Fairmount Healthcare Fund II L.P. plan to sell securities of Cogent Biosciences, Inc. under Form 144

Fairmount Healthcare Fund II L.P. filed Form 144 to notify SEC of plan to sell 7000000 units of Cogent Biosciences, Inc. securities around 2026-03-31, with aggregate market value of $242,620,000.00. The total outstanding units is 162308820.0. The amount planned to be sold represents 4.31% of total outstanding units; Recent transactions in past 3 months include: On 01/22/2026, sold 3500000 units for $127400000.00;