costs and our ability to incur additional debt, and accordingly we may require consent of the lenders in order to complete the capital expenditures and general and administrative costs necessary to implement the OS&T strategy and/or incur additional indebtedness to fund such expenditures. See “Description of Other Indebtedness.”

Our assumptions and estimates regarding the total costs associated with the Buoy Strategy may be inaccurate.

If we pursue the Buoy Strategy, we currently estimate remaining start-up expenses of approximately $125.0 million to recommence offshore oil sales, excluding corporate working capital. The expenditures will primarily be directed towards preparing for the implementation of the Buoy Strategy, including installation costs with respect to such buoy and laying flowlines from our platforms, obtaining necessary regulatory approvals and recommencing offshore oil sales. This estimate of costs to commence offshore oil sales via the Buoy Strategy considers currently available facts and presently enacted laws and regulations, but it is subject to uncertainties associated with the assumptions that we have made. For example, because our estimates for the cost of installation are based on our understanding of the relevant markets and current supply of materials and contracts, the actual cost of a buoy and the installation thereof may exceed our expectations. In addition, the costs of equipment, repairs and maintenance, the costs of operating personnel, the costs to obtain governmental approvals, and legal, consulting and other professional expenses could turn out to be higher than we have estimated. In addition, if we pursue the Buoy Strategy, we will need to procure additional financing, which may not be available on acceptable terms or at all. We also may experience increases in costs and delays.

Our assumptions and estimates regarding future capital expenditures may be inaccurate.

We have included in this prospectus supplement estimates regarding future capital expenditures. These estimates are based on management's current expectations and beliefs, and are subject to uncertainties risks outside of our control. Accordingly, if our costs exceed our estimates, we may need to procure additional financing, which may not be available on acceptable terms or at all. We also may experience increases in costs and delays.

We are subject to complex federal, state, local and other laws, regulations and permits that could adversely affect the cost, manner, ability or feasibility of conducting our operations.

Our oil and natural gas development and production operations are subject to complex and stringent laws and regulations administered by governmental authorities vested with broad authority relating to the exploration for and the development, production and transportation of oil, natural gas, and NGLs. To conduct our operations in compliance with these laws and regulations, we must obtain and maintain numerous permits, approvals and certificates from various federal, state and local governmental authorities. We must comply with a number of requirements related to the SYPS, including Pipeline Segments 324 and 325, which include those conditions set forth in a U.S. federal district court Consent Decree executed by Plains and relevant U.S. and State of California government agencies. While we believe we are in compliance with the Consent Decree, State of California government agencies which are parties to the Consent Decree alleged that the Company has not satisfied its requirements, which may delay or interrupt our operations and limit our growth and revenue, or may impact our ability to service and repay or refinance the New Senior Secured Credit Facilities or the notes. In order to commence offshore oil sales pursuant to the OS&T Strategy or the Buoy Strategy, if pursued, we would need to obtain regulatory authorizations, including clearance from BOEM. We may incur substantial costs in order to maintain compliance with these existing laws and regulations, and we may experience delays in procuring required approvals, which may increase our costs or delay our ability to produce revenue. Failure to comply with laws and regulations applicable to our operations, including any evolving interpretation and enforcement by governmental authorities, could have a material adverse effect on our business, financial condition, results of operations and cash flows.

Our oil, natural gas, and NGLs development and production operations are also subject to stringent and complex federal, state and local laws and regulations governing the release or discharge of materials into or through the environment, worker health and safety aspects of our operations, or otherwise relating to property rights, environmental protection, resource protection, and damage to natural resources. These laws and regulations may

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impose numerous obligations applicable to our operations, including regulated drilling activities; operation, repair and maintenance of the Santa Ynez Pipeline System; potential installation and use of an OS&T or the Buoy; the restriction of types, quantities and concentrations of materials that can be released or discharged into or through the environment; required authorizations for, or the limitation or prohibition of, drilling, production and transportation activities on certain lands lying within wilderness, wetlands, seismically active, park and recreation areas and other protected or preserved areas; the application of specific health and safety criteria addressing worker protection; and the imposition of substantial liabilities for pollution and natural resources damages potentially resulting from our operations. The EPA, BOEM, BSEE, PHMSA, OSFM, CalGEM, Coastal Commission, CDFW, Regional Board, the SLC, State Parks and numerous other governmental authorities have the authority to enforce compliance with these laws and regulations and the permits or other authorizations issued by them, often requiring difficult and costly compliance measures or corrective actions. Failure to comply with these laws and regulations may result in the assessment of sanctions, including administrative, civil or criminal penalties, the imposition of investigatory or remedial obligations, injunctive and mitigation relief, the suspension or revocation of necessary permits, licenses and authorizations, the requirement that additional pollution controls be installed and, in some instances, the issuance of orders limiting or prohibiting some or all of our operations. We may also experience delays in obtaining or be unable to obtain required permits which may delay or interrupt our operations and limit our growth and revenue, or may impact our ability to service and repay or refinance the New Senior Secured Credit Facilities or the notes. On March 29, 2026, the Company initiated oil sales upon filling the SYPS, which accelerated the maturity date of the Existing Senior Secured Term Loan to June 26, 2026. On June 22, 2026, the Company and Exxon entered into the Existing Senior Secured Term Loan Amendment, which extended the maturity date of the Existing Senior Secured Term Loan to the earlier to occur of (a) July 24, 2026, and (b) the acceleration of the Existing Senior Secured Term Loan following any Event of Default (as defined therein).

Under certain environmental laws that impose strict as well as joint and several liability, we may be required to remediate or conduct other response actions at or in relation to contaminated properties currently owned or operated by us or facilities of third parties that received waste generated by our operations regardless of whether such contamination resulted from the conduct of others or from the consequences of our own actions that were in compliance with all applicable laws at the time those actions were taken. In addition, claims for damages to persons or property, including natural resources, may result from the environmental, health and safety impacts of our operations. Moreover, public interest in the protection of the environment has increased in recent years. New laws and regulations continue to be enacted, particularly at the state level, and environmental legislation and regulations applied to the crude oil and natural gas industry could continue, resulting in increased costs of doing business and consequently affecting profitability. Additionally, any changes in environmental regulations related to biodiversity protection could impose further operational constraints and costs. To the extent laws are enacted, or other governmental action is taken that restricts drilling, production and transportation activities, or imposes more stringent and costly operating, waste handling, disposal and cleanup requirements, our business, prospects, financial condition or results of operations could be materially adversely affected.

Environmental groups may initiate litigation and take other actions to delay or prevent us from obtaining or maintaining required approvals.

Environmental groups have had increasing success in limiting oil and gas production by appealing to regulatory agencies, filing lawsuits and applying political pressure. We are required to obtain and maintain a series of permits or regulatory approvals from, among other agencies, PHMSA and BOEM. The laws and procedures governing these and other permits and regulatory approvals often allow third parties, including environmental groups, to challenge the draft permits and/or permit approvals through the relevant agencies and other administrative appeal processes. These groups may also file lawsuits that delay or prevent the issuance of the approvals through an injunction and/or prevailing on the legal merits or a ruling that additional approval is required. In addition, these groups may leverage the increased public attention and concern with respect to climate change and other environmental and social impacts in order to encourage government officials to withhold or delay the necessary approvals or require additional approvals. There is no assurance that these groups will not be successful in delaying or preventing us from obtaining or maintaining the required approvals through litigation or other actions.

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In order to commence offshore oil sales pursuant to the OS&T Strategy or the Buoy Strategy, we will require clearances and permitting, including from BOEM.

If we choose to implement the OS&T Strategy or the Buoy Strategy, we may experience delays in obtaining or be unable to obtain required permits, including authorizations necessary to recommence offshore oil sales pursuant to the OS&T Strategy or the Buoy Strategy, which may delay or interrupt our operations and limit our growth and revenue or may impact our ability to service and repay or refinance the New Senior Secured Credit Facilities or the notes. In particular, prior to implementation of the OS&T Strategy or the Buoy Strategy, regulatory authorizations are required, including clearance from BOEM. If we do not receive regulatory clearances in connection with the OS&T Strategy or the Buoy Strategy in a timely manner, we may not be able to reach commercial sales pursuant to the OS&T Strategy or the Buoy Strategy on our estimated timeline.

While the previous operator of the SYU was able to utilize the OS&T Strategy to process SYU production in federal waters from 1981 to 1994 under previously issued permits, there is no assurance that we will be able to successfully obtain the agency clearance or permits required to recommence oil sales pursuant to the OS&T Strategy or that no additional state or federal clearances or permits will be required in the future.

Loss of our key executive officers or other key personnel, or an inability to attract and retain such officers and personnel, could negatively affect our business and, in one instance, could cause a default under the primary agreement governing our existing indebtedness.

Our future success depends on the skills, experience and efforts of our executive officers. The sudden loss of any of these executives’ services or our failure to appropriately plan for any expected executive succession could materially and adversely affect our business and prospects, as we may not be able to find suitable individuals to replace them on a timely basis, if at all. Additionally, we also depend on our ability to attract and retain qualified personnel to operate and expand our business. If we fail to attract or retain talented new employees, our business and results of operations could be negatively affected. Workers may choose to pursue employment with our competitors or in other fields. Additionally, the Senior Revolver requires that James C. Flores, our Chairman and Chief Executive Officer, remains directly and actively involved in the day-to-day management of our business, subject to the right of the administrative agent under the Senior Revolver to approve his replacement, such approval not to be unreasonably withheld.

We will be required to hedge substantially all of our expected production pursuant to the terms of the New Senior Secured Credit Facilities, and such hedging activities may expose us to counterparty risk, limit potential gains from increasing commodity prices, and expose us to cash losses.

The New Senior Secured Credit Facilities require us to (x) hedge within five business days of the closing of the New Senior Secured Credit Facilities, 100% of reasonably anticipated production of crude oil from proved, developed and producing oil and gas properties for each calendar month through December 15, 2028 and (y) on a go forward basis, use commercially reasonable efforts to hedge substantially all of the anticipated production of crude oil from proved, developed and producing oil and gas properties through December 15, 2028, which may limit our ability to realize the benefits of higher commodity prices. For a description of our outstanding indebtedness, see “Description of Other Indebtedness—New Senior Secured Credit Facilities.”

The prices and quantities at which we enter into commodity derivative contracts covering our production in the future will be dependent upon oil and natural gas prices and price expectations at the time we enter into these transactions, which may be substantially higher or lower than current or future oil and natural gas prices. Accordingly, our commodity hedging strategy may not protect us from significant declines in prices received for our future production. In addition, our commodity derivative contracts expose us to risk of financial loss if a counterparty fails to perform under a commodity derivative contract. We are unable to predict sudden changes in a counterparty’s creditworthiness or ability to perform. Even if we do accurately predict sudden changes, our ability to negate the risk may be limited depending upon market conditions.

Many of the derivative contracts to which we will be a party will require us to make cash payments to the extent the applicable index exceeds a predetermined price, thereby limiting our ability to realize the benefit of increases in prices. If our actual production and sales for any period are less than our hedged production and sales for that period

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(including reductions in production due to operational delays or cessation of production due to regulatory or legal rulings or challenges or otherwise) or if we are unable to perform our drilling activities as planned, we might be forced to satisfy all or a portion of our hedging obligations without the benefit of the cash flow from our sale of the underlying physical commodity, which may materially impact our liquidity and financial condition.

Risks Associated with the Notes and our Indebtedness

The notes will be effectively subordinated to our existing and future secured indebtedness and structurally subordinated to the liabilities of our subsidiaries.

The notes will be our senior, unsecured obligations and will rank equal in right of payment with our existing and future senior, unsecured indebtedness, senior in right of payment to our existing and future indebtedness that is expressly subordinated to the notes and effectively subordinated to our existing and future secured indebtedness, to the extent of the value of the collateral securing that indebtedness. In addition, because none of our subsidiaries will guarantee the notes, the notes will be structurally subordinated to all existing and future indebtedness and other liabilities, including trade payables, and (to the extent we are not a holder thereof) preferred equity, if any, of our subsidiaries. As of March 31, 2026, on an as adjusted basis after giving effect to the Transactions, we would have had (i) $975.0 million principal amount of outstanding indebtedness (or, if the underwriters fully exercise their option to purchase additional notes, $1.02 billion), including $675.0 million principal amount of secured indebtedness under the Term Loan B which would rank effectively senior to the notes to the extent of the value of the collateral securing such indebtedness. In addition, upon consummation of the Transactions, the Senior Revolver will permit secured indebtedness for secured hedging arrangements, which would rank effectively senior to the notes to the extent of the value of the collateral securing such indebtedness. Upon establishment of a borrowing base, any borrowings under the Senior Revolver would also rank effectively senior to the notes to the extent of the value of the collateral securing such indebtedness. The indenture governing the notes will not prohibit us or our subsidiaries from incurring additional indebtedness, including senior or secured indebtedness, in the future.

If a bankruptcy, liquidation, dissolution, reorganization or similar proceeding occurs with respect to us, then the holders of any of our secured indebtedness may proceed directly against the assets securing that indebtedness. Accordingly, those assets will not be available to satisfy any outstanding amounts under our unsecured indebtedness, including the notes, unless the secured indebtedness is first paid in full. The remaining assets, if any, would then be allocated pro rata among the holders of our senior, unsecured indebtedness, including the notes. There may be insufficient assets to pay all amounts then due.

If a bankruptcy, liquidation, dissolution, reorganization or similar proceeding occurs with respect to any of our subsidiaries, then we, as a direct or indirect common equity owner of that subsidiary (and, accordingly, holders of our indebtedness, including the notes), will be subject to the prior claims of that subsidiary’s creditors, including trade creditors and preferred equity holders. We may never receive any amounts from that subsidiary to satisfy amounts due under the notes.

Our indebtedness and liabilities could limit the cash flow available for our operations, expose us to risks that could adversely affect our business, financial condition and results of operations and impair our ability to satisfy our obligations under the notes.

As of March 31, 2026, on an as adjusted basis after giving effect to the Transactions, we would have had (i) $975.0 million principal amount of outstanding indebtedness (or, if the underwriters fully exercise their option to purchase additional notes, $1.02 billion), including $675.0 million principal amount of secured indebtedness under the Term Loan B which would rank effectively senior to the notes to the extent of the value of the collateral securing such indebtedness. In addition, upon consummation of the Transactions, the Senior Revolver will permit secured indebtedness for secured hedging arrangements, which would rank effectively senior to the notes to the extent of the value of the collateral securing such indebtedness. Upon establishment of a borrowing base, any borrowings under the Senior Revolver would also rank effectively senior to the notes to the extent of the value of the collateral securing such indebtedness. We may also incur additional indebtedness to meet future financing needs. Our indebtedness could have significant negative consequences for our security holders and our business, results of operations and financial condition by, among other things:

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•increasing our vulnerability to adverse economic and industry conditions;

•limiting our ability to obtain additional financing (which may include indebtedness that would be used for future capital expenditures, including with respect to the OS&T Strategy and the Buoy Strategy);

•requiring the dedication of a substantial portion of our cash flow from operations to service our indebtedness, which will reduce the amount of cash available for other purposes;

•limiting our flexibility to plan for, or react to, changes in our business;

•diluting the interests of our existing stockholders as a result of issuing shares of our common stock upon conversion of the notes; and

•placing us at a possible competitive disadvantage with competitors that are less leveraged than us or have better access to capital.

Our business may not generate sufficient funds, and we may otherwise be unable to maintain sufficient cash reserves, to pay amounts due under our indebtedness, including the notes, and our cash needs may increase in the future.

Restrictive covenants in the New Senior Secured Credit Facilities or any future agreements governing our indebtedness could limit our growth and our ability to finance our operations, fund our capital needs, respond to changing conditions and engage in other business activities that may be in our best interests.

Restrictive covenants in the New Senior Secured Facilities impose significant operating and financial restrictions on us and our subsidiaries and we may be prevented from taking advantage of business opportunities that arise because of the limitations imposed on us by the New Senior Secured Credit Facilities unless we obtain amendments or waivers from the applicable lenders.

These restrictions limit our ability to, subject to certain exceptions, among other things:

•engage in mergers, consolidations, liquidations, or dissolutions;

•create or incur debt or liens;

•make certain debt prepayments (including in respect of the Notes);

•pay dividends, distributions or certain other restricted payments;

•make investments, capital expenditures, general and administrative expenditures, acquisitions or loans;

•operate in certain geographical boundaries;

•sell, assign, farm-out or dispose of any property;

•enter into transactions with affiliates;

•enter into, subject to certain exceptions, any agreement that prohibits or restricts liens securing the New Senior Secured Credit Facilities, payments of dividends to us, or payment of debt owed to us and our subsidiaries; and

•create new subsidiaries or change the nature of our business.

The New Senior Secured Credit Facilities also contain representations and warranties, affirmative covenants, additional negative covenants and events of default (including a change of control), including in the case of the Term Loan B, amortization and repayments of principal with excess cash flow, subject to a minimum liquidity amount. The New Senior Secured Credit Facilities also require us to (x) hedge within five business days of the closing of the New Senior Secured Credit Facilities, 100% of reasonably anticipated production of crude oil from proved, developed and producing oil and gas properties for each calendar month through December 15, 2028 and (y)

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on a go forward basis, use commercially reasonable efforts to hedge substantially all of the anticipated production of crude oil from proved, developed and producing oil and gas properties through December 15, 2028, which may limit our ability to realize the benefits of higher commodity prices. For a description of our outstanding indebtedness, see “Description of Other Indebtedness.”

We may be unable to raise the funds necessary to repurchase the notes for cash following a fundamental change or on the optional repurchase date or to pay any cash amounts due upon maturity or conversion of the notes, and our other indebtedness limits our ability to repurchase the notes or to pay any cash amounts due upon their maturity or conversion.

Noteholders may require us to repurchase their notes following a fundamental change or on July 6, 2029 at a cash repurchase price generally equal to the principal amount of the notes to be repurchased, plus accrued and unpaid interest, if any. See “Description of Notes—Fundamental Change Permits Noteholders to Require Us to Repurchase Notes” and “—Purchase of Notes by Us at the Option of the Noteholders.” Upon maturity of the notes, we must pay their principal amount and accrued and unpaid interest in cash, unless they have been previously repurchased, redeemed or converted. In addition, upon conversion, we will satisfy part or all of our conversion obligation in cash unless we elect to settle conversions solely in shares of our common stock. We may not have enough available cash or be able to obtain financing at the time we are required to repurchase the notes or pay any cash amounts due upon their maturity or conversion. In addition, applicable law, regulatory authorities and the agreements governing our other indebtedness may restrict our ability to repurchase the notes or to pay any cash amounts due upon their maturity or conversion. For example, our New Senior Secured Credit Facilities will include restrictive covenants limiting our ability to make certain debt prepayments and certain other restricted payments. Our failure to repurchase notes or to pay any cash amounts due upon their maturity or conversion when required will constitute a default under the indenture. A default under the indenture or the fundamental change itself could also lead to a default under agreements governing our other indebtedness, which may result in that other indebtedness becoming immediately payable in full. We may not have sufficient funds to satisfy all amounts due under the other indebtedness and the notes.

Not all events that may adversely affect the trading price of the notes and our common stock will result in an adjustment to the conversion rate.

We will adjust the conversion rate of the notes for certain events, including:

•certain stock dividends, splits and combinations;

•the issuance of certain rights, options or warrants to holders of our common stock;

•certain distributions of assets, debt securities, capital stock or other property to holders of our common stock;

•cash dividends on our common stock; and

•certain tender or exchange offers.

See “Description of Notes—Conversion Rights—Conversion Rate Adjustments.” We are not required to adjust the conversion rate for other events, such as third-party tender offers or an issuance of our common stock (or securities convertible into, or exercisable or exchangeable for, our common stock) for cash, that may adversely affect the trading price of the notes and our common stock. An event may occur that adversely affects the noteholders and the trading price of the notes and the underlying shares of our common stock but that does not result in an adjustment to the conversion rate.

Not all significant restructuring transactions will constitute a fundamental change, in which case you will not have the right to require us to repurchase your notes for cash.

If certain corporate events called “fundamental changes” occur, then, subject to a limited exception described in this prospectus supplement, you will have the right to require us to repurchase your notes for cash. See “Description of Notes—Fundamental Change Permits Noteholders to Require Us to Repurchase Notes.” However, the definition of

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“fundamental change” is limited to specific corporate events and does not include all events that may adversely affect our financial condition or the trading price of the notes. For example, a leveraged recapitalization, refinancing, restructuring or acquisition by us may not constitute a fundamental change that would require us to repurchase the notes. Nonetheless, these events could significantly increase the amount of our indebtedness, harm our credit rating or adversely affect our capital structure and the trading price of the notes.

The increase to the conversion rate resulting from a make-whole fundamental change may not adequately compensate noteholders for the lost option value of their notes. In addition, a variety of transactions that do not constitute a make-whole fundamental change may significantly reduce the option value of the notes without a corresponding increase to the conversion rate.

If certain corporate events that constitute a “make-whole fundamental change” occur, then we will, in certain circumstances, temporarily increase the conversion rate. See “Description of Notes—Conversion Rights—Increase in Conversion Rate in Connection with a Make-Whole Fundamental Change.” The amount of the increase to the conversion rate will depend on the date on which the make-whole fundamental change becomes effective and the applicable “stock price.” While the increase to the conversion rate is designed to compensate noteholders for the lost option value of their notes resulting from a make-whole fundamental change, the increase is only an approximation and may not adequately compensate noteholders for the loss in option value. In addition, if the applicable “stock price” is greater than $ per share or less than $ per share (in each case, subject to adjustment), then we will not increase the conversion rate for the make-whole fundamental change. Moreover, we will not increase the conversion rate pursuant to these provisions to an amount that exceeds shares of our common stock per $1,000 principal amount of notes, subject to adjustment.

Furthermore, the definition of make-whole fundamental change is limited to certain specific transactions. Accordingly, the make-whole fundamental change provisions of the indenture will not protect noteholders from other transactions that could significantly reduce the option value of the notes. For example, a spin-off or sale of a subsidiary or business division with volatile earnings, or a change in our line of business, could significantly affect the trading characteristics of our common stock and reduce the option value of the notes without constituting a make-whole fundamental change that results in a temporary increase to the conversion rate.

In addition, our obligation to increase the conversion rate in connection with a make-whole fundamental change could be considered a penalty, in which case its enforceability would be subject to general principles of reasonableness and equitable remedies.

There is currently no trading market for the notes. If an active trading market for the notes does not develop, then noteholders may be unable to sell their notes at desired times or prices, or at all.

The notes are a new class of securities for which no market currently exists. We do not intend to apply to list the notes on any securities exchange or for quotation on any inter-dealer quotation system. Although certain of the underwriters have advised us that they intend to make a market in the notes, they are not obligated to do so and may discontinue any market-making activity at any time and without notice. Accordingly, an active market for the notes may never develop, and, even if one develops, it may not be maintained. If an active trading market for the notes does not develop or is not maintained, then the market price and liquidity of the notes will be adversely affected and noteholders may not be able to sell their notes at desired times or prices, or at all.

The liquidity of the trading market, if any, and future trading prices of the notes will depend on many factors, including, among other things, the trading price and volatility of our common stock, prevailing interest rates, our dividend yield, financial condition, results of operations, business, prospects and credit quality relative to our competitors, the market for similar securities and the overall securities market. Many of these factors are beyond our control. Historically, the market for convertible debt has been volatile. Market volatility could significantly harm the market for the notes, regardless of our financial condition, results of operations, business, prospects or credit quality.

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The trading price of our common stock, the condition of the financial markets, prevailing interest rates and other factors could significantly affect the trading price of the notes.

We expect that the trading price of our common stock will significantly affect the trading price of the notes, which could result in greater volatility in the trading price of the notes than would be expected for non-convertible securities. The trading price of our common stock will likely continue to fluctuate in response to the factors described or referred to elsewhere in this section and under the caption “Cautionary Note Regarding Forward-Looking Statements,” among others, many of which are beyond our control.

In addition, the condition of the financial markets and changes in prevailing interest rates can have an adverse effect on the trading price of the notes. For example, prevailing interest rates have fluctuated in the past and are likely to fluctuate in the future, and we would expect an increase in prevailing interest rates to depress the trading price of the notes. An increase in short- or long-term interest rates, including as a result of a rise in actual or expected inflation, could cause the trading price of the notes to fall significantly.

The issuance or sale of shares of our common stock, or rights to acquire shares of our common stock, could depress the trading price of our common stock and the notes.

We may conduct future offerings of common stock, preferred stock or other securities that are convertible into, or exercisable or exchangeable for, our common stock to finance our operations or fund acquisitions, or for other purposes. In addition, we have reserved 10,614,795 shares of common stock for issuance pursuant to our 2023 Incentive Award Plan and 7,568,870 shares of common stock underlying our warrants. The indenture for the notes will not restrict our ability to issue additional equity securities in the future. If we issue additional shares of our common stock or rights to acquire shares of our common stock, if any of our existing stockholders sells a substantial amount of our common stock, or if the market perceives that such issuances or sales may occur, then the trading price of our common stock and, accordingly, the notes may significantly decline. In addition, our issuance of additional shares of common stock will dilute the ownership interests of our existing common stockholders, including noteholders who have received shares of our common stock upon conversion of their notes.

We will make only very limited covenants in the indenture, and these limited covenants may not protect your investment.

Many debt instruments contain provisions that restrict the borrower’s activities and operations in a manner that is designed to preserve the borrower’s ability to make payments on the related indebtedness when due. These provisions include financial and operating covenants, and restrictions on the payments of dividends, the incurrence of indebtedness or the issuance or repurchase of securities by the borrower or any of its subsidiaries. The indenture for the notes will not contain any of these covenants or restrictions or otherwise place any meaningful restrictions on our ability to operate our business as management deems appropriate. As a result, your investment in the notes may not be as protected as an investment in an instrument that contains some or all of these types of covenants and restrictions.

Regulatory actions, changes in market conditions and other events may adversely affect the trading price and liquidity of the notes and the ability of investors to implement a convertible note arbitrage trading strategy.

We expect that many investors in the notes, including potential purchasers of the notes from investors in this offering, will seek to employ a convertible note arbitrage strategy. Under this strategy, investors typically short sell a certain number of shares of our common stock and adjust their short position over time while they continue to hold the notes. Investors may also implement this type of strategy by entering into swaps on our common stock in lieu of, or in addition to, short selling shares of our common stock.

The SEC and other regulatory authorities have implemented various rules and taken certain actions, and may in the future adopt additional rules and take other actions, that may impact those engaging in short selling activity involving equity securities (including our common stock). These rules and actions include Rule 201 of SEC Regulation SHO, the adoption by the Financial Industry Regulatory Authority, Inc., and the national securities exchanges of a “limit up-limit down” program, the imposition of market-wide circuit breakers that halt trading of securities for certain periods following specific market declines, and the implementation of certain regulatory

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reforms required by the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010. Any governmental or regulatory action that restricts investors’ ability to effect short sales of our common stock or enter into equity swaps on our common stock could depress the trading price of, and the liquidity of the market for, the notes.

In addition, the liquidity of the market for our common stock and other market conditions could deteriorate, which could reduce, or eliminate entirely, the number of shares available for lending in connection with short sale transactions and the number of counterparties willing to enter into an equity swap on our common stock with a note investor. These and other market events could make implementing a convertible note arbitrage strategy prohibitively expensive or infeasible. If investors in this offering or potential purchasers of the notes that seek to employ a convertible note arbitrage strategy are unable to do so on commercial terms, or at all, then the trading price of, and the liquidity of the market for, the notes may significantly decline.

You may be subject to tax if we adjust, or fail to adjust, the conversion rate of the notes, even though you will not receive a corresponding cash distribution.

We will adjust the conversion rate of the notes in certain circumstances, including the payment of cash dividends. Adjustments (or failures to make adjustments) that have the effect of increasing your proportionate interest in our assets or earnings and profits may in some circumstances result in a deemed distribution, for U.S. federal income tax purposes, to you even though no cash or property is received. Adjustments to the conversion rate made pursuant to a bona fide, reasonable adjustment formula that has the effect of preventing the dilution of the interest of the holders of the notes, however, will generally not be considered to result in a deemed distribution to you. In addition, if we do not adjust (or adjust adequately) the conversion rate after an event that increases your proportionate interest in us, then you could be treated as having received a deemed taxable dividend. For example, if we adjust the conversion rate as a result of a dividend that is taxable to holders of our common stock, such as a cash dividend, then you may be deemed, for U.S. federal income tax purposes, to have received a taxable dividend to the extent of our earnings and profits, without the receipt of any cash or property. If a make-whole fundamental change occurs prior to the maturity date, under some circumstances, we will increase the conversion rate for notes converted in connection with that make-whole fundamental change. Such increase may also be treated as a distribution subject to U.S. federal income tax as a dividend.

If you are subject to backup withholding, or if you are a non-U.S. holder (as defined in “Material U.S. Federal Income Tax Considerations”) subject to U.S. federal withholding tax, such withholding may be withheld from or set off against subsequent payments on the notes or our common stock owned by you or from any proceeds of any subsequent sale, exchange or other disposition of such notes (including the retirement of such notes) or such common stock or other funds or assets held by you. The Internal Revenue Service has issued proposed regulations addressing the amount and timing of deemed distributions, obligations of withholding agents and filing and notice obligations of issuers, which, if adopted, could affect the U.S. federal income tax treatment of a holder of notes deemed to receive such a distribution. See “Description of Notes—Conversion Rights—Conversion Rate Adjustments” and “Material U.S. Federal Income Tax Considerations.”

Non-U.S. holders may be subject to U.S. federal income tax because we are considered a United States real property holding corporation.

Because we believe we are considered a “United States real property holding corporation” (a “USRPHC”) within the meaning of the Foreign Investment in Real Property Tax Act of 1980 and Section 897 (“FIRPTA”) of the Internal Revenue Code of 1986, as amended (the “Code”), a non-U.S. holder (as defined in “Material U.S. Federal Income Tax Considerations”) of the notes or our common stock will be subject to U.S. federal income tax in respect of payments in connection with a sale, exchange, redemption or other taxable disposition of notes or common stock and may be subject to U.S. withholding tax in respect of payments in connection with a sale, exchange, redemption or other taxable disposition of the notes, in each case, if such non-U.S. holder exceeds certain ownership levels. In addition, a non-U.S. holder that exceeds such ownership levels may be subject to special rules under FIRPTA (including certain procedural requirements) upon a conversion of the notes. Non-U.S. holders are urged to consult their tax advisors with respect to the U.S. federal income tax consequences of acquiring, owning, converting and disposing of the notes or our common stock. See the discussion under the heading “Material U.S. Federal Income Tax Considerations—Consequences to Non-U.S. Holders.”

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A rating agency may not rate the notes or may assign a rating that is lower than expected.

We do not intend to seek to have the notes rated by any rating agency. However, if one or more rating agencies rate the notes and assign a rating that is lower than the rating that investors expect, or reduce their rating in the future, then the trading price of our common stock and the notes could significantly decline.

In addition, market perceptions of our creditworthiness will directly affect the trading price of the notes. Accordingly, if a ratings agency rates any of our indebtedness in the future or downgrades or withdraws the rating, or puts us on credit watch, then the trading price of the notes will likely decline.

Provisions in the indenture could delay or prevent an otherwise beneficial takeover of us.

Certain provisions in the notes and the indenture could make a third-party attempt to acquire us more difficult or expensive. For example, if a takeover constitutes a fundamental change, then, except as described in this prospectus supplement, noteholders will have the right to require us to repurchase their notes for cash. In addition, if a takeover constitutes a make-whole fundamental change, then we may be required to temporarily increase the conversion rate. In either case, and in other cases, our obligations under the notes and the indenture could increase the cost of acquiring us or otherwise discourage a third party from acquiring us, including in a transaction that noteholders or holders of our common stock may view as favorable.

You may be unable to convert your notes before April 1, 2031, and the trading price of the notes could be less than the value of the consideration into which they could otherwise be converted.

Before April 1, 2031, you may convert your notes only if specific conditions are met. If these conditions are not met, then you will not be able to convert your notes and receive the cash, shares of our common stock or combination of cash and shares, as applicable, into which the notes would otherwise be convertible. As a result, the notes may trade at prices that are less than the value of the consideration into which they would otherwise be convertible.

Fluctuations in the trading price of our common stock after you elect to convert your notes may cause you to receive less valuable consideration than expected.

We will generally have the right to settle conversions in cash, shares of our common stock or a combination of cash and shares. If we elect to settle conversions solely in cash or in a combination of cash and shares, then the consideration due upon conversion will be determined based on the volume-weighted average price of our common stock during the related “observation period,” which is defined under the caption “Description of Notes—Definitions” and will consist of 40 “VWAP trading days.” Except in certain circumstances, the observation period will begin after the related conversion date. Accordingly, a considerable amount of time may lapse between the time you elect to convert your notes and the time you receive the consideration due upon conversion, and if the trading price of our common stock declines during this time, then you may receive less consideration, or consideration that is less valuable, than expected.

Your investment in the notes may be harmed if we redeem the notes.

We will have the right to redeem the notes, in whole or in part, in certain circumstances on or after July 6, 2029 and on or before the 40th scheduled trading day immediately before the maturity date. See “Description of Notes—Optional Redemption.” If we redeem your notes, then you may not be entitled to benefit from potential future appreciation in the trading price of our common stock, and you may be unable to reinvest any proceeds from the redemption in comparable investments at favorable interest rates. In addition, a redemption of less than all of the outstanding notes will likely harm the liquidity of the market for the unredeemed notes following the redemption. Accordingly, if your notes are not redeemed in a partial redemption, then you may be unable to sell your notes at the times you desire or at favorable prices, if at all, and the trading price of your notes may decline.

Our management may spend the proceeds of this offering in ways with which you may disagree or that may not be profitable.

Although we have described in this prospectus supplement, under the caption “Use of Proceeds,” how we currently intend to use the proceeds to us from this offering, our management will have broad discretion to apply the net

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proceeds, and investors will rely on our judgment in spending the net proceeds. Our management may use the proceeds in ways that do not earn a profit or otherwise result in the creation of stockholder value.

The accounting method for the notes could adversely affect our reported financial condition and results.

The accounting method for reflecting the notes on our balance sheet, accruing interest expense for the notes and reflecting the underlying shares of our common stock in our reported diluted earnings per share may adversely affect our reported earnings and financial condition.

In accordance with applicable accounting standards, we expect that the notes we are offering will be reflected as a liability on our balance sheets, with the initial carrying amount equal to the principal amount of the notes, net of issuance costs. The issuance costs will be treated as a debt discount for accounting purposes, which will be amortized into interest expense over the term of the notes. As a result of this amortization, the interest expense that we expect to recognize for the notes for accounting purposes will be greater than the cash interest payments we will pay on the notes, which will result in lower reported income.

In addition, we expect that the shares underlying the notes will be reflected in our diluted earnings per share using the “if converted” method. Under that method, diluted earnings per share would generally be calculated assuming that all the notes were converted solely into shares of our common stock at the beginning of the reporting period, unless the result would be anti-dilutive. The application of the if-converted method may reduce our reported diluted earnings per share, and accounting standards may change in the future in a manner that may adversely affect our diluted earnings per share.

Furthermore, if any of the conditions to the convertibility of the notes is satisfied, then we may be required under applicable accounting standards to reclassify the liability carrying value of the notes as a current, rather than a long-term, liability. This reclassification could be required even if no noteholders convert their notes and could materially reduce our reported working capital.

We have not reached a final determination regarding the accounting treatment for the notes, and the description above is preliminary. Accordingly, we may account for the notes in a manner that is significantly different than described above.

Because the notes will initially be held in book-entry form, noteholders must rely on DTC’s procedures to exercise their rights and remedies.

We will initially issue the notes in the form of one or more “global notes” registered in the name of Cede & Co., as nominee of DTC. Beneficial interests in global notes will be shown on, and transfers of global notes will be effected only through, the records maintained by DTC. Except in limited circumstances, we will not issue certificated notes. See “Description of Notes—Book Entry, Settlement and Clearance.” Accordingly, if you own a beneficial interest in a global note, then you will not be considered an owner or holder of the notes. Instead, DTC or its nominee will be the sole holder of the notes. Payments of principal, interest and other amounts on global notes will be made to the paying agent, who will remit the payments to DTC. We expect that DTC will then credit those payments to the DTC participant accounts that hold book-entry interests in the global notes and that those participants will credit the payments to indirect DTC participants. Unlike persons who have certificated notes registered in their names, owners of beneficial interests in global notes will not have the direct right to act on our solicitations for consents or requests for waivers or other actions from noteholders. Instead, those beneficial owners will be permitted to act only to the extent that they have received appropriate proxies to do so from DTC or, if applicable, a DTC participant. The applicable procedures for the granting of these proxies may not be sufficient to enable owners of beneficial interests in global notes to vote on any requested actions on a timely basis.

Holding notes will not, in itself, confer any rights with respect to our common stock.

Noteholders will generally not be entitled to any rights with respect to our common stock (including voting rights and rights to receive any dividends or other distributions on our common stock). However, noteholders will be subject to all changes affecting our common stock to the extent the trading price of the notes depends on the market price of our common stock and to the extent they receive shares of our common stock upon conversion of their

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notes. For example, if we propose an amendment to our charter documents that requires stockholder approval, then a noteholder will not, as such, be entitled to vote on the amendment, although the noteholder will be subject to any changes implemented by that amendment in the powers, preferences or special rights of our common stock.

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USE OF PROCEEDS

We estimate that the net proceeds to us from this offering will be approximately $ million (or approximately $ million if the underwriters fully exercise their option to purchase additional notes), after deducting the underwriters’ discounts and commissions and our estimated offering expenses. We intend to use the net proceeds from this offering, together with borrowings under Term Loan B and the net proceeds from the Concurrent Common Stock Offering, to repay the Existing Senior Secured Term Loan, to pay fees and expenses in connection with the Transactions and for general corporate purposes.

If the underwriters exercise their option to purchase additional notes, then we intend to use a portion of the additional net proceeds for general corporate purposes.

The Existing Senior Secured Term Loan bears interest at 15.0% per annum and matures on July 24, 2026. As of May 31, 2026, the outstanding principal amount of the Existing Senior Secured Term Loan, including paid-in-kind interest, was approximately $979.5 million.

The table below illustrates the sources and uses of the net proceeds from the New Senior Secured Credit Facilities, the offering of the notes, and the Concurrent Common Stock Offering.


Sources	in millions		Uses	in millions
Term Loan B	$	675.0	Repayment of Existing Senior Secured Term Loan	$	991.8
Concurrent Common Stock Offering	300.0		Excess cash to balance sheet
New proceeds from this offering	100.0		Estimated costs, fees, and expenses
Total Sources	$	1,075.0	Total Uses	$	1,075.0

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CAPITALIZATION

The following table presents our cash and cash equivalents and our capitalization as of March 31, 2026:

•on an actual basis; and

•on an as adjusted basis to give effect to the Transactions (assuming no exercise of the underwriters’ option to purchase additional notes or additional shares of common stock in the Concurrent Common Stock Offering).

This table should be read in conjunction with the other information included or incorporated by reference in this prospectus supplement, including our consolidated financial statements and related notes.


	As of March 31, 2026
	Actual		As adjusted
	(In thousands, except share and per share data)
Cash and cash equivalents	$	52,168	$
Debt:
Existing Senior Secured Term Loan(1)	956,252		—
Term Loan B	—		675,000
Senior Revolver(2)	—		—
Principal amount of the Notes(3)	—		300,000
Total debt	956,252		975,000
Stockholders’ equity:
Preferred stock, $0.0001 par value per share; 1,000,000 shares authorized; no shares outstanding, actual and as adjusted	—
Common stock, $0.0001 par value per share; 500,000,000 shares authorized; 150,321,586 shares outstanding, actual and shares outstanding, as adjusted(4)	16
Additional paid in capital	1,727,331
Accumulated deficit	(1,305,484)
Total stockholders’ equity	421,863
Total capitalization	$	1,378,115	$

__________________

(1)Reflects principal amount outstanding, without deduction for debt discounts or issuance costs.

(2)The Senior Revolver will have a $0 borrowing base as of the closing date of this offering and, accordingly, will not have capacity for revolving borrowings until such time as a borrowing base is established.

(3)The amounts shown in the table above for the notes we are offering represent their principal amount. However, we expect that the initial liability carrying amount of the notes for accounting purposes will be recorded net of issuance costs, which will be treated as a debt discount for accounting purposes and amortized into interest expense over the term of the notes. As a result of this amortization, the interest expense that we expect to recognize for the notes for accounting purposes will be greater than the cash interest payments we will pay on the notes, which will result in lower reported net income or larger reported net loss.

(4)The number of shares of our common stock outstanding as of March 31, 2026 included in the above excludes the following, in each case as of such date:

•10,642,395 shares of common stock issuable under our 2023 Incentive Plan;

•7,568,870 shares of common stock issuable upon the exercise of warrants; and

•The shares of common stock issuable upon the conversion of the notes offered hereby.

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DIVIDEND POLICY

The Company has not paid any cash dividends on its common stock to date. The payment of cash dividends in the future will be dependent upon the Company’s revenues and earnings, if any, capital requirements and general financial condition, as well as the applicable provisions of our Charter (as defined below), our Bylaws (as defined below) and applicable law. The payment of any cash dividends will be within the discretion of the Company’s board of directors at such time. The Company’s ability to declare dividends will also be limited by restrictive covenants pursuant to any debt financing agreements, including the New Senior Secured Credit Facilities.

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DESCRIPTION OF NOTES

We will issue the notes under an indenture (the “base indenture”), to be dated as of the initial closing date of this offering, between us and U.S. Bank Trust Company, National Association, as trustee (the “trustee”), as supplemented by a supplemental indenture (the base indenture, as so supplemented, the “indenture”), to be dated as of the initial closing date of this offering, between us and the trustee.

The following is a summary of certain provisions of the notes and the indenture. It is only a summary and is not complete. We qualify this summary by referring you to the indenture and the notes, because they, and not this summary, define your rights as a holder of the notes. We will provide you with a copy of the indenture, which includes the form of the notes, as provided under the caption “Where You Can Find Additional Information.” In addition, the indenture and the notes will be deemed to include certain terms that are made a part of the indenture and the notes pursuant to the Trust Indenture Act of 1939, as amended (the “Trust Indenture Act”).

This “Description of Notes” section supplements and, to the extent inconsistent therewith, supersedes the information in the accompanying prospectus under the caption “Description of Debt Securities.”

Certain terms used in this summary are defined below under the caption “—Definitions.” Certain other terms used in this summary are defined in the indenture.

In this section, references to (i) “we,” “us” and “our” refer to Sable Offshore Corp. only and not to any of its subsidiaries; and (ii) any “note” refer to any authorized denomination of a note, unless the context requires otherwise.

Generally

The notes will:

•be our senior, unsecured obligations;

•initially be limited to an aggregate principal amount of $300,000,000 (or $345,000,000, if the underwriters fully exercise their option to purchase additional notes);

•bear interest from, and including, , 2026, at an annual rate of %, payable semi-annually in arrears on January 1 and July 1 of each year, beginning on January 1, 2027;

•bear special interest in the circumstances described below under the caption “—Events of Default—Special Interest as Sole Remedy for Certain Reporting Defaults”;

•mature on July 1, 2031, unless earlier repurchased, redeemed or converted;

•be redeemable, in whole or in part (subject to certain limitations), at our option, at any time, and from time to time, on or after July 6, 2029 and on or before the 40th “scheduled trading day” (as defined below under the caption “—Definitions”) immediately before the maturity date, at a cash redemption price equal to the principal amount of the notes to be redeemed, plus accrued and unpaid interest to, but excluding, the redemption date (subject to the right of noteholders on a regular record date to receive the related interest payment), but only if certain conditions are satisfied, as described below under the caption “—Optional Redemption”;

•be subject to repurchase by us at the noteholders’ option if a “fundamental change” (as defined below under the caption “—Definitions”) occurs, at a cash repurchase price equal to the principal amount of the notes to be repurchased, plus accrued and unpaid interest to, but excluding, the fundamental change repurchase date (subject to the right of noteholders on a regular record date to receive the related interest payment), as described, and subject to the limited exception set forth, below under the caption “—Fundamental Change Permits Noteholders to Require Us to Repurchase Notes”;

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•be subject to repurchase by us at the noteholders’ option on July 6, 2029, at a cash repurchase price equal to the principal amount of the notes to be repurchased, plus accrued and unpaid interest to, but excluding, the repurchase date (subject to the right of noteholders on a regular record date to receive the related interest payment), as described below under the caption “—Purchase of Notes by Us at the Option of the Noteholders”;

•be convertible, at the noteholders’ option, into cash, shares of our common stock or a combination of cash and shares of our common stock (together with cash in lieu of any fractional share, if applicable), at our election, based on an initial conversion rate of shares per $1,000 principal amount of notes (which represents an initial conversion price of approximately $ per share), under the conditions, and subject to the adjustments, described below under the caption “—Conversion Rights”;

•be issued in principal amount denominations of $1,000 or any integral multiple of $1,000 in excess thereof, which we refer to as an “authorized denomination”; and

•initially be represented by one or more registered notes in global form, but may, in certain circumstances, be exchanged for notes in definitive form, as described below under the caption “—Book Entry, Settlement and Clearance.”

The indenture will not contain any financial covenants and will not limit us or our subsidiaries from incurring additional indebtedness, paying dividends or issuing or repurchasing any securities. Except to the extent described below under the captions “—Conversion Rights—Increase in Conversion Rate in Connection with a Make-Whole Fundamental Change,” “—Fundamental Change Permits Noteholders to Require Us to Repurchase Notes” and “—Consolidation, Merger and Asset Sale,” the indenture will not contain any provisions designed to protect noteholders upon a highly leveraged transaction involving us or a decline in our credit rating as a result of a recapitalization, takeover, highly leveraged transaction or other restructuring involving us.

Without the consent of any noteholder, we may issue additional notes under the indenture with the same terms as the notes we are offering (except for certain differences, such as the date as of which interest begins to accrue on, and the first interest payment date for, such additional notes). However, such additional notes (and any notes that have been resold after they have been purchased or otherwise acquired by us or our subsidiaries) must be identified by a separate CUSIP number or by no CUSIP number if they are not fungible with other notes we issue under the indenture for purposes of federal income tax or federal securities laws or, if applicable, the “depositary procedures” (as defined below under the caption “—Definitions”).

We do not intend to list the notes on any securities exchange or include them in any automated inter-dealer quotation system.

Absent manifest error, a person in whose name a note is registered on the registrar’s books will be considered to be the holder of that note for all purposes, and only registered noteholders (which, in the case of notes held through DTC, will initially be DTC’s nominee, Cede & Co.) will have rights under the indenture as noteholders.

Subject to applicable law, we or our subsidiaries may directly or indirectly repurchase notes in the open market or otherwise, whether through private or public tender or exchange offers, cash-settled swaps or other cash-settled derivatives. Any notes that we or our subsidiaries have purchased or otherwise acquired will be deemed to remain outstanding until such time as we deliver them to the trustee for cancellation. However, subject to the terms of the indenture, notes that we or any of our affiliates own will be deemed not to be outstanding for purposes of determining whether the noteholders have concurred in any direction, waiver or consent.

Payments on the Notes

We will pay (or cause the paying agent to pay) the principal of, and interest on, any global note by wire transfer of immediately available funds. We will pay (or cause the paying agent to pay) the principal of, and interest on, any physical note as follows:

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•if the principal amount of such note is at least $5.0 million (or such lower amount as we may choose in our sole and absolute discretion) and the holder of such note entitled to such payment has delivered to the paying agent or the trustee, no later than the time set forth below, a written request to receive payment by wire transfer to an account of such holder within the United States, by wire transfer of immediately available funds to such account; and

•in all other cases, by check mailed to the address of such holder set forth in the note register.

To be timely, a written request referred to in the first bullet point above must be delivered no later than the “close of business” (as defined below under the caption “—Definitions”) on the following date: (i) with respect to the payment of any interest due on an interest payment date, the immediately preceding regular record date; and (ii) with respect to any other payment, the date that is 15 calendar days immediately before the date such payment is due.

If the due date for a payment on a note is not a “business day” (as defined below under the caption “—Definitions”), then such payment may be made on the immediately following business day with the same force and effect as if such payment were made on that due date, and no interest will accrue on such payment as a result of the related delay. Solely for purposes of the immediately preceding sentence, a day on which the applicable place of payment is authorized or required by law or executive order to close or be closed will be deemed not to be a “business day.”

Registrar, Paying Agent and Conversion Agent

We will maintain one or more offices or agencies in the continental United States where notes may be presented for registration of transfer or for exchange, payment and conversion, which we refer to as the “registrar,” “paying agent” and “conversion agent,” respectively. We have appointed the trustee as the initial registrar, paying agent and conversion agent and its office in the United States as a place where notes may be presented for payment. However, without prior notice to the noteholders, we may change the registrar, paying agent and conversion agent and we or any of our subsidiaries may choose to act in that capacity as well (except that the registrar, paying agent or conversion agent with respect to any global note must at all times be a person that is eligible to act in that capacity under the depositary procedures).

Transfers and Exchanges

For purposes of the notes, the description below under this section titled “—Transfers and Exchanges” supersedes, in its entirety, the information in the accompanying prospectus under the caption “Transfer and Exchange.”

A noteholder may transfer or exchange its notes at the office of the registrar in accordance with the indenture. We, the trustee and the registrar may require the noteholder to, among other things, deliver appropriate endorsements or transfer instruments, and such certificates or other documentation or evidence as we or they may reasonably require to determine that such transfer or exchange complies with applicable securities laws. We, the trustee and the registrar may refuse to register the transfer or exchange of any note that is subject to conversion, redemption or required repurchase.

Interest

The notes will bear cash interest at an annual rate of % (which we refer to as the “stated interest”), payable semi-annually in arrears on January 1 and July 1 of each year, beginning on January 1, 2027, to the noteholders of record of the notes as of the close of business on the immediately preceding December 15 and June 15, respectively. Interest will accrue from, and including, the last date to which interest has been paid or duly provided for (or, if no interest has been paid or duly provided for, from, and including, the date the notes are initially issued) to, but excluding, the next interest payment date. Interest will be computed on the basis of a 360-day year comprised of twelve 30-day months.

In addition to the stated interest on the notes referred to above, special interest will accrue on the notes in the circumstances described below under the caption “—Events of Default—Special Interest as Sole Remedy for Certain Reporting Defaults.” All references in this prospectus supplement to interest on the notes include any special

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interest and default interest (as described below under the caption “—Events of Default—Default Interest”) payable on the notes, unless the context requires otherwise.

If the first date on which any special interest begins to accrue on any global note is on or after the fifth business day before a regular record date and before the next interest payment date, then, notwithstanding anything to the contrary, the amount thereof accruing in respect of the period from, and including, such first date to, but excluding, such interest payment date will not be payable on such interest payment date but will instead be deemed to accrue (without duplication) entirely on such interest payment date (and, for the avoidance of doubt, no interest will accrue as a result of the related delay).

Ranking

The notes will be our senior, unsecured obligations and will be:

•equal in right of payment with our existing and future senior, unsecured indebtedness;

•senior in right of payment to our existing and future indebtedness that is expressly subordinated to the notes;

•effectively subordinated to our existing and future secured indebtedness, to the extent of the value of the collateral securing that indebtedness; and

•structurally subordinated to all existing and future indebtedness and other liabilities, including trade payables, and (to the extent we are not a holder thereof) preferred equity, if any, of our subsidiaries.

The indenture will not prohibit us from incurring additional indebtedness, including secured indebtedness, which would be effectively senior to the notes to the extent of the value of the collateral securing that indebtedness, or indebtedness that would rank equal in right of payment with the notes. The indenture will also not prohibit our subsidiaries from incurring any additional indebtedness or other liabilities that would be structurally senior to our obligations under the notes.

In the event of our bankruptcy, liquidation, reorganization or other winding up, our assets that secure any indebtedness will not be available to make payments under the notes unless all of that indebtedness is first paid in full. In the event of the bankruptcy, liquidation, reorganization or other winding up of any of our subsidiaries, we, as a common equity holder of that subsidiary, and, therefore, the noteholders, will rank behind that subsidiary’s creditors, including that subsidiary’s trade creditors, and (to the extent we are not a holder thereof) that subsidiary’s preferred equity holders. Even if we were a creditor of any of our subsidiaries, our rights as a creditor would be effectively subordinated to any security interest of others in the assets of that subsidiary, to the extent of the value of those assets, and would be subordinated to any indebtedness of that subsidiary that is senior in right of payment to that held by us.

Our subsidiaries will have no obligations under the notes. The ability of our subsidiaries to pay dividends or make other payments to us is restricted by, among other things, corporate and other laws and by agreements to which our subsidiaries may become a party. Accordingly, we may be unable to gain access to the cash flow or assets of our subsidiaries to enable us to make payments on the notes.

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See “Risk Factors—The notes will be effectively subordinated to our existing and future secured indebtedness and structurally subordinated to the liabilities of our subsidiaries.”

Optional Redemption

We may not redeem the notes at our option at any time before July 6, 2029. Subject to the terms of the indenture, we have the right, at our election, to redeem all, or any portion in an authorized denomination, of the notes, at any time, and from time to time, on a redemption date on or after July 6, 2029 and on or before the 40th scheduled trading day immediately before the maturity date, for cash, but only if the “last reported sale price” (as defined below under the caption “—Definitions”) per share of our common stock exceeds 175% of the “conversion price” (as defined below under the caption “—Definitions”) on (i) each of at least 20 “trading days” (as defined below under the caption “—Definitions”), whether or not consecutive, during the 30 consecutive trading days ending on, and including, the trading day immediately before the date we send the related redemption notice; and (ii) the trading day immediately before the date we send such notice. However, we will not call less than all of the outstanding notes for redemption unless the excess of the principal amount of notes outstanding as of the time we send the related redemption notice over the aggregate principal amount of notes set forth in such redemption notice as being subject to redemption is at least $100 million. In addition, calling any note for redemption will constitute a “make-whole fundamental change” (as defined below under the caption “—Definitions”) with respect to that note, in which case the conversion rate applicable to the conversion of that note will be increased in certain circumstances if it is converted after it is called for redemption. If we elect to redeem less than all of the outstanding notes, then the redemption will not constitute a make-whole fundamental change with respect to the notes not called for redemption, and holders of the notes not called for redemption will not be entitled to an increased conversion rate for such notes as described above on account of the redemption, except to the limited extent described further below.

The redemption date will be a business day of our choosing that is no more than 65, nor less than 45, scheduled trading days after the date we send the related redemption notice, as described below. However, if, in accordance with the provisions described below under the caption “—Conversion Rights—Settlement Upon Conversion—Settlement Method,” we elect to settle all conversions with a conversion date that occurs on or after the date we send such redemption notice and on or before the second business day immediately before the related redemption date by physical settlement, then we may instead elect to choose a redemption date that is a business day no more than 45, nor less than 15, calendar days after the date we send such redemption notice.

The redemption price for any note called for redemption will be the principal amount of such note plus accrued and unpaid interest on such note to, but excluding, the redemption date. However, if the redemption date is after a regular record date and on or before the next interest payment date, then (i) the holder of such note at the close of business on such regular record date will be entitled, notwithstanding such redemption, to receive, on or, at our election, before such interest payment date, the unpaid interest that would have accrued on such note to, but excluding, such interest payment date; and (ii) the redemption price will not include accrued and unpaid interest on such note to, but excluding, such redemption date.

We will send to each applicable noteholder notice of the redemption containing certain information set forth in the indenture, including the redemption price and the redemption date.

If only a portion of a note is subject to redemption and that note is converted in part, then the converted portion of that note will be deemed to be from the portion of that note that was subject to redemption.

If we elect to redeem less than all of the outstanding notes, and the holder of any note, or any owner of a beneficial interest in any global note, is reasonably not able to determine, before the close of business on the 42nd scheduled trading day (or, if, as described above, we irrevocably elect physical settlement for all conversions with a conversion date that occurs on or after the date we send the related redemption notice and on or before the second business day immediately before the related redemption date, the 10th calendar day) immediately before the relevant redemption date, whether such note or beneficial interest, as applicable, is to be redeemed pursuant to such redemption, then such holder or owner, as applicable, will be entitled to convert such note or beneficial interest, as applicable, at any time before the close of business on the second business day immediately before such redemption date, and each such conversion will be deemed to be of a note called for redemption for purposes of these redemption provisions

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and the provisions described below under the captions “—Conversion Rights—When the Notes May Be Converted—Conversion Upon Redemption” and “—Conversion Rights—Increase in Conversion Rate in Connection with a Make-Whole Fundamental Change.” For the avoidance of doubt, each reference in this prospectus supplement to (i) any note that is called for redemption (or similar language) includes any note that is deemed to be called for redemption pursuant to the provision described in this paragraph; and (ii) any note that is not called for redemption (or similar language) excludes any note that is deemed to be called for redemption pursuant to the provision described in this paragraph.

Notwithstanding anything to the contrary above, we may not redeem any notes if the principal amount of the notes has been accelerated and such acceleration has not been rescinded on or before the redemption date (including as a result of the payment of the related redemption price and any related interest described above on the redemption date).

Conversion Rights

Generally

Noteholders will have the right to convert their notes (or any portion of a note in an authorized denomination), in the circumstances described below, into consideration that consists, at our election, of cash, shares of our common stock or a combination of cash and shares of our common stock (together with cash in lieu of any fractional share, if applicable), based on an initial conversion rate of shares per $1,000 principal amount of notes (which represents an initial conversion price of approximately $ per share).

Noteholders may convert their notes only in the circumstances described below under the caption “—When the Notes May Be Converted.”

Treatment of Interest Upon Conversion

We will not adjust the conversion rate to account for any accrued and unpaid interest on any note being converted, and, except as described below, our delivery of the consideration due in respect of the conversion will be deemed to fully satisfy and discharge our obligation to pay the principal of, and accrued and unpaid interest, if any, on, such note to, but excluding, the “conversion date” (as defined below under the caption “—Conversion Procedures”). As a result, except as described below, any accrued and unpaid interest on a converted note will be deemed to be paid in full rather than cancelled, extinguished or forfeited. In addition, if the consideration due upon conversion consists of both cash and shares of our common stock, then accrued and unpaid interest that is deemed to be paid therewith will be deemed to be paid first out of such cash.

Notwithstanding anything to the contrary above, if the conversion date of a note is after a regular record date and before the next interest payment date, then:

•the holder of such note at the close of business on such regular record date will be entitled, notwithstanding such conversion, to receive, on or, at our election, before such interest payment date, the unpaid interest that would have accrued on such note to, but excluding, such interest payment date; and

•the noteholder surrendering such note for conversion must deliver, at the time it surrenders such note, an amount of cash equal to the amount of such interest.

However, such noteholder need not deliver such cash:

•if we have specified a redemption date that is after such regular record date and on or before the second business day immediately after such interest payment date;

•if such conversion date occurs after the regular record date immediately before the maturity date;

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•if we have specified a “fundamental change repurchase date” (as defined below under the caption “—Fundamental Change Permits Noteholders to Require Us to Repurchase Notes”) that is after such regular record date and on or before the business day immediately after such interest payment date;

•if the “optional repurchase date” (as defined below under the caption “—Purchase of Notes by Us at the Option of the Noteholders”) occurs after such regular record date and on or before the business day immediately after such interest payment date; or

•to the extent of any special interest, overdue interest or interest that has accrued on any overdue interest.

Accordingly, for the avoidance of doubt, all noteholders as of the close of business on the regular record date immediately before the maturity date will receive the full interest payment that would have been due on the maturity date regardless of whether their notes have been converted after such regular record date.

When the Notes May Be Converted

Noteholders may convert their notes only in the circumstances set forth below. However, in no event may notes be converted after the close of business on the second scheduled trading day immediately before the maturity date.

Conversion Upon Satisfaction of Common Stock Sale Price Condition

A noteholder may convert its notes during any calendar quarter (and only during such calendar quarter) commencing after the calendar quarter ending on September 30, 2026, if the last reported sale price per share of our common stock exceeds 130% of the conversion price for each of at least 20 trading days, whether or not consecutive, during the 30 consecutive trading days ending on, and including, the last trading day of the immediately preceding calendar quarter.

Conversion Upon Satisfaction of Note Trading Price Condition

A noteholder may convert its notes during the five consecutive business days immediately after any 10 consecutive trading day period (such 10 consecutive trading day period, the “measurement period”) if the “trading price” (as defined below under the caption “—Definitions”) per $1,000 principal amount of notes, as determined following a request by a noteholder in accordance with the procedures described below, for each trading day of the measurement period was less than 98% of the product of the last reported sale price per share of our common stock on such trading day and the conversion rate on such trading day. We refer to this condition as the “trading price condition.”

The trading price will be determined by the bid solicitation agent as described below and in the definition of “trading price.” The bid solicitation agent (if not us) will have no obligation to determine the trading price of the notes unless we have requested such determination in writing, and we will have no obligation to make such request (or seek bids ourselves) unless a noteholder provides us with reasonable evidence that the trading price per $1,000 principal amount of notes would be less than 98% of the product of the last reported sale price per share of our common stock and the conversion rate. If a noteholder provides such evidence, then we will instruct the bid solicitation agent to (or, if we are acting as the bid solicitation agent, we will) determine the trading price of the notes beginning on the next trading day and on each successive trading day until the trading price per $1,000 principal amount of notes is greater than or equal to 98% of the product of the last reported sale price per share of our common stock on such trading day and the conversion rate on such trading day. If the trading price condition has been met as described above, then we will notify the noteholders of the same. If, on any trading day after the trading price condition has been met as described above, the trading price per $1,000 principal amount of notes is greater than or equal to 98% of the product of the last reported sale price per share of our common stock on such trading day and the conversion rate on such trading day, then we will notify the noteholders of the same.

We will act as the initial bid solicitation agent. However, we may change the bid solicitation agent, and we may appoint any of our subsidiaries to act in that capacity as well, without prior notice to the noteholders.

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Conversion Upon Specified Corporate Events

Certain Distributions

If, before April 1, 2031, we elect to:

•distribute, to all or substantially all holders of our common stock, any rights, options or warrants (other than rights issued pursuant to a stockholder rights plan, so long as such rights have not separated from our common stock and are not exercisable until the occurrence of a triggering event, except that such rights will be deemed to be distributed under this bullet point upon their separation from our common stock or upon the occurrence of such triggering event) entitling them, for a period of not more than 60 calendar days after the record date of such distribution, to subscribe for or purchase shares of our common stock at a price per share that is less than the average of the last reported sale prices per share of our common stock for the 10 consecutive trading days ending on, and including, the trading day immediately before the date such distribution is announced (determined in accordance with the provisions described in the third paragraph of clause (2) under the heading “—Conversion Rate Adjustments—Generally” below); or

•distribute, to all or substantially all holders of our common stock, assets or securities of ours or rights to purchase our securities, which distribution per share of our common stock has a value, as reasonably determined by our board of directors, exceeding 10% of the last reported sale price per share of our common stock on the trading day immediately before the date such distribution is announced,then, in either case, we will send notice of such distribution, and of the related right to convert notes, to noteholders at least 45 scheduled trading days before the “ex-dividend date” (as defined below under the caption “—Definitions”) for such distribution (or, if later in the case of any such separation of rights issued pursuant to a stockholder rights plan or the occurrence of any such triggering event under a stockholder rights plan, as soon as reasonably practicable after we become aware that such separation or triggering event has occurred or will occur). However, if we are then otherwise permitted to settle conversions by physical settlement (and, for the avoidance of doubt, we have not elected another settlement method to apply, including pursuant to the provision described in the third sentence under the caption “—Settlement Upon Conversion—Settlement Method” below), then we may instead elect to provide such notice at least 10 scheduled trading days before such ex-dividend date. In that event, we will be required to settle all conversions with a conversion date occurring on or after the date we provide such notice and on or before the business day immediately before the ex-dividend date for such distribution (or any earlier announcement by us that such distribution will not take place) by physical settlement, and we will describe the same in the notice. Once we have sent such notice, noteholders may convert their notes at any time until the earlier of the close of business on the business day immediately before such ex-dividend date and our announcement that such distribution will not take place. However, the notes will not become convertible on account of such distribution (but we will still be required to send notice of such distribution as described above) if each noteholder participates, at the same time and on the same terms as holders of our common stock, and solely by virtue of being a noteholder, in such distribution without having to convert such noteholder’s notes and as if such noteholder held a number of shares of our common stock equal to the product of (i) the conversion rate in effect on the record date for such distribution; and (ii) the aggregate principal amount (expressed in thousands) of notes held by such noteholder on such record date.

Certain Corporate Events

If a fundamental change, make-whole fundamental change (other than a make-whole fundamental change pursuant to clause (ii) of the definition thereof) or “common stock change event” (as defined below under the caption “—Effect of Common Stock Change Event”) occurs (other than a merger or other business combination transaction that is effected solely to change our jurisdiction of incorporation and that does not constitute a fundamental change or a make-whole fundamental change), then, in each case, noteholders may convert their notes at any time from, and including, the effective date of such transaction or event to, and including, the 35th trading day after such effective date (or, if such transaction or event also constitutes a fundamental change (other than an “exempted fundamental

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change,” as defined below under the caption “—Fundamental Change Permits Noteholders to Require Us to Repurchase Notes—No Repurchase Right in Certain Circumstances”), to, but excluding, the related fundamental change repurchase date). No later than the second business day after such effective date, we will send notice to the noteholders of such transaction or event, such effective date and the related right to convert notes. If we do not provide such notice by the second business day after the effective date, then the last day on which the notes are convertible will be extended by the number of business days from, and including, the second business day after the effective date to, but excluding, the date we provide the notice.

Conversion Upon Redemption

If we call any note for redemption, then the holder of such note may convert such note at any time before the close of business on the second business day immediately before the related redemption date (or, if we fail to pay the redemption price due on such redemption date in full, at any time until such time as we pay such redemption price in full).

Conversions During Free Convertibility Period

A noteholder may convert its notes at any time from, and including, April 1, 2031 until the close of business on the second scheduled trading day immediately before the maturity date.

Conversion Procedures

To convert a beneficial interest in a global note, the owner of the beneficial interest must:

•comply with the depositary procedures for converting the beneficial interest (at which time such conversion will become irrevocable);

•if applicable, pay any interest payable on the next interest payment date, as described above under the caption “—Treatment of Interest Upon Conversion”; and

•if applicable, pay any documentary or other taxes as described below.

To convert all or a portion of a physical note, the holder of such note must:

•complete, manually sign and deliver to the conversion agent the conversion notice attached to such note or a facsimile of such conversion notice;

•deliver such note to the conversion agent (at which time such conversion will become irrevocable);

•furnish any endorsements and transfer documents that we or the conversion agent may require;

•if applicable, pay any interest payable on the next interest payment date, as described above under the caption “—Treatment of Interest Upon Conversion”; and

•if applicable, pay any documentary or other taxes as described below.

Notes may be surrendered for conversion only after the “open of business” (as defined below under the caption “—Definitions”) and before the close of business on a day that is a business day.

We will pay any documentary, stamp or similar issue or transfer tax or duty due on the issue or delivery of any shares of our common stock upon conversion. However, if any tax or duty is due because the converting noteholder requests those shares to be registered in a name other than such noteholder’s name, then such noteholder must pay such tax or duty.

We refer to the first business day on which the requirements described above to convert a note are satisfied as the “conversion date,” subject to the provision described in the last sentence under the caption “—Settlement Upon Conversion—Delivery of the Conversion Consideration.”

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If a noteholder has validly delivered a “fundamental change repurchase notice” (as defined below under the caption “—Fundamental Change Permits Noteholders to Require Us to Repurchase Notes”) or an “optional repurchase notice” (as defined below under the caption “—Purchase of Notes by Us at the Option of the Noteholders”) with respect to a note, then such note may not be converted, except to the extent (i) such notice is withdrawn in accordance with the procedures described below; or (ii) we fail to pay the related fundamental change repurchase price or optional repurchase price, as applicable, for such note.

Settlement Upon Conversion

Generally

Upon conversion, we may choose to pay or deliver, as applicable, either cash (“cash settlement”), shares of our common stock (“physical settlement”) or a combination of cash and shares of our common stock (“combination settlement”), as described below. We refer to each of these settlement methods as a “settlement method.” If cash settlement or combination settlement applies to a conversion, then the consideration due will be determined based on the conversion rate, the “daily VWAPs” per share of our common stock over an “observation period” consisting of 40 consecutive “VWAP trading days” and, in the case of combination settlement, the “specified dollar amount” (as those terms are defined below under the caption “—Definitions”) that applies to the conversion.

Settlement Method

We will have the right, as described below, to elect the settlement method applicable to the conversion of any notes. Except as described below, we must use the same settlement method for all conversions with the same conversion date, but we will not be obligated to use the same settlement method for conversions with different conversion dates. All conversions with a conversion date that occurs on or after April 1, 2031 will be settled using the same settlement method, and we will send notice of such settlement method to noteholders no later than the open of business on April 1, 2031. If we elect a settlement method for a conversion with a conversion date that occurs before April 1, 2031, then we will send notice of such settlement method to the converting noteholder no later than the close of business on the business day immediately after the conversion date. However, as described above under the captions “—Optional Redemption” and “—When the Notes May Be Converted—Conversion Upon Specified Corporate Events—Certain Distributions,” we may in certain circumstances elect that physical settlement apply to all conversions with a conversion date occurring during the periods referred to under those captions. Notwithstanding anything to the contrary described above, if we call any notes for redemption, then (i) we will specify in the related redemption notice (and, in the case of a redemption of less than all outstanding notes, in a notice simultaneously sent to all holders of notes not called for redemption) the settlement method that will apply to all conversions with a conversion date that occurs on or after the date we send such redemption notice and on or before the second business day before the related redemption date; and (ii) if the related redemption date is on or after April 1, 2031, then such settlement method must be the same settlement method that applies to all conversions with a conversion date that occurs on or after April 1, 2031.

If we do not timely elect a settlement method with respect to any conversion, then we will be deemed to have elected the “default settlement method” (as defined below). If we timely elect combination settlement with respect to a conversion but do not timely notify the converting noteholder of the applicable specified dollar amount, then the specified dollar amount for such conversion will be deemed to be $1,000 per $1,000 principal amount of notes. For the avoidance of doubt, our failure to timely elect a settlement method or specify the applicable specified dollar amount will not constitute a default or event of default under the indenture.

The “default settlement method” will initially be physical settlement. However, we may, from time to time, change the default settlement method by sending notice of the new default settlement method to the noteholders. In addition, we may, by notice to the noteholders, elect to irrevocably fix the settlement method or to irrevocably eliminate any one or more (but not all) settlement methods (including eliminating combination settlement with a particular specified dollar amount or range of specified dollar amounts). If we make such an irrevocable election, then such election will apply to all note conversions with a conversion date that is on or after the date we send such notice and we will, if needed, simultaneously change the default settlement method to a settlement method that is consistent with such irrevocable election. However, in all cases, no such irrevocable election will affect any settlement method

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theretofore elected (or deemed to be elected) with respect to any note pursuant to the indenture. For the avoidance of doubt, such an irrevocable election, if made, will be effective without the need to amend the indenture or the notes, including pursuant to the provisions described in the seventh bullet point of the third paragraph under the caption “—Modification and Amendment” below. However, we may nonetheless choose to execute such an amendment at our option.

If we change the default settlement method or irrevocably fix the settlement method pursuant to the provisions described above, then we will, substantially concurrently, either post the default settlement method or fixed settlement method, as applicable, on our website or disclose the same in a current report on Form 8-K (or any successor form) that is filed with, or furnished to, the SEC.

Consideration Due Upon Conversion

Subject to the other provisions described in this section, the consideration due upon conversion of each $1,000 principal amount of a note will be as follows:

•if physical settlement applies, a number of shares of our common stock equal to the conversion rate in effect on the conversion date for such conversion;

•if cash settlement applies, cash in an amount equal to the sum of the “daily conversion values” (as defined below under the caption “—Definitions”) for each VWAP trading day in the observation period for such conversion; or

•if combination settlement applies, (i) a number of shares of our common stock equal to the sum of the “daily share amounts” (as defined below under the caption “—Definitions”) for each VWAP trading day in the observation period for such conversion; and (ii) an amount of cash equal to the sum of the “daily cash amounts” (as defined below under the caption “—Definitions”) for each VWAP trading day in such observation period.

However, in lieu of delivering any fractional share of our common stock otherwise due upon conversion, we will pay cash based on (i) the daily VWAP on the applicable conversion date (or, if such conversion date is not a VWAP trading day, the immediately preceding VWAP trading day), in the case of physical settlement; or (ii) the daily VWAP on the last VWAP trading day of the applicable observation period, in the case of combination settlement.

If a noteholder converts more than one note on a conversion date, then the consideration due upon such conversion will (in the case of any global note, to the extent permitted by, and practicable under, the depositary procedures) be computed based on the total principal amount of notes converted on such conversion date by that noteholder.

Delivery of the Conversion Consideration

Except as described below under the captions “—Conversion Rate Adjustments” and “—Effect of Common Stock Change Event,” we will pay or deliver, as applicable, the consideration due upon conversion as follows: (i) if cash settlement or combination settlement applies, on or before the second business day immediately after the last VWAP trading day of the observation period for such conversion; and (ii) if physical settlement applies, on or before the second business day immediately after the conversion date for such conversion. However, if physical settlement applies to the conversion of any note with a conversion date that is after the regular record date immediately before the maturity date, or of any note that has been called for redemption with a conversion date that occurs during the 15 calendar days preceding the related redemption date, then, solely for purposes of such conversion, (i) we will pay or deliver, as applicable, the consideration due upon such conversion on or before the maturity date (or, if the maturity date is not a business day, the next business day), in the case of a conversion of any note with a conversion date that is after the regular record date immediately before the maturity date, or the related redemption date, in the case of a conversion of any note that has been called for redemption with a conversion date that occurs during the 15 calendar days preceding such redemption date; and (ii) the conversion date will instead be deemed to be the second business day immediately before the date referred to in clause (i).

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When Converting Noteholders Become Stockholders of Record

The person in whose name any share of our common stock is issuable upon conversion of any note will be deemed to become the holder of record of that share as of the close of business on (i) the conversion date for such conversion, in the case of physical settlement; or (ii) the last VWAP trading day of the observation period for such conversion, in the case of combination settlement.

Conversion Rate Adjustments

Generally

The conversion rate will be adjusted for the events described below. However, we are not required to adjust the conversion rate for these events (other than a stock split or combination or a tender or exchange offer) if each noteholder participates, at the same time and on the same terms as holders of our common stock, and solely by virtue of being a holder of notes, in such transaction or event without having to convert such noteholder’s notes and as if such noteholder held a number of shares of our common stock equal to the product of (i) the conversion rate in effect on the related record date; and (ii) the aggregate principal amount (expressed in thousands) of notes held by such noteholder on such date.

(1)Stock Dividends, Splits and Combinations. If we issue solely shares of our common stock as a dividend or distribution on all or substantially all shares of our common stock, or if we effect a stock split or a stock combination of our common stock (in each case excluding an issuance solely pursuant to a common stock change event, as to which the provisions described below under the caption “—Effect of Common Stock Change Event” will apply), then the conversion rate will be adjusted based on the following formula:

where:

CR0 = the conversion rate in effect immediately before the open of business on the ex-dividend date for such dividend or distribution, or immediately before the open of business on the effective date of such stock split or stock combination, as applicable;

CR1 = the conversion rate in effect immediately after the open of business on such ex-dividend date or effective date, as applicable;

OS0 = the number of shares of our common stock outstanding immediately before the open of business on such ex-dividend date or effective date, as applicable, without giving effect to such dividend, distribution, stock split or stock combination; and

OS1 = the number of shares of our common stock outstanding immediately after giving effect to such dividend, distribution, stock split or stock combination.

If any dividend, distribution, stock split or stock combination of the type described in this paragraph (1) is declared or announced, but not so paid or made, then the conversion rate will be readjusted, effective as of the date our board of directors determines not to pay such dividend or distribution or to effect such stock split or stock combination, to the conversion rate that would then be in effect had such dividend, distribution, stock split or stock combination not been declared or announced.

(2)Rights, Options and Warrants. If we distribute, to all or substantially all holders of our common stock, rights, options or warrants (other than rights issued or otherwise distributed pursuant to a stockholder rights plan, as to which the provisions described below in paragraph (3)(a) and under the caption “—Stockholder Rights Plans” will apply) entitling such holders, for a period of not more than 60 calendar days after the record date of such distribution, to subscribe for or purchase shares of our common stock at a price per

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share that is less than the average of the last reported sale prices per share of our common stock for the 10 consecutive trading days ending on, and including, the trading day immediately before the date such distribution is announced, then the conversion rate will be increased based on the following formula:

where:

CR0 = the conversion rate in effect immediately before the open of business on the ex-dividend date for such distribution;

CR1 = the conversion rate in effect immediately after the open of business on such ex-dividend date;

OS = the number of shares of our common stock outstanding immediately before the open of business on such ex-dividend date;

X = the total number of shares of our common stock issuable pursuant to such rights, options or warrants; and

Y = a number of shares of our common stock obtained by dividing (x) the aggregate price payable to exercise such rights, options or warrants by (y) the average of the last reported sale prices per share of our common stock for the 10 consecutive trading days ending on, and including, the trading day immediately before the date such distribution is announced.

To the extent such rights, options or warrants are not so distributed, the conversion rate will be readjusted to the conversion rate that would then be in effect had the increase to the conversion rate for such distribution been made on the basis of only the rights, options or warrants, if any, actually distributed. In addition, to the extent that shares of our common stock are not delivered after the expiration of such rights, options or warrants (including as a result of such rights, options or warrants not being exercised), the conversion rate will be readjusted to the conversion rate that would then be in effect had the increase to the conversion rate for such distribution been made on the basis of delivery of only the number of shares of our common stock actually delivered upon exercise of such rights, options or warrants.

For purposes of this paragraph (2) and the provisions described above under the caption “—When the Notes May Be Converted—Conversion Upon Specified Corporate Events—Certain Distributions,” in determining whether any rights, options or warrants entitle holders of our common stock to subscribe for or purchase shares of our common stock at a price per share that is less than the average of the last reported sale prices per share of our common stock for the 10 consecutive trading days ending on, and including, the trading day immediately before the date the distribution of such rights, options or warrants is announced, and in determining the aggregate price payable to exercise such rights, options or warrants, there will be taken into account any consideration we receive for such rights, options or warrants and any amount payable on exercise thereof, with the value of such consideration, if not cash, to be determined by us in good faith and in a commercially reasonable manner.

(3)Spin-Offs and Other Distributed Property.

(1)Distributions Other Than Spin-Offs. If we distribute shares of our “capital stock” (as defined below under the caption “—Definitions”), evidences of our indebtedness or other assets or property of ours, or rights,

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options or warrants to acquire our capital stock or other securities, to all or substantially all holders of our common stock, excluding:

•dividends, distributions, rights, options or warrants for which an adjustment to the conversion rate is required (or would be required without regard to the “deferral exception” (as defined below under the caption “—The Deferral Exception”)) pursuant to paragraph (1) or (2) above;

•dividends or distributions paid exclusively in cash for which an adjustment to the conversion rate is required (or would be required without regard to the deferral exception) pursuant to paragraph (4) below;

•rights issued or otherwise distributed pursuant to a stockholder rights plan, except to the extent provided below under the caption “—Stockholder Rights Plans”;

•spin-offs for which an adjustment to the conversion rate is required (or would be required without regard to the deferral exception) pursuant to paragraph (3)(b) below;

•a distribution solely pursuant to a tender offer or exchange offer for shares of our common stock, as to which the provisions described below in paragraph (5) will apply; and

•a distribution solely pursuant to a common stock change event, as to which the provisions described below under the caption “—Effect of Common Stock Change Event” will apply, then the conversion rate will be increased based on the following formula:

where:

CR0 = the conversion rate in effect immediately before the open of business on the ex-dividend date for such distribution;

CR1 = the conversion rate in effect immediately after the open of business on such ex-dividend date;

SP = the average of the last reported sale prices per share of our common stock for the 10 consecutive trading days ending on, and including, the trading day immediately before such ex-dividend date; and

FMV = the fair market value (as determined by us in good faith and in a commercially reasonable manner), as of such ex-dividend date, of the shares of capital stock, evidences of indebtedness, assets, property, rights, options or warrants distributed per share of our common stock pursuant to such distribution.

However, if FMV is equal to or greater than SP, then, in lieu of the foregoing adjustment to the conversion rate, each noteholder will receive, for each $1,000 principal amount of notes held by such noteholder on the record date for such distribution, at the same time and on the same terms as holders of our common stock, the amount and kind of shares of capital stock, evidences of indebtedness, assets, property, rights, options or warrants that such noteholder would have received in such distribution if such noteholder had owned, on such record date, a number of shares of our common stock equal to the conversion rate in effect on such record date.

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To the extent such distribution is not so paid or made, the conversion rate will be readjusted to the conversion rate that would then be in effect had the adjustment been made on the basis of only the distribution, if any, actually made or paid.

(2)Spin-Offs. If we distribute or dividend shares of capital stock of any class or series, or similar equity interests, of or relating to an “affiliate” or “subsidiary” (as those terms are defined below under the caption “—Definitions”) or other business unit of ours to all or substantially all holders of our common stock (other than solely pursuant to (x) a common stock change event, as to which the provisions described below under the caption “—Effect of Common Stock Change Event” will apply; or (y) a tender offer or exchange offer for shares of our common stock, as to which the provisions described below in paragraph (5) will apply), and such capital stock or equity interests are listed or quoted (or will be listed or quoted upon the consummation of the transaction) on a U.S. national securities exchange (a “spin-off”), then the conversion rate will be increased based on the following formula:

where:

CR0 = the conversion rate in effect immediately before the close of business on the last trading day of the “spin-off valuation period” (as defined below) for such spin-off;

CR1 = the conversion rate in effect immediately after the close of business on the last trading day of the spin-off valuation period;

FMV = the product of (x) the average of the last reported sale prices per share or unit of the capital stock or equity interests distributed in such spin-off over the 10 consecutive trading day period (the “spin-off valuation period”) beginning on, and including, the ex-dividend date for such spin-off (such average to be determined as if references to our common stock in the definitions of “last reported sale price,” “trading day” and “market disruption event” were instead references to such capital stock or equity interests); and (y) the number of shares or units of such capital stock or equity interests distributed per share of our common stock in such spin-off; and

SP = the average of the last reported sale prices per share of our common stock for each trading day in the spin-off valuation period.

Notwithstanding anything to the contrary, (i) if any VWAP trading day of the observation period for a note whose conversion will be settled pursuant to cash settlement or combination settlement occurs during the spin-off valuation period for such spin-off, then, solely for purposes of determining the conversion rate for such VWAP trading day for such conversion, such spin-off valuation period will be deemed to consist of the trading days occurring in the period from, and including, the ex-dividend date for such spin-off to, and including, such VWAP trading day; and (ii) if the conversion date for a note whose conversion will be settled pursuant to physical settlement occurs during the spin-off valuation period for such spin-off, then, solely for purposes of determining the consideration due in respect of such conversion, such spin-off valuation period will be deemed to consist of the trading days occurring in the period from, and including, the ex-dividend date for such spin-off to, and including, such conversion date.

To the extent any dividend or distribution of the type described above in this paragraph (3)(b) is declared but not made or paid, the conversion rate will be readjusted to the conversion rate that

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would then be in effect had the adjustment been made on the basis of only the dividend or distribution, if any, actually made or paid.

(4)Cash Dividends or Distributions. If any cash dividend or distribution is made to all or substantially all holders of our common stock, then the conversion rate will be increased based on the following formula:

where:

CR0 = the conversion rate in effect immediately before the open of business on the ex-dividend date for such dividend or distribution;

CR1 = the conversion rate in effect immediately after the open of business on such ex-dividend date;

SP = the last reported sale price per share of our common stock on the trading day immediately before such ex-dividend date; and

D = the cash amount distributed per share of our common stock in such dividend or distribution.

However, if D is equal to or greater than SP, then, in lieu of the foregoing adjustment to the conversion rate, each noteholder will receive, for each $1,000 principal amount of notes held by such noteholder on the record date for such dividend or distribution, at the same time and on the same terms as holders of our common stock, the amount of cash that such noteholder would have received in such dividend or distribution if such noteholder had owned, on such record date, a number of shares of our common stock equal to the conversion rate in effect on such record date. To the extent such dividend or distribution is declared but not made or paid, the conversion rate will be readjusted to the conversion rate that would then be in effect had the adjustment been made on the basis of only the dividend or distribution, if any, actually made or paid.

(5)Tender Offers or Exchange Offers. If we or any of our subsidiaries makes a payment in respect of a tender offer or exchange offer for shares of our common stock (other than solely pursuant to an odd-lot tender offer pursuant to Rule 13e-4(h)(5) under the Exchange Act), and the value (determined as of the expiration time by us in good faith and in a commercially reasonable manner) of the cash and other consideration paid per share of our common stock in such tender or exchange offer exceeds the last reported sale price per share of our common stock on the trading day immediately after the last date (the “expiration date”) on which tenders or exchanges may be made pursuant to such tender or exchange offer (as it may be amended), then the conversion rate will be increased based on the following formula:

where:

CR0 = the conversion rate in effect immediately before the close of business on the last trading day of the “tender/exchange offer valuation period” (as defined below) for such tender or exchange offer;

CR1 = the conversion rate in effect immediately after the close of business on the last trading day of the tender/exchange offer valuation period;

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AC = the aggregate value (determined as of the time (the “expiration time”) such tender or exchange offer expires by us in good faith and in a commercially reasonable manner) of all cash and other consideration paid for shares of our common stock purchased or exchanged in such tender or exchange offer;

OS0 = the number of shares of our common stock outstanding immediately before the expiration time (including all shares of our common stock accepted for purchase or exchange in such tender or exchange offer);

OS1 = the number of shares of our common stock outstanding immediately after the expiration time (excluding all shares of our common stock accepted for purchase or exchange in such tender or exchange offer); and

SP = the average of the last reported sale prices per share of our common stock over the 10 consecutive trading day period (the “tender/exchange offer valuation period”) beginning on, and including, the trading day immediately after the expiration date;

provided, however, that the conversion rate will in no event be adjusted down pursuant to the provisions described in this paragraph (5), except to the extent provided in the immediately following paragraph. Notwithstanding anything to the contrary, (i) if any VWAP trading day of the observation period for a note whose conversion will be settled pursuant to cash settlement or combination settlement occurs during the tender/exchange offer valuation period for such tender or exchange offer, then, solely for purposes of determining the conversion rate for such VWAP trading day for such conversion, such tender/exchange offer valuation period will be deemed to consist of the trading days occurring in the period from, and including, the trading day immediately after the expiration date for such tender or exchange offer to, and including, such VWAP trading day; and (ii) if the conversion date for a note whose conversion will be settled pursuant to physical settlement occurs during the tender/exchange offer valuation period for such tender or exchange offer, then, solely for purposes of determining the consideration due in respect of such conversion, such tender/exchange offer valuation period will be deemed to consist of the trading days occurring in the period from, and including, the trading day immediately after the expiration date to, and including, such conversion date.

To the extent such tender or exchange offer is announced but not consummated (including as a result of being precluded from consummating such tender or exchange offer under applicable law), or any purchases or exchanges of shares of our common stock in such tender or exchange offer are rescinded, the conversion rate will be readjusted to the conversion rate that would then be in effect had the adjustment been made on the basis of only the purchases or exchanges of shares of our common stock, if any, actually made, and not rescinded, in such tender or exchange offer.

We will not be required to adjust the conversion rate except as described above or below under the caption “—Increase in Conversion Rate in Connection with a Make-Whole Fundamental Change.” Without limiting the foregoing, we will not be required to adjust the conversion rate on account of:

•except as described above, the sale of shares of our common stock for a purchase price that is less than the market price per share of our common stock or less than the conversion price;

•the issuance of any shares of our common stock pursuant to any present or future plan providing for the reinvestment of dividends or interest payable on our securities and the investment of additional optional amounts in shares of our common stock under any such plan;

•the issuance of any shares of our common stock or options or rights to purchase shares of our common stock pursuant to any present or future employee, director or consultant benefit plan or program of, or assumed by, us or any of our subsidiaries;

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•the issuance of any shares of our common stock pursuant to any option, warrant, right or convertible or exchangeable security of ours outstanding as of the date we first issue the notes;

•solely a change in the par value of our common stock; or

•accrued and unpaid interest on the notes.

Notice of Conversion Rate Adjustments

Upon the effectiveness of any adjustment to the conversion rate pursuant to the provisions described above under the caption “—Conversion Rate Adjustments—Generally,” we will promptly send notice to the noteholders containing (i) a brief description of the transaction or other event on account of which such adjustment was made; (ii) the conversion rate in effect immediately after such adjustment; and (iii) the effective time of such adjustment.

Voluntary Conversion Rate Increases

To the extent permitted by law and applicable stock exchange rules, we, from time to time, may (but are not required to) increase the conversion rate by any amount if (i) our board of directors determines that such increase is in our best interest or that such increase is advisable to avoid or diminish any income tax imposed on holders of our common stock or rights to purchase our common stock as a result of any dividend or distribution of shares (or rights to acquire shares) of our common stock or any similar event; (ii) such increase is in effect for a period of at least 20 business days; and (iii) such increase is irrevocable during such period.

Tax Considerations

A holder or beneficial owner of the notes may, in some circumstances, including a cash distribution or dividend on our common stock, be deemed to have received a distribution that is subject to U.S. federal income tax as a result of an adjustment or the non-occurrence of an adjustment to the conversion rate. Applicable withholding taxes (including backup withholding) due on such distribution or otherwise with respect to the notes may be withheld from interest and payments upon conversion, repurchase, redemption or maturity of the notes. In addition, if any withholding taxes (including backup withholding) are paid on behalf of a holder or beneficial owner, then those withholding taxes may be withheld from or set off against payments of cash or the delivery of shares of our common stock, if any, in respect of the notes (or, in some circumstances, any payments on our common stock) or sales proceeds received by, or other funds or assets of, that holder or beneficial owner. For a discussion of the U.S. federal income tax treatment of an adjustment to the conversion rate, see “Material U.S. Federal Income Tax Considerations.”

The Deferral Exception

If an adjustment to the conversion rate otherwise required by the indenture would result in a change of less than 1% to the conversion rate, then we may, at our election, defer and carry forward such adjustment, except that all such deferred adjustments must be given effect immediately upon the earliest of the following: (i) when all such deferred adjustments would, had they not been so deferred and carried forward, result in a change of at least 1% to the conversion rate; (ii) the conversion date of, or any VWAP trading day of an observation period for, any note; (iii) the date a fundamental change or make-whole fundamental change occurs; (iv) the date we call any notes for redemption; and (v) April 1, 2031. We refer to our ability to defer adjustments as described above as the “deferral exception.”

Special Provisions for Adjustments that Are Not Yet Effective and Where Converting Noteholders Participate in the Relevant Transaction or Event

Notwithstanding anything to the contrary, if:

•a note is to be converted pursuant to physical settlement or combination settlement;

•the record date, effective date or expiration time for any event that requires an adjustment to the conversion rate pursuant to the provisions described above under the caption “—Conversion Rate

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Adjustments—Generally” has occurred on or before the conversion date for such conversion (in the case of physical settlement) or on or before any VWAP trading day in the observation period for such conversion (in the case of combination settlement), but an adjustment to the conversion rate for such event has not yet become effective as of such conversion date or VWAP trading day, as applicable;

•the consideration due upon such conversion includes any whole shares of our common stock (in the case of physical settlement) or due in respect of such VWAP trading day includes any whole or fractional shares of our common stock (in the case of combination settlement); and

•such shares are not entitled to participate in such event (because they were not held on the related record date or otherwise),

then, solely for purposes of such conversion, we will, without duplication, give effect to such adjustment on such conversion date (in the case of physical settlement) or such VWAP trading day (in the case of combination settlement). In such case, if the date we are otherwise required to deliver the consideration due upon such conversion is before the first date on which the amount of such adjustment can be determined, then we will delay the settlement of such conversion until the second business day after such first date.

Notwithstanding anything to the contrary, if:

•a conversion rate adjustment for any dividend or distribution becomes effective on any ex-dividend date pursuant to the provisions described above under the caption “—Conversion Rate Adjustments—Generally”;

•a note is to be converted pursuant to physical settlement or combination settlement;

•the conversion date for such conversion (in the case of physical settlement) or any VWAP trading day in the observation period for such conversion (in the case of combination settlement) occurs on or after such ex-dividend date and on or before the related record date;

•such shares would be entitled to participate in such dividend or distribution,

then:

•in the case of physical settlement, such conversion rate adjustment will not be given effect for such conversion and the shares of our common stock issuable upon such conversion based on such unadjusted conversion rate will not be entitled to participate in such dividend or distribution, but there will be added, to the consideration otherwise due upon such conversion, the same kind and amount of consideration that would have been delivered in such dividend or distribution with respect to such shares had such shares been entitled to participate in such dividend or distribution; and

•in the case of combination settlement, the conversion rate adjustment relating to such ex-dividend date will be made for such conversion in respect of such VWAP trading day, but the shares of our common stock issuable with respect to such VWAP trading day based on such adjusted conversion rate will not be entitled to participate in such dividend or distribution.

Stockholder Rights Plans

If any shares of our common stock are to be issued upon conversion of any note and, at the time of such conversion, we have in effect any stockholder rights plan, then the holder of that note will be entitled to receive, in addition to, and concurrently with the delivery of, the consideration otherwise due upon such conversion, the rights set forth in such stockholder rights plan, unless such rights have separated from our common stock at such time, in which case,

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and only in such case, the conversion rate will be adjusted pursuant to the provisions described above in paragraph (3)(a) under the caption “—Conversion Rate Adjustments—Generally” on account of such separation as if, at the time of such separation, we had made a distribution of the type referred to in such paragraph to all holders of our common stock, subject to potential readjustment pursuant to the provisions described in such paragraph. We currently do not have a stockholder rights plan.

Increase in Conversion Rate in Connection with a Make-Whole Fundamental Change

Generally

If a make-whole fundamental change occurs and the conversion date for the conversion of a note occurs during the related “make-whole fundamental change conversion period” (as defined below under the caption “—Definitions”), then, subject to the provisions described below, the conversion rate applicable to such conversion will be increased by a number of shares (the “additional shares”) set forth in the table below corresponding (after interpolation as described below) to the “make-whole fundamental change effective date” (as defined below under the caption “—Definitions”) and the “stock price” (as defined below under the caption “—Definitions”) of such make-whole fundamental change:


	Stock Price
Make-Whole Fundamental Change Effective Date	$	$	$	$	$	$	$	$
, 2026
July 1, 2027
July 1, 2028
July 1, 2029
July 1, 2030
July 1, 2031

If such make-whole fundamental change effective date or stock price is not set forth in the table above, then:

•if such stock price is between two stock prices in the table above or the make-whole fundamental change effective date is between two dates in the table above, then the number of additional shares will be determined by straight-line interpolation between the numbers of additional shares set forth for the higher and lower stock prices in the table above or the earlier and later dates in the table above, based on a 365- or 366-day year, as applicable; and

•if the stock price is greater than $ (subject to adjustment in the same manner as the stock prices set forth in the column headings of the table above are adjusted, as described below under the caption “—Adjustment of Stock Prices and Number of Additional Shares”), or less than $ (subject to adjustment in the same manner), per share, then no additional shares will be added to the conversion rate.

Notwithstanding anything to the contrary, in no event will the conversion rate be increased to an amount that exceeds shares of our common stock per $1,000 principal amount of notes, which amount is subject to adjustment in the same manner as, and at the same time and for the same events for which, the conversion rate is required to be adjusted pursuant to the provisions described above under the caption “—Conversion Rate Adjustments—Generally.”

For the avoidance of doubt, calling any notes for redemption will constitute a make-whole fundamental change only with respect to the notes called for redemption, and not with respect to the notes not called for redemption. Accordingly, if we elect to redeem less than all of the outstanding notes, then holders of the notes not called for redemption will not be entitled to an increased conversion rate for such notes as described above on account of the redemption, except to the limited extent described above under the caption “—Optional Redemption.”

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As set forth in the definition of “make-whole fundamental change conversion period” below under the caption “—Definitions,” if the conversion date for the conversion of a note occurs during a make-whole fundamental change conversion period relating to both a make-whole fundamental change resulting from our calling notes for redemption and another make-whole fundamental change, then, solely for purposes of that conversion, such conversion date will be deemed to occur only during the period relating to the make-whole fundamental change with the earlier make-whole fundamental change effective date. In that circumstance, the make-whole fundamental change with the later make-whole fundamental change effective date will be deemed not to occur for purposes of such conversion.

Adjustment of Stock Prices and Number of Additional Shares

The stock prices in the first row (i.e., the column headers) of the table above will be adjusted in the same manner as, and at the same time and for the same events for which, the conversion price is adjusted as a result of the operation of the provisions described above under the caption “—Conversion Rate Adjustments—Generally.” The numbers of additional shares in the table above will be adjusted in the same manner as, and at the same time and for the same events for which, the conversion rate is adjusted pursuant to the provisions described above under the caption “—Conversion Rate Adjustments—Generally.”

Notice of Make-Whole Fundamental Change

We will notify noteholders of each make-whole fundamental change in accordance with the provisions described above under the captions “—When the Notes May Be Converted—Conversion Upon Specified Corporate Events—Certain Corporate Events” and “—Optional Redemption.”

Enforceability

Our obligation to increase the conversion rate as described above in connection with a make-whole fundamental change could be considered a penalty, in which case its enforceability would be subject to general principles of reasonableness and equitable remedies.

Effect of Common Stock Change Event

Generally

If there occurs any:

•recapitalization, reclassification or change of our common stock, other than (x) changes solely resulting from a subdivision or combination of our common stock, (y) a change only in par value or from par value to no par value or no par value to par value or (z) stock splits and stock combinations that do not involve the issuance of any other series or class of securities;

•consolidation, merger, combination or binding or statutory share exchange involving us;

•sale, lease or other transfer of all or substantially all of the assets of us and our subsidiaries, taken as a whole, to any person; or

•other similar event, and, as a result of which, our common stock is converted into, or is exchanged for, or represents solely the right to receive, other securities, cash or other property, or any combination of the foregoing (such an event, a “common stock change event,” and such other securities, cash or property, the “reference property,” and the amount and kind of reference property that a holder of one share of our common stock would be entitled to receive on account of such common stock change event (without giving effect to any arrangement not to issue or deliver a fractional portion of any security or other property), a “reference property unit”), then, notwithstanding anything to the contrary,

•from and after the effective time of such common stock change event, (i) the consideration due upon conversion of any note, and the conditions to any such conversion, will be determined in the same manner as if each reference to any number of shares of our common stock in the provisions described

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under this “—Conversion Rights” section (or in any related definitions) were instead a reference to the same number of reference property units; (ii) for purposes of the redemption provisions described above under the caption “—Optional Redemption,” each reference to any number of shares of our common stock in such provisions (or in any related definitions) will instead be deemed to be a reference to the same number of reference property units; and (iii) for purposes of the definitions of “fundamental change” and “make-whole fundamental change,” references to our “common stock” and “common equity” will be deemed to refer to the common equity (including depositary receipts representing common equity), if any, forming part of such reference property;

•if such reference property unit consists entirely of cash, then (i) each conversion of any note with a conversion date that occurs on or after the effective date of such common stock change event will be settled entirely in cash in an amount, per $1,000 principal amount of such note being converted, equal to the product of (x) the conversion rate in effect on such conversion date (including, for the avoidance of doubt, any increase to such conversion rate pursuant to the provisions described above under the caption “—Increase in Conversion Rate in Connection with a Make-Whole Fundamental Change,” if applicable); and (y) the amount of cash constituting such reference property unit; and (ii) we will settle each such conversion no later than the 10th business day after the relevant conversion date; and

•for these purposes, (i) the daily VWAP of any reference property unit or portion thereof that consists of a class of common equity securities will be determined by reference to the definition of “daily VWAP,” substituting, if applicable, the Bloomberg page for such class of securities in such definition; and (ii) the daily VWAP of any reference property unit or portion thereof that does not consist of a class of common equity securities, and the last reported sale price of any reference property unit or portion thereof that does not consist of a class of securities, will be the fair value of such reference property unit or portion thereof, as applicable, determined in good faith and in a commercially reasonable manner by us (or, in the case of cash denominated in U.S. dollars, the face amount thereof).

If the reference property consists of more than a single type of consideration to be determined based in part upon any form of stockholder election, then the composition of the reference property unit will be deemed to be the weighted average of the types and amounts of consideration actually received, per share of our common stock, by the holders of our common stock. We will notify the noteholders of such weighted average as soon as practicable after such determination is made.

We will not become a party to any common stock change event unless its terms are consistent with the provisions described under this “—Effect of Common Stock Change Event” caption.

Execution of Supplemental Indenture

At or before the effective time of the common stock change event, we and the resulting, surviving or transferee person (if not us) of such common stock change event (the “successor person”) will execute and deliver to the trustee a supplemental indenture that (i) provides for subsequent adjustments to the conversion rate in a manner consistent with the provisions described above; and (ii) contains such other provisions, if any, that we reasonably determine are appropriate to preserve the economic interests of the noteholders and to give effect to the provisions described above. If the reference property includes shares of stock or other securities or assets (other than cash) of a person other than the successor person, then such other person will also execute such supplemental indenture and such supplemental indenture will contain such additional provisions, if any, that we reasonably determine are appropriate to preserve the economic interests of noteholders.

However, no such supplemental indenture is required (but we may nonetheless choose to execute such a supplemental indenture at our option) if (i) we are the resulting, surviving or transferee person of such common stock change event; and (ii) the reference property of such common stock change event does not include consideration other than cash or our securities.

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Notice of Common Stock Change Event

We will provide notice of each common stock change event to noteholders no later than the second business day after the effective date of the common stock change event.

Exchange in Lieu of Conversion

Notwithstanding anything to the contrary, and subject to the terms of the indenture, if a note is submitted for conversion, we may elect to arrange to have such note exchanged in lieu of conversion by a financial institution we designate. To make such election, we must send notice of such election to the holder of such note before the close of business on the business day immediately following the conversion date for such note, and we must arrange for the financial institution to deliver the consideration due upon such conversion in the same manner and at the same time as we would have been required to do so. We will remain responsible to deliver such consideration if the financial institution fails to timely deliver the same.

Equitable Adjustments to Prices

Whenever the indenture requires us to calculate the average of the last reported sale prices, or any function thereof, over a period of multiple days (including to calculate the stock price or an adjustment to the conversion rate), or to calculate daily VWAPs over an observation period, we will make appropriate adjustments, if any, to those calculations to account for any adjustment to the conversion rate pursuant to the provisions described above under the caption “—Conversion Rights—Conversion Rate Adjustments—Generally” that becomes effective, or any event requiring such an adjustment to the conversion rate where the ex-dividend date or effective date, as applicable, of such event occurs, at any time during such period or observation period, as applicable.

Fundamental Change Permits Noteholders to Require Us to Repurchase Notes

The information in the accompanying prospectus under the caption “No Protection in the Event of a Change of Control” shall not apply to the notes.

Generally

If a fundamental change occurs, then each noteholder will have the right (the “fundamental change repurchase right”) to require us to repurchase its notes (or any portion thereof in an authorized denomination) for cash on a date (the “fundamental change repurchase date”) of our choosing, which must be a business day that is no more than 35, nor less than 20, business days after the date we send the related fundamental change notice, as described below.

The repurchase price (the “fundamental change repurchase price”) for a note tendered for repurchase will be the principal amount of such note plus accrued and unpaid interest on such note to, but excluding, the fundamental change repurchase date. However, if the fundamental change repurchase date is after a regular record date and on or before the next interest payment date, then (i) the holder of such note at the close of business on such regular record date will be entitled, notwithstanding such repurchase, to receive, on or, at our election, before such interest payment date, the unpaid interest that would have accrued on such note to, but excluding, such interest payment date; and (ii) the fundamental change repurchase price will not include accrued and unpaid interest on such note to, but excluding, the fundamental change repurchase date.

Notwithstanding anything to the contrary above, we may not repurchase any notes if the principal amount of the notes has been accelerated and such acceleration has not been rescinded on or before the fundamental change repurchase date (including as a result of the payment of the related fundamental change repurchase price and any related interest described above on the fundamental change repurchase date).

Notice of Fundamental Change

On or before the 20th calendar day after the effective date of a fundamental change, we will send to each noteholder notice of such fundamental change containing certain information set forth in the indenture, including the fundamental change repurchase date, the fundamental change repurchase price and the procedures noteholders must follow to tender their notes for repurchase.

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Procedures to Exercise the Fundamental Change Repurchase Right

To exercise its fundamental change repurchase right with respect to a note, the holder thereof must deliver a notice (a “fundamental change repurchase notice”) to the paying agent before the close of business on the business day immediately before the related fundamental change repurchase date (or such later time as may be required by law).

The fundamental change repurchase notice must contain certain information set forth in the indenture, including the certificate number of any physical notes to be repurchased, or must otherwise comply with the depositary procedures in the case of a global note.

A noteholder that has delivered a fundamental change repurchase notice with respect to a note may withdraw that notice by delivering a withdrawal notice to the paying agent at any time before the close of business on the business day immediately before the fundamental change repurchase date. The withdrawal notice must contain certain information set forth in the indenture, including the certificate number of any physical notes with respect to which the withdrawal notice is being delivered, or must otherwise comply with the depositary procedures in the case of a global note.

Notes to be repurchased must be delivered to the paying agent (in the case of physical notes) or the depositary procedures must be complied with (in the case of global notes) for the holder of those notes to be entitled to receive the fundamental change repurchase price.

Compliance with Securities Laws

We will comply, in all material respects, with all federal and state securities laws in connection with a repurchase following a fundamental change (including complying with Rules 13e-4 and 14e-1 under the Exchange Act and filing any required Schedule TO, to the extent applicable) so as to permit effecting such repurchase in the manner described above. However, to the extent that our obligations to offer to repurchase and to repurchase notes pursuant to the provisions described above conflict with any law or regulation that is applicable to us and enacted after the date we initially issue the notes, our compliance with such law or regulation will not be considered to be a default of those obligations.

Repurchase by Third Party

Notwithstanding anything to the contrary, we will be deemed to satisfy our obligations to repurchase notes pursuant to the provisions described above if (i) one or more third parties conduct the repurchase offer and repurchase tendered notes in a manner that would have satisfied our obligations to do the same if conducted directly by us; and (ii) an owner of a beneficial interest in any note repurchased by such third party or parties will not receive a lesser amount (as a result of withholding or other similar taxes) than such owner would have received had we repurchased such note.

No Repurchase Right in Certain Circumstances

Notwithstanding anything to the contrary, we will not be required to send a fundamental change notice, or offer to repurchase or repurchase any notes, as described above, in connection with a common stock change event that constitutes a fundamental change pursuant to clause (ii)(2) of the definition thereof (regardless of whether such common stock change event also constitutes a fundamental change pursuant to any other clause of such definition), if:

•the reference property of such common stock change event consists entirely of cash in U.S. dollars;

•immediately after such fundamental change, the notes become convertible (pursuant to the provisions described above under the captions “—Conversion Rights—Effect of Common Stock Change Event” and, if applicable, “—Conversion Rights—Increase in Conversion Rate in Connection with a Make-Whole Fundamental Change”) into consideration that consists solely of U.S. dollars in an amount per $1,000 principal amount of notes that equals or exceeds the fundamental change repurchase price per $1,000 principal amount of notes (calculated assuming that the same includes accrued and unpaid

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interest to, but excluding, the latest possible fundamental change repurchase date for such fundamental change); and

•we timely send the notice relating to such fundamental change required pursuant to the provisions described above under the caption “—Conversion Rights—When the Notes May Be Converted—Conversion Upon Specified Corporate Events—Certain Corporate Events” and include, in such notice, a statement that we are relying on the provisions described in this “—No Repurchase Right in Certain Circumstances” section.

We refer to any fundamental change with respect to which, in accordance with the provisions described above, we do not offer to repurchase any notes as an “exempted fundamental change.”

Purchase of Notes by Us at the Option of the Noteholders

Generally

Each noteholder will have the right (the “optional repurchase right”) to require us to repurchase such noteholder’s notes (or any portion thereof in an authorized denomination) on July 6, 2029 (the “optional repurchase date”) for cash (the “optional repurchase price”) in an amount equal to the principal amount of the note (or portion thereof) to be repurchased. For the avoidance of doubt, our repurchase of any notes on the optional repurchase date will not affect our obligation to pay the interest otherwise due on such notes on such date to the holders of such notes at the close of business on the preceding regular record date.

Notwithstanding anything to the contrary above, we may not repurchase any notes if the principal amount of the notes has been accelerated and such acceleration has not been rescinded on or before the optional repurchase date (including as a result of the payment of the related optional repurchase price and any related interest described above on the optional repurchase date).

Notice of Optional Repurchase

No later than 20 business days before the optional repurchase date, we will send to each noteholder notice of such optional repurchase right containing certain information set forth in the indenture, including the optional repurchase date, the optional repurchase price and the procedures noteholders must follow to tender their notes for repurchase.

Procedures to Require Us to Repurchase Notes

To exercise its optional repurchase right with respect to a note, the holder thereof must deliver a notice (an “optional repurchase notice”) to the paying agent before the close of business on the business day immediately before the optional repurchase date (or such later time as may be required by law).

The optional repurchase notice must contain certain information set forth in the indenture, including the certificate number of any physical notes to be repurchased, or must otherwise comply with the depositary procedures in the case of a global note.

A noteholder that has delivered an optional repurchase notice with respect to a note may withdraw that notice by delivering a withdrawal notice to the paying agent at any time before the close of business on the business day immediately before the optional repurchase date. The withdrawal notice must contain certain information set forth in the indenture, including the certificate number of any physical notes with respect to which the withdrawal notice is being delivered, or must otherwise comply with the depositary procedures in the case of a global note.

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Compliance with Securities Laws

We will comply, in all material respects, with all federal and state securities laws in connection with an optional repurchase (including complying with Rules 13e-4 and 14e-1 under the Exchange Act and filing any required Schedule TO, to the extent applicable) so as to permit effecting such repurchase in the manner described above. If, after complying with the preceding sentence to the extent applicable, any such laws prohibit us from taking any action otherwise required by the provisions described above under this “—Purchase of Notes by Us at the Option of the Noteholders” section, then, notwithstanding anything to the contrary, our failure to take such action will, to the extent the same is prohibited by such laws, be deemed not to be a breach of our obligations under such provisions.

Repurchase by Third Party

Consolidation, Merger and Asset Sale

For purposes of the notes, the description below under this section titled “—Consolidation, Merger and Asset Sale” supersedes, in its entirety, the information in the accompanying prospectus under the caption “Consolidation, Merger and Sale of Assets.”

We will not consolidate with or merge with or into, or (directly, or indirectly through one or more of our subsidiaries) sell, lease or otherwise transfer, in one transaction or a series of transactions, all or substantially all of the assets of us and our subsidiaries, taken as a whole, to another person (a “business combination event”), unless:

•the resulting, surviving or transferee person is us or, if not us, is a “qualified successor entity” (as defined below under the caption “—Definitions”) (such qualified successor entity, the “successor entity”) duly organized and existing under the laws of the United States of America, any State thereof or the District of Columbia that expressly assumes (by executing and delivering to the trustee, at or before the effective time of such business combination event, a supplemental indenture) all of our obligations under the indenture and the notes; and

•immediately after giving effect to such business combination event, no “default” (as defined below under the caption “—Definitions”) will have occurred and be continuing.

At the effective time of a business combination event that complies with the provisions described above, the successor entity (if not us) will succeed to, and may exercise every right and power of, us under the indenture and the notes, and, except in the case of a lease, the predecessor company will be discharged from its obligations under the indenture and the notes.

Notwithstanding anything to the contrary above, the provisions described above will not apply to any transfer of assets (other than by merger or consolidation) between or among us and any one or more of our “wholly owned subsidiaries” (as defined below under the caption “—Definitions”).

The definition of “business combination event” includes a reference to “all or substantially all” of our and our subsidiaries’ assets. There is no precise, established definition of the phrase “all or substantially all” under applicable law. Accordingly, there may be uncertainty as to whether the provisions described above would apply to a sale, lease or transfer of less than all of our and our subsidiaries’ assets.

Events of Default

For purposes of the notes, the description below under this section titled “—Events of Default” supersedes, in its entirety, the information in the accompanying prospectus under the caption “Events of Default.”

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Generally

An “event of default” means the occurrence of any of the following:

(1)a default in the payment when due (whether at maturity, upon redemption, repurchase upon fundamental change or optional repurchase or otherwise) of the principal of, or the redemption price, fundamental change repurchase price or optional repurchase price for, any note;

(2)a default for 30 consecutive days in the payment when due of interest on any note;

(3)our failure to deliver, when required by the indenture, a notice of optional repurchase pursuant to the provisions described above under the caption “—Purchase of Notes by Us at the Option of the Noteholders—Notice of Optional Repurchase,” a fundamental change notice or a notice pursuant to the provisions described above under the caption “—Conversion Rights—When the Notes May Be Converted—Conversion Upon Specified Corporate Events,” if (in the case of any notice other than a notice pursuant to the provisions described above under the caption “—Conversion Rights—When the Notes May Be Converted—Conversion Upon Specified Corporate Events—Certain Distributions”) such failure is not cured within five days after its occurrence;