Form 4 for ACLS AXCELIS TECHNOLOGIES INC
Accepted 2026-05-21 17:05:18 ET · period of report 2026-05-20 · accession 0001990732-26-000008 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-05-21 17:05 | 2026-05-20 | ACLS | Tatnall Christopher | EVP Gbl Customer Ops | S - Sale | $149.75 | -1,166 | 27.6K | -4% | -$174.6K |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-05-20 | S | D | 1,166 | $149.75 | 27,627 | D | — | — | (F1) Of the shares held after this sale on May 20, 2026, 20,871 shares were issuable on vesting of restricted stock units granted to the reporting person under the 2012 Equity Incentive Plan and are subject to forfeiture. |