Axcelis Technologies EVP Robert Mahoney Receives Equity Awards and Sells Shares for Tax Withholding

On May 15, 2026, Robert Mahoney, Executive Vice President of Global Operations at Axcelis Technologies, received two equity awards under the company's 2012 Equity Incentive Plan. He was granted 1,947 restricted stock units with time-based vesting (one-third each on May 15, 2027, 2028, and 2029) and another 1,947 performance-based restricted stock units that can range from 0-200% based on relative total shareholder return from January 1, 2026 to December 31, 2028, with vesting in 2029. Concurrently, Mahoney sold 776 shares at $155.18 per share to cover tax withholding obligations from the vesting of previous restricted stock unit grants from May 2023, 2024, and 2025. Following these transactions, his total holdings were 15,877 shares, with 13,221 shares subject to forfeiture from unvested restricted stock units. The filing demonstrates ongoing executive compensation through equity awards while managing tax liabilities through share sales.