Acrivon Therapeutics, Inc. Chief Legal Officer Mary Miller filed a Form 4 on October 26, 2026, disclosing the automatic sale of 513 shares of common stock on October 22, 2026, to satisfy mandatory tax withholding obligations upon the vesting of restricted stock units.

Key Highlights

  • Reporting person: Mary Miller, Chief Legal Officer of Acrivon Therapeutics, Inc.
  • Transaction date: October 22, 2026
  • Shares disposed: 513 shares of common stock, transaction code S
  • Weighted average sale price: $1.84 per share
  • Purpose: Shares sold automatically by a broker to satisfy mandatory tax withholding upon RSU vesting
  • Beneficial ownership following transaction: 81,202 shares held directly

RSU Vesting Triggers Automatic Tax-Withholding Sale for Acrivon CLO Mary Miller

According to the filing, Mary Miller, Chief Legal Officer of Acrivon Therapeutics, Inc. (NASDAQ:ACRV), disposed of 513 shares of common stock on October 22, 2026. The filing states that these shares were "sold automatically to satisfy the mandatory tax withholding requirement upon vesting of restricted stock units." The transaction was executed by a broker and is recorded under transaction code S in Table I of the Form 4.

The filing notes that the price of $1.84 per share "reflects the weighted average price of 513 shares sold by a broker on October 22, 2026, to satisfy the payment of withholding tax liability of the reporting person." Following this transaction, Miller's direct beneficial ownership in Acrivon Therapeutics common stock stands at 81,202 shares, as reported in the filing. No derivative securities transactions were reported in Table II.

The Form 4 was signed by Adam D. Levy as Attorney-in-Fact on October 26, 2026, and was filed on that same date. No amendment date was indicated, suggesting this is an original filing. The filing covers a transaction with an earliest date of October 22, 2026.

What Was Disclosed

Mary Miller, Chief Legal Officer of Acrivon Therapeutics, filed a Form 4 reporting the automatic broker sale of 513 common shares at a weighted average price of $1.84 on October 22, 2026, to cover RSU vesting tax withholding, leaving her with 81,202 directly held shares.