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 $5.87B in total; Maverick Capital is the only superinvestor holding it.
13F holders, Q3 2025
Institutional positions in Axcelis Technologies Inc as of Sep 30, 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
- 362
- +36 vs. Q2 2025
- Shares held
- 30.6M
- −1.15M (−3.6%) vs. Q2 2025
- Total value
- $2.98B
- +$765.0M (+34.5%) vs. Q2 2025
- New holders
- 74
- 108 more added
- Sold out
- 38
- 121 more reduced
4 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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 | 441 | $5.87B |
| Q1 2026 | 380 | $3.03B |
| Q4 2025 | 373 | $2.52B |
| Q3 2025 | 362 | $2.98B |
| Q2 2025 | 330 | $2.22B |
| Q1 2025 | 307 | $1.54B |
| Q4 2024 | 325 | $2.16B |
| Q3 2024 | 369 | $3.19B |
| Q2 2024 | 392 | $4.38B |
| Q1 2024 | 384 | $3.57B |
| Q4 2023 | 421 | $3.95B |
| Q3 2023 | 421 | $4.85B |
| Q2 2023 | 406 | $5.41B |
| Q1 2023 | 379 | $4.00B |
| Q4 2022 | 328 | $2.32B |
| Q3 2022 | 287 | $1.72B |
| Q2 2022 | 277 | $1.52B |
| Q1 2022 | 290 | $2.05B |
| Q4 2021 | 254 | $2.06B |
| Q3 2021 | 204 | $1.37B |
| Q2 2021 | 188 | $1.17B |
| Q1 2021 | 192 | $1.20B |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding Axcelis Technologies Inc; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 4,864,173 | $474.9M | 0.01% | −157,773−3.1% | Reduced |
| Vanguard Group Inc | 4,185,701 | $408.7M | 0.01% | −138,248−3.2% | Reduced |
| Reinhart Partners, Inc. | 1,610,332 | $157.2M | 5.11% | +91,788+6.0% | Added |
| American Century Companies Inc | 1,345,761 | $131.4M | 0.07% | −313,702−18.9% | Reduced |
| State Street Corp | 1,230,116 | $120.1M | 0.00% | −18,592−1.5% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 930,362 | $90.8M | 0.24% | +9,236+1.0% | Added |
| Geode Capital Management, LLC | 926,739 | $90.5M | 0.01% | +1,434+0.2% | Added |
| Victory Capital Management Inc | 972,162 | $90.2M | 0.05% | +85,407+9.6% | Added |
| Primecap Management Co | 833,676 | $81.4M | 0.06% | −18,620−2.2% | Reduced |
| Dimensional Fund Advisors LP | 769,612 | $75.1M | 0.02% | +34,153+4.6% | Added |
| FMR LLC | 551,398 | $53.8M | 0.00% | +168,825+44.1% | Added |
| Price T Rowe Associates Inc | 532,108 | $52.0M | 0.01% | +2,965+0.6% | Added |
| Goldman Sachs Group Inc | 494,775 | $48.3M | 0.01% | −96,402−16.3% | Reduced |
| Boston Trust Walden Corp | 460,287 | $44.9M | 0.33% | −385,624−45.6% | Reduced |
| Boston Partners | 468,741 | $44.9M | 0.05% | −5,302−1.1% | Reduced |
| Morgan Stanley | 454,087 | $44.3M | 0.00% | −96,074−17.5% | Reduced |
| Grantham, Mayo, Van Otterloo & Co. LLC | 443,863 | $43.3M | 0.12% | +1,798+0.4% | Added |
| Northern Trust Corp | 434,988 | $42.5M | 0.01% | −6,670−1.5% | Reduced |
| JPMorgan Chase & Co | 434,788 | $42.5M | 0.00% | +256,921+144.4% | Added |
| Charles Schwab Investment Management Inc | 427,113 | $41.7M | 0.01% | +20,701+5.1% | Added |
| Bank of America Corp | 410,314 | $40.1M | 0.00% | −293,124−41.7% | Reduced |
| Invesco Ltd. | 386,735 | $37.8M | 0.01% | +246,939+176.6% | Added |
| Citigroup Inc | 324,354 | $31.7M | 0.02% | −38,103−10.5% | Reduced |
| LSV Asset Management | 314,900 | $30.7M | 0.07% | +314,900 | New |
| BNP Paribas Arbitrage, SA | 283,926 | $27.7M | 0.02% | +91,738+47.7% | Added |
| Millennium Management LLC | 261,776 | $25.6M | 0.02% | +154,381+143.8% | Added |
| Janus Henderson Group PLC | 235,412 | $23.0M | 0.01% | +138,207+142.2% | Added |
| Bank of New York Mellon Corp | 219,418 | $21.4M | 0.00% | −6,645−2.9% | Reduced |
| Federated Hermes, Inc. | 217,802 | $21.3M | 0.04% | −3,362−1.5% | Reduced |
| BlackBarn Capital Partners LP | 200,000 | $19.5M | 6.37% | −160,000−44.4% | Reduced |
| Principal Financial Group Inc | 185,268 | $18.1M | 0.01% | −20,409−9.9% | Reduced |
| Kennedy Capital Management, Inc. | 183,100 | $17.9M | 0.40% | +49,894+37.5% | Added |
| Royal Bank of Canada | 168,865 | $16.5M | 0.00% | −252,279−59.9% | Reduced |
| D. E. Shaw & Co., Inc. | 154,338 | $15.1M | 0.01% | +76,085+97.2% | Added |
| Royce & Associates LP | 144,708 | $14.1M | 0.14% | −120,330−45.4% | Reduced |
| First Eagle Investment Management, LLC | 130,358 | $12.7M | 0.02% | +57,358+78.6% | Added |
| Squarepoint Ops LLC | 128,871 | $12.6M | 0.03% | +28,848+28.8% | Added |
| UBS Group AG | 127,323 | $12.4M | 0.00% | −70,694−35.7% | Reduced |
| Public Sector Pension Investment Board | 122,564 | $12.0M | 0.04% | +12,989+11.9% | Added |
| Ameriprise Financial Inc | 118,133 | $11.5M | 0.00% | −4,218−3.4% | Reduced |
| Arrowstreet Capital, Limited Partnership | 117,797 | $11.5M | 0.01% | +117,797 | New |
| Allspring Global Investments Holdings, LLC | 109,628 | $10.4M | 0.02% | +102,040+1,344.8% | Added |
| Rhumbline Advisers | 96,897 | $9.46M | 0.01% | +2,139+2.3% | Added |
| Clark Capital Management Group, Inc. | 96,588 | $9.43M | 0.06% | +11,997+14.2% | Added |
| Voloridge Investment Management, LLC | 95,227 | $9.30M | 0.03% | −216,611−69.5% | Reduced |
| Legal & General Group Plc | 83,016 | $8.11M | 0.00% | −5,580−6.3% | Reduced |
| Nuveen, LLC | 73,282 | $7.16M | 0.00% | −927−1.2% | Reduced |
| Wells Fargo & Company | 73,023 | $7.13M | 0.00% | +40,196+122.4% | Added |
| Creative Planning | 72,634 | $7.09M | 0.01% | +5,422+8.1% | Added |
| Susquehanna Portfolio Strategies, LLC | 71,086 | $6.94M | 0.11% | +3,220+4.7% | Added |
| Alliancebernstein L.P. | 69,644 | $6.80M | 0.00% | −1,944−2.7% | Reduced |
| Barclays PLC | 69,585 | $6.79M | 0.00% | −8,702−11.1% | Reduced |
| UBS Asset Management Americas Inc | 66,098 | $6.45M | 0.00% | −45,292−40.7% | Reduced |
| Swiss National Bank | 62,300 | $6.08M | 0.00% | +800+1.3% | Added |
| Segall Bryant & Hamill, LLC | 58,611 | $5.72M | 0.08% | +58,611 | New |
| Paradigm Capital Management Inc | 56,100 | $5.48M | 0.24% | −32,000−36.3% | Reduced |
| Globeflex Capital L P | 55,997 | $5.47M | 0.84% | +12,485+28.7% | Added |
| First Trust Advisors LP | 55,243 | $5.39M | 0.00% | −14,791−21.1% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 54,221 | $5.29M | 0.00% | −300−0.6% | Reduced |
| QSM Asset Management Ltd | 53,166 | $5.17M | 3.69% | −7,250−12.0% | Reduced |
| AXA Investment Managers S.A. | 52,179 | $5.09M | 0.01% | +52,179 | New |
| Franklin Resources Inc | 74,672 | $5.04M | 0.00% | +51,391+220.7% | Added |
| State of Wisconsin Investment Board | 50,214 | $4.90M | 0.01% | −40,359−44.6% | Reduced |
| LPL Financial LLC | 48,968 | $4.78M | 0.00% | −5,101−9.4% | Reduced |
| Private Advisor Group, LLC | 45,895 | $4.48M | 0.02% | −2,740−5.6% | Reduced |
| Harbor Capital Advisors, Inc. | 45,025 | $4.40M | 0.34% | −90,558−66.8% | Reduced |
| Prudential Financial Inc | 44,385 | $4.33M | 0.01% | +10,970+32.8% | Added |
| Envestnet Asset Management Inc | 42,696 | $4.17M | 0.00% | +4,436+11.6% | Added |
| Ossiam | 40,700 | $3.97M | 0.05% | +40,700 | New |
| Schonfeld Strategic Advisors LLC | 37,637 | $3.67M | 0.03% | +17,750+89.3% | Added |
| Two Sigma Investments, LP | 37,165 | $3.63M | 0.01% | +1,272+3.5% | Added |
| AQR Capital Management LLC | 36,651 | $3.58M | 0.00% | −6,652−15.4% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 36,000 | $3.52M | 0.01% | 00.0% | Unchanged |
| Verition Fund Management LLC | 35,776 | $3.49M | 0.02% | −14,451−28.8% | Reduced |
| Janney Montgomery Scott LLC | 35,529 | $3.47M | 0.01% | −3,394−8.7% | Reduced |
| RE Advisers Corp | 34,200 | $3.34M | 0.08% | 00.0% | Unchanged |
| Great West Life Assurance Co | 32,985 | $3.19M | 0.00% | −2,565−7.2% | Reduced |
| Bridges Investment Management Inc | 31,699 | $3.10M | 0.04% | +1,924+6.5% | Added |
| Colony Group, LLC | 4,206 | $3.09M | 0.00% | +4,206 | New |
| Algert Global LLC | 31,110 | $3.04M | 0.05% | +14,010+81.9% | Added |
| Soviero Asset Management, LP | 31,000 | $3.03M | 1.87% | −17,000−35.4% | Reduced |
| Bridgeway Capital Management, LLC | 31,000 | $3.03M | 0.06% | +31,000 | New |
| Amundi | 34,018 | $2.98M | 0.00% | +28,665+535.5% | Added |
| California State Teachers Retirement System | 30,131 | $2.94M | 0.00% | +10.0% | Added |
| Jane Street Group, LLC | 28,609 | $2.79M | 0.00% | −36,895−56.3% | Reduced |
| Jackson Square Partners, LLC | 27,335 | $2.67M | 1.08% | −7,714−22.0% | Reduced |
| New Insight Wealth Advisors | 27,013 | $2.64M | 0.99% | −4,834−15.2% | Reduced |
| Citadel Advisors LLC | 26,827 | $2.62M | 0.00% | −227,666−89.5% | Reduced |
| Marshall Wace, LLP | 25,684 | $2.51M | 0.00% | +25,684 | New |
| Deutsche Bank AG | 25,447 | $2.48M | 0.00% | +2,902+12.9% | Added |
| Chase Investment Counsel Corp | 24,000 | $2.34M | 0.69% | 00.0% | Unchanged |
| Thrivent Financial for Lutherans | 22,667 | $2.21M | 0.00% | −959−4.1% | Reduced |
| Jackson Creek Investment Advisors LLC | 22,299 | $2.18M | 0.63% | +22,299 | New |
| Stifel Financial Corp | 21,736 | $2.12M | 0.00% | +882+4.2% | Added |
| F/M Investments LLC | 21,068 | $2.06M | 0.08% | +21,068 | New |
| HSBC Holdings PLC | 20,761 | $2.01M | 0.00% | +6,416+44.7% | Added |
| Zacks Investment Management | 20,213 | $1.97M | 0.02% | +20,213 | New |
| Andra AP-fonden | 19,990 | $1.95M | 0.02% | +2,000+11.1% | Added |
| Simplex Trading, LLC | 18,887 | $1.84M | 0.04% | +4,565+31.9% | Added |
| MetLife Investment Management | 18,740 | $1.83M | 0.01% | +18,740 | New |