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; 441 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, Q2 2026
Institutional positions in Axcelis Technologies Inc as of Jun 30, 2026. 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
- 441
- +67 vs. Q1 2026
- Shares held
- 30.9M
- −1.60M (−4.9%) vs. Q1 2026
- Total value
- $5.85B
- +$2.82B (+93.2%) vs. Q1 2026
- New holders
- 113
- 117 more added
- Sold out
- 46
- 146 more reduced
6 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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 | 441 | $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 | 392 | $4.35B |
| Q1 2024 | 384 | $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 | 204 | $1.37B |
| Q2 2021 | 188 | $1.17B |
| Q1 2021 | 192 | $1.20B |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding Axcelis Technologies Inc; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Weiss Asset Management LP | 103,258 | $19.6M | 0.22% | +103,258 | New |
| Public Sector Pension Investment Board | 105,601 | $20.0M | 0.05% | −4,190−3.8% | Reduced |
| Alberta Investment Management Corp | 107,250 | $20.3M | 0.12% | +71,500+200.0% | Added |
| First Trust Advisors LP | 123,278 | $23.4M | 0.01% | −14,501−10.5% | Reduced |
| Federated Hermes, Inc. | 132,331 | $25.1M | 0.04% | −76,867−36.7% | Reduced |
| D. E. Shaw & Co., Inc. | 133,044 | $25.2M | 0.02% | −411,377−75.6% | Reduced |
| Sagefield Capital LP | 133,770 | $25.3M | 1.88% | +51,532+62.7% | Added |
| Alpine Associates Management Inc. | 134,905 | $25.6M | 1.60% | +134,905 | New |
| Grantham, Mayo, Van Otterloo & Co. LLC | 135,580 | $25.7M | 0.06% | −199,206−59.5% | Reduced |
| Millennium Management LLC | 139,242 | $26.4M | 0.02% | +126,710+1,011.1% | Added |
| Citigroup Inc | 184,124 | $34.9M | 0.02% | +159,479+647.1% | Added |
| Bank of New York Mellon Corp | 204,964 | $38.8M | 0.01% | +5,292+2.7% | Added |
| Allspring Global Investments Holdings, LLC | 219,357 | $39.1M | 0.06% | −39,179−15.2% | Reduced |
| Principal Financial Group Inc | 218,113 | $41.3M | 0.02% | +7,911+3.8% | Added |
| Emerald Mutual Fund Advisers Trust | 219,443 | $41.6M | 1.46% | +172,031+362.8% | Added |
| Vanguard Fiduciary Trust Co | 220,809 | $41.8M | 0.01% | +20,344+10.1% | Added |
| Goldman Sachs Group Inc | 235,253 | $44.6M | 0.00% | −262,371−52.7% | Reduced |
| Boston Partners | 303,929 | $55.7M | 0.05% | −36,346−10.7% | Reduced |
| UBS Group AG | 320,891 | $60.8M | 0.01% | −56,346−14.9% | Reduced |
| Emerald Advisers, LLC | 330,469 | $62.6M | 1.47% | +234,231+243.4% | Added |
| Boston Trust Walden Corp | 359,256 | $68.1M | 0.52% | −19,269−5.1% | Reduced |
| Morgan Stanley | 366,077 | $69.4M | 0.00% | −215,559−37.1% | Reduced |
| American Century Companies Inc | 369,879 | $70.1M | 0.03% | −582,035−61.1% | Reduced |
| Northern Trust Corp | 382,027 | $72.4M | 0.01% | −34,676−8.3% | Reduced |
| Manufacturers Life Insurance Company, The | 383,760 | $72.7M | 0.06% | −107,985−22.0% | Reduced |
| Barrow Hanley Mewhinney & Strauss LLC | 392,240 | $74.3M | 0.23% | +392,183+688,040.4% | Added |
| Price T Rowe Associates Inc | 394,455 | $74.7M | 0.01% | +32,253+8.9% | Added |
| Charles Schwab Investment Management Inc | 416,230 | $78.9M | 0.01% | −29,539−6.6% | Reduced |
| Invesco Ltd. | 527,724 | $100.0M | 0.01% | +362,649+219.7% | Added |
| Primecap Management Co | 610,451 | $115.6M | 0.07% | −48,201−7.3% | Reduced |
| Balyasny Asset Management LLC | 616,196 | $116.7M | 0.21% | −748,344−54.8% | Reduced |
| Dimensional Fund Advisors LP | 709,266 | $134.3M | 0.02% | −134,831−16.0% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 803,151 | $152.2M | 0.15% | −202,877−20.2% | Reduced |
| Geode Capital Management, LLC | 833,607 | $158.0M | 0.01% | +22,343+2.8% | Added |
| Reinhart Partners, Inc. | 928,660 | $175.9M | 4.02% | −729,085−44.0% | Reduced |
| Victory Capital Management Inc | 1,134,007 | $214.8M | 0.12% | −144,998−11.3% | Reduced |
| State Street Corp | 1,231,109 | $233.2M | 0.01% | +42,064+3.5% | Added |
| Vanguard Capital Management LLC | 1,386,518 | $262.7M | 0.01% | +3,748+0.3% | Added |
| Vanguard Portfolio Management LLC | 2,478,878 | $469.6M | 0.02% | −9,415−0.4% | Reduced |
| FMR LLC | 4,125,902 | $781.7M | 0.03% | +1,694,781+69.7% | Added |
| BlackRock, Inc. | 5,029,462 | $952.8M | 0.01% | +92,688+1.9% | Added |
| Segall Bryant & Hamill, LLC | 0 | $0 | 0.00% | −200,371−100.0% | Sold out |
| Portolan Capital Management, LLC | 0 | $0 | 0.00% | −77,168−100.0% | Sold out |
| Susquehanna Portfolio Strategies, LLC | 0 | $0 | 0.00% | −68,213−100.0% | Sold out |
| Voloridge Investment Management, LLC | 0 | $0 | 0.00% | −44,246−100.0% | Sold out |
| Allianz Asset Management GmbH | 0 | $0 | 0.00% | −40,133−100.0% | Sold out |
| Toronto Dominion Bank | 0 | $0 | 0.00% | −34,008−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −33,291−100.0% | Sold out |
| Inspire Advisors, LLC | 0 | $0 | 0.00% | −29,411−100.0% | Sold out |
| Yakira Capital Management, Inc. | 0 | $0 | 0.00% | −22,619−100.0% | Sold out |
| Hussman Strategic Advisors, Inc. | 0 | $0 | 0.00% | −21,000−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −17,935−100.0% | Sold out |
| Burney Co | 0 | $0 | 0.00% | −16,845−100.0% | Sold out |
| Entropy Technologies, LP | 0 | $0 | 0.00% | −10,790−100.0% | Sold out |
| Moody National Bank Trust Division | 0 | $0 | 0.00% | −10,134−100.0% | Sold out |
| Bridgewater Associates, LP | 0 | $0 | 0.00% | −8,301−100.0% | Sold out |
| MOKAN Wealth Management Inc. | 0 | $0 | 0.00% | −6,995−100.0% | Sold out |
| IMC-Chicago, LLC | 0 | $0 | 0.00% | −6,736−100.0% | Sold out |
| Quadrature Capital Ltd | 0 | $0 | 0.00% | −6,075−100.0% | Sold out |
| Gabelli Funds LLC | 0 | $0 | 0.00% | −6,053−100.0% | Sold out |
| Aviva PLC | 0 | $0 | 0.00% | −5,308−100.0% | Sold out |
| DRW Securities, LLC | 0 | $0 | 0.00% | −5,052−100.0% | Sold out |
| Federation des caisses Desjardins du Quebec | 0 | $0 | 0.00% | −5,021−100.0% | Sold out |
| Alpine Global Management, LLC | 0 | $0 | 0.00% | −4,044−100.0% | Sold out |
| Catalyst Funds Management Pty Ltd | 0 | $0 | 0.00% | −3,800−100.0% | Sold out |
| Numerai GP LLC | 0 | $0 | 0.00% | −3,638−100.0% | Sold out |
| Edgestream Partners, L.P. | 0 | $0 | 0.00% | −3,362−100.0% | Sold out |
| EntryPoint Capital, LLC | 0 | $0 | 0.00% | −3,213−100.0% | Sold out |
| Private Advisor Group, LLC | 0 | $0 | 0.00% | −2,978−100.0% | Sold out |
| One Wealth Advisors, LLC | 0 | $0 | 0.00% | −2,926−100.0% | Sold out |
| Mirabella Financial Services LLP | 0 | $0 | 0.00% | −2,753−100.0% | Sold out |
| Exchange Traded Concepts, LLC | 0 | $0 | 0.00% | −2,719−100.0% | Sold out |
| Glenmede Trust Co NA | 0 | $0 | 0.00% | −2,640−100.0% | Sold out |
| Vise Technologies, Inc. | 0 | $0 | 0.00% | −2,937−100.0% | Sold out |
| Quadrant Capital Group LLC | 0 | $0 | 0.00% | −766−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −569−100.0% | Sold out |
| Opal Wealth Advisors, LLC | 0 | $0 | 0.00% | −254−100.0% | Sold out |
| MAI Capital Management | 0 | $0 | 0.00% | −142−100.0% | Sold out |
| Root Financial Partners, LLC | 0 | $0 | 0.00% | −114−100.0% | Sold out |
| Sound Income Strategies, LLC | 0 | $0 | 0.00% | −110−100.0% | Sold out |
| Groesbeck Investment Management Corp | 0 | $0 | 0.00% | −62−100.0% | Sold out |
| Spire Wealth Management | 0 | $0 | 0.00% | −43−100.0% | Sold out |
| Whittier Trust Co of Nevada Inc | 0 | $0 | 0.00% | −15−100.0% | Sold out |
| Twin Peaks Wealth Advisors, LLC | 0 | $0 | 0.00% | −10−100.0% | Sold out |
| UMA Financial Services, Inc. | 0 | $0 | 0.00% | −8−100.0% | Sold out |
| Vermillion Wealth Management, Inc. | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| Curio Wealth, LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Janus Henderson Group PLC | – | – | – | – | Not filed |
| Skopos Labs, Inc. | – | – | – | – | Not filed |
| CWM, LLC | – | – | – | – | Not filed |
| Sunbelt Securities, Inc. | – | – | – | – | Not filed |
| McIlrath & Eck, LLC | – | – | – | – | Not filed |
| USA Financial Portformulas Corp | – | – | – | – | Not filed |