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, Q1 2025
Institutional positions in Axcelis Technologies Inc as of Mar 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
- 307
- −16 vs. Q4 2024
- Shares held
- 31.1M
- +364.9K (+1.2%) vs. Q4 2024
- Total value
- $1.54B
- −$607.9M (−28.3%) vs. Q4 2024
- New holders
- 50
- 124 more added
- Sold out
- 66
- 87 more reduced
2 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: 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, Q1 2025
Shares, value and share of portfolio for each institution holding Axcelis Technologies Inc; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 5,338,420 | $265.2M | 0.01% | −108,809−2.0% | Reduced |
| Vanguard Group Inc | 4,439,902 | $220.5M | 0.00% | +43,768+1.0% | Added |
| Reinhart Partners, Inc. | 1,441,022 | $71.6M | 2.61% | +404,910+39.1% | Added |
| State Street Corp | 1,248,230 | $62.0M | 0.00% | −52,958−4.1% | Reduced |
| American Century Companies Inc | 1,140,495 | $56.6M | 0.03% | +80,399+7.6% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 1,020,732 | $50.7M | 0.14% | +424,582+71.2% | Added |
| Geode Capital Management, LLC | 925,571 | $46.0M | 0.00% | +27,821+3.1% | Added |
| Bank of America Corp | 919,403 | $45.7M | 0.00% | +634,119+222.3% | Added |
| Primecap Management Co | 835,066 | $41.5M | 0.03% | −81,360−8.9% | Reduced |
| Boston Trust Walden Corp | 826,332 | $41.0M | 0.30% | +6,216+0.8% | Added |
| Dimensional Fund Advisors LP | 701,275 | $34.8M | 0.01% | −23,310−3.2% | Reduced |
| Goldman Sachs Group Inc | 635,393 | $31.6M | 0.01% | +44,275+7.5% | Added |
| Grantham, Mayo, Van Otterloo & Co. LLC | 579,387 | $28.8M | 0.09% | −184,682−24.2% | Reduced |
| Price T Rowe Associates Inc | 526,422 | $26.1M | 0.00% | +2,053+0.4% | Added |
| Morgan Stanley | 507,380 | $25.2M | 0.00% | +11,897+2.4% | Added |
| Amundi | 551,047 | $24.7M | 0.01% | +61,796+12.6% | Added |
| Voloridge Investment Management, LLC | 481,300 | $23.9M | 0.09% | +258,637+116.2% | Added |
| BlackBarn Capital Partners LP | 480,441 | $23.9M | 8.15% | +424,444+758.0% | Added |
| Northern Trust Corp | 401,931 | $20.0M | 0.00% | +9,853+2.5% | Added |
| Charles Schwab Investment Management Inc | 386,007 | $19.2M | 0.00% | +16,071+4.3% | Added |
| Boston Partners | 333,039 | $16.3M | 0.02% | +2,966+0.9% | Added |
| Royce & Associates LP | 280,983 | $14.0M | 0.15% | −52,443−15.7% | Reduced |
| UBS Group AG | 272,138 | $13.5M | 0.00% | +23,748+9.6% | Added |
| Bank of New York Mellon Corp | 212,534 | $10.6M | 0.00% | −13,830−6.1% | Reduced |
| Jackson Square Partners, LLC | 210,344 | $10.4M | 1.41% | +23,754+12.7% | Added |
| Federated Hermes, Inc. | 194,192 | $9.65M | 0.02% | +12,931+7.1% | Added |
| Principal Financial Group Inc | 194,038 | $9.64M | 0.01% | +5,479+2.9% | Added |
| Millennium Management LLC | 183,995 | $9.14M | 0.01% | −106,275−36.6% | Reduced |
| Paradigm Capital Management Inc | 182,100 | $9.04M | 0.50% | +28,200+18.3% | Added |
| JPMorgan Chase & Co | 170,011 | $8.44M | 0.00% | −19,557−10.3% | Reduced |
| Pacer Advisors, Inc. | 161,481 | $8.02M | 0.02% | −620,674−79.4% | Reduced |
| Citigroup Inc | 159,623 | $7.93M | 0.01% | +41,436+35.1% | Added |
| SEI Investments Co | 158,182 | $7.86M | 0.01% | +13,015+9.0% | Added |
| Harbor Capital Advisors, Inc. | 140,582 | $6.98M | 0.32% | +52,757+60.1% | Added |
| Invesco Ltd. | 138,251 | $6.87M | 0.00% | +7,129+5.4% | Added |
| M&G Plc | 136,914 | $6.85M | 0.03% | +9,315+7.3% | Added |
| BNP Paribas Arbitrage, SA | 135,082 | $6.71M | 0.01% | +18,792+16.2% | Added |
| Kennedy Capital Management, Inc. | 129,881 | $6.45M | 0.15% | +76,000+141.1% | Added |
| Jane Street Group, LLC | 121,372 | $6.03M | 0.01% | −116,985−49.1% | Reduced |
| Mizuho Markets Americas LLC | 119,376 | $5.93M | 0.13% | +119,376 | New |
| Royal Bank of Canada | 117,566 | $5.84M | 0.00% | +4,324+3.8% | Added |
| Legal & General Group Plc | 105,255 | $5.23M | 0.00% | −2,446−2.3% | Reduced |
| Public Sector Pension Investment Board | 103,067 | $5.12M | 0.02% | +22,040+27.2% | Added |
| Winton Group Ltd | 101,361 | $5.03M | 0.31% | +86,513+582.7% | Added |
| Ameriprise Financial Inc | 99,786 | $4.96M | 0.00% | −2,184−2.1% | Reduced |
| Holocene Advisors, LP | 96,683 | $4.80M | 0.01% | +12,398+14.7% | Added |
| Rhumbline Advisers | 96,647 | $4.80M | 0.00% | +5,805+6.4% | Added |
| Walleye Capital LLC | 94,169 | $4.68M | 0.05% | +92,739+6,485.2% | Added |
| Nuveen, LLC | 89,536 | $4.45M | 0.00% | +89,536 | New |
| Renaissance Technologies LLC | 89,499 | $4.45M | 0.01% | −122,500−57.8% | Reduced |
| Norges Bank | 86,383 | $4.29M | 0.00% | −429,574−83.3% | Reduced |
| UBS Asset Management Americas Inc | 78,756 | $3.91M | 0.00% | +836+1.1% | Added |
| State of Wisconsin Investment Board | 78,467 | $3.90M | 0.01% | +24,717+46.0% | Added |
| Squarepoint Ops LLC | 73,002 | $3.63M | 0.01% | +73,002 | New |
| Susquehanna International Group, LLP | 65,357 | $3.25M | 0.01% | −8,698−11.7% | Reduced |
| Quantbot Technologies LP | 65,091 | $3.23M | 0.10% | +27,341+72.4% | Added |
| Swiss National Bank | 63,000 | $3.13M | 0.00% | −1,100−1.7% | Reduced |
| Janus Henderson Group PLC | 62,253 | $3.09M | 0.00% | −28,255−31.2% | Reduced |
| Alliancebernstein L.P. | 61,520 | $3.06M | 0.00% | −4,622−7.0% | Reduced |
| Caxton Associates LLP | 60,941 | $3.03M | 0.11% | +60,941 | New |
| Numerai GP LLC | 60,755 | $3.02M | 0.57% | +36,990+155.6% | Added |
| Engineers Gate Manager LP | 58,784 | $2.92M | 0.05% | −67,387−53.4% | Reduced |
| LPL Financial LLC | 56,435 | $2.80M | 0.00% | −4,399−7.2% | Reduced |
| Barclays PLC | 56,310 | $2.80M | 0.00% | −17,161−23.4% | Reduced |
| Voya Investment Management LLC | 54,768 | $2.72M | 0.00% | +33,994+163.6% | Added |
| HRT Financial LP | 54,763 | $2.72M | 0.02% | +54,763 | New |
| Private Advisor Group, LLC | 53,575 | $2.66M | 0.02% | +47,510+783.3% | Added |
| FMR LLC | 49,607 | $2.46M | 0.00% | +27,548+124.9% | Added |
| Creative Planning | 47,445 | $2.36M | 0.00% | +11,945+33.6% | Added |
| ExodusPoint Capital Management, LP | 44,611 | $2.22M | 0.03% | +44,611 | New |
| Two Sigma Investments, LP | 44,344 | $2.20M | 0.00% | +24,709+125.8% | Added |
| Jump Financial, LLC | 37,192 | $1.85M | 0.03% | −7,268−16.3% | Reduced |
| Great West Life Assurance Co | 37,034 | $1.84M | 0.00% | −714−1.9% | Reduced |
| Colony Group, LLC | 36,430 | $1.81M | 0.00% | +7,670+26.7% | Added |
| AQR Capital Management LLC | 35,717 | $1.77M | 0.00% | +1,678+4.9% | Added |
| Wells Fargo & Company | 35,493 | $1.76M | 0.00% | +5,424+18.0% | Added |
| Verition Fund Management LLC | 35,016 | $1.74M | 0.01% | −8,699−19.9% | Reduced |
| RE Advisers Corp | 34,200 | $1.70M | 0.04% | +4,600+15.5% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 33,521 | $1.66M | 0.00% | 00.0% | Unchanged |
| Rice Hall James & Associates, LLC | 32,883 | $1.63M | 0.10% | +10.0% | Added |
| Optimize Financial Inc | 32,251 | $1.60M | 0.60% | +32,251 | New |
| New Insight Wealth Advisors | 31,847 | $1.58M | 0.72% | +31,847 | New |
| Prudential Financial Inc | 31,820 | $1.58M | 0.00% | −11,070−25.8% | Reduced |
| Isthmus Partners, LLC | 31,621 | $1.57M | 0.20% | +3,330+11.8% | Added |
| Thrivent Financial for Lutherans | 27,373 | $1.48M | 0.00% | −1,250−4.4% | Reduced |
| California State Teachers Retirement System | 29,772 | $1.48M | 0.00% | −735−2.4% | Reduced |
| Deutsche Bank AG | 26,363 | $1.31M | 0.00% | −2,124−7.5% | Reduced |
| Bridges Investment Management Inc | 25,793 | $1.28M | 0.02% | +14,589+130.2% | Added |
| Envestnet Asset Management Inc | 25,063 | $1.24M | 0.00% | +3,561+16.6% | Added |
| Schonfeld Strategic Advisors LLC | 24,622 | $1.22M | 0.01% | +10,798+78.1% | Added |
| Chase Investment Counsel Corp | 24,000 | $1.19M | 0.44% | +9,000+60.0% | Added |
| Franklin Resources Inc | 23,626 | $1.17M | 0.00% | +360+1.5% | Added |
| Citadel Advisors LLC | 22,093 | $1.10M | 0.00% | −109,471−83.2% | Reduced |
| Andra AP-fonden | 19,990 | $992.9K | 0.02% | +19,990 | New |
| Aquatic Capital Management LLC | 19,986 | $992.7K | 0.03% | +7,039+54.4% | Added |
| Raymond James Financial Inc | 19,971 | $992.0K | 0.00% | +14,283+251.1% | Added |
| Nebula Research & Development LLC | 19,767 | $981.8K | 0.09% | +11,755+146.7% | Added |
| Penbrook Management LLC | 19,640 | $975.5K | 0.74% | +75+0.4% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 19,396 | $963.4K | 0.00% | +849+4.6% | Added |
| Victory Capital Management Inc | 19,163 | $951.8K | 0.00% | +1,634+9.3% | Added |