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, Q2 2025
Institutional positions in Axcelis Technologies Inc as of Jun 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
- 330
- +24 vs. Q1 2025
- Shares held
- 31.8M
- +658.4K (+2.1%) vs. Q1 2025
- Total value
- $2.22B
- +$674.0M (+43.7%) vs. Q1 2025
- New holders
- 65
- 108 more added
- Sold out
- 41
- 107 more reduced
1 institution that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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, Q2 2025
Shares, value and share of portfolio for each institution holding Axcelis Technologies Inc; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 5,021,946 | $350.0M | 0.01% | −316,474−5.9% | Reduced |
| Vanguard Group Inc | 4,323,949 | $301.3M | 0.00% | −115,953−2.6% | Reduced |
| American Century Companies Inc | 1,659,463 | $115.6M | 0.06% | +518,968+45.5% | Added |
| Reinhart Partners, Inc. | 1,518,544 | $105.8M | 3.61% | +77,522+5.4% | Added |
| State Street Corp | 1,248,708 | $87.0M | 0.00% | +4780.0% | Added |
| Geode Capital Management, LLC | 925,305 | $64.5M | 0.00% | −2660.0% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 921,126 | $64.2M | 0.16% | −99,606−9.8% | Reduced |
| Victory Capital Management Inc | 886,755 | $63.6M | 0.04% | +867,592+4,527.4% | Added |
| Primecap Management Co | 852,296 | $59.4M | 0.05% | +17,230+2.1% | Added |
| Boston Trust Walden Corp | 845,911 | $59.0M | 0.42% | +19,579+2.4% | Added |
| Dimensional Fund Advisors LP | 735,459 | $51.3M | 0.01% | +34,184+4.9% | Added |
| Bank of America Corp | 703,438 | $49.0M | 0.00% | −215,965−23.5% | Reduced |
| Goldman Sachs Group Inc | 591,177 | $41.2M | 0.01% | −44,216−7.0% | Reduced |
| Morgan Stanley | 550,161 | $38.3M | 0.00% | +42,781+8.4% | Added |
| Price T Rowe Associates Inc | 529,143 | $36.9M | 0.00% | +2,721+0.5% | Added |
| Boston Partners | 474,043 | $33.6M | 0.04% | +141,004+42.3% | Added |
| Grantham, Mayo, Van Otterloo & Co. LLC | 442,065 | $30.8M | 0.09% | −137,322−23.7% | Reduced |
| Northern Trust Corp | 441,658 | $30.8M | 0.00% | +39,727+9.9% | Added |
| Royal Bank of Canada | 421,144 | $29.4M | 0.00% | +303,578+258.2% | Added |
| Charles Schwab Investment Management Inc | 406,412 | $28.3M | 0.00% | +20,405+5.3% | Added |
| FMR LLC | 382,573 | $26.7M | 0.00% | +332,966+671.2% | Added |
| Citigroup Inc | 362,457 | $25.3M | 0.02% | +202,834+127.1% | Added |
| BlackBarn Capital Partners LP | 360,000 | $25.1M | 8.31% | −120,441−25.1% | Reduced |
| Voloridge Investment Management, LLC | 311,838 | $21.7M | 0.08% | −169,462−35.2% | Reduced |
| Royce & Associates LP | 265,038 | $18.5M | 0.19% | −15,945−5.7% | Reduced |
| Citadel Advisors LLC | 254,493 | $17.7M | 0.02% | +232,400+1,051.9% | Added |
| Bank of New York Mellon Corp | 226,063 | $15.8M | 0.00% | +13,529+6.4% | Added |
| Federated Hermes, Inc. | 221,164 | $15.4M | 0.03% | +26,972+13.9% | Added |
| Principal Financial Group Inc | 205,677 | $14.3M | 0.01% | +11,639+6.0% | Added |
| UBS Group AG | 198,017 | $13.8M | 0.00% | −74,121−27.2% | Reduced |
| BNP Paribas Arbitrage, SA | 192,188 | $13.4M | 0.01% | +57,106+42.3% | Added |
| JPMorgan Chase & Co | 177,867 | $12.4M | 0.00% | +7,856+4.6% | Added |
| Invesco Ltd. | 139,796 | $9.74M | 0.00% | +1,545+1.1% | Added |
| Harbor Capital Advisors, Inc. | 135,583 | $9.45M | 0.40% | −4,999−3.6% | Reduced |
| Kennedy Capital Management, Inc. | 133,206 | $9.28M | 0.22% | +3,325+2.6% | Added |
| Ameriprise Financial Inc | 122,351 | $8.53M | 0.00% | +22,565+22.6% | Added |
| UBS Asset Management Americas Inc | 111,390 | $7.76M | 0.00% | +32,634+41.4% | Added |
| Public Sector Pension Investment Board | 109,575 | $7.64M | 0.03% | +6,508+6.3% | Added |
| Millennium Management LLC | 107,395 | $7.48M | 0.01% | −76,600−41.6% | Reduced |
| Pacer Advisors, Inc. | 106,522 | $7.42M | 0.02% | −54,959−34.0% | Reduced |
| Squarepoint Ops LLC | 100,023 | $6.97M | 0.02% | +27,021+37.0% | Added |
| Janus Henderson Group PLC | 97,205 | $6.77M | 0.00% | +34,952+56.1% | Added |
| Rhumbline Advisers | 94,758 | $6.60M | 0.01% | −1,889−2.0% | Reduced |
| Balyasny Asset Management LLC | 90,748 | $6.32M | 0.01% | +90,748 | New |
| State of Wisconsin Investment Board | 90,573 | $6.31M | 0.02% | +12,106+15.4% | Added |
| Legal & General Group Plc | 88,596 | $6.17M | 0.00% | −16,659−15.8% | Reduced |
| Paradigm Capital Management Inc | 88,100 | $6.14M | 0.30% | −94,000−51.6% | Reduced |
| Clark Capital Management Group, Inc. | 84,591 | $5.90M | 0.04% | +84,591 | New |
| Trexquant Investment LP | 81,043 | $5.65M | 0.06% | +81,043 | New |
| Barclays PLC | 78,287 | $5.46M | 0.00% | +21,977+39.0% | Added |
| D. E. Shaw & Co., Inc. | 78,253 | $5.45M | 0.01% | +71,943+1,140.1% | Added |
| Nuveen, LLC | 74,209 | $5.17M | 0.00% | −15,327−17.1% | Reduced |
| First Eagle Investment Management, LLC | 73,000 | $5.09M | 0.01% | +73,000 | New |
| Alliancebernstein L.P. | 71,588 | $4.99M | 0.00% | +10,068+16.4% | Added |
| First Trust Advisors LP | 70,034 | $4.88M | 0.00% | +62,734+859.4% | Added |
| Susquehanna Portfolio Strategies, LLC | 67,866 | $4.73M | 0.10% | +67,866 | New |
| Creative Planning | 67,212 | $4.68M | 0.00% | +19,767+41.7% | Added |
| Jane Street Group, LLC | 65,504 | $4.56M | 0.01% | −55,868−46.0% | Reduced |
| Norges Bank | 62,448 | $4.35M | 0.00% | −23,935−27.7% | Reduced |
| Swiss National Bank | 61,500 | $4.29M | 0.00% | −1,500−2.4% | Reduced |
| QSM Asset Management Ltd | 60,416 | $4.22M | 3.89% | +60,416 | New |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 54,521 | $3.80M | 0.00% | +21,000+62.6% | Added |
| Winton Group Ltd | 54,317 | $3.79M | 0.19% | −47,044−46.4% | Reduced |
| LPL Financial LLC | 54,069 | $3.77M | 0.00% | −2,366−4.2% | Reduced |
| Verition Fund Management LLC | 50,227 | $3.50M | 0.02% | +15,211+43.4% | Added |
| Private Advisor Group, LLC | 48,635 | $3.39M | 0.02% | −4,940−9.2% | Reduced |
| Soviero Asset Management, LP | 48,000 | $3.35M | 2.45% | +48,000 | New |
| Globeflex Capital L P | 43,512 | $3.03M | 0.25% | +24,959+134.5% | Added |
| AQR Capital Management LLC | 43,303 | $3.02M | 0.00% | +7,586+21.2% | Added |
| Mizuho Markets Cayman LP | 42,420 | $2.96M | 0.21% | +42,420 | New |
| Susquehanna International Group, LLP | 40,996 | $2.86M | 0.00% | −24,361−37.3% | Reduced |
| Janney Montgomery Scott LLC | 38,923 | $2.71M | 0.01% | +19,820+103.8% | Added |
| Envestnet Asset Management Inc | 38,260 | $2.67M | 0.00% | +13,197+52.7% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 36,000 | $2.51M | 0.01% | +36,000 | New |
| Two Sigma Investments, LP | 35,893 | $2.50M | 0.00% | −8,451−19.1% | Reduced |
| Holocene Advisors, LP | 35,798 | $2.49M | 0.01% | −60,885−63.0% | Reduced |
| Great West Life Assurance Co | 35,550 | $2.48M | 0.00% | −1,484−4.0% | Reduced |
| Quantbot Technologies LP | 35,278 | $2.46M | 0.06% | −29,813−45.8% | Reduced |
| Jackson Square Partners, LLC | 35,049 | $2.44M | 0.90% | −175,295−83.3% | Reduced |
| Aquatic Capital Management LLC | 34,572 | $2.41M | 0.05% | +14,586+73.0% | Added |
| RE Advisers Corp | 34,200 | $2.38M | 0.06% | 00.0% | Unchanged |
| Isthmus Partners, LLC | 34,168 | $2.38M | 0.28% | +2,547+8.1% | Added |
| Prudential Financial Inc | 33,415 | $2.33M | 0.00% | +1,595+5.0% | Added |
| Wells Fargo & Company | 32,827 | $2.29M | 0.00% | −2,666−7.5% | Reduced |
| Optimize Financial Inc | 32,021 | $2.23M | 1.37% | −230−0.7% | Reduced |
| New Insight Wealth Advisors | 31,847 | $2.22M | 0.91% | 00.0% | Unchanged |
| Rice Hall James & Associates, LLC | 31,728 | $2.21M | 0.12% | −1,155−3.5% | Reduced |
| Penbrook Management LLC | 36,535 | $2.15M | 0.81% | +16,895+86.0% | Added |
| California State Teachers Retirement System | 30,130 | $2.10M | 0.00% | +358+1.2% | Added |
| Bridges Investment Management Inc | 29,775 | $2.08M | 0.03% | +3,982+15.4% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 28,000 | $1.95M | 0.00% | +13,891+98.5% | Added |
| Fox Run Management, L.L.C. | 27,543 | $1.92M | 0.32% | +27,543 | New |
| ExodusPoint Capital Management, LP | 27,436 | $1.91M | 0.02% | −17,175−38.5% | Reduced |
| Brevan Howard Capital Management LP | 26,987 | $1.88M | 0.02% | +26,987 | New |
| Ruffer LLP | 24,731 | $1.72M | 0.08% | +24,731 | New |
| Chase Investment Counsel Corp | 24,000 | $1.67M | 0.53% | 00.0% | Unchanged |
| Thrivent Financial for Lutherans | 23,626 | $1.65M | 0.00% | −3,747−13.7% | Reduced |
| Franklin Resources Inc | 23,281 | $1.62M | 0.00% | −345−1.5% | Reduced |
| PEAK6 LLC | 23,234 | $1.62M | 0.03% | +17,015+273.6% | Added |
| Voya Investment Management LLC | 23,176 | $1.62M | 0.00% | −31,592−57.7% | Reduced |