As of October 27, 2026, Axcelis Technologies Inc. is a publicly traded company (Nasdaq: ACLS); its largest reported holder is Fidelity (FMR), with 13.4% on Schedule 13G/A of August 6, 2026, then Vanguard (8.14%). The largest insider holding is Russell Low, the chief executive and president, with 154,900 shares (0.50% of shares outstanding), per Form 4 of May 20, 2026 (Schedule 13G/A, August 6, 2026).
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Is Axcelis Technologies Inc. a real, registered company?
- Axcelis Technologies Inc files with the SEC under CIK 1113232 (its SEC filings).
- Its shares are listed under the ticker ACLS on Nasdaq (SEC company record).
- Incorporated in Delaware; business address in Beverly, Massachusetts, as its SEC filings state.
- Court and bankruptcy records: see Before you sign or pay below.
Before you sign or pay
- Court and bankruptcy: No federal court case or bankruptcy filing found under AXCELIS TECHNOLOGIES INC in our court records and SEC 8-K records (as of 2026-10-27).
- Ownership: 5%+ holders are reported on Schedule 13D or 13G; the latest names Fidelity (FMR) (filed 2026-08-06).
Who are Axcelis Technologies Inc.'s owners and officers?
Axcelis Technologies Inc.: incorporated in Delaware; business address in Beverly, Massachusetts; industry Special Industry Machinery, NEC (Schedule 13G/A, 2026-08-06).
| Report | Holder | Share |
|---|---|---|
| Schedule 13G/A, 2026-08-06 | Fmr LLC | 13.4% |
| Schedule 13G/A, 2026-07-14 | Reinhart Partners, LLC. | 3% |
| Schedule 13G/A, 2026-05-07 | Fmr LLC | 11.3% |
| Schedule 13G, 2026-05-06 | Fmr LLC | 7.9% |
| Schedule 13G, 2026-04-29 | Vanguard Capital Management | 5.26% |
| Schedule 13G, 2026-04-28 | Vanguard Portfolio Management | 8.14% |
| Schedule 13G/A, 2026-03-26 | The Vanguard Group | 0% |
| Schedule 13G, 2026-02-12 | Reinhart Partners, LLC. | 5.2% |
| Schedule 13G/A, 2025-11-14 | American Century Investment Management, Inc. | 4.3% |
| Schedule 13G, 2025-08-14 | American Century Investment Management, Inc. | 5.2% |
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What the Full Report on Axcelis Technologies Inc. covers
The Short Answer
Which Company This Is
What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
Warning Bells
Sources
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Which insiders own Axcelis Technologies Inc. shares?
Directors, officers and holders of 10% or more report their shares on Forms 3, 4 and 5. Each line is the latest such report, largest holding first.
- , the chief executive and president: 154,900 shares (0.50% of shares outstanding) (Form 4, 2026-05-20).
- , the chief financial officer and executive vice president: 37,144 shares (0.12% of shares outstanding) (Form 4, 2026-03-03).
- , the executive vice president and chief strategy officer: 34,816 shares (0.11% of shares outstanding) (Form 4, 2026-09-16).
- , a director: 32,990 shares (0.11% of shares outstanding) (Form 4, 2026-05-20).
- , the general counsel and executive vice president: 31,295 shares (0.10% of shares outstanding) (Form 4, 2026-05-22).
Shares outstanding: 30,881,489 as of 2026-08-03, from the company's latest SEC cover page.
How much has Axcelis Technologies Inc. raised?
No fundraising or offering filing from Axcelis Technologies Inc. is on file with us.
Keep reading
More on Axcelis Technologies Inc. and the records around it.
Axcelis Technologies Inc. elsewhere on the record
- 5%+ stake filings Aug 2026
Companies that share a holder
- REINHART PARTNERS, LLC. also filed stake reports on 7 other companies: AdaptHealth Corp. (Oct 2026), Hillman Solutions Corp. (Oct 2026), YETI Holdings, Inc. (Oct 2026)
- American Century Investment Management, Inc. also filed stake reports on 83 other companies: Visteon Corporation (Oct 2026), MarineMax, Inc. (Sep 2026), AdvanSix Inc. (Aug 2026)
- FMR LLC also filed stake reports on 713 other companies: ALLEGRO MICROSYSTEMS INC (Oct 2026), ASTERA LABS INC (Oct 2026), BRP INC (Oct 2026)
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