4processed

Form 4 — Insider Transaction

AXCELIS TECHNOLOGIES INC(ACLS)

Filing Date

June 16, 2026

Accepted

June 16, 2026

Accession No.

0002123863-26-000006

CIK

0001113232

Insider Transactions

InsiderTitleTypeSharesPriceValueOwned AfterSecurityDate
Ryzhik DavidSVP Interim CFOOther76$176.84510.0KCommon StockJun 16, 2026