Axcelis (ACLS) EVP Greg Redinbo Forfeits Shares for Tax Withholding

What Happened
Greg Redinbo, EVP and Chief Strategy Officer of Axcelis Technologies (ACLS), surrendered/forfeited 208 shares on September 15, 2026 to satisfy tax withholding obligations related to the vesting of restricted stock units. The shares were valued at $105.04 each (closing price), for a total tax-withholding value of $21,848. This was a tax-withholding share surrender (transaction code F), not an open-market sale.

Key Details

• Transaction date: 2026-09-15; SEC filing date: 2026-09-16 (timely filing).
• Shares withheld/forfeited: 208 at $105.04 per share; total value ≈ $21,848 (per footnote F2).
• Nature of transaction: Tax withholding on RSU vesting (code F). The shares issued upon vesting were reduced by the number of shares equal to the tax obligation (footnote F1).
• Post-transaction holdings: After this vesting event, 19,782 shares were noted as issuable on vesting of RSUs granted under the 2012 Equity Incentive Plan and remain subject to forfeiture (footnote F3).
• Filing timeliness: Report filed the next day; no late filing indicated.

Context
This is a routine, non-discretionary tax-withholding event tied to RSU vesting and does not indicate an active decision to sell shares on the open market. For retail investors, such transactions are administrative and common when restricted stock or RSUs vest — they are not generally interpreted as a directional insider buy/sell signal.