Mahoney Robert John 4
4 · AXCELIS TECHNOLOGIES INC · Filed May 20, 2026
Research Summary
AI-generated summary of this filing
Axcelis (ACLS) EVP Robert Mahoney Surrenders Shares for Taxes
What Happened
Robert J. Mahoney, EVP Global Operations of Axcelis Technologies (ACLS), had 312 shares (182 + 130) withheld/surrendered to cover tax withholding for RSUs that vested on May 16, 2026. The withheld shares were valued at $146.24 each (182 × $146.24 = $26,616; 130 × $146.24 = $19,011), a total of $45,627. This was a forfeiture/withholding to satisfy tax obligations (transaction code F), not an open-market sale or purchase.
Key Details
- Transaction date: May 18, 2026; filing date: May 20, 2026 (timely Form 4 filing).
- Prices and amounts: 182 shares @ $146.24 = $26,616; 130 shares @ $146.24 = $19,011. F2 notes this is the closing price on the withholding date.
- Reason: F1 — shares were reduced to satisfy the executive's tax withholding obligation on RSUs that vested May 16, 2026.
- Post-vesting notes: F3 and F4 indicate that, after this vesting event, 12,846 and 12,578 shares (from different RSU grants) remain issuable on future vesting and are subject to forfeiture.
- Transaction code: F = tax withholding (share surrender), not an indication of a market sell.
Context
This was a routine cashless/withholding action tied to RSU vesting (company withheld shares to pay taxes). Such forfeitures are administrative and do not necessarily signal the insider selling shares on the open market or a change in sentiment.
Insider Transaction Report
- Tax Payment
Common Stock
[F2][F1][F3]2026-05-18$146.24/sh−182$26,616→ 15,695 total - Tax Payment
Common Stock
[F2][F1][F4]2026-05-18$146.24/sh−130$19,011→ 15,565 total
Footnotes (4)
- [F1]This forfeiture of shares for tax withholding purposes relates to the vesting on May 16, 2026 of service vesting restricted stock units granted to the executive in May 2022. The shares issued to the executive on the vesting were reduced by a number of shares having a value equal to the executive's tax withholding obligation with respect to the vested restricted stock units.
- [F2]Represents the closing price of the common stock on the date of the tax withholding.
- [F3]Of the shares held after this vesting event on May 16, 2026, 12,846 were issuable on vesting of restricted stock units granted to the reporting person under the 2012 Equity Incentive Plan and are subject to forfeiture.
- [F4]Of the shares held after this vesting event on May 16, 2026, 12,578 were issuable on vesting of restricted stock units granted to the reporting person under the 2012 Equity Incentive Plan and are subject to forfeiture.