Third Rock Ventures V, L.P. plan to sell securities of Rapport Therapeutics, Inc. under Form 144

Third Rock Ventures V, L.P. filed Form 144 to notify SEC of plan to sell 18572 units of Rapport Therapeutics, Inc. securities around 2026-05-26, with aggregate market value of $742,880.00. The total outstanding units is 47826929.0. The amount planned to be sold represents 0.04% of total outstanding units; Recent transactions in past 3 months include: On 04/17/2026, sold 426005 units for $17175115.78; On 05/07/2026, sold 271495 units for $47826929.00; On 05/08/2026, sold 5018 units for $202254.50; On 05/11/2026, sold 133618 units for $5378124.50;