InsiderFlow

Larimar Therapeutics, Inc.

$4.46-0.31 (-6.48%)

Prev Close

$4.77

Open

$4.87

High

$5.01

Low

$4.45

Volume

3.36M

Market Cap

$480.2M

P/E

Div Yield

Over the past 12 months, insider activity at Larimar Therapeutics, Inc. (LRMR) has been exclusively buying, with 5 insider purchases totaling $55.55M and 0 insider sales totaling $0.00. The most recent insider transaction was by Flynn James E (director, 10 percent owner, other: * Director by Deputization), who purchased $25.00M worth of shares on Mar 2, 2026. Larimar Therapeutics, Inc. operates in the Healthcare sector, within the Biotechnology industry, with a market cap of $480.2M.

Buys (12M)

5

$55.55M

Sells (12M)

0

$0.00

Net Activity

Net Buyer

$55.55M

Active Insiders

4

last 12 mo

LRMR Price Chart

LRMR Insider Trading Activity

DateInsiderRoleTypeSharesAvg PriceValueShares After
Mar 2, 2026Flynn James Edirector, 10 percent owner, other: * Director by DeputizationBuy5,000,000$5.00$25.00M10,623,000
Mar 2, 2026Hamilton Thomas EdwarddirectorBuy100,000$5.00$500.0K664,798
Mar 2, 2026SHERMAN JEFFREY WdirectorBuy5,000$5.00$25.0K5,000
Mar 2, 2026THOMAS FRANK EdirectorBuy5,000$5.00$25.0K7,000
Jul 31, 2025Flynn James EDirectorBuy9,375,000$3.20$30.00M0

LRMR Insider Buying Activity

The following table shows recent insider purchases of Larimar Therapeutics, Inc. (LRMR) stock reported via SEC Form 4 filings.

DateInsiderRoleTypeSharesAvg PriceValueShares After
Mar 2, 2026Flynn James Edirector, 10 percent owner, other: * Director by DeputizationBuy5,000,000$5.00$25.00M10,623,000
Mar 2, 2026Hamilton Thomas EdwarddirectorBuy100,000$5.00$500.0K664,798
Mar 2, 2026SHERMAN JEFFREY WdirectorBuy5,000$5.00$25.0K5,000
Mar 2, 2026THOMAS FRANK EdirectorBuy5,000$5.00$25.0K7,000
Jul 31, 2025Flynn James EDirectorBuy9,375,000$3.20$30.00M0

LRMR Insider Selling Activity

The following table shows recent insider sales of Larimar Therapeutics, Inc. (LRMR) stock reported via SEC Form 4 filings.

No insider selling activity found for LRMR in the last 12 months.

LRMR Insiders

Flynn James E

director, 10 percent owner, other: * Director by Deputization

Bought $25.00M
4 tradesLast: Feb 27, 2026
Hamilton Thomas Edward

director

Bought $500.0K
1 tradesLast: Feb 27, 2026
SHERMAN JEFFREY W

director

Bought $25.0K
1 tradesLast: Feb 27, 2026
THOMAS FRANK E

director

Bought $25.0K
1 tradesLast: Feb 27, 2026
Flynn James E

Director

Bought $30.00M
3 tradesLast: Jul 31, 2025