InsiderTrades

Form 4 for ACLS AXCELIS TECHNOLOGIES INC

Accepted 2026-05-18 17:05:14 ET · period of report 2026-05-15 · accession 0001338515-26-000002 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
2026-05-18 17:05 2026-05-15 ACLS Sayiner Necip Dir A - Grant $0.00 +1,440 8,698 +20% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-05-15 A A 1,440 $0.00 8,698 D — — (F1) These shares are issuable on vesting of restricted stock units granted under the Company's 2012 Equity Incentive Plan on May 15, 2026. Assuming completion of the director's current term of service on the Board of Directors, these restricted stock units will vest on May 15, 2027. (F2) Of the shares held as of May 15, 2026, 2,110 were issuable on vesting of restricted stock units granted to the director under the 2012 Equity Incentive Plan and are subject to forfeiture.