Form 4: Axcelis EVP Sells Shares for Tax Withholding

Axcelis Technologies EVP Greg Redinbo disposed of 723 shares of common stock to cover tax withholding obligations related to vested performance-based restricted stock units.

Summary

• Greg Redinbo, Executive Vice President of Marketing and Applications at Axcelis Technologies Inc. (ACLS), reported a transaction involving the disposition of common stock.
• The transaction on March 2, 2026, involved the forfeiture of 723 shares of common stock for tax withholding purposes.
• This forfeiture was related to the vesting of performance-based restricted stock units (2024 PRSUs) granted in May 2024.
• The Axcelis Technologies, Inc. Compensation Committee determined on February 13, 2025, that 150% of the 2024 PRSUs were earned.
• Half of the earned shares vested on February 28, 2025, and the remaining half vested on February 28, 2026.
• The shares were valued at $86.58 per share, representing the closing price on March 2, 2026, the date of the tax withholding.
• Following this transaction, Mr. Redinbo beneficially owns 31,938 shares of common stock directly.
• Of the beneficially owned shares, 16,984 are issuable upon vesting of restricted stock units granted under the 2012 Equity Incentive Plan and remain subject to forfeiture.

Sentiment

Score: 7

Explanation: StockSavvy.ai views this as a largely neutral event, as it's a mandatory tax-related sale. The underlying vesting of 150% of PRSUs is a positive signal regarding executive performance against targets.

Positives

• The Compensation Committee determined that 150% of the 2024 performance-based restricted stock units were earned, indicating strong performance against set targets.

Risks

• 16,984 of the beneficially owned shares are issuable upon vesting of restricted stock units granted under the 2012 Equity Incentive Plan and are subject to forfeiture, representing a potential future reduction in holdings if vesting conditions are not met.

Future Outlook

The filing primarily reports a past insider transaction and does not contain explicit forward-looking statements or guidance regarding the company's future performance or strategic direction.

Industry Context

StockSavvy.ai notes that insider transactions, particularly those related to tax withholding on vested equity awards, are common occurrences in publicly traded companies, especially in the semiconductor equipment industry where executive compensation often includes significant equity components. This type of transaction is generally not indicative of management's view on the company's future prospects but rather a standard administrative event.

Comparison to Industry Standards

• This Form 4 details a routine insider transaction for tax purposes, which does not lend itself to direct comparison with specific industry projects or results.
• Executive compensation structures involving performance-based restricted stock units are standard practice across the technology and semiconductor sectors, similar to companies like Applied Materials (AMAT) or KLA Corporation (KLAC).
• The 150% earning of PRSUs suggests strong individual or company performance against set targets, which is a positive indicator for executive incentive alignment.

Stakeholder Impact

• Shareholders: Minimal direct impact as it's a routine tax-related sale, but the underlying performance-based vesting suggests executive incentives are aligned with company performance.

Key Dates

Keywords

Axcelis Technologies, ACLS, Form 4, insider transaction, tax withholding, restricted stock units, executive compensation, Greg Redinbo