Form 4: Verastem CFO Sells Shares for Tax Obligations

Verastem's Chief Financial Officer, Daniel Calkins, sold a total of 82 shares of common stock to cover tax withholding requirements related to restricted stock unit vesting.

Summary

• Daniel Calkins, Chief Financial Officer of Verastem, Inc. (VSTM), reported two sales of common stock.
• On September 22, 2025, 57 shares were sold at a price of $9.08 per share.
• On September 24, 2025, an additional 25 shares were sold at a price of $9.23 per share.
• These sales were executed to satisfy statutory withholding requirements in connection with the vesting of restricted stock units.
• The transactions were made pursuant to a contract, instruction, or written plan intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).
• Following these reported transactions, Daniel Calkins beneficially owns 109,838 shares of Verastem common stock.

Sentiment

Score: 5

Explanation: The filing reports a routine, non-discretionary sale of shares by an insider to cover tax obligations related to RSU vesting, which is a neutral event with no significant positive or negative implications for the company's operations or financial health.

Future Outlook

NA

Industry Context

NA

Stakeholder Impact

• Minimal direct impact on shareholders as the transaction is a routine tax-related sale by an insider, not indicative of a change in confidence or company fundamentals.

Key Dates

Recommendation

The filing details a routine, non-discretionary sale of shares by the CFO to cover tax obligations from RSU vesting. This is a common practice and does not reflect a change in the company's fundamentals or the insider's confidence. Therefore, it provides no new information to alter an existing investment thesis, warranting a 'hold' recommendation based solely on this filing.

Keywords

Verastem, VSTM, Daniel Calkins, CFO, Insider Transaction, Form 4, Stock Sale, Restricted Stock Units, RSU, Tax Withholding, 10b5-1 Plan