COGTNasdaq SEC EDGAR

Cogent Biosciences, Inc.

Pharmaceutical Preparations·WALTHAM, MA·FY end 12/31·CIK 1622229

Overview Financials Compensation Governance Insiders Filings

Net 180d

-$764.4M

0 buys / 12 sales

Open-market buys

0 transactions

Open-market sales

$764.4M

12 transactions

Cluster windows

0 buy / 3 sell

Insider transaction timeline

2-year window · 28 buys · 24 sales · dot size = transaction value

AcquisitionsSalesCluster window (≥2 sales / month)

Form 4 transactions

Showing 30 of 52

Date	Insider	Type	Shares	Value
2026-03-31	Fairmount Funds Management LLC	Acquired	7,000,000	—
2026-03-31	Fairmount Funds Management LLC	Sale	7,000,000	-$242.6M
2026-03-31	Fairmount Funds Management LLC	Acquired	7,000,000	—
2026-03-31	Fairmount Funds Management LLC	Sale	7,000,000	-$242.6M
2026-01-22	Fairmount Funds Management LLC	Sale	3,500,000	-$127.4M
2026-01-22	Fairmount Funds Management LLC	Sale	3,500,000	-$127.4M
2025-12-26	Kearns EvanChief Legal Officer	Sale	65,000	-$2.5M
2025-12-26	Robinson John EdwardChief Scientific Officer	Sale	90,000	-$3.5M
2025-12-26	Green John L.Chief Financial Officer	Sale	77,000	-$3.0M
2025-12-26	Sachs JessicaChief Medical Officer	Sale	82,642	-$3.2M
2025-12-26	Kearns EvanChief Legal Officer	Sale	65,000	-$2.5M
2025-12-26	Robinson John EdwardChief Scientific Officer	Sale	90,000	-$3.5M
2025-12-26	Green John L.Chief Financial Officer	Sale	77,000	-$3.0M
2025-12-26	Sachs JessicaChief Medical Officer	Sale	82,642	-$3.2M
2025-12-17	Kearns EvanChief Legal Officer	Award	40,000	—
2025-12-17	Kearns EvanChief Legal Officer	Award	260,000	—
2025-12-17	Kearns EvanChief Legal Officer	Tax withhold	125,602	-$5.0M
2025-12-17	Sachs JessicaChief Medical Officer	Award	50,000	—
2025-12-17	Sachs JessicaChief Medical Officer	Award	320,000	—
2025-12-17	Sachs JessicaChief Medical Officer	Tax withhold	154,716	-$6.1M
2025-12-17	Pinnow ColeChief Commercial Officer	Award	50,000	—
2025-12-17	Pinnow ColeChief Commercial Officer	Award	214,000	—
2025-12-17	Pinnow ColeChief Commercial Officer	Tax withhold	94,800	-$3.7M
2025-12-17	Robbins Andrew RPresident and CEO	Award	185,000	—
2025-12-17	Robbins Andrew RPresident and CEO	Award	840,000	—
2025-12-17	Robbins Andrew RPresident and CEO	Tax withhold	367,497	-$14.5M
2025-12-17	Green John L.Chief Financial Officer	Award	50,000	—
2025-12-17	Green John L.Chief Financial Officer	Award	300,000	—
2025-12-17	Green John L.Chief Financial Officer	Tax withhold	145,007	-$5.7M
2025-12-17	Robinson John EdwardChief Scientific Officer	Award	50,000	—