Form 4: Verastem CEO Sells 6,000 Shares Under 10b5-1 Plan

Verastem Inc.'s President and CEO, Dan Paterson, reported the sale of 6,000 shares of common stock across three transactions in early December 2025, executed under a pre-arranged Rule 10b5-1 trading plan.

Summary

• Dan Paterson, President and CEO, and a Director of Verastem, Inc. (VSTM), reported the sale of 6,000 shares of common stock.
• The sales occurred on December 5, 2025 (2,000 shares at $10.61), December 8, 2025 (2,000 shares at $10.50), and December 9, 2025 (2,000 shares at $10.25).
• These transactions were executed pursuant to a Rule 10b5-1 trading plan, indicating they were pre-scheduled.
• Following these sales, Mr. Paterson beneficially owns 414,818 shares of Verastem common stock.

Sentiment

Score: 4

Explanation: The sentiment is moderately negative due to insider selling, although the impact is mitigated by the disclosure that sales were made under a Rule 10b5-1 plan, indicating pre-scheduled transactions rather than a reaction to immediate negative news.

Negatives

• Insider selling by the President and CEO, Dan Paterson, totaling 6,000 shares.
• The sales occurred at prices ranging from $10.25 to $10.61 per share.

Stakeholder Impact

• Shareholders: May interpret insider selling as a lack of confidence, potentially leading to downward pressure on the stock price, though the 10b5-1 plan mitigates this to some extent.

Key Dates

Recommendation

While insider selling by a CEO is generally a negative signal, the fact that these sales were executed under a pre-arranged Rule 10b5-1 trading plan suggests they are not a reaction to new, adverse information. The volume of shares sold (6,000) is relatively small compared to the CEO's remaining beneficial ownership (414,818 shares), indicating a minor reduction in stake rather than a significant divestment. Therefore, a 'hold' recommendation is appropriate, advising investors to monitor future filings and company performance rather than reacting solely to these planned sales.

Keywords

Verastem, VSTM, Insider Trading, Form 4, Stock Sale, CEO, Dan Paterson, 10b5-1 Plan, Equity Transaction