144 0001504983 XXXXXXXX LIVE 0001526119 Verastem, Inc. 001-35403 117 KENDRICK STREET SUITE 500 NEEDHAM MA 02494 (781) 292-4200 Gagnon Robert E. Director Common Jefferies LLC

520 Madison Avenue, 4th Floor New York NY 10022

31924 188032.36 87870000 07/23/2026 NASDAQ Common 05/22/2025 Vested Restricted Stock Units Verastem Inc. N 1389 05/22/2024 NA Common 12/31/2022 Vested Stock Options Verastem Inc. N 12827 12/13/2022 NA Common 05/15/2023 Vested Stock Options Verastem Inc. N 5208 05/15/2023 NA Common 06/18/2024 Vested Stock Options Verastem Inc. N 12500 06/18/2024 NA N Robert Gagnon

117 Kendrick St. Suite 500 Needham MA 02494

Verastem Inc 05/27/2026 20103 84835.67 Robert Gagnon

117 Kendrick St. Suite 500 Needham MA 02494

Verastem Inc 06/25/2026 20103 70072.42 07/23/2026 Robert Gagnon