Larimar Therapeutics Inc.

Last updated September 27, 2026

Organization details

Legal name
Larimar Therapeutics Inc.
Former names
Zafgen, INC.
Ownership
Public
Status
Active
Sector (GICS)
Health Care
SIC code
2834 — Pharmaceutical Preparations
Jurisdiction of incorporation
Delaware
Headquarters city
Bala Cynwyd
Headquarters state / province
Pennsylvania
Headquarters country
United States
Fiscal year end
December
Ticker symbol
LRMR
Primary stock exchange
Nasdaq

Identifiers

SEC CIK
0001374690
EIN
20-3857670
Wikidata ID
Q30269406

Board of directors

Chief executives

Carole Ben-Maimon · President and CEO
Dates unknown

Director election results

Annual meeting of May 19, 2026. Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.

Board connections

6 of this board's directors also sit on 5 other boards. 3 are in the same sector.

Network of Larimar Therapeutics Inc.'s board connections Tessera Defense and Homeland Security Inc. Tessera Defense and Ho... Annaly Capital Management Inc. Annaly Capital Managem... Century Therapeutics Inc. Century Therapeutics I... Spero Therapeutics Inc. Spero Therapeutics Inc... Xeris Biopharma Holdings Inc. Xeris Biopharma Holdin... Frank E. Thomas Frank E. Thomas James E. Flynn James E. Flynn Jeffrey W. Sherman Jeffrey W. Sherman Jonathan S. Leff Jonathan S. Leff Joseph Truitt Joseph Truitt Thomas Edward Hamilton Thomas Edward Hamilt... Larimar Therapeutics Inc.
Shared director Other board Same sector

Insider trades

All notable trades →

From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.

Bought, last 12 months
$25,717,000
8 purchases by 4 insiders
Sold, last 12 months
$0
0 sales by 0 insiders
Date Insider Transaction Shares Price Value
Sep 29, 2026 Harlow John B. Jr. Officer (President and COO) Grant or award +50,000 — —
Jul 6, 2026 Thomas Edward Hamilton Director Open-market purchase +50,000 $3.34 $167,000
Feb 27, 2026 Deerfield Mgmt HIF, L.P. Director, 10% owner, * Director by Deputization Open-market purchase +1,084,010 $5.00 $5,420,050
Feb 27, 2026 Thomas Edward Hamilton Director Open-market purchase +100,000 $5.00 $500,000
Feb 27, 2026 Frank E. Thomas Director Open-market purchase +5,000 $5.00 $25,000
Feb 27, 2026 Jeffrey W. Sherman Director Open-market purchase +5,000 $5.00 $25,000
Feb 27, 2026 Deerfield Mgmt HIF, L.P. Director, 10% owner, * Director by Deputization Open-market purchase +1,084,012 $5.00 $5,420,060
Feb 27, 2026 Deerfield Mgmt HIF, L.P. Director, 10% owner, * Director by Deputization Open-market purchase +831,978 $5.00 $4,159,890
Feb 27, 2026 Deerfield Mgmt HIF, L.P. Director, 10% owner, * Director by Deputization Open-market purchase +2,000,000 $5.00 $10,000,000
Jan 26, 2026 Shankar Gopi Officer (Chief Development Officer) Grant or award +25,637 — —
Jan 26, 2026 Clayton Russell Officer (Chief Medical Officer) Grant or award +25,637 — —
Jan 26, 2026 Carole Ben-Maimon Director, Officer (President and CEO) Grant or award +100,100 — —
Jan 26, 2026 Celano Michael Officer (Chief Financial Officer) Grant or award +37,604 — —
Jul 31, 2025 Deerfield Mgmt HIF, L.P. Director, 10% owner, * Director by Deputization Open-market purchase +3,387,529 $3.20 $10,840,093
Jul 31, 2025 Deerfield Mgmt HIF, L.P. Director, 10% owner, * Director by Deputization Open-market purchase +3,387,539 $3.20 $10,840,125

Organizations in the same sector, closest in location and size first.

Questions about Larimar Therapeutics Inc.

Who is the CEO of Larimar Therapeutics Inc.?

Carole Ben-Maimon is Larimar Therapeutics Inc.'s President and CEO.

How many directors are on Larimar Therapeutics Inc.'s board?

Larimar Therapeutics Inc.'s board has 7 directors: Carole Ben-Maimon, Frank E. Thomas, James E. Flynn, Jeffrey W. Sherman, Jonathan S. Leff, Joseph Truitt and Thomas Edward Hamilton.

Are Larimar Therapeutics Inc. insiders buying or selling shares?

Over the last 12 months, Larimar Therapeutics Inc. insiders bought $25.7 million of shares in 8 purchases and made no open-market sales on the open market, as reported to the SEC on Forms 4 and 5.

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