Verastem, Inc. — Director's Dealing 2025

May 27, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Verastem, Inc. (VSTM)
CIK: 0001526119
Period of Report: 2025-05-22

Reporting Person: Gagnon Robert E. (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-05-22	Common Stock	A	8333	$0.00	Acquired	42526	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-05-22	Stock Option (right to buy)	$7.48	A	12500	Acquired	2035-05-22	Common Stock (12500)	Direct

Footnotes

F1: RSUs granted to the Reporting Person under the Issuer's Amended and Restated 2021 Equity Incentive Plan. Each RSU represents the contingent right to receive one share of Common Stock. The RSUs vest in twelve equal installments (rounded down to the nearest whole share on each vesting date except with respect to the final vesting date on which the remaining unvested portion shall vest). The first eleven installments shall vest beginning on the last day of each month over a period from June, 2025 to April, 2026 and the last installment shall vest on the earlier of (i) the day before the 2026 Annual Meeting of Stockholders is held or (ii) May 31, 2026, provided that the Reporting Person continues to serve as a director of the Issuer on each such vesting date.

F2: The stock option vests in twelve equal installments (rounded down to the nearest whole share on each vesting date except with respect to the final vesting date on which the remaining unvested portion shall vest). The first eleven installments shall vest beginning on the last day of each month over a period from June, 2025 to April, 2026 and the last installment shall vest on the earlier of (i) the day before the 2026 Annual Meeting of Stockholders is held or (ii) May 31, 2026, provided that the Reporting Person continues to serve as a director of the Issuer on each such vesting date.