Form 4: Verastem Director Sells Shares for Tax Withholding

Verastem Director Robert E. Gagnon reported the sale of 283 shares of common stock to cover tax obligations related to restricted stock unit vesting.

Summary

• Robert E. Gagnon, a Director of Verastem, Inc. (VSTM), reported a transaction on December 16, 2025.
• The transaction involved the sale of 283 shares of Verastem Common Stock at a price of $9.14 per share.
• The sale was executed to satisfy statutory withholding requirements associated with the vesting of restricted stock units.
• Following this transaction, Mr. Gagnon beneficially owns 41,678 shares of Verastem Common Stock.
• The transaction was made pursuant to a Rule 10b5-1(c) plan, indicating a pre-arranged sale.

Sentiment

Score: 5

Explanation: Neutral. This is a routine compliance filing for a non-discretionary sale to cover tax obligations, which is common for RSU vesting.

Positives

• The transaction was made pursuant to a Rule 10b5-1(c) plan, indicating a pre-arranged sale and not a discretionary decision based on new information.

Negatives

• A director sold 283 shares of common stock, which slightly reduces their direct ownership.

Future Outlook

NA

Management Comments

• 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.

Industry Context

NA

Stakeholder Impact

• Shareholders: Minimal impact due to the small number of shares sold and the non-discretionary nature of the sale for tax purposes.

Key Dates

Keywords

Verastem, VSTM, Robert E. Gagnon, Form 4, insider transaction, stock sale, director, restricted stock units, tax withholding, 10b5-1 plan