4processed

Form 4 — Insider Transaction

AXCELIS TECHNOLOGIES INC(ACLS)

Filing Date

June 2, 2026

Accepted

June 2, 2026

Accession No.

0002101601-26-000012

CIK

0001113232

Insider Transactions

InsiderTitleTypeSharesPriceValueOwned AfterSecurityDate
Mahoney Robert JohnEVP Global OperationsOther1.2K$155.2414.4KCommon StockJun 2, 2026