Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * BEN-MAIMON CAROLE 2. Issuer Name and Ticker or Trading Symbol Larimar Therapeutics, Inc. [LRMR] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) President and CEO (Last) (First) (Middle) C/O LARIMAR THERAPEUTICS, INC., THREE BALA PLAZA EAST, SUITE 506 3. Date of Earliest Transaction (Month/Day/Year) 11/11/2026 (Street) BALA CYNWYD, PA 19004 4. If Amendment, Date Original Filed (Month/Day/Year) 6. Individual or Joint/Group Filing (Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 11/11/2026 P 18,050(1) A $2.7675(2) 386,326 D Common Stock 31,155 I By Trust(3) Common Stock 31,155 I By Trust(4) Common Stock 31,156 I By Trust(5) Common Stock 31,156 I By Trust(6) Common Stock 31,156 I By Trust(7)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
BEN-MAIMON CAROLE C/O LARIMAR THERAPEUTICS, INC. THREE BALA PLAZA EAST, SUITE 506 BALA CYNWYD, PA 19004	X		President and CEO

Signatures

/s/ Jennifer Johansson, Attorney-in-fact		11/12/2026
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Each share is represented by a restricted stock unit ("RSU"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock upon settlement.
(2)	The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $2.765 to $2.77, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth herein.
(3)	Represents shares held by the Irrevocable Deed of Trust of Carole S. Ben-Maimon for the Benefit of Meadow Lainey Ben-Maimon ("Meadow Trust"), of which the Reporting Person serves as trustee. The Reporting Person disclaims Section 16 beneficial ownership of the shares held by the Meadow Trust except to the extent of her pecuniary interest therein, if any, and this report shall not be deemed to be an admission that she has beneficial ownership of such shares for Section 16 or any other purpose.
(4)	Represents shares held by the Irrevocable Deed of Trust of Carole S. Ben-Maimon for the Benefit of Olivia Liat Stein ("Olivia Trust"), of which the Reporting Person serves as trustee. The Reporting Person disclaims Section 16 beneficial ownership of the shares held by the Olivia Trust except to the extent of her pecuniary interest therein, if any, and this report shall not be deemed to be an admission that she has beneficial ownership of such shares for Section 16 or any other purpose.
(5)	Represents shares held by the Irrevocable Deed of Trust of Carole S. Ben-Maimon for the Benefit of Ella Bar Stein ("Ella Trust"), of which the Reporting Person serves as trustee. The Reporting Person disclaims Section 16 beneficial ownership of the shares held by the Ella Trust except to the extent of her pecuniary interest therein, if any, and this report shall not be deemed to be an admission that she has beneficial ownership of such shares for Section 16 or any other purpose.
(6)	Represents shares held by the Irrevocable Deed of Trust of Carole S. Ben-Maimon for the Benefit of Romi Aleeza Stein ("Romi Trust"), of which the Reporting Person serves as trustee. The Reporting Person disclaims Section 16 beneficial ownership of the shares held by the Romi Trust except to the extent of her pecuniary interest therein, if any, and this report shall not be deemed to be an admission that she has beneficial ownership of such shares for Section 16 or any other purpose.
(7)	Represents shares held by the Irrevocable Deed of Trust of Carole S. Ben-Maimon for the Benefit of Matzi Mark Ben-Maimon ("Matzi Trust"), of which the Reporting Person serves as trustee. The Reporting Person disclaims Section 16 beneficial ownership of the shares held by the Matzi Trust except to the extent of her pecuniary interest therein, if any, and this report shall not be deemed to be an admission that she has beneficial ownership of such shares for Section 16 or any other purpose.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure. Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.