COGT
Cogent Biosciences, Inc.
NASDAQ · Healthcare · Biotechnology · US
$34.67
−0.80%0
Insider buys (3m)
2
Insider sells (3m)
-$1.7M
Net value (3m)
+11.5%
Price return (3m)
Form 4 filings
| Date | Insider | Activity | Shares | Price |
|---|---|---|---|---|
| Aug 31, 2026 | Morris Arlene · director | Sale | 42,349 | $37 |
| Aug 31, 2026 | Morris Arlene · director | M-Exempt | 41,927 | $5.64 |
| Aug 31, 2026 | Morris Arlene · director | Sale | 3,161 | $38 |
| Aug 31, 2026 | Morris Arlene · director | M-Exempt | 3,583 | $2.52 |
| Jul 6, 2026 | Ferrante Karen Jean · director | A-Award | 627 | $38 |
| Jun 11, 2026 | CAIN CHRISTOPHER W. · director | A-Award | 17,901 | $32 |
| Jun 11, 2026 | Harwin Peter Evan · director | A-Award | 17,901 | $32 |
| Jun 11, 2026 | Ferrante Karen Jean · director | A-Award | 17,901 | $32 |
| Jun 11, 2026 | Morris Arlene · director | A-Award | 17,901 | $32 |
| Jun 11, 2026 | Shegog Todd · director | A-Award | 17,901 | $32 |
| Jun 11, 2026 | Ros Matthew · director | A-Award | 17,901 | $32 |
| Apr 3, 2026 | Ferrante Karen Jean · director | A-Award | 686 | $35 |
| Mar 31, 2026 | Fairmount Funds Management LLC · director | Sale | 7,000,000 | $35 |
| Jan 22, 2026 | Fairmount Funds Management LLC · director | Sale | 3,500,000 | $36 |
| Jan 5, 2026 | Ferrante Karen Jean · director | A-Award | 643 | $35 |
| Dec 30, 2025 | Kearns Evan · officer: Chief Legal Officer | Sale | 65,000 | $39 |
| Dec 30, 2025 | Robinson John Edward · officer: Chief Scientific Officer | Sale | 90,000 | $39 |
| Dec 30, 2025 | Green John L. · officer: Chief Financial Officer | Sale | 77,000 | $39 |
| Dec 30, 2025 | Sachs Jessica · officer: Chief Medical Officer | Sale | 82,642 | $39 |
| Dec 19, 2025 | Green John L. · officer: Chief Financial Officer | A-Award | 50,000 | $0.00 |
| Dec 19, 2025 | Kearns Evan · officer: Chief Legal Officer | A-Award | 260,000 | $0.00 |
| Dec 19, 2025 | Robbins Andrew R · director, officer: President and CEO | F-InKind | 367,497 | $39 |
| Dec 19, 2025 | Sachs Jessica · officer: Chief Medical Officer | A-Award | 50,000 | $0.00 |
| Dec 19, 2025 | Green John L. · officer: Chief Financial Officer | F-InKind | 145,007 | $39 |
| Dec 19, 2025 | Sachs Jessica · officer: Chief Medical Officer | F-InKind | 154,716 | $39 |
| Dec 19, 2025 | Green John L. · officer: Chief Financial Officer | A-Award | 300,000 | $0.00 |
| Dec 19, 2025 | Robbins Andrew R · director, officer: President and CEO | A-Award | 245,000 | $39 |
| Dec 19, 2025 | Green John L. · officer: Chief Financial Officer | A-Award | 65,000 | $39 |
| Dec 19, 2025 | Robbins Andrew R · director, officer: President and CEO | A-Award | 185,000 | $0.00 |
| Dec 19, 2025 | Pinnow Cole · officer: Chief Commercial Officer | A-Award | 214,000 | $0.00 |
Institutional positioning
13F filings over the trailing two quarters
New 147Increased 255Reduced 172Sold out 43
| Filer | Action | Shares | Filed |
|---|---|---|---|
| FMR LLC | Increased | 25,681,174 | Aug 13, 2026 |
| FMR LLC | Increased | 23,122,748 | May 15, 2026 |
| BlackRock, Inc. | Increased | 17,352,646 | Aug 7, 2026 |
| BLACKROCK, INC. | Increased | 16,045,014 | May 13, 2026 |
| DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) | Unchanged | 9,043,903 | May 15, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 8,072,411 | Aug 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 7,412,330 | Aug 13, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 7,333,333 | May 8, 2026 |
| STATE STREET CORP | Increased | 6,964,919 | Aug 7, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 6,894,959 | May 15, 2026 |
| Jupiter Topco LLC | New Position | 6,624,848 | Aug 14, 2026 |
| JANUS HENDERSON GROUP PLC | Increased | 5,965,125 | May 18, 2026 |
| STATE STREET CORP | Increased | 5,663,543 | May 15, 2026 |
| FAIRMOUNT FUNDS MANAGEMENT LLC | Reduced | 5,503,418 | May 15, 2026 |
| Fairmount Funds Management LLC | Unchanged | 5,503,418 | Aug 14, 2026 |
Insider activity from SEC Form 4; institutional positioning from 13F filings · Latest filing Aug 31, 2026