Robert E. Gagnon - 16 Dec 2025 Form 4 Insider Report for Verastem, Inc. (VSTM)

Role
Director
Signature
/s/ Daniel Calkins, Attorney in Fact
Issuer symbol
VSTM
Transactions as of
16 Dec 2025
Net transactions value
-$2,587
Form type
4
Filing time
18 Dec 2025, 16:45:15 UTC
Previous filing
18 Sep 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Gagnon Robert E. Director C/O VERASTEM, INC.,, 117 KENDRICK ST., SUITE 500, NEEDHAM /s/ Daniel Calkins, Attorney in Fact 18 Dec 2025 0001504983

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction VSTM Common Stock Sale $2,587 -283 -0.67% $9.14 41,678 16 Dec 2025 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
F1 The sale reported on this Form 4 represents shares sold by the Reporting Person to satisfy statutory withholding requirements in connection with the vesting of restricted stock units.