mlkn-20260629

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 11-K

[X] Annual Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934

for the fiscal year ended December 31, 2025

[_] Transition Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934

Commission File Number: 001-15141

________________________________________________

A. Full title of the plan and the address of the plan, if different from that of the issuer named below:

MillerKnoll Retirement Plan

B. Name of issuer of the securities held pursuant to the plan and the address of its principal executive office:

MillerKnoll, Inc.

855 East Main Avenue

P.O. Box 302

Zeeland, Michigan 49464-0302

MillerKnoll Retirement Plan

Financial Statements and Supplemental Schedule

Years Ended December 31, 2025 and 2024


Table Of Contents
Report of Independent Registered Public Accounting Firm						3
Financial Statements
Statements of Net Assets Available for Benefits						4
Statement of Changes in Net Assets Available for Benefits						5
Notes to Financial Statements						6
Supplemental Schedule
Schedule H, Line 4i - Schedule of Assets (Held at End of Year)						12
Signatures						14
Exhibits						15

Report of Independent Registered Public Accounting Firm

To the Plan Administrator and Plan Participants of

MillerKnoll Retirement Plan

Opinion on the Financial Statements

We have audited the accompanying statements of net assets available for benefits of the MillerKnoll Retirement Plan (the Plan) as of December 31, 2025 and 2024, and the related statement of changes in net assets available for benefits for the year ended December 31, 2025, and the related notes to financial statements (collectively referred to as the financial statements). In our opinion, the financial statements present fairly, in all material respects, the net assets available for benefits of the Plan as of December 31, 2025 and 2024, and the changes in net assets available for benefits for the year ended December 31, 2025, in conformity with accounting principles generally accepted in the United States of America.

Basis for Opinion

These financial statements are the responsibility of Plan’s management (Management). Our responsibility is to express an opinion on the financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Plan in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. The Plan is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits, we are required to obtain an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Plan’s internal control over financial reporting. Accordingly, we express no such opinion.

Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by Management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

Supplemental Schedule

The Schedule of Assets (Held at End of Year) as of December 31, 2025, has been subjected to audit procedures performed in conjunction with the audit of the Plan’s financial statements. The supplemental schedule is the responsibility of Management. Our audit procedures included determining whether the supplemental schedule reconciles to the financial statements or the underlying accounting and other records, as applicable, and performing procedures to test the completeness and accuracy of the information presented in the supplemental schedule. In forming our opinion on the supplemental schedule, we evaluated whether the supplemental schedule, including its form and content, is presented in conformity with the Department of Labor’s Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974. In our opinion, the supplemental schedule is fairly stated, in all material respects, in relation to the financial statements taken as a whole.

/s/ McConnell & Jones LLP

Houston, Texas

June 29, 2026

We have served as the Plan’s auditor since 2023

MillerKnoll Retirement Plan

Statements of Net Assets Available for Benefits


	December 31, 2025		December 31, 2024
Assets

Investments at fair value	$	1,540,983,000	$	1,417,978,486
Receivables:
Employee contributions	472,326		—
Employer contributions	1,285,090		1,036,545
Notes receivable from participants	12,244,429		11,062,183

Accrued investment income	369,437		342,626
Total receivables	14,371,282		12,441,354

Net assets available for benefits	$	1,555,354,282	$	1,430,419,840

See accompanying notes to the financial statements.

MillerKnoll Retirement Plan

Statement of Changes in Net Assets Available for Benefits

Year Ended December 31, 2025


Additions to net assets attributed to:

Contributions
Employee	$	50,938,953
Employer	23,164,454
Rollover	7,986,841
Total contributions	82,090,248

Investment income
Dividend and interest income	18,270,901
Net appreciation in fair value of investments	183,645,652
Net total investment income	201,916,553

Interest income - notes receivable from participants	927,247

Total income and contributions	284,934,048

Deductions from net assets attributed to:
Benefit payments	158,701,014
Administrative expenses	1,298,592
Total deductions	159,999,606





Net increase	124,934,442

Net assets available for benefits:
Beginning of year	1,430,419,840
End of year	$	1,555,354,282

See accompanying notes to the financial statements.

MillerKnoll Retirement Plan

Notes to Financial Statements

As of December 31, 2025 and 2024 and the year ended December 31, 2025

1. Plan Description

The Plan is a defined-contribution plan and subject to the provisions of the Employee Retirement Income Security Act of 1974 (ERISA), as amended. The following description of the major provisions of the Plan is provided for general information purposes only. Reference should be made to the Plan document or Summary Plan Description for more complete information.

Plan Sponsor

MillerKnoll, Inc. sponsors and administers the Plan for the benefit of any or all employees of MillerKnoll, Inc. and its participating affiliates ("the Company" or "employer").

Trustee

Under a trust agreement with the Plan administrator, Vanguard Fiduciary Trust Company ("Vanguard") is Trustee of the Plan. In accordance with the responsibilities of the Trustee, as designated in the Trust Agreement, the Trustee administers and invests the Plan’s assets and income for the benefit of the Plan’s participants.

Participation Requirements

Eligible employees of the Company qualify to participate on their first day of employment after the employee has attained age 18.

Salary Deferral Contributions

A participant may make salary deferral contributions to the Plan. Such deferral is limited to a maximum amount or percentage of the participant’s compensation as determined by the Plan and the Internal Revenue Code. The Plan provides participants with the option to make pre-tax contributions and Roth post-tax contributions.

Pursuant to recent legislative changes, the Plan provides enhanced catch‑up contribution limits for participants who attain ages 60 through 63 during the plan year, subject to the applicable limits under the Internal Revenue Code.

New employees are automatically enrolled to the Plan within a reasonable time after the employee becomes a participant to contribute 3% of their compensation, unless they affirmatively elect not to participate or to participate at a different level. In addition, unless they elect differently, participant's contributions automatically increase by 1% each plan year. The automatic increase will stop when the participant's contributions reach 8% of their compensation.

Employer Contributions

The Company contributes to the Plan in the form of matching contributions and discretionary contributions.

The Company will match 100% of participants’ elective deferral contributions up to 4% of eligible compensation. Matching contributions are determined on a payroll‑period basis and are contributed during or after the plan year. Matching contributions may be recalculated following the end of the plan year based on participant’s annual compensation, with any additional amounts contributed as soon as practicable.

The Company may also make discretionary contributions to the Plan. If made, discretionary contributions are allocated to eligible participants in proportion to compensation for the applicable period. The decision to make discretionary contributions, including the amount and timing, is at the sole discretion of the employer.

Vesting

Participants are immediately vested in their contributions plus actual earnings thereon. Vesting in the discretionary employer and matching contributions, plus actual earnings thereon is based on years of service. Under a graded vesting schedule, discretionary employer contributions and matching contributions become 50% vested after one year of service, and 100% vested after two years of service. Participants are fully vested upon reaching age 65, or termination of employment due to death or disability.

Forfeiture

Participants forfeit the non-vested portion of their accounts in the Plan upon termination of employment with the Company. Forfeited balances of terminated non-vested participant accounts may be used at the Company's discretion to pay Plan administrative expenses or reduce employer contributions. During 2025, $164,900 of forfeited non-vested accounts were used to pay administrative expenses. In 2025 and 2024, employer contributions were reduced by $982,597 and $1,060,195, from forfeited non-vested accounts, respectively. The amounts of unallocated forfeitures at December 31, 2025, and 2024 were $217,968 and $454,612 respectively.

Investment Options

Participants have the ability to direct the investment of their salary deferral and employer contributions into any or all of the investment options offered by the Plan, which currently include the Company’s common stock, various mutual funds and collective trusts.

Participant Accounts

Individual accounts are maintained for each participant to reflect the participant’s contributions, employer contributions and net investment earnings or loss. Investment earnings or losses are allocated daily based on each participant’s relative account balance within the respective fund.

Voting Rights

Each participant is entitled to exercise voting rights attributable to the Company’s common stock allocated to his or her account and is notified by the Trustee prior to the time that such rights are to be exercised. If a participant fails to provide direction as to voting their shares on any issue, the Trustee will vote the shares as directed by the Plan administrator.

Benefit Payments

Upon retirement, termination, death or disability, a participant or beneficiary may elect to receive their benefit payment in the form of installments or a single lump-sum payment of a participant’s entire account balance via distribution of the Company’s common stock, cash, or a combination of both as directed by the participant and defined in the Plan document. Participants may also elect to receive withdrawals from the Plan during their employment with the Company, subject to certain restrictions defined in the Plan document.

Notes Receivable From Participants

Upon approval, a participant may receive a loan from their salary deferral or rollover account. The loan amount shall not exceed the lesser of 50% of the sum of all of the participant’s vested account balances on the date the loan is approved or $50,000. The period of the loan will not exceed 5 years unless the proceeds are used to acquire the participant’s principal dwelling unit for which the period of the loan will not exceed 10 years. Each loan is secured by the assignment of 50% of the interest in and to the participant’s account. The loans bear interest at a rate representative of rates charged by commercial lending institutions for comparable loans. All loans must be repaid in bi-weekly installments of principal and interest through payroll deduction arrangements with the Company or repaid directly to the Trustee.

Administrative Expenses

Plan fees are shared by Plan participants and the Company. Expenses that are paid by the Company are excluded from these financial statements. Recordkeeping fees for the Plan are paid by plan participants. Participants are charged an investment management fee as a percentage of their balance in each fund held in their account. This percentage does not cover the full cost of administration. Therefore, the Company pays the balance of the expenses not paid by the participants. Investment management fees are charged to the Plan as a reduction of investment return and are reflected in the investment income reported by the Plan.

Plan Termination

The Plan may be discontinued at any time by the Company, but only upon the condition that such action shall render it impossible for any part of the trust to be used for purposes other than the exclusive benefit of participants. Upon complete or partial termination of the Plan, including complete discontinuance of contributions, the trust will continue to be administered as provided in the trust agreement. In the event of Plan termination, participants will become 100% vested in employer contributions. The Company currently has no intention to terminate the Plan.

Recent Accounting Pronouncements

The Plan's management continuously monitors and reviews all current accounting pronouncements and standards from the Financial Accounting Standards Board (FASB) and other authoritative sources of U.S. GAAP for applicability to the Plan's operations. As of December 31, 2025, there were no new pronouncements, interpretations or staff positions that had or were expected to have, including those not yet adopted, a significant impact on the financial statements of the Plan.

2. Summary of Significant Accounting and Reporting Policies

Basis of Accounting

The financial statements of the MillerKnoll Retirement Plan ("the Plan") are presented on the accrual basis of accounting in accordance with accounting principles generally accepted in the United States of America ("GAAP").

Payment of Benefits

Benefit payments to participants are recorded when paid.

Notes Receivable from Participants

Notes receivable from participants represent participant loans that are recorded at their unpaid principal balance plus any accrued but unpaid interest. Interest income on notes receivable from participants is recorded when it is earned. Related fees are recorded as administrative expenses and are expensed when they are incurred. If a participant ceases to make loan repayments and the Plan deems the participant loan to be a distribution, the participant loan balance is reduced and a benefit payment is recorded.

Investment Valuation and Income Recognition

The Plan's investments are reported at fair value. The fair value of common stocks and mutual funds is based on quoted market prices on the last day of the plan year. The fair value of participation units in collective trust funds is based on quoted redemption values on the last day of the plan year.

Mutual funds: The fair values of mutual fund investments are determined by obtaining quoted prices on nationally recognized securities exchanges (level 1 inputs).

Company common stock: The fair value of MillerKnoll, Inc. common stock is determined by obtaining quoted prices from a nationally recognized exchange (level 1 inputs).

Collective trusts: The fair value of participant units held in the collective trust funds are based on their net asset values (NAV), as reported by the managers of the collective trust funds and as supported by the unit prices of actual purchase and sale transactions occurring as of or close to the financial statement date. Underlying investments of the S&P 500 Index Fund and S&P MidCap 400 Index Fund consist primarily of common stocks. Underlying investments of the Aggregate Bond Index Fund consist primarily of bonds. The Putnam Stable Value Fund invests primarily in guaranteed and security-backed investment contracts with life insurance companies, banks, and other financial institutions. The Harbor Capital Appreciation Fund invests primarily in equity securities, principally common and preferred stocks, of U.S. companies. The Vanguard Target Retirement Funds offer a diversified portfolio within a single fund that adjusts its underlying asset mix of stocks and bonds over time.

The collective trust funds provide for daily redemptions by the Plan at reported net asset values per share, with no advance notice requirement. There are no unfunded commitments with respect to these investments.

Purchases and sales of investment securities are recorded on a trade date basis. Dividends are recorded on the ex-dividend date. Interest income is recorded on the accrual basis. Net appreciation (depreciation) includes the Plan's gains and losses on investments bought and sold as well as held during the year.

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts in the Plan’s financial statements. The most significant estimates relate to the value of investments. Actual results may differ from those estimates. Adjustments related to changes in estimates are reflected in the Plan's Statement of Changes in Net Assets Available for Benefits in the period in which those estimates changed.

3. Fair Value Measurements

The Company follows ASC Topic 820, Fair Value Measurement, which provides a consistent definition of fair value, focuses on exit price, prioritizes the use of market-based inputs over entity-specific inputs for measuring fair value and establishes a three-tier hierarchy for fair value measurements. This topic requires fair value measurements to be classified and disclosed in one of the following three categories:


			• Level 1: Unadjusted quoted prices from active markets that are accessible at the measurement date for identical asset.


			• Level 2: Inputs other than quoted prices in a non active market included within Level 1 that are observable for the asset or liability, either directly or indirectly.


			• Level 3: Unobservable inputs for the asset. Level 3 inputs include managements’ own assumption about the assumptions that market participants would use in pricing the asset (including assumptions about risk).

In some cases, a valuation technique used to measure fair value may include inputs from multiple levels of the fair value hierarchy. The lowest level of significant input determines the placement of the entire fair value measurement in the hierarchy.

The methods described above and in Note 2 may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. Furthermore, while the Company believes its valuation methods are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different fair value measurement at the reporting date. Investments are classified in their entirety based on the lowest level of input that is significant to the fair value measurement.

The following table sets forth by level, within the fair value hierarchy, a summary of the Plan’s investments measured at fair value on a recurring basis as of December 31, 2025:


	Level 1		Level 2		Level 3		Total
MillerKnoll, Inc. common stock	$	36,017,630	$	—	$	—	$	36,017,630
Mutual funds	215,140,970		—		—		215,140,970
Other investments measured at NAV (a)	—		—		—		1,289,824,400
Total investments at fair value	$	251,158,600	$	—	$	—	$	1,540,983,000

The following table sets forth by level, within the fair value hierarchy, a summary of the Plan’s investments measured at fair value on a recurring basis as of December 31, 2024:


	Level 1		Level 2		Level 3		Total
MillerKnoll, Inc. common stock	$	41,279,551	$	—	$	—	$	41,279,551
Mutual funds	281,567,020		—		—		281,567,020
Other investments measured at NAV (a)	—		—		—		1,095,131,915
Total investments at fair value	$	322,846,571	$	—	$	—	$	1,417,978,486

(a) In accordance with subtopic 820-10, certain investments that are measured at fair value using the NAV per share practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the Statement of Net Assets Available for Benefits.

4. Related Party and Party-in-Interest Transactions

A party-in-interest is defined under Department of Labor regulations as any fiduciary of the Plan, any party rendering service to the Plan, the employer, and certain others. The Company pays certain professional fees for the consultation and audit of the Plan.

The Plan investments include shares of mutual funds and collective trusts managed by the Trustee and shares of common stock of the Company. These transactions qualify as party-in-interest and related party transactions. During the year ended December 31, 2025, the Plan recorded income related to dividends from shares of Company common stock of $1,417,296. As of December 31, 2025, and 2024, the Plan owned 1,970,330 and 1,827,337 shares of Company common stock, respectively. Notes receivable from participants are also considered party-in interest transactions.

5. Income Tax Status

The Plan has received a determination letter from the Internal Revenue Service dated August 8, 2023, stating that the Plan is qualified under Section 401(a) of the Internal Revenue Code ("the Code") and the related trust is exempt from taxation. Once qualified, the Plan is required to operate in conformity with the Code to maintain its qualification. The Plan has been amended since receiving the determination letter. The Plan administrator believes the Plan is being operated in compliance with the applicable requirements of the Code and believes that the Plan is qualified and the related trust is tax exempt.

Accounting principles generally accepted in the United States of America require plan management to evaluate tax positions taken by the Plan and recognize a tax liability if it has taken an uncertain position that more likely than not would not be sustained upon examination by the IRS. The Plan is subject to routine audits by taxing jurisdictions; however, there are currently no audits for any tax periods in progress.

6. Risks and Uncertainties

Investment securities, in general, are exposed to various risks, such as interest rate, credit, liquidity, and overall market volatility risks. Due to the level of risk associated with certain investment securities, it is reasonably possible that changes in the values of investment securities will occur in the near term. Such changes could materially affect participants’ account balances and the amounts reported in the statements of net assets available for benefits. At December 31, 2025, and 2024, approximately 2% and 3%, respectively of the Plan’s assets were invested in MillerKnoll, Inc. common stock.

7. Subsequent Events

Subsequent events have been evaluated by management through June 29, 2026, the date these financial statements were available to be issued.

MillerKnoll Retirement Plan

Schedule H, Line 4i - Schedule of Assets (Held at End of Year)

EIN 38-0837640 Plan #002

December 31, 2025

(a)

(b)

(c)

(d)

(e)

Identity of Issuer, Borrower, Lessor, or Similar Party

Description of Investment, Including Maturity Date, Rate of Interest, Collateral, Par, or Maturity Value

Cost

Current Value

Common stock

MillerKnoll, Inc.

Common Stock (1,970,330 shares)

36,017,630

Mutual funds

Vanguard

Wellington Fund

50,313,821

Vanguard

Small Cap Growth Index Fund

47,225,070

Delaware

Small Cap Value Fund

24,476,037

Driehaus

Emerging Markets Growth Fund

5,193,112

Dodge & Cox

Total Income Fund

67,089,996

Calvert

U.S. Large Cap Core Responsible Index Fund

20,842,934

BlackRock

Black Rock Equity Dividend Fund I Class

—

215,140,970

(a)

(b)

(c)

(d)

(e)

Identity of Issuer, Borrower, Lessor, or Similar Party

Description of Investment, Including Maturity Date, Rate of Interest, Collateral, Par, or Maturity Value

Cost

Current Value

Collective trust funds

Harbor Funds

Harbor Capital Appreciation Fund

186,697,194

Columbia

Trust Dividend Income Fund

71,990,444

Vanguard

Retirement Income Trust I

20,304,487

Vanguard

Retirement 2020 Trust I

19,995,063

Vanguard

Retirement 2025 Trust I

60,293,448

Vanguard

Retirement 2030 Trust I

86,298,981

Vanguard

Retirement 2035 Trust I

102,245,805

Vanguard

Retirement 2040 Trust I

74,688,059

Vanguard

Retirement 2045 Trust I

74,073,774

Vanguard

Retirement 2050 Trust I

73,868,234

Vanguard

Retirement 2055 Trust I

56,568,477

Vanguard

Retirement 2060 Trust I

33,800,772

Vanguard

Retirement 2065 Trust I

11,687,463

Vanguard

Retirement 2070 Trust I

1,783,475

Great Gray Trust

EuroPacific Growth Fund

43,208,829

Putnam Fiduciary Trust Company

Stable Value Fund

103,660,188