Axcelis Technologies Inc
ACLS- Exchange
- Nasdaq
- Industry
- Special Industry Machinery, NEC
- SEC CIK
- 0001113232
No open-market purchases or sales by Axcelis Technologies Inc insiders were filed in the last 90 days; 443 institutions reported holding it in 13F filings for Q2 2026, worth $5.85B in total; Maverick Capital is the only superinvestor holding it.
13F holders, Q4 2025
Institutional positions in Axcelis Technologies Inc as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 373
- +16 vs. Q3 2025
- Shares held
- 31.3M
- +955.3K (+3.1%) vs. Q3 2025
- Total value
- $2.52B
- −$433.0M (−14.7%) vs. Q3 2025
- New holders
- 67
- 121 more added
- Sold out
- 51
- 121 more reduced
5 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ACLS on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 443 | $5.85B |
| Q1 2026 | 380 | $3.03B |
| Q4 2025 | 373 | $2.52B |
| Q3 2025 | 362 | $2.96B |
| Q2 2025 | 330 | $2.20B |
| Q1 2025 | 307 | $1.54B |
| Q4 2024 | 325 | $2.16B |
| Q3 2024 | 369 | $3.17B |
| Q2 2024 | 393 | $4.35B |
| Q1 2024 | 385 | $3.37B |
| Q4 2023 | 421 | $3.81B |
| Q3 2023 | 421 | $4.85B |
| Q2 2023 | 406 | $5.41B |
| Q1 2023 | 379 | $3.86B |
| Q4 2022 | 327 | $2.31B |
| Q3 2022 | 287 | $1.72B |
| Q2 2022 | 277 | $1.52B |
| Q1 2022 | 290 | $2.05B |
| Q4 2021 | 254 | $2.05B |
| Q3 2021 | 205 | $1.37B |
| Q2 2021 | 189 | $1.17B |
| Q1 2021 | 193 | $1.20B |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Axcelis Technologies Inc; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Inceptionr LLC | 0 | $0 | 0.00% | −2,267−100.0% | Sold out |
| Bridgewater Associates, LP | 0 | $0 | 0.00% | −2,224−100.0% | Sold out |
| denkapparat Operations GmbH | 0 | $0 | 0.00% | −2,168−100.0% | Sold out |
| Acadian Asset Management LLC | 0 | $0 | 0.00% | −2,133−100.0% | Sold out |
| PEAK6 LLC | 0 | $0 | 0.00% | −1,005−100.0% | Sold out |
| Future Financial Wealth Managment LLC | 0 | $0 | 0.00% | −1,000−100.0% | Sold out |
| ISAM Funds (UK) Ltd | 0 | $0 | 0.00% | −973−100.0% | Sold out |
| Salem Investment Counselors Inc | 0 | $0 | 0.00% | −685−100.0% | Sold out |
| Wexford Capital LP | 0 | $0 | 0.00% | −570−100.0% | Sold out |
| Caitlin John, LLC | 0 | $0 | 0.00% | −324−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −323−100.0% | Sold out |
| National Bank of Canada | 0 | $0 | 0.00% | −248−100.0% | Sold out |
| Wealthspire Advisors, LLC | 0 | $0 | 0.00% | −234−100.0% | Sold out |
| Aster Capital Management (DIFC) Ltd | 0 | $0 | 0.00% | −189−100.0% | Sold out |
| TD Waterhouse Canada Inc. | 0 | $0 | 0.00% | −71−100.0% | Sold out |
| GPS Wealth Strategies Group, LLC | 0 | $0 | 0.00% | −50−100.0% | Sold out |
| Stone House Investment Management, LLC | 0 | $0 | 0.00% | −44−100.0% | Sold out |
| Quarry LP | 0 | $0 | 0.00% | −33−100.0% | Sold out |
| Rise Advisors, LLC | 0 | $0 | 0.00% | −22−100.0% | Sold out |
| South State Corp. | 0 | $0 | 0.00% | −16−100.0% | Sold out |
| Atlantic Trust, LLC | 0 | $0 | 0.00% | −9−100.0% | Sold out |
| Breakwater Investment Management | 0 | $0 | 0.00% | −6−100.0% | Sold out |
| Cloud Capital Management, LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Colony Group, LLC | 0 | $0 | 0.00% | −4,206−100.0% | Sold out |
| AXA Investment Managers S.A. | – | – | – | – | Not filed |
| CIBC Bancorp USA Inc. | – | – | – | – | Not filed |
| Shell Asset Management Co | – | – | – | – | Not filed |
| Optimum Investment Advisors | – | – | – | – | Not filed |
| Hemington Wealth Management | – | – | – | – | Not filed |