Foghorn Therapeutics Inc.
FHTXHealthcare|Biotechnology|US
$1.87
-0.04 (-1.84%)
Cash / Share
$2.37
Ownership Breakdown
43.1%
Float
59.4M
Shares Outstanding
25.6M
Float Shares
Major Holders (26)
Combined: 236.3%
Holders of 5%+ from their latest Schedule 13D/13G filing in the last two years. Percentages are as of each filing date.
| Holder | Type | % of Class | Shares | Filed | Filing |
|---|---|---|---|---|---|
| Noubar Afeyan | Individual | 27.20% | 20,774,885 | Jan 13, 2026 | 13D/G |
| Flagship Ventures Fund V, L.P. | Partnership | 15.90% | 9,330,878 | Jan 13, 2026 | 13D/G |
| Flagship Ventures Fund V General Partner LLC | Other | 15.90% | 9,330,878 | Jan 13, 2026 | 13D/G |
| Lampert Mark N | Individual | 14.30% | 8,507,000 | Oct 5, 2026 | 13D/G |
| BVF Inc/Il | Corporation | 14.30% | 8,507,000 | Oct 5, 2026 | 13D/G |
| BVF Partners L P/Il | IA, PN | 14.30% | 8,507,000 | Oct 5, 2026 | 13D/G |
| BVF GP Holdings LLC | Other | 13.00% | 7,726,910 | Oct 5, 2026 | 13D/G |
| FMR LLC | Holding company | 11.60% | 6,792,356 | May 6, 2026 | 13D/G |
| Abigail P. Johnson | Individual | 11.60% | 6,792,356 | May 6, 2026 | 13D/G |
| Flagship Pioneering, LLC | Other | 10.00% | 9,952,566 | Jan 13, 2026 | 13D/G |
| Deerfield Mgmt, L.P. | Partnership | 8.64% | 5,139,523 | May 14, 2026 | 13D/G |
| Deerfield Management Company, L.P. | Partnership | 8.64% | 5,139,523 | May 14, 2026 | 13D/G |
| Deerfield Partners, L.P. | Partnership | 8.64% | 5,139,523 | May 14, 2026 | 13D/G |
| James E. Flynn | Individual | 8.64% | 5,139,523 | May 14, 2026 | 13D/G |
| BVF I GP LLC | Other | 7.60% | 4,494,462 | Oct 5, 2026 | 13D/G |
| Biotechnology Value Fund L P | Partnership | 7.60% | 4,494,462 | Oct 5, 2026 | 13D/G |
| Flagship Pioneering Fund VII, L.P. | Partnership | 7.10% | 6,285,851 | Jan 13, 2026 | 13D/G |
| Flagship Pioneering Fund VII General Partner LLC | Other | 7.10% | 6,285,851 | Jan 13, 2026 | 13D/G |
| BVF II GP LLC | Other | 5.40% | 3,232,448 | Oct 5, 2026 | 13D/G |
| Biotechnology Value Fund II LP | Partnership | 5.40% | 3,232,448 | Oct 5, 2026 | 13D/G |
| Flagship Pioneering Special Opportunities Fund II, L.P. | Partnership | 3.20% | 3,666,715 | Jan 13, 2026 | 13D/G |
| Flagship Pioneering Special Opportunities Fund II General Partner LLC | Other | 3.20% | 3,666,715 | Jan 13, 2026 | 13D/G |
| Flagship Ventures Opportunities Fund I, L.P. | Partnership | 2.50% | 1,491,441 | Jan 13, 2026 | 13D/G |
| Flagship Ventures Opportunities Fund I General Partner LLC | Other | 2.50% | 1,491,441 | Jan 13, 2026 | 13D/G |
| BVF Partners OS Ltd. | Corporation | 1.00% | 619,258 | Oct 5, 2026 | 13D/G |
| Biotechnology Value Trading Fund OS LP | Partnership | 1.00% | 619,258 | Oct 5, 2026 | 13D/G |
Insider Trades (100)
Last 4 quarters: 8,367,547 acquired · 604,611 disposed
| Insider | Position | Date | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| BVF PARTNERS L P/IL | 10 percent owner | Oct 1, 2026 | OTHER | 0 | — | — | Form 4 |
| BVF PARTNERS L P/IL | 10 percent owner | Oct 1, 2026 | OTHER | 0 | — | — | Form 4 |
| BVF PARTNERS L P/IL | 10 percent owner | Oct 1, 2026 | OTHER | 0 | — | — | Form 4 |
| BVF PARTNERS L P/IL | 10 percent owner | Oct 1, 2026 | OTHER | 313,925 | — | — | Form 4 |
| BVF PARTNERS L P/IL | 10 percent owner | Oct 1, 2026 | OTHER | 109,394 | — | — | Form 4 |
| BVF PARTNERS L P/IL | 10 percent owner | Oct 1, 2026 | OTHER | 109,394 | — | — | Form 4 |
| Lynch Thomas J. Jr. | director | Jun 24, 2026 | AWARD | 28,000 | $4.08 | $114.2K | Form 4 |
| Duty Stuart | director | Jun 24, 2026 | AWARD | 28,000 | $4.08 | $114.2K | Form 4 |
| Biller Scott | director | Jun 24, 2026 | AWARD | 28,000 | $4.08 | $114.2K | Form 4 |
| Gallagher Neil | director | Jun 24, 2026 | AWARD | 28,000 | $4.08 | $114.2K | Form 4 |
| Mendelsohn Michael | director | Jun 24, 2026 | AWARD | 28,000 | $4.08 | $114.2K | Form 4 |
| SMITH IAN F | director | Jun 24, 2026 | AWARD | 28,000 | $4.08 | $114.2K | Form 4 |
| GILL SIMBA | director | Jun 24, 2026 | AWARD | 28,000 | $4.08 | $114.2K | Form 4 |
| PARSHALL B LYNNE | director | Jun 24, 2026 | AWARD | 28,000 | $4.08 | $114.2K | Form 4 |
| Cole Douglas G. | director | Jun 24, 2026 | AWARD | 28,000 | $4.08 | $114.2K | Form 4 |
| GOTTSCHALK ADRIAN | director, officer: Chief Executive Officer | Apr 10, 2026 | GIFT | 59,208 | — | — | Form 4 |
| GOTTSCHALK ADRIAN | director, officer: Chief Executive Officer | Apr 10, 2026 | GIFT | 59,208 | — | — | Form 4 |
| GOTTSCHALK ADRIAN | director, officer: Chief Executive Officer | Apr 9, 2026 | GIFT | 47,497 | — | — | Form 4 |
| GOTTSCHALK ADRIAN | director, officer: Chief Executive Officer | Apr 9, 2026 | GIFT | 47,497 | — | — | Form 4 |
| Maynard Ryan D | Chief Financial Officer | Feb 23, 2026 | AWARD | 400,000 | $5.75 | $2.3M | Form 4 |
| Maynard Ryan D | Feb 23, 2026 | OTHER | 0 | — | — | Form 4 | |
| GOTTSCHALK ADRIAN | director, officer: Chief Executive Officer | Feb 5, 2026 | AWARD | 1,075,000 | $5.23 | $5.6M | Form 4 |
| Costa Carlos | Chief People Officer | Jan 30, 2026 | AWARD | 230,000 | $5.71 | $1.3M | Form 4 |
| LaCascia Michael | Chief Legal Officer | Jan 30, 2026 | AWARD | 295,000 | $5.71 | $1.7M | Form 4 |
| Cardama Alfonso Quintas | Chief Medical Officer | Jan 30, 2026 | AWARD | 300,000 | $5.71 | $1.7M | Form 4 |
| Rivkin Anna | Chief Business Officer | Jan 30, 2026 | AWARD | 165,000 | $5.71 | $942.1K | Form 4 |
| Bellon Steven F. | Chief Scientific Officer | Jan 30, 2026 | AWARD | 300,000 | $5.71 | $1.7M | Form 4 |
| Flagship Pioneering, LLC | director, 10 percent owner: | Jan 13, 2026 | AWARD | 2,235,468 | $0.00 | $223.55 | Form 4 |
| Flagship Pioneering, LLC | director, 10 percent owner: | Jan 13, 2026 | AWARD | 1,117,734 | $13.42 | $15.0M | Form 4 |
| Flagship Pioneering, LLC | director, 10 percent owner: | Jan 13, 2026 | AWARD | 1,117,734 | $20.13 | $22.5M | Form 4 |
| Humer Kristian | Nov 14, 2025 | OTHER | 0 | — | — | Form 4 | |
| SMITH IAN F | director | Jun 17, 2025 | AWARD | 25,000 | $4.79 | $119.8K | Form 4 |
| PARSHALL B LYNNE | director | Jun 17, 2025 | AWARD | 25,000 | $4.79 | $119.8K | Form 4 |
| Mendelsohn Michael | director | Jun 17, 2025 | AWARD | 25,000 | $4.79 | $119.8K | Form 4 |
| Lynch Thomas J. Jr. | director | Jun 17, 2025 | AWARD | 25,000 | $4.79 | $119.8K | Form 4 |
| GILL SIMBA | director | Jun 17, 2025 | AWARD | 25,000 | $4.79 | $119.8K | Form 4 |
| Biller Scott | director | Jun 17, 2025 | AWARD | 25,000 | $4.79 | $119.8K | Form 4 |
| Cole Douglas G. | director | Jun 17, 2025 | AWARD | 25,000 | $4.79 | $119.8K | Form 4 |
| Gallagher Neil | director | May 1, 2025 | AWARD | 50,000 | $4.16 | $208.0K | Form 4 |
| Duty Stuart | director | May 1, 2025 | AWARD | 50,000 | $4.16 | $208.0K | Form 4 |
| Gallagher Neil | May 1, 2025 | OTHER | 0 | — | — | Form 4 | |
| Duty Stuart | May 1, 2025 | OTHER | 0 | — | — | Form 4 | |
| GOTTSCHALK ADRIAN | director, officer: Chief Executive Officer | Apr 25, 2025 | GIFT | 300,000 | — | — | Form 4 |
| GOTTSCHALK ADRIAN | director, officer: Chief Executive Officer | Apr 25, 2025 | GIFT | 300,000 | — | — | Form 4 |
| GOTTSCHALK ADRIAN | director, officer: Chief Executive Officer | Apr 9, 2025 | GIFT | 197,906 | — | — | Form 4 |
| GOTTSCHALK ADRIAN | director, officer: Chief Executive Officer | Apr 9, 2025 | GIFT | 197,906 | — | — | Form 4 |
| Cardama Alfonso Quintas | Chief Medical Officer | Jan 22, 2025 | AWARD | 125,000 | $4.37 | $546.3K | Form 4 |
| Humer Kristian | Chief Financial Officer | Jan 22, 2025 | AWARD | 120,000 | $4.37 | $524.4K | Form 4 |
| Costa Carlos | Chief People Officer | Jan 22, 2025 | AWARD | 115,000 | $4.37 | $502.6K | Form 4 |
| Rivkin Anna | Chief Business Officer | Jan 22, 2025 | AWARD | 50,000 | $4.37 | $218.5K | Form 4 |
| GOTTSCHALK ADRIAN | director, officer: Chief Executive Officer | Jan 22, 2025 | AWARD | 400,000 | $4.37 | $1.7M | Form 4 |
| Bellon Steven F. | Chief Scientific Officer | Jan 22, 2025 | AWARD | 140,000 | $4.37 | $611.8K | Form 4 |
| LaCascia Michael | Chief Legal Officer | Jan 22, 2025 | AWARD | 126,000 | $4.37 | $550.6K | Form 4 |
| Koppel Adam | Dec 29, 2024 | OTHER | 0 | — | — | Form 4 | |
| Costa Carlos | Chief People Officer | Sep 20, 2024 | OPTION EX. | 35,756 | $3.72 | $133.0K | Form 4 |
| Costa Carlos | Chief People Officer | Sep 23, 2024 | OPTION EX. | 857 | $3.72 | $3.2K | Form 4 |
| Costa Carlos | Chief People Officer | Sep 20, 2024 | OPTION EX. | 35,756 | $3.72 | $133.0K | Form 4 |
| Costa Carlos | Chief People Officer | Sep 23, 2024 | OPTION EX. | 857 | $3.72 | $3.2K | Form 4 |
| Costa Carlos | Chief People Officer | Sep 23, 2024 | SELL | 857 | $10.17 | $8.7K | Form 4 |
| Costa Carlos | Chief People Officer | Sep 20, 2024 | SELL | 35,756 | $10.04 | $359.0K | Form 4 |
| Costa Carlos | Chief People Officer | Sep 18, 2024 | OPTION EX. | 11,574 | $3.72 | $43.1K | Form 4 |
| Costa Carlos | Chief People Officer | Sep 18, 2024 | OPTION EX. | 11,574 | $3.72 | $43.1K | Form 4 |
| Costa Carlos | Chief People Officer | Sep 18, 2024 | SELL | 11,574 | $10.05 | $116.3K | Form 4 |
| Costa Carlos | Chief People Officer | Sep 16, 2024 | OPTION EX. | 400 | $3.72 | $1.5K | Form 4 |
| Costa Carlos | Chief People Officer | Sep 17, 2024 | OPTION EX. | 10,272 | $3.72 | $38.2K | Form 4 |
| Costa Carlos | Chief People Officer | Sep 17, 2024 | OPTION EX. | 10,272 | $3.72 | $38.2K | Form 4 |
| Costa Carlos | Chief People Officer | Sep 16, 2024 | OPTION EX. | 400 | $3.72 | $1.5K | Form 4 |
| Costa Carlos | Chief People Officer | Sep 17, 2024 | SELL | 10,272 | $10.04 | $103.1K | Form 4 |
| Costa Carlos | Chief People Officer | Sep 16, 2024 | SELL | 400 | $10.00 | $4.0K | Form 4 |
| Bellon Steven F. | Chief Scientific Officer | Sep 9, 2024 | SELL | 20,000 | $9.50 | $190.0K | Form 4 |
| Rivkin Anna | Chief Business Officer | Sep 3, 2024 | AWARD | 190,000 | $7.85 | $1.5M | Form 4 |
| Rivkin Anna | Sep 3, 2024 | OTHER | 0 | — | — | Form 4 | |
| Biller Scott | director | Jun 26, 2024 | AWARD | 16,000 | $5.52 | $88.3K | Form 4 |
| Mendelsohn Michael | director | Jun 26, 2024 | AWARD | 16,000 | $5.52 | $88.3K | Form 4 |
| SMITH IAN F | director | Jun 26, 2024 | AWARD | 16,000 | $5.52 | $88.3K | Form 4 |
| Lynch Thomas J. Jr. | director | Jun 26, 2024 | AWARD | 16,000 | $5.52 | $88.3K | Form 4 |
| GILL SIMBA | director | Jun 26, 2024 | AWARD | 16,000 | $5.52 | $88.3K | Form 4 |
| Cole Douglas G. | director | Jun 26, 2024 | AWARD | 16,000 | $5.52 | $88.3K | Form 4 |
| PARSHALL B LYNNE | director | Jun 26, 2024 | AWARD | 16,000 | $5.52 | $88.3K | Form 4 |
| Koppel Adam | director | Jun 26, 2024 | AWARD | 16,000 | $5.52 | $88.3K | Form 4 |
| Cavalie Fanny | Jun 21, 2024 | OTHER | 0 | — | — | Form 4 | |
| Flagship Pioneering Inc. | 10 percent owner | May 22, 2024 | BUY | 1,814,915 | $0.00 | $181.49 | Form 4 |
| Flagship Pioneering Inc. | 10 percent owner | May 22, 2024 | BUY | 1,814,914 | $0.00 | $181.49 | Form 4 |
| Flagship Pioneering Fund VII General Partner LLC | 10 percent owner | May 22, 2024 | OTHER | 1,814,915 | $0.00 | $181.49 | Form 4 |
| Humer Kristian | Chief Financial Officer | Apr 16, 2024 | AWARD | 275,000 | $6.03 | $1.7M | Form 4 |
| Humer Kristian | Apr 16, 2024 | OTHER | 0 | — | — | Form 4 | |
| Cavalie Fanny | Chief Strategy/Bus Ops Officer | Mar 11, 2024 | SELL | 11,000 | $6.56 | $72.1K | Form 4 |
| GOTTSCHALK ADRIAN | director, officer: Chief Executive Officer | Jan 24, 2024 | AWARD | 300,000 | $3.06 | $918.0K | Form 4 |
| Cardama Alfonso Quintas | Chief Medical Officer | Jan 24, 2024 | AWARD | 60,000 | $3.06 | $183.6K | Form 4 |
| Cavalie Fanny | Chief Strategy/Bus Ops Officer | Jan 24, 2024 | AWARD | 80,000 | $3.06 | $244.8K | Form 4 |
| Costa Carlos | Chief People Officer | Jan 24, 2024 | AWARD | 90,000 | $3.06 | $275.4K | Form 4 |
| Bellon Steven F. | Chief Scientific Officer | Jan 24, 2024 | AWARD | 110,000 | $3.06 | $336.6K | Form 4 |
| LaCascia Michael | Chief Legal Officer | Jan 24, 2024 | AWARD | 100,000 | $3.06 | $306.0K | Form 4 |
| Reine Allan | Jan 16, 2024 | OTHER | 0 | — | — | Form 4 | |
| SMITH IAN F | director | Dec 8, 2023 | AWARD | 26,977 | $5.63 | $151.9K | Form 4 |
| Agresta Samuel | Sep 11, 2023 | OTHER | 0 | — | — | Form 4 | |
| Cardama Alfonso Quintas | Chief Medical Officer | Sep 11, 2023 | AWARD | 272,000 | $7.57 | $2.1M | Form 4 |
| Cardama Alfonso Quintas | Sep 11, 2023 | OTHER | 0 | — | — | Form 4 | |
| Agresta Samuel | Chief Medical Officer | Aug 16, 2023 | OPTION EX. | 311,297 | $3.72 | $1.2M | Form 4 |
| Agresta Samuel | Chief Medical Officer | Aug 16, 2023 | SELL | 311,297 | $8.25 | $2.6M | Form 4 |