Quirk Jeanne 4

What Happened Jeanne Quirk, a director of Axcelis Technologies (ACLS), sold 1,789 shares in an open-market transaction on May 19, 2026, at $140.22 per share for a total of approximately $250,854. This was a sale (not a purchase or option exercise), which insiders often execute for routine personal reasons.

Key Details

• Transaction date and price: May 19, 2026 — 1,789 shares sold at $140.22 each.
• Transaction value: ~ $250,854.
• Filing: Form 4 filed May 20, 2026 (the day after the transaction), which is timely.
• Shares held after the sale: the filing notes that of the shares held after this sale, 1,440 were issuable on vesting of restricted stock units and remain subject to forfeiture.
• Transaction code: S (Sale) — listed as an open-market or private sale.

Context Sales by directors can be routine and do not by themselves indicate company performance or insider sentiment. No option exercises, grants, or 10b5-1 plan details were reported in this filing.