Mahoney Robert John 4

What Happened
Robert John Mahoney, EVP Global Operations at Axcelis Technologies (ACLS), had 573 shares forfeited/withdrawn to cover tax withholding on the vesting of performance-based restricted stock units. The shares were valued at $86.58 each (closing price on March 2, 2026), for a total of $49,610. This was a tax-withholding disposition (code F), not an open-market sale.

Key Details

• Transaction date: March 2, 2026; filing date: March 3, 2026 (next day filing; no late filing indicated).
• Price used: $86.58 per share (closing price on March 2, 2026).
• Shares forfeited/issued to company: 573 (to satisfy tax withholding), reported as a disposition.
• Footnote highlights:
  • These shares relate to the vesting on Feb 28, 2026 of 2024 performance-based RSUs granted in May 2024; the Compensation Committee determined 150% of target were earned. Half of the earned shares vested Feb 28, 2025 and the remainder vested Feb 28, 2026. (F1)
  • 10,543 shares remaining after this vesting are issuable on other RSUs under the 2012 Equity Incentive Plan and remain subject to forfeiture. (F3)
• Shares owned after the transaction: not specified in the provided filing; see note about 10,543 issuable RSUs above.

Context
This was a routine tax-withholding event tied to vested performance-based awards (a cashless/forfeiture to cover tax obligations), which is common and does not necessarily indicate insider sentiment. It differs from an open-market sale because shares were withheld by the company to satisfy taxes rather than being sold on the market by the executive.