LRMR SEC Form 4 filings
Larimar Therapeutics, Inc. Latest Insider Trading Activity
Our insider trading activity tracker for Larimar Therapeutics, Inc. shows 31 total open-market insider transactions for LRMR over the past 445 days. The latest displayed record by transaction date reports 4 purchases by Deerfield Mgmt L.P. (Larimar Therapeutics, Inc. Director,TenPercentOwner,Other) totaling 5,000,000 shares at a weighted-average price of $5.00 per share, with the latest transaction dated February 27, 2026. This page shows up to the 10 most recent SEC Form 4 filing records on a 6-hour delay. Sign up for real-time updates and access to 20 years of historic insider trading data.
Insider Trading For LRMR Charted on Daily Candles. Scroll left or zoom out to load earlier candles (up to 2 years).
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| Ticker | Filing Date | Transaction Date | Company | Insider | Title | Transaction | Trade Count | Shares | Avg. Price | Total Value | Position Size Change | SEC Filing |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. LRMR | 2026-03-02 | 2026-02-27 | Larimar Therapeutics, Inc. | Deerfield Mgmt L.P. | Director,TenPercentOwner,Other | Buy | 4 | 5,000,000 | $5.00 | $25,000,000.00 | 14.04% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. LRMR | 2026-03-02 | 2026-02-27 | Larimar Therapeutics, Inc. | Deerfield Mgmt Iv, L.P. | Director,TenPercentOwner,Other | Buy | 4 | 5,000,000 | $5.00 | $25,000,000.00 | 14.04% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. LRMR | 2026-03-02 | 2026-02-27 | Larimar Therapeutics, Inc. | Deerfield Partners, L.P. | Director,TenPercentOwner,Other | Buy | 4 | 5,000,000 | $5.00 | $25,000,000.00 | 14.04% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. LRMR | 2026-03-02 | 2026-02-27 | Larimar Therapeutics, Inc. | Deerfield Healthcare Innovations Fund, L.P. | Director,TenPercentOwner,Other | Buy | 4 | 5,000,000 | $5.00 | $25,000,000.00 | 14.04% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. LRMR | 2026-03-02 | 2026-02-27 | Larimar Therapeutics, Inc. | Deerfield Management Company, L.P. | Director,TenPercentOwner,Other | Buy | 4 | 5,000,000 | $5.00 | $25,000,000.00 | 14.04% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. LRMR | 2026-03-02 | 2026-02-27 | Larimar Therapeutics, Inc. | Thomas Frank E | Director | Buy | 1 | 5,000 | $5.00 | $25,000.00 | 71.43% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. LRMR | 2026-03-02 | 2026-02-27 | Larimar Therapeutics, Inc. | Sherman Jeffrey W | Director | Buy | 1 | 5,000 | $5.00 | $25,000.00 | 100.00% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. LRMR | 2025-08-04 | 2025-07-31 | Larimar Therapeutics, Inc. | Deerfield Private Design Fund Iv, L.P. | Director,TenPercentOwner,Other | Buy | 3 | 9,375,000 | $3.20 | $30,000,000.00 | 35.51% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. LRMR | 2025-08-04 | 2025-07-31 | Larimar Therapeutics, Inc. | Deerfield Healthcare Innovations Fund, L.P. | Director,TenPercentOwner,Other | Buy | 3 | 9,375,000 | $3.20 | $30,000,000.00 | 35.51% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. LRMR | 2025-08-04 | 2025-07-31 | Larimar Therapeutics, Inc. | Deerfield Mgmt L.P. | Director,TenPercentOwner,Other | Buy | 3 | 9,375,000 | $3.20 | $30,000,000.00 | 35.51% | View Filing |
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