Axcelis EVP Christopher Tatnall Forfeits 136 Shares for Taxes

What Happened Christopher Tatnall, EVP Global Customer Operations at Axcelis Technologies (ACLS), had 136 shares withheld/forfeited to satisfy tax withholding associated with the vesting of restricted stock units. The shares were valued at $105.04 each (closing price), for a total withholding value of approximately $14,285. This was a tax-withholding disposition tied to RSU vesting on September 15, 2026—not an open-market sale.

Key Details

• Transaction date and type: September 15, 2026 — tax withholding/forfeiture of shares (transaction code F).
• Shares and price: 136 shares withheld at $105.04 per share; total value ≈ $14,285 (closing price used).
• Footnotes: Withholding related to RSUs granted in September 2023 that vested on Sept 15, 2026; the shares issued were reduced by the number needed to cover the executive’s tax obligation.
• Post-transaction holdings: The filing notes that, of shares held after this vesting event, 20,590 were issuable on vesting of additional RSUs and remain subject to forfeiture. The filing does not report an open-market sale.
• Filing timeliness: Report filed 2026-09-16 for a 2026-09-15 transaction — appears timely.

Context This is a routine tax-withholding transaction common when restricted stock units vest: the company withholds (or the insider forfeits) a portion of shares to cover taxes rather than selling shares on the open market. Such withholdings do not necessarily indicate insider sentiment about the stock. For retail investors, outright purchases by insiders tend to be more informative than routine withholding events.