AXCELIS TECHNOLOGIES INC - ACLS
All tracked SEC files for this issuer. Showing up to 200 latest records.
Need parsed ownership details (13D/13G with shares/percent)?
Open ownership details
Form 4 = insider transactions report. Form 144 = notice of proposed sale (not a completed trade confirmation).
Files summary
Total files loaded: 78
Latest filed: May 22, 2026
| Form | Count |
|---|---|
| 4 | 46 |
| 144 | 19 |
| 8-K | 7 |
| SCHEDULE 13G | 4 |
| SCHEDULE 13G/A | 2 |
Latest files
| Filed | Form | Report period | Accession | SEC |
|---|---|---|---|---|
| May 22, 2026 | 4 | May 22, 2026 | 0001715912-26-000005 | View |
| May 22, 2026 | 4 | May 21, 2026 | 0001979418-26-000008 | View |
| May 22, 2026 | 144 | — | 0001950047-26-004961 | View |
| May 22, 2026 | 144 | — | 0001950047-26-004965 | View |
| May 21, 2026 | 144 | — | 0001950047-26-004924 | View |
| May 21, 2026 | 4 | May 20, 2026 | 0001990732-26-000008 | View |
| May 20, 2026 | 4 | May 19, 2026 | 0001908822-26-000004 | View |
| May 20, 2026 | 4 | May 19, 2026 | 0001184588-26-000004 | View |
| May 20, 2026 | 4 | May 19, 2026 | 0001208109-26-000004 | View |
| May 20, 2026 | 4 | May 18, 2026 | 0001689237-26-000014 | View |
| May 20, 2026 | 4 | May 18, 2026 | 0001940017-26-000008 | View |
| May 20, 2026 | 4 | May 18, 2026 | 0002101601-26-000010 | View |
| May 20, 2026 | 4 | May 18, 2026 | 0002124265-26-000008 | View |
| May 20, 2026 | 144 | — | 0001950047-26-004819 | View |
| May 19, 2026 | 4 | May 15, 2026 | 0001689237-26-000012 | View |
| May 19, 2026 | 4 | May 15, 2026 | 0001715912-26-000003 | View |
| May 19, 2026 | 4 | May 15, 2026 | 0001940017-26-000006 | View |
| May 19, 2026 | 4 | May 15, 2026 | 0001990732-26-000006 | View |
| May 19, 2026 | 4 | May 15, 2026 | 0001979418-26-000006 | View |
| May 19, 2026 | 4 | May 15, 2026 | 0002101601-26-000008 | View |
| May 19, 2026 | 4 | May 15, 2026 | 0002123863-26-000004 | View |
| May 19, 2026 | 4 | May 15, 2026 | 0002124265-26-000006 | View |
| May 19, 2026 | 144 | — | 0001950047-26-004737 | View |
| May 19, 2026 | 144 | — | 0001950047-26-004739 | View |
| May 19, 2026 | 144 | — | 0001950047-26-004740 | View |
| May 18, 2026 | 4 | May 15, 2026 | 0001738290-26-000003 | View |
| May 18, 2026 | 4 | May 15, 2026 | 0001208109-26-000002 | View |
| May 18, 2026 | 4 | May 15, 2026 | 0001184588-26-000002 | View |
| May 18, 2026 | 4 | May 15, 2026 | 0001338515-26-000002 | View |
| May 18, 2026 | 4 | May 15, 2026 | 0001908822-26-000002 | View |
| May 18, 2026 | 4 | May 15, 2026 | 0001339595-26-000006 | View |
| May 18, 2026 | 4 | May 15, 2026 | 0001385162-26-000009 | View |
| May 15, 2026 | 4 | May 14, 2026 | 0001979418-26-000004 | View |
| May 15, 2026 | 4 | May 14, 2026 | 0002124265-26-000004 | View |
| May 14, 2026 | 144 | — | 0001950047-26-004509 | View |
| May 14, 2026 | 4 | May 13, 2026 | 0001385162-26-000004 | View |
| May 14, 2026 | 4 | May 13, 2026 | 0001940017-26-000004 | View |
| May 14, 2026 | 144 | — | 0001950047-26-004496 | View |
| May 13, 2026 | 4 | May 12, 2026 | 0002101601-26-000006 | View |
| May 13, 2026 | 144 | — | 0001950047-26-004442 | View |
| May 13, 2026 | 144 | — | 0001950047-26-004444 | View |
| May 12, 2026 | 144 | — | 0001950047-26-004419 | View |
| May 07, 2026 | 4 | May 06, 2026 | 0001689237-26-000010 | View |
| May 07, 2026 | 8-K | May 07, 2026 | 0001104659-26-057147 | View |
| May 07, 2026 | SCHEDULE 13G/A | — | 0000315066-26-001375 | View |
| May 06, 2026 | 144 | — | 0001950047-26-004141 | View |
| May 06, 2026 | 8-K | May 05, 2026 | 0001104659-26-056230 | View |
| May 06, 2026 | SCHEDULE 13G | — | 0000315066-26-001121 | View |
| May 04, 2026 | 4 | May 01, 2026 | 0001689237-26-000008 | View |
| May 01, 2026 | 144 | — | 0001950047-26-003918 | View |
| Apr 29, 2026 | SCHEDULE 13G | — | 0002100119-26-000251 | View |
| Apr 28, 2026 | SCHEDULE 13G | — | 0002100121-26-000132 | View |
| Apr 21, 2026 | 4 | Apr 20, 2026 | 0001990732-26-000004 | View |
| Apr 02, 2026 | 4 | Apr 01, 2026 | 0001689237-26-000006 | View |
| Apr 01, 2026 | 144 | — | 0001950047-26-003176 | View |
| Mar 26, 2026 | SCHEDULE 13G/A | — | 0000102909-26-000740 | View |
| Mar 26, 2026 | 4 | Mar 24, 2026 | 0001689237-26-000004 | View |
| Mar 24, 2026 | 144 | — | 0001950047-26-002963 | View |
| Mar 12, 2026 | 8-K | Mar 10, 2026 | 0001104659-26-027104 | View |
| Mar 03, 2026 | 4 | Mar 02, 2026 | 0001689237-26-000002 | View |
| Mar 03, 2026 | 4 | Mar 02, 2026 | 0001797868-26-000002 | View |
| Mar 03, 2026 | 4 | Mar 02, 2026 | 0001940017-26-000002 | View |
| Mar 03, 2026 | 4 | Mar 02, 2026 | 0001979418-26-000002 | View |
| Mar 03, 2026 | 4 | Mar 02, 2026 | 0001990732-26-000002 | View |
| Mar 03, 2026 | 4 | Mar 02, 2026 | 0002101601-26-000004 | View |
| Feb 23, 2026 | 4 | Feb 20, 2026 | 0001385162-26-000002 | View |
| Feb 20, 2026 | 144 | — | 0001950047-26-001587 | View |
| Feb 17, 2026 | 8-K | Feb 17, 2026 | 0001104659-26-016391 | View |
| Feb 12, 2026 | SCHEDULE 13G | — | 0001080298-26-000004 | View |
| Feb 06, 2026 | 8-K | Feb 06, 2026 | 0001104659-26-011577 | View |
| Feb 02, 2026 | 8-K | Jan 22, 2026 | 0001104659-26-008916 | View |
| Jan 28, 2026 | 8-K | Jan 28, 2026 | 0001104659-26-007482 | View |
| Jan 16, 2026 | 4 | Jan 15, 2026 | 0002101601-26-000002 | View |
| Dec 18, 2025 | 4 | Dec 16, 2025 | 0001715912-25-000004 | View |
| Dec 18, 2025 | 4 | Dec 17, 2025 | 0001385162-25-000004 | View |
| Dec 17, 2025 | 144 | — | 0001950047-25-010441 | View |
| Dec 12, 2025 | 4 | Dec 11, 2025 | 0001979418-25-000004 | View |
| Dec 11, 2025 | 144 | — | 0001950047-25-010134 | View |