Arkolith/Insider Trading/LRMR

LRMR Insider Trading

Larimar Therapeutics, Inc. · full profile →Last filing Jul 6, 2026
Net Buying · 180d
Open-Market Buys (180d)
$25.7M
4 insiders
Open-Market Sells (180d)
$0
0 insiders
Net Insider Flow
$25.7M
open market, 180d
Reporting Insiders
4
8 P/S transactions
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Build on these Form 4 transactions

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Recent Form 4 Transactions

95 shown
DateInsiderRoleActionSharesPriceValue
Jul 6, 2026Hamilton Thomas EdwardDirectorBuy(P)50K$3.34$167K
May 19, 2026Hamilton Thomas EdwardDirectorGrant(A)55K—$0
May 19, 2026Flynn James EDirector, 10% OwnerGrant(A)55K—$0
May 19, 2026Leff Jonathan SDirectorGrant(A)55K—$0
May 19, 2026Thomas Frank EDirectorGrant(A)55K—$0
May 19, 2026Truitt JosephDirectorGrant(A)55K—$0
May 19, 2026Sherman Jeffrey WDirectorGrant(A)55K—$0
Feb 27, 2026Sherman Jeffrey WDirectorBuy(P)5K$5.00$25K
Feb 27, 2026Thomas Frank EDirectorBuy(P)5K$5.00$25K
Feb 27, 2026Hamilton Thomas EdwardDirectorBuy(P)100K$5.00$500K
Feb 27, 2026Deerfield Mgmt HIF, L.P.Director, 10% OwnerBuy(P)1.1M$5.00$5.4M
Feb 27, 2026Deerfield Mgmt HIF, L.P.Director, 10% OwnerBuy(P)2.0M$5.00$10.0M
Feb 27, 2026Deerfield Mgmt HIF, L.P.Director, 10% OwnerBuy(P)832K$5.00$4.2M
Feb 27, 2026Deerfield Mgmt HIF, L.P.Director, 10% OwnerBuy(P)1.1M$5.00$5.4M
Jan 26, 2026Celano MichaelChief Financial OfficerGrant(A)38K—$0
Jan 26, 2026Celano MichaelChief Financial OfficerGrant(A)226K—$0
Jan 26, 2026Ben-Maimon CarolePresident and CEO, DirectorGrant(A)100K—$0
Jan 26, 2026Ben-Maimon CarolePresident and CEO, DirectorGrant(A)601K—$0
Jan 26, 2026Clayton RussellChief Medical OfficerGrant(A)26K—$0
Jan 26, 2026Clayton RussellChief Medical OfficerGrant(A)154K—$0
Jan 26, 2026Shankar GopiChief Development OfficerGrant(A)26K—$0
Jan 26, 2026Shankar GopiChief Development OfficerGrant(A)154K—$0
Jul 31, 2025Deerfield Mgmt HIF, L.P.Director, 10% OwnerBuy(P)3.4M$3.20$10.8M
Jul 31, 2025Deerfield Mgmt HIF, L.P.Director, 10% OwnerBuy(P)3.4M$3.20$10.8M
Jul 31, 2025Deerfield Mgmt HIF, L.P.Director, 10% OwnerBuy(P)2.6M$3.20$8.3M
May 13, 2025Leff Jonathan SDirectorGrant(A)19K—$0
May 13, 2025Thomas Frank EDirectorGrant(A)19K—$0
May 13, 2025Hamilton Thomas EdwardDirectorGrant(A)19K—$0
May 13, 2025Truitt JosephDirectorGrant(A)19K—$0
May 13, 2025Sherman Jeffrey WDirectorGrant(A)19K—$0
May 13, 2025Deerfield Management Company, L.P. (Series C)Director, 10% OwnerGrant(A)19K—$0
Jan 22, 2025Celano MichaelChief Financial OfficerGrant(A)34K—$0
Jan 22, 2025Celano MichaelChief Financial OfficerGrant(A)205K—$0
Jan 22, 2025Ben-Maimon CarolePresident and CEO, DirectorGrant(A)91K—$0
Jan 22, 2025Ben-Maimon CarolePresident and CEO, DirectorGrant(A)546K—$0
Jan 22, 2025Clayton RussellChief Medical OfficerGrant(A)23K—$0
Jan 22, 2025Clayton RussellChief Medical OfficerGrant(A)140K—$0
Jan 22, 2025Shankar GopiChief Development OfficerGrant(A)23K—$0
Jan 22, 2025Shankar GopiChief Development OfficerGrant(A)140K—$0
May 29, 2024Hamilton Thomas EdwardDirectorGrant(A)19K—$0
May 29, 2024Truitt JosephDirectorGrant(A)19K—$0
May 29, 2024Sherman Jeffrey WDirectorGrant(A)19K—$0
May 29, 2024Leff Jonathan SDirectorGrant(A)19K—$0
May 29, 2024Thomas Frank EDirectorGrant(A)19K—$0
May 29, 2024Flynn James EDirector, 10% OwnerGrant(A)19K—$0
Feb 16, 2024Hamilton Thomas EdwardDirectorBuy(P)57K$8.74$500K
Feb 16, 2024Deerfield Mgmt L.P.Director, 10% OwnerBuy(P)1.4M$8.74$12.5M
Feb 16, 2024Deerfield Mgmt L.P.Director, 10% OwnerBuy(P)1.4M$8.74$12.5M
Feb 16, 2024Deerfield Mgmt L.P.Director, 10% OwnerBuy(P)1.4M$8.74$12.5M
Feb 14, 2024Thomas Frank EDirectorBuy(P)2K$11.00$22K
Jan 17, 2024Ben-Maimon CarolePresident and CEO, DirectorGrant(A)66K—$0
Jan 17, 2024Ben-Maimon CarolePresident and CEO, DirectorGrant(A)397K—$0
Jan 17, 2024Clayton RussellChief Medical OfficerGrant(A)23K—$0
Jan 17, 2024Clayton RussellChief Medical OfficerGrant(A)135K—$0
Jan 17, 2024Celano MichaelChief Financial OfficerGrant(A)31K—$0
Jan 17, 2024Celano MichaelChief Financial OfficerGrant(A)188K—$0
Jan 17, 2024Shankar GopiChief Development OfficerGrant(A)23K—$0
Jan 17, 2024Shankar GopiChief Development OfficerGrant(A)135K—$0
Dec 7, 2023Shankar GopiChief Development OfficerBuy(P)5K$3.73$19K
Oct 3, 2023Sherman Jeffrey WDirectorGrant(A)17K—$0
Jul 17, 2023Clayton RussellChief Medical OfficerGrant(A)180K—$0
May 17, 2023Truitt JosephDirectorBuy(P)3K$3.73$10K
May 17, 2023Ben-Maimon CarolePresident and CEO, DirectorBuy(P)5K$3.71$19K
May 17, 2023Celano MichaelChief Financial OfficerBuy(P)5K$3.73$19K
May 9, 2023Thomas Frank EDirectorGrant(A)8K—$0
May 9, 2023Leff Jonathan SDirectorGrant(A)8K—$0
May 9, 2023Hamilton Thomas EdwardDirectorGrant(A)8K—$0
May 9, 2023Truitt JosephDirectorGrant(A)8K—$0
May 9, 2023Deerfield Management Company, L.P. (Series C)Director, 10% OwnerGrant(A)8K—$0
Feb 7, 2023Shankar GopiChief Development OfficerGrant(A)180K—$0
Jan 31, 2023Ben-Maimon CarolePresident and CEO, DirectorGrant(A)205K—$0
Jan 31, 2023Ben-Maimon CarolePresident and CEO, DirectorGrant(A)325K—$0
Jan 31, 2023Celano MichaelChief Financial OfficerGrant(A)76K—$0
Jan 31, 2023Celano MichaelChief Financial OfficerGrant(A)120K—$0
Sep 16, 2022Ben-Maimon CarolePresident and CEO, DirectorBuy(P)32K$3.15$100K
Sep 16, 2022Celano MichaelChief Financial OfficerBuy(P)32K$3.15$100K
Sep 16, 2022Hamilton Thomas EdwardDirectorBuy(P)317K$3.15$1000K
Sep 16, 2022Deerfield Mgmt HIF, L.P.Director, 10% OwnerBuy(P)2.8M$3.15$8.7M
Sep 16, 2022Deerfield Mgmt HIF, L.P.Director, 10% OwnerBuy(P)2.8M$3.15$8.7M
Sep 16, 2022Deerfield Mgmt HIF, L.P.Director, 10% OwnerBuy(P)2.8M$3.15$8.7M
Sep 16, 2022Deerfield Mgmt HIF, L.P.Director, 10% OwnerBuy(P)2.8M$3.15$8.7M
May 10, 2022Thomas Frank EDirectorGrant(A)8K—$0
May 10, 2022Leff Jonathan SDirectorGrant(A)8K—$0
May 10, 2022Hamilton Thomas EdwardDirectorGrant(A)8K—$0
May 10, 2022Barrett PeterDirectorGrant(A)8K—$0
May 10, 2022Truitt JosephDirectorGrant(A)8K—$0
May 10, 2022Celano MichaelChief Financial OfficerGrant(A)20K—$0
May 10, 2022Ben-Maimon CarolePresident and CEO, DirectorGrant(A)40K—$0
May 10, 2022Flynn James EDirector, 10% OwnerGrant(A)8K—$0
Jan 18, 2022Ben-Maimon CarolePresident and CEO, DirectorGrant(A)182K—$0
Jan 18, 2022Celano MichaelChief Financial OfficerGrant(A)80K—$0
Jun 30, 2021Deerfield Mgmt IV, L.P.Director, 10% OwnerBuy(P)229K$8.75$2.0M
Jun 30, 2021Deerfield Mgmt IV, L.P.Director, 10% OwnerBuy(P)229K$8.75$2.0M
Jun 30, 2021Deerfield Mgmt IV, L.P.Director, 10% OwnerBuy(P)229K$8.75$2.0M
Jun 30, 2021Hamilton Thomas EdwardDirectorBuy(P)57K$8.75$496K

Data Source

Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.

Coverage: Form 4 filings indexed 2021-03-29 → 2026-07-11. Earlier history is backfilling; this window widens as it deepens.

Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).