Verastem, Inc. — Director's Dealing 2026

Jan 23, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Verastem, Inc. (VSTM)
CIK: 0001526119
Period of Report: 2026-01-21

Reporting Person: Calkins Daniel (Chief Financial Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-01-21	Common Stock	A	16665	$0.00	Acquired	121384	Direct

Footnotes

F1: Restricted stock units ("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 as to 33.3% of the RSUs on the first three anniversaries of January 21, 2026 such that the award is fully vested on January 21, 2029 (with the number of RSUs vesting on each vesting date rounded down to the nearest whole RSU, except with respect to the final vesting date on which all remaining unvested RSUs shall vest), provided that the Reporting Person continues to serve as an employee of or other service provider to the Issuer on each such vesting date.