🕵️ Larimar Therapeutics, Inc. ($LRMR)
SEC insider & ownership activity, last 12 months · CIK 1374690 · every row links its SEC filing
Over the last 12 months insiders bought $55.7M with no open-market selling against it. James E. Flynn bought $55.0M (Jul–Feb). James E. Flynn trimmed 35.8% → 34.4%; Deerfield Management Company, L.P. trimmed 35.8% → 34.4%. No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
4 buyers, $55.7M (11 lots) · 0 sellers, $0 (0 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| James E. Flynn | 7 | $55.0M | 0 | – | Feb 27, 2026 |
| Hamilton Thomas Edward | 2 | $667K | 0 | – | Jul 6, 2026 |
| Frank E. Thomas | 1 | $25K | 0 | – | Feb 27, 2026 |
| Jeffrey W. Sherman | 1 | $25K | 0 | – | Feb 27, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| James E. Flynn | 34.4% | 13D | Feb 27, 2026 | filing ↗ | |
| Deerfield Management Company, L.P. | 34.4% | 13D | Feb 27, 2026 | filing ↗ | |
| Deerfield Private Design Fund III, L.P. | 10.2% | 13D | Feb 27, 2026 | filing ↗ | |
| Deerfield Private Design Fund IV, L.P. | 10.2% | 13D | Feb 27, 2026 | filing ↗ | |
| Deerfield MGMT III, L.P. | 10.2% | 13D | Feb 27, 2026 | filing ↗ | |
| Deerfield MGMT IV, L.P. | 10.2% | 13D | Feb 27, 2026 | filing ↗ | |
| Blue OWL Capital Holdings LP | 10.0% | 13G | May 14, 2026 | filing ↗ | |
| Janus Henderson Biotech Innovation Master Fund Ltd | 9.1% | 13G | May 14, 2025 | filing ↗ | |
| Deerfield MGMT HIF, L.P. | 7.9% | 13D | Feb 27, 2026 | filing ↗ | |
| Deerfield Healthcare Innovations Fund, L.P. | 7.9% | 13D | Feb 27, 2026 | filing ↗ | |
| Deerfield Partners, L.P. | 6.0% | 13D | Feb 27, 2026 | filing ↗ | |
| Deerfield MGMT, L.P. | 6.0% | 13D | Feb 27, 2026 | filing ↗ |
Planned insider sales (Form 144)
No sale notices filed in the last 12 months.
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Other events (8.01) | Jun 29, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 29, 2026 | filing ↗ |
| Shareholder vote (5.07) | May 19, 2026 | filing ↗ |
| Earnings (2.02) | May 14, 2026 | filing ↗ |
| Other events (8.01) | May 14, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 14, 2026 | filing ↗ |
| Earnings (2.02) | Mar 19, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 19, 2026 | filing ↗ |
| Other events (8.01) | Mar 9, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 9, 2026 | filing ↗ |
| Material agreement (1.01) | Feb 25, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 25, 2026 | filing ↗ |
| Other events (8.01) | Feb 24, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 24, 2026 | filing ↗ |
| Unregistered equity sale (3.02) | Jan 21, 2026 | filing ↗ |
| Charter/bylaw changes (5.03) | Jan 21, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 21, 2026 | filing ↗ |
| Earnings (2.02) | Jan 12, 2026 | filing ↗ |
| Other events (8.01) | Jan 12, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 12, 2026 | filing ↗ |
| Unregistered equity sale (3.02) | Dec 16, 2025 | filing ↗ |
| Charter/bylaw changes (5.03) | Dec 16, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 16, 2025 | filing ↗ |
| Other events (8.01) | Nov 10, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 10, 2025 | filing ↗ |
| Earnings (2.02) | Nov 5, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 5, 2025 | filing ↗ |
| Other events (8.01) | Oct 14, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 14, 2025 | filing ↗ |
| Other events (8.01) | Sep 29, 2025 | filing ↗ |