144 0001364719 XXXXXXXX LIVE 0001526119 Verastem, Inc. 001-35403 117 KENDRICK STREET SUITE 500 NEEDHAM MA 02494 (781) 292-4200 Kauffman Michael Board Member Common Jefferies LLC

520 Madison Ave New York NY 10022

8550 83875.50 67000000 11/21/2025 NASDAQ Common 06/18/2024 Restricted Stock Grant Verastem, Inc N 8333 06/18/2024 N/A Common 09/28/2018 Restricted Stock Grant Verstem Inc N 217 09/28/2018 N/A Y All Sales are to be made pursuant to a previously signed/adopted 10b5-1 Selling plan dated 06/11/2025, and all representations regarding material non-public information were made as of the adoption of the plan. 11/21/2025 06/11/2025 Michael Kauffman