[8-K] Larimar Therapeutics, Inc. Reports Material Event

Rhea-AI Filing Summary

Larimar Therapeutics, Inc. filed an 8-K announcing it furnished a press release with financial results and operational highlights for the third quarter ended September 30, 2025. The press release is attached as Exhibit 99.1.

The information disclosed under Item 2.02, including Exhibit 99.1, is being furnished and is not deemed filed under the Exchange Act.

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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): November 05, 2025

Larimar Therapeutics, Inc.

(Exact name of Registrant as Specified in Its Charter)

Delaware			001-36510	20-3857670
(State or Other Jurisdiction of Incorporation)			(Commission File Number)	(IRS Employer Identification No.)
Three Bala Plaza East
Bala Cynwyd, Pennsylvania				19004
(Address of Principal Executive Offices)				(Zip Code)

Registrant’s Telephone Number, Including Area Code: (844) 511-9056

(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:

☐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, par value $0.001 per share		LRMR		Nasdaq Global 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 2.02 Results of Operations and Financial Condition.

On November 5, 2025, Larimar Therapeutics, Inc. (the “Company”) announced its financial results and operational highlights for the third quarter ended September 30, 2025. A copy of the press release is being furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

The information furnished pursuant to this Item 2.02, including Exhibit 99.1 attached hereto, is intended to be furnished and 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 filing.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

Below is a list of exhibits included with this Current Report on Form 8-K.

Exhibit No.		Document
99.1		Press Release issued by Larimar Therapeutics, Inc. on November 5, 2025*
104		Cover Page Interactive Data File (embedded within the Inline XBRL document)

* Furnished herewith

SIGNATURES

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.

			Larimar Therapeutics, Inc.
Date:	November 5, 2025	By:	/s/ Carole S. Ben-Maimon, M.D.
			Name: Carole S. Ben-Maimon, M.D. Title: President and Chief Executive Officer

FAQ

What did LRMR announce in this 8-K?

Larimar furnished a press release with financial results and operational highlights for the quarter ended September 30, 2025.

Which period does the update cover for LRMR?

The third quarter ended September 30, 2025.

How is the information in Item 2.02 treated for LRMR?

It is being furnished and is not deemed filed under the Exchange Act.

Where can I find the LRMR press release?

It is attached as Exhibit 99.1 to the 8-K.

What other exhibit is included with LRMR’s filing?

Exhibit 104: the Cover Page Interactive Data File (Inline XBRL).

When was LRMR’s 8-K signed?

It was dated November 5, 2025 and signed by the President and CEO.