Form 4: Revolution Medicines COO Sells Shares for Tax

Revolution Medicines' Chief Operating Officer, Margaret A. Horn, sold 4,847 shares of common stock to cover tax withholding obligations related to RSU vesting.

Summary

• Margaret A. Horn, Chief Operating Officer of Revolution Medicines, Inc. (RVMD), reported a sale of common stock.
• The transaction involved the disposition of 4,847 shares of common stock at a price of $76.8173 per share.
• The sale was executed on December 16, 2025, pursuant to a Rule 10b5-1 instruction letter adopted on May 31, 2023.
• The purpose of the sale was to satisfy the reporting person's tax withholding obligation upon the vesting of restricted stock units (RSUs) after July 15, 2023.
• Following this transaction, Margaret A. Horn beneficially owns 141,053 shares, which includes 61,226 restricted stock units.

Sentiment

Score: 5

Explanation: The transaction is a routine sale of shares by an officer to cover tax withholding obligations upon the vesting of restricted stock units, as per a pre-arranged 10b5-1 plan. This is a neutral event and does not reflect a change in management's confidence in the company's future or its operational performance.

Future Outlook

The filing does not contain any forward-looking statements or guidance regarding the company's future performance or outlook.

Industry Context

This filing details a routine insider transaction for tax purposes and does not provide information relevant to broader industry trends or competitive landscape.

Stakeholder Impact

• Shareholders: The sale represents a minor dilution of outstanding shares, but it is a routine event for tax purposes and is unlikely to have a significant impact on shareholder value or perception.
• Employees: No direct impact on employees is indicated by this filing.

Key Dates

Keywords

Revolution Medicines, RVMD, Insider Trading, Form 4, Stock Sale, Tax Withholding, RSU Vesting, 10b5-1 Plan, Chief Operating Officer