Larimar Therapeutics, Inc. (LRMR) Insider Ownership

Historic Ownership Trends

There are no significant Insider Shareholders in Larimar Therapeutics as of December 12, 2025.

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares Report Date
James E Flynn 7,321,129 04 Aug, 2025
Thomas Edward Hamilton 507,590 20 Sep, 2022
Carole Ben-Maimon President And CEO 387,208 24 Jan, 2025
Michael Celano Chief Financial Officer 178,181 24 Jan, 2025
Gopi Shankar Chief Development Officer 50,806 24 Jan, 2025
Russell Clayton Chief Medical Officer 45,806 24 Jan, 2025
Joseph Truitt 2,750 18 May, 2023
Frank E Thomas 2,000 15 Feb, 2024

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
31 Jul, 2025 James E Flynn Common Stock A 3,387,529 $3.20 9,538,918 I P
31 Jul, 2025 James E Flynn Common Stock A 3,387,539 $3.20 9,538,945 I P
31 Jul, 2025 James E Flynn Common Stock A 2,599,932 $3.20 7,321,129 I P
22 Jan, 2025 Russell Clayton Common Stock A 23,306 $0.00 45,806 D A
22 Jan, 2025 Michael Celano - - 178,181 D
22 Jan, 2025 Michael Celano Common Stock A 34,185 $0.00 178,181 D A
22 Jan, 2025 Gopi Shankar Common Stock A 23,306 $0.00 50,806 D A
22 Jan, 2025 Carole Ben-Maimon Common Stock A 91,000 $0.00 387,208 D A
16 Feb, 2024 James E Flynn - - 6,151,389 I
16 Feb, 2024 James E Flynn Common Stock A 1,430,206 $8.74 6,151,389 I P
16 Feb, 2024 James E Flynn Common Stock A 1,430,206 $8.74 6,151,406 I P
16 Feb, 2024 James E Flynn - - 6,151,406 I
16 Feb, 2024 James E Flynn Common Stock A 1,430,205 $8.74 4,207,982 I P
16 Feb, 2024 James E Flynn - - 4,207,982 I
14 Feb, 2024 Frank E Thomas Common Stock A 2,000 $11.00 2,000 D P
14 Feb, 2024 Frank E Thomas - - 2,000 D
17 Jan, 2024 Gopi Shankar Common Stock A 22,500 $0.00 27,500 D A
17 Jan, 2024 Michael Celano Common Stock A 31,250 $0.00 143,996 D A
17 Jan, 2024 Carole Ben-Maimon Common Stock A 66,125 $0.00 332,954 D A
17 Jan, 2024 Russell Clayton Common Stock A 22,500 $0.00 22,500 D A