🕵️ Foghorn Therapeutics Inc. ($FHTX)
SEC insider & ownership activity, last 12 months · CIK 1822462 · every row links its SEC filing
Insiders were quiet over the last 12 months – no open-market buys or sells. No red-flag 8-Ks in the window.
Insider flow
0 buyers, $0 (0 lots) · 0 sellers, $0 (0 lots)
No open-market insider transactions in the last 12 months.
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Noubar Afeyan | 27.2% | 13D | Jan 9, 2026 | filing ↗ | |
| Flagship Ventures Fund V General Partner LLC | 15.9% | 13D | Jan 9, 2026 | filing ↗ | |
| Flagship Ventures Fund V, L.P. | 15.9% | 13D | Jan 9, 2026 | filing ↗ | |
| FMR LLC | 11.6% | 13G | May 6, 2026 | filing ↗ | |
| Abigail P. Johnson | 11.6% | 13G | May 6, 2026 | filing ↗ | |
| Flagship Pioneering, LLC | 10.0% | 13D | Jan 9, 2026 | filing ↗ | |
| BVF Partners L P/IL | 10.0% | 13G | May 15, 2026 | filing ↗ | |
| BVF INC/IL | 10.0% | 13G | May 15, 2026 | filing ↗ | |
| Mark N. Lampert | 10.0% | 13G | May 15, 2026 | filing ↗ | |
| BVF GP Holdings LLC | 9.2% | 13G | May 15, 2026 | filing ↗ | |
| Deerfield MGMT, L.P. | 8.6% | 13G | May 14, 2026 | filing ↗ | |
| Deerfield Management Company, L.P. | 8.6% | 13G | May 14, 2026 | filing ↗ | |
| Deerfield Partners, L.P. | 8.6% | 13G | May 14, 2026 | filing ↗ | |
| James E. Flynn | 8.6% | 13G | May 14, 2026 | filing ↗ | |
| Flagship Pioneering Fund VII, L.P. | 7.1% | 13D | Jan 9, 2026 | filing ↗ | |
| Flagship Pioneering Fund VII General Partner LLC | 7.1% | 13D | Jan 9, 2026 | filing ↗ | |
| Biotechnology Value Fund L P | 5.4% | 13G | May 15, 2026 | filing ↗ | |
| BVF I GP LLC | 5.4% | 13G | May 15, 2026 | filing ↗ |
Planned insider sales (Form 144)
No sale notices filed in the last 12 months.
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Shareholder vote (5.07) | Jun 24, 2026 | filing ↗ |
| Earnings (2.02) | May 7, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | May 7, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 7, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Apr 21, 2026 | filing ↗ |
| Other events (8.01) | Apr 21, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 21, 2026 | filing ↗ |
| Earnings (2.02) | Mar 11, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Mar 11, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 11, 2026 | filing ↗ |
| Officer/director changes (5.02) | Feb 23, 2026 | filing ↗ |
| Other events (8.01) | Feb 23, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 23, 2026 | filing ↗ |
| Earnings (2.02) | Jan 9, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jan 9, 2026 | filing ↗ |
| Other events (8.01) | Jan 9, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 9, 2026 | filing ↗ |
| Officer/director changes (5.02) | Dec 3, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Nov 7, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 7, 2025 | filing ↗ |
| Earnings (2.02) | Nov 5, 2025 | filing ↗ |
| Officer/director changes (5.02) | Nov 5, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Nov 5, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 5, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Oct 30, 2025 | filing ↗ |
| Other events (8.01) | Oct 30, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 30, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Sep 2, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 2, 2025 | filing ↗ |
| Earnings (2.02) | Aug 5, 2025 | filing ↗ |