Axcelis Technologies Inc SEC filings ACLS
Axcelis Technologies Inc has 1,003 filings in SEC EDGAR's recent list, going back to May 29, 2012. Its latest annual report, Form ARS, was filed on Mar 31, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 5, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 5, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 10-Q | Quarterly report | Nov 5, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Results of operations
|
Nov 5, 2026 | Nov 5, 2026 |
| 425 | Filing | Nov 2, 2026 | — |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Nov 2, 2026 | Nov 2, 2026 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Oct 27, 2026 | Oct 24, 2026 |
| 10-Q | Quarterly report | Aug 6, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 6, 2026 | Aug 6, 2026 |
| SD | Specialized disclosure (conflict minerals) | May 27, 2026 | — |
| 10-Q | Quarterly report | May 8, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
May 7, 2026 | May 7, 2026 |
| 8-K |
Current report
Shareholder vote results
|
May 6, 2026 | May 5, 2026 |
| 425 | Filing | Apr 29, 2026 | — |
| ARS | Annual report to shareholders | Mar 31, 2026 | Dec 31, 2025 |
| DEF 14A | Proxy statement | Mar 31, 2026 | May 5, 2026 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Mar 12, 2026 | Mar 10, 2026 |
| 10-K | Annual report | Feb 26, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations
|
Feb 17, 2026 | Feb 17, 2026 |
| 425 | Filing | Feb 12, 2026 | — |
| 425 | Filing | Feb 6, 2026 | — |
| 8-K |
Current report
Shareholder vote results, Regulation FD disclosure
|
Feb 6, 2026 | Feb 6, 2026 |
| 425 | Filing | Feb 2, 2026 | — |
| 8-K |
Current report
Other events
|
Feb 2, 2026 | Jan 22, 2026 |
| 8-K |
Current report
Other events
|
Jan 28, 2026 | Jan 28, 2026 |
| 425 | Filing | Jan 28, 2026 | — |
| EFFECT | Filing | Dec 31, 2025 | — |
| 424B3 | Prospectus | Dec 31, 2025 | — |
| CORRESP | Letter to the SEC | Dec 29, 2025 | — |
| S-4/A | Filing | Dec 29, 2025 | — |
| S-4 | Registration for a merger or exchange | Dec 8, 2025 | — |
| 10-Q | Quarterly report | Nov 6, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 4, 2025 | Nov 4, 2025 |
| 425 | Filing | Oct 1, 2025 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Oct 1, 2025 | Oct 1, 2025 |
| 425 | Filing | Oct 1, 2025 | — |
| 8-K |
Current report
Material agreement, Other events
|
Oct 1, 2025 | Oct 1, 2025 |
| 10-Q | Quarterly report | Aug 5, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 5, 2025 | Aug 5, 2025 |
| S-8 | Employee stock plan registration | May 29, 2025 | — |
| 8-K |
Current report
Officer or director change, Shareholder vote results, Other events
|
May 8, 2025 | May 7, 2025 |
| 10-Q | Quarterly report | May 6, 2025 | Mar 31, 2025 |
| SD | Specialized disclosure (conflict minerals) | May 6, 2025 | — |
| 8-K |
Current report
Results of operations
|
May 6, 2025 | May 6, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Apr 21, 2025 | Apr 21, 2025 |
| ARS | Annual report to shareholders | Mar 31, 2025 | Dec 31, 2024 |
| DEF 14A | Proxy statement | Mar 31, 2025 | May 7, 2025 |
| 8-K |
Current report
Other events
|
Mar 12, 2025 | Mar 12, 2025 |
| 10-K | Annual report | Feb 28, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations
|
Feb 10, 2025 | Feb 10, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 10, 2025 | Jan 10, 2025 |
| 10-Q | Quarterly report | Nov 7, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 6, 2024 | Nov 6, 2024 |
| 10-Q | Quarterly report | Aug 1, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations
|
Jul 31, 2024 | Jul 31, 2024 |
| 8-K |
Current report
Results of operations
|
Jul 9, 2024 | Jul 9, 2024 |
| SD | Specialized disclosure (conflict minerals) | May 17, 2024 | — |
| 8-K |
Current report
Officer or director change, Bylaw or fiscal year change, Shareholder vote results, Other events
|
May 9, 2024 | May 9, 2024 |
| 10-Q | Quarterly report | May 2, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations
|
May 1, 2024 | May 1, 2024 |
| ARS | Annual report to shareholders | Mar 29, 2024 | Dec 31, 2023 |
| DEF 14A | Proxy statement | Mar 29, 2024 | May 9, 2024 |
| PRE 14A | Preliminary proxy statement | Mar 8, 2024 | May 9, 2024 |
| 8-K |
Current report
Officer or director change, Other events
|
Feb 29, 2024 | Feb 28, 2024 |
| 10-K/A | Amended annual report | Feb 28, 2024 | Dec 31, 2023 |
| 10-K | Annual report | Feb 23, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Results of operations
|
Feb 7, 2024 | Feb 7, 2024 |
| 10-Q | Quarterly report | Nov 2, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Results of operations
|
Nov 1, 2023 | Nov 1, 2023 |
| 8-K |
Current report
Officer or director change
|
Sep 5, 2023 | Sep 5, 2023 |
| S-3ASR | Automatic shelf registration | Aug 3, 2023 | — |
| 10-Q | Quarterly report | Aug 3, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Results of operations
|
Aug 2, 2023 | Aug 2, 2023 |
| SD | Specialized disclosure (conflict minerals) | May 18, 2023 | — |
| 8-K |
Current report
Officer or director change, Shareholder vote results, Other events
|
May 12, 2023 | May 11, 2023 |
| 10-Q | Quarterly report | May 5, 2023 | Mar 31, 2023 |
| 8-K |
Current report
Results of operations
|
May 3, 2023 | May 3, 2023 |
| 8-K |
Current report
Other events
|
Apr 18, 2023 | Feb 24, 2023 |
| ARS | Annual report to shareholders | Mar 31, 2023 | Dec 31, 2022 |
| DEF 14A | Proxy statement | Mar 31, 2023 | — |
| 10-K | Annual report | Feb 24, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Results of operations
|
Feb 8, 2023 | Feb 8, 2023 |
| 10-Q | Quarterly report | Nov 3, 2022 | Sep 30, 2022 |
| 8-K |
Current report
Results of operations
|
Nov 2, 2022 | Nov 2, 2022 |
| 10-Q | Quarterly report | Aug 4, 2022 | Jun 30, 2022 |
| 8-K |
Current report
Results of operations
|
Aug 3, 2022 | Aug 3, 2022 |
| SD | Specialized disclosure (conflict minerals) | May 20, 2022 | — |
| 8-K |
Current report
Officer or director change, Bylaw or fiscal year change, Shareholder vote results, Other events
|
May 11, 2022 | May 10, 2022 |
| 10-Q | Quarterly report | May 5, 2022 | Mar 31, 2022 |
| 8-K |
Current report
Results of operations
|
May 4, 2022 | May 4, 2022 |
| DEF 14A | Proxy statement | Mar 30, 2022 | May 10, 2022 |
| 10-K | Annual report | Feb 25, 2022 | Dec 31, 2021 |
| 8-K |
Current report
Officer or director change, Other events
|
Feb 24, 2022 | Feb 23, 2022 |
| 8-K |
Current report
Results of operations
|
Feb 7, 2022 | Feb 7, 2022 |
| 10-Q | Quarterly report | Nov 5, 2021 | Sep 30, 2021 |
| 8-K |
Current report
Results of operations
|
Nov 3, 2021 | Nov 3, 2021 |
| 10-Q | Quarterly report | Aug 6, 2021 | Jun 30, 2021 |
| 8-K |
Current report
Results of operations
|
Aug 4, 2021 | Aug 4, 2021 |
| SD | Specialized disclosure (conflict minerals) | May 18, 2021 | — |
| 8-K |
Current report
Shareholder vote results, Other events
|
May 13, 2021 | May 12, 2021 |
| 10-Q | Quarterly report | May 6, 2021 | Mar 31, 2021 |
| 8-K |
Current report
Results of operations
|
May 4, 2021 | May 4, 2021 |
| DEF 14A | Proxy statement | Mar 25, 2021 | May 12, 2021 |
| 10-K | Annual report | Feb 26, 2021 | Dec 31, 2020 |
| 8-K |
Current report
Results of operations
|
Feb 10, 2021 | Feb 10, 2021 |
| 10-Q | Quarterly report | Nov 6, 2020 | Sep 30, 2020 |
| 8-K |
Current report
Results of operations
|
Nov 5, 2020 | Nov 5, 2020 |
| 10-Q | Quarterly report | Aug 5, 2020 | Jun 30, 2020 |
| 8-K |
Current report
Material agreement, Results of operations, New debt
|
Aug 4, 2020 | Jul 31, 2020 |
| S-3ASR | Automatic shelf registration | May 29, 2020 | — |
| S-8 | Employee stock plan registration | May 29, 2020 | — |
| SD | Specialized disclosure (conflict minerals) | May 22, 2020 | — |
| 8-K/A |
Amended current report
Officer or director change, Shareholder vote results
|
May 21, 2020 | May 19, 2020 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 21, 2020 | May 19, 2020 |
| 10-Q | Quarterly report | May 6, 2020 | Mar 31, 2020 |
| 8-K |
Current report
Results of operations
|
May 5, 2020 | May 5, 2020 |
| DEF 14A | Proxy statement | Mar 30, 2020 | May 19, 2020 |
| 10-K | Annual report | Mar 2, 2020 | Dec 31, 2019 |
| 8-K |
Current report
Results of operations
|
Feb 5, 2020 | Feb 5, 2020 |
| 8-K |
Current report
Other events
|
Dec 3, 2019 | Dec 3, 2019 |
| 10-Q | Quarterly report | Nov 7, 2019 | Sep 30, 2019 |
| 8-K |
Current report
Results of operations
|
Oct 31, 2019 | Oct 31, 2019 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 24, 2019 | Sep 24, 2019 |
| 8-K |
Current report
Officer or director change, Other events
|
Aug 15, 2019 | Aug 14, 2019 |
| 10-Q | Quarterly report | Aug 7, 2019 | Jun 30, 2019 |
| 8-K |
Current report
Results of operations
|
Aug 6, 2019 | Aug 6, 2019 |
| SD | Specialized disclosure (conflict minerals) | May 22, 2019 | — |
| S-8 | Employee stock plan registration | May 21, 2019 | — |
| 8-K |
Current report
Officer or director change, Shareholder vote results, Other events
|
May 15, 2019 | May 14, 2019 |
| 10-Q | Quarterly report | May 8, 2019 | Mar 31, 2019 |
| 8-K |
Current report
Results of operations
|
May 7, 2019 | May 7, 2019 |
| DEF 14A | Proxy statement | Mar 27, 2019 | May 14, 2019 |
| 10-K | Annual report | Mar 11, 2019 | Dec 31, 2018 |
| 8-K |
Current report
Results of operations
|
Feb 6, 2019 | Feb 6, 2019 |
| 10-Q | Quarterly report | Nov 2, 2018 | Sep 30, 2018 |
| 8-K |
Current report
Results of operations
|
Nov 1, 2018 | Nov 1, 2018 |
| 10-Q | Quarterly report | Aug 3, 2018 | Jun 30, 2018 |
| 8-K |
Current report
Results of operations
|
Aug 2, 2018 | Aug 2, 2018 |
| SD | Specialized disclosure (conflict minerals) | May 24, 2018 | — |
| 8-K |
Current report
Officer or director change, Shareholder vote results, Other events
|
May 18, 2018 | May 16, 2018 |
| 10-Q | Quarterly report | May 4, 2018 | Mar 31, 2018 |
| 8-K |
Current report
Results of operations
|
May 2, 2018 | May 2, 2018 |
| DEF 14A | Proxy statement | Mar 27, 2018 | May 16, 2018 |
| 10-K | Annual report | Mar 14, 2018 | Dec 31, 2017 |
| 8-K |
Current report
Results of operations
|
Feb 6, 2018 | Feb 6, 2018 |
| 10-Q | Quarterly report | Nov 3, 2017 | Sep 30, 2017 |
| 8-K |
Current report
Results of operations
|
Nov 2, 2017 | Nov 2, 2017 |
| UPLOAD | Letter from the SEC | Sep 19, 2017 | — |
| CORRESP | Letter to the SEC | Sep 8, 2017 | — |
| UPLOAD | Letter from the SEC | Sep 6, 2017 | — |
| 10-Q | Quarterly report | Aug 4, 2017 | Jun 30, 2017 |
| 8-K |
Current report
Results of operations
|
Aug 3, 2017 | Aug 3, 2017 |
| S-8 | Employee stock plan registration | May 25, 2017 | — |
| SD | Specialized disclosure (conflict minerals) | May 24, 2017 | — |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 17, 2017 | May 16, 2017 |
| 10-Q | Quarterly report | May 5, 2017 | Mar 31, 2017 |
| 8-K |
Current report
Results of operations
|
May 4, 2017 | May 4, 2017 |
| EFFECT | Filing | Apr 14, 2017 | — |
| CORRESP | Letter to the SEC | Apr 12, 2017 | — |
| UPLOAD | Letter from the SEC | Apr 12, 2017 | — |
| S-3 | Shelf registration | Apr 7, 2017 | — |
| DEF 14A | Proxy statement | Mar 29, 2017 | May 16, 2017 |
| 10-K | Annual report | Mar 14, 2017 | Dec 31, 2016 |
| 8-K |
Current report
Other events
|
Feb 21, 2017 | Feb 15, 2017 |
| 8-K |
Current report
Results of operations
|
Feb 1, 2017 | Feb 1, 2017 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 25, 2017 | Jan 21, 2017 |
| 10-Q | Quarterly report | Nov 3, 2016 | Sep 30, 2016 |
| 8-K |
Current report
Results of operations
|
Nov 2, 2016 | Nov 2, 2016 |
| 10-Q | Quarterly report | Aug 8, 2016 | Jun 30, 2016 |
| 8-K |
Current report
Results of operations
|
Aug 2, 2016 | Aug 2, 2016 |
| 8-K |
Current report
Bylaw or fiscal year change, Other events
|
Jul 5, 2016 | Jun 30, 2016 |
| S-8 | Employee stock plan registration | May 27, 2016 | — |
| SD | Specialized disclosure (conflict minerals) | May 27, 2016 | — |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 5, 2016 | May 4, 2016 |
| 10-Q | Quarterly report | May 5, 2016 | Mar 31, 2016 |
| 8-K |
Current report
Results of operations
|
May 2, 2016 | May 2, 2016 |
| DEFA14A | Additional proxy material | Apr 12, 2016 | — |
| 8-K |
Current report
Other events
|
Apr 11, 2016 | Apr 11, 2016 |
| DEFA14A | Additional proxy material | Apr 11, 2016 | — |
| DEFA14A | Additional proxy material | Apr 4, 2016 | — |
| DEF 14A | Proxy statement | Mar 14, 2016 | Apr 4, 2016 |
| 10-K | Annual report | Mar 4, 2016 | Dec 31, 2015 |
| PRE 14A | Preliminary proxy statement | Feb 29, 2016 | Apr 4, 2016 |
| 8-K |
Current report
Results of operations
|
Feb 2, 2016 | Feb 2, 2016 |
| 10-Q | Quarterly report | Nov 5, 2015 | Sep 30, 2015 |
| 8-K |
Current report
Results of operations
|
Nov 4, 2015 | Nov 4, 2015 |
| 10-Q | Quarterly report | Aug 5, 2015 | Jun 30, 2015 |
| 8-K |
Current report
Results of operations
|
Aug 4, 2015 | Aug 4, 2015 |
| S-8 | Employee stock plan registration | May 29, 2015 | — |
| SD | Specialized disclosure (conflict minerals) | May 22, 2015 | — |
| 8-K |
Current report
Officer or director change, Shareholder vote results, Other events
|
May 14, 2015 | May 13, 2015 |
| 10-Q | Quarterly report | May 6, 2015 | Mar 31, 2015 |
| 8-K |
Current report
Results of operations
|
May 5, 2015 | May 5, 2015 |
| ARS | Annual report to shareholders | Mar 25, 2015 | Dec 31, 2014 |
| DEF 14A | Proxy statement | Mar 25, 2015 | May 13, 2015 |
| 10-K/A | Amended annual report | Mar 12, 2015 | Dec 31, 2014 |
| 10-K | Annual report | Mar 11, 2015 | Dec 31, 2014 |
| 8-K |
Current report
Other events
|
Mar 6, 2015 | Mar 5, 2015 |
| DEFA14A | Additional proxy material | Mar 6, 2015 | — |
| DFAN14A | Filing | Mar 3, 2015 | — |
| PRE 14A | Preliminary proxy statement | Mar 3, 2015 | May 13, 2015 |
| DEFA14A | Additional proxy material | Feb 13, 2015 | — |
Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Special Industry Machinery, NEC (SIC 3559)
- Listed as
- ACLS (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Beverly, MA
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1113232
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.