SEC Insider Transactions from Green John L..

Last updated: 2026-03-14 11:42 UTC | Total transactions: 7

John L. Green, CFO of Cogent Biosciences ($COGT), sold nearly $3 million in company shares on the open market once over the past year, with the latest sale on December 26, 2025. This ranks his total 2742nd among nearly 12,000 individual insiders, below the average sale amount of $8.6 million across 6.4 transactions. He made no open market purchases in the period.

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Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
Dec. 26, 2025 Cogent Biosciences, Inc. $COGT Green John L. Chief Financial Officer S Common Stock 77000 $38.68 131,834.0000 142,376,529 36.87% 0.05%
Dec. 17, 2025 Cogent Biosciences, Inc. $COGT Green John L. Chief Financial Officer A Common Stock 50000 $0.00 53,841.0000 142,376,529 1301.74% 0.04%
Dec. 17, 2025 Cogent Biosciences, Inc. $COGT Green John L. Chief Financial Officer A Common Stock 300000 $0.00 353,841.0000 142,376,529 557.20% 0.21%
Dec. 17, 2025 Cogent Biosciences, Inc. $COGT Green John L. Chief Financial Officer F Common Stock 145007 $39.45 208,834.0000 142,376,529 40.98% 0.10%
Dec. 17, 2025 Cogent Biosciences, Inc. $COGT Green John L. Chief Financial Officer A Stock Option (Right to Buy) 65000 $0.00 65,000.0000 142,376,529 9999.99% 0.05%
Jan. 23, 2025 Cogent Biosciences, Inc. $COGT Green John L. Chief Financial Officer A Stock Option (Right to Buy) 270000 $0.00 270,000.0000 0 9999.99% 0.00%
Jan. 23, 2024 Cogent Biosciences, Inc. $COGT Green John L. Chief Financial Officer A Stock Option (Right to Buy) 300000 $0.00 300,000.0000 0 9999.99% 0.00%