UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): September 28, 2023

PTC THERAPEUTICS, INC.

(Exact Name of Company as Specified in Charter)


Delaware	001-35969	04-3416587
(State or Other Jurisdiction	(Commission	(IRS Employer
of Incorporation)	File Number)	Identification No.)


100 Corporate Court
South Plainfield, NJ		07080
(Address of Principal Executive Offices)		(Zip Code)

Registrant’s telephone number, including area code: (908) 222-7000

Not applicable

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:


Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, $0.001 par value per share	PTCT	Nasdaq Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.05. Costs Associated with Exit or Disposal Activities.

On September 28, 2023, PTC Therapeutics, Inc. (the “Company”) announced further strategic prioritization following the continued review of its portfolio that the Company began in May 2023. In connection with the strategic prioritization, on September 28, 2023, the Company committed to a reduction in workforce of approximately 25%, which will primarily affect employees in the United States, including those employees involved in early-stage research and gene therapy manufacturing and associated selling, general and administrative functions.

The Company plans to substantially complete the reduction in workforce by January 15, 2024. Affected employees will be offered separation benefits, including severance payments along with temporary healthcare coverage assistance and other benefits. The Company estimates that the employee severance and benefit costs along with required pre-termination associated payments and benefits will be approximately $21.0 million, substantially all of which are expected to be cash expenditures. The estimate of costs that the Company expects to incur, and the timing thereof, are subject to a number of assumptions and actual results may differ. The Company may also incur other charges or cash expenditures not currently contemplated due to events that may occur as a result of, or associated with, the reduction in workforce.

Item 7.01. Regulation FD Disclosure.

On September 28, 2023, the Company issued a press release regarding the strategic prioritization and associated reduction in workforce, furnished as Exhibit 99.1 to this Current Report on Form 8-K (this “Report”).

The information in this Item 7.01 of this Report, including Exhibit 99.1 shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such a filing. All website addresses given in this Report or incorporated herein by reference are for information only and are not intended to be an active link or to incorporate any website information into this Report.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits


Exhibit No.		Description
99.1		Press Release, dated September 28, 2023 issued by PTC Therapeutics, Inc.
104		The cover page from this Current Report on Form 8-K, formatted in Inline XBRL

Signature

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this Report to be signed on its behalf by the undersigned hereunto duly authorized.


	PTC Therapeutics, Inc.

Date: September 28, 2023	By:	/s/ Pierre Gravier
	Name:	Pierre Gravier
	Title:	Chief Financial Officer

PTC Therapeutics Inc. filed SEC Form 8-K: Costs Associated with Exit or Disposal Activities, Regulation FD Disclosure, Financial Statements and Exhibits