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; 442 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 | 442 | $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 |
|---|---|---|---|---|---|
| Gabelli Funds LLC | 6,051 | $486.1K | 0.00% | −371−5.8% | Reduced |
| White Pine Capital LLC | 6,671 | $535.9K | 0.15% | −229−3.3% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 6,674 | $536.2K | 0.00% | −1,328−16.6% | Reduced |
| XTX Topco Ltd | 6,771 | $544.0K | 0.01% | +6,771 | New |
| Martingale Asset Management L P | 6,828 | $548.6K | 0.01% | 00.0% | Unchanged |
| Merit Financial Group, LLC | 6,867 | $551.7K | 0.00% | +773+12.7% | Added |
| Freestone Grove Partners LP | 6,989 | $561.5K | 0.00% | +6,989 | New |
| Evolve Private Wealth, LLC | 7,029 | $564.7K | 0.03% | +7,029 | New |
| Unique Wealth Strategies, LLC | 7,060 | $567.2K | 0.22% | +7,060 | New |
| Oregon Public Employees Retirement Fund | 7,060 | $567.2K | 0.01% | 00.0% | Unchanged |
| State Board of Administration of Florida Retirement System | 7,080 | $568.8K | 0.00% | 00.0% | Unchanged |
| North Star Investment Management Corp. | 7,392 | $593.9K | 0.04% | 00.0% | Unchanged |
| Peterson Wealth Services | 7,403 | $594.8K | 0.15% | +7,003+1,750.8% | Added |
| Moors & Cabot, Inc. | 7,430 | $596.9K | 0.03% | −1,000−11.9% | Reduced |
| Teacher Retirement System of Texas | 7,519 | $604.1K | 0.00% | +1,462+24.1% | Added |
| State of Tennessee, Treasury Department | 6,867 | $604.8K | 0.00% | −4,937−41.8% | Reduced |
| Guggenheim Capital LLC | 7,704 | $618.9K | 0.00% | −161−2.0% | Reduced |
| Teachers Retirement System of the State of Kentucky | 7,973 | $640.0K | 0.00% | −1,176−12.9% | Reduced |
| Summit Global Investments | 7,998 | $643.0K | 0.04% | −87−1.1% | Reduced |
| Handelsbanken Fonder AB | 8,100 | $651.0K | 0.00% | 00.0% | Unchanged |
| Police & Firemen's Retirement System of New Jersey | 8,210 | $659.6K | 0.01% | −719−8.1% | Reduced |
| James Investment Research Inc | 8,281 | $665.3K | 0.07% | 00.0% | Unchanged |
| Pathstone Holdings, LLC | 8,308 | $667.5K | 0.00% | −3,301−28.4% | Reduced |
| Brookwood Investment Group LLC | 8,400 | $674.9K | 0.08% | 00.0% | Unchanged |
| MML Investors Services, LLC | 8,490 | $682.1K | 0.00% | +4,765+127.9% | Added |
| Arizona State Retirement System | 8,630 | $693.3K | 0.00% | −875−9.2% | Reduced |
| Comerica Bank | 8,969 | $720.6K | 0.00% | −752−7.7% | Reduced |
| ProShare Advisors LLC | 8,978 | $721.3K | 0.00% | −443−4.7% | Reduced |
| Amalgamated Bank | 9,012 | $724.0K | 0.01% | −60−0.7% | Reduced |
| JustInvest LLC | 9,141 | $734.4K | 0.01% | −102−1.1% | Reduced |
| Yousif Capital Management, LLC | 8,416 | $742.0K | 0.01% | −1,311−13.5% | Reduced |
| Two Sigma Securities, LLC | 9,333 | $749.8K | 0.10% | +9,333 | New |
| Cetera Investment Advisers | 9,955 | $799.8K | 0.00% | +3,863+63.4% | Added |
| Morningstar Investment Management LLC | 10,027 | $806.0K | 0.05% | 00.0% | Unchanged |
| Vestcor Inc | 10,071 | $809.0K | 0.02% | +5,785+135.0% | Added |
| Illumine Investment Management, LLC | 10,117 | $812.8K | 0.59% | +86+0.9% | Added |
| New York State Common Retirement Fund | 10,150 | $815.5K | 0.00% | 00.0% | Unchanged |
| Engineers Gate Manager LP | 11,167 | $897.2K | 0.01% | +7,596+212.7% | Added |
| KLP Kapitalforvaltning AS | 11,200 | $899.8K | 0.00% | +100+0.9% | Added |
| Quantinno Capital Management LP | 11,214 | $900.9K | 0.00% | +1,865+19.9% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 11,326 | $909.9K | 0.00% | 00.0% | Unchanged |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 11,782 | $960.3K | 0.00% | −2,866−19.6% | Reduced |
| Gotham Asset Management, LLC | 12,210 | $981.0K | 0.00% | +1,195+10.8% | Added |
| HSBC Holdings PLC | 12,254 | $991.5K | 0.00% | −8,507−41.0% | Reduced |
| RE Advisers Corp | 12,500 | $1.00M | 0.03% | −21,700−63.5% | Reduced |
| Vident Advisory, LLC | 13,099 | $1.05M | 0.01% | −567−4.1% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 13,378 | $1.07M | 0.00% | −583−4.2% | Reduced |
| Quantbot Technologies LP | 13,619 | $1.09M | 0.04% | −2,537−15.7% | Reduced |
| Wiley Bros.-Aintree Capital, LLC | 13,953 | $1.12M | 0.01% | −656−4.5% | Reduced |
| Manufacturers Life Insurance Company, The | 14,040 | $1.13M | 0.00% | −1,259−8.2% | Reduced |
| SG Americas Securities, LLC | 14,166 | $1.14M | 0.00% | +14,166 | New |
| Louisiana State Employees Retirement System | 14,200 | $1.14M | 0.02% | −200−1.4% | Reduced |
| Raymond James Financial Inc | 14,322 | $1.15M | 0.00% | −373−2.5% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 14,447 | $1.16M | 0.00% | −533−3.6% | Reduced |
| Voya Investment Management LLC | 14,584 | $1.17M | 0.00% | −92−0.6% | Reduced |
| Winton Group Ltd | 14,724 | $1.18M | 0.04% | +256+1.8% | Added |
| Illinois Municipal Retirement Fund | 15,561 | $1.25M | 0.02% | −541−3.4% | Reduced |
| Holocene Advisors, LP | 15,679 | $1.26M | 0.00% | +1,792+12.9% | Added |
| New York State Teachers Retirement System | 15,867 | $1.27M | 0.00% | 00.0% | Unchanged |
| Penbrook Management LLC | 15,895 | $1.28M | 0.88% | −1,000−5.9% | Reduced |
| Virginia Retirement Systems Et Al | 16,638 | $1.34M | 0.01% | 00.0% | Unchanged |
| MetLife Investment Management | 17,047 | $1.37M | 0.01% | −1,693−9.0% | Reduced |
| Bridgefront Capital, LLC | 17,765 | $1.43M | 0.36% | +7,870+79.5% | Added |
| Twinbeech Capital LP | 18,000 | $1.45M | 0.10% | +18,000 | New |
| Oliver Luxxe Assets LLC | 18,063 | $1.45M | 0.22% | +18,063 | New |
| Old West Investment Management, LLC | 18,064 | $1.45M | 0.26% | +1,796+11.0% | Added |
| Wakefield Asset Management LLLP | 18,133 | $1.46M | 0.40% | +42+0.2% | Added |
| ARGA Investment Management, LP | 18,534 | $1.49M | 0.04% | 00.0% | Unchanged |
| Mizuho Markets Cayman LP | 18,816 | $1.51M | 0.08% | +3,200+20.5% | Added |
| Dynamic Technology Lab Private Ltd | 19,470 | $1.56M | 0.35% | +19,470 | New |
| Susquehanna International Group, LLP | 19,738 | $1.59M | 0.00% | +12,954+190.9% | Added |
| Needham Investment Management LLC | 20,000 | $1.61M | 0.10% | +20,000 | New |
| Tudor Investment Corp Et Al | 20,741 | $1.67M | 0.01% | +20,741 | New |
| Verition Fund Management LLC | 21,177 | $1.70M | 0.01% | −14,599−40.8% | Reduced |
| Schonfeld Strategic Advisors LLC | 21,182 | $1.70M | 0.01% | −16,455−43.7% | Reduced |
| Thrivent Financial for Lutherans | 21,301 | $1.71M | 0.00% | −1,366−6.0% | Reduced |
| Jackson Creek Investment Advisors LLC | 22,054 | $1.77M | 0.52% | −245−1.1% | Reduced |
| Janney Montgomery Scott LLC | 22,436 | $1.80M | 0.00% | −13,093−36.9% | Reduced |
| Elo Mutual Pension Insurance Co | 22,446 | $1.80M | 0.03% | +22,446 | New |
| State of Alaska, Department of Revenue | 22,568 | $1.81M | 0.02% | +6,758+42.7% | Added |
| Aquatic Capital Management LLC | 22,642 | $1.82M | 0.05% | +22,642 | New |
| Stifel Financial Corp | 24,347 | $1.96M | 0.00% | +2,611+12.0% | Added |
| Burney Co | 24,721 | $1.99M | 0.06% | +24,721 | New |
| Abn Amro Investment Solutions | 24,798 | $1.99M | 0.03% | +7,408+42.6% | Added |
| Algert Global LLC | 25,340 | $2.04M | 0.03% | −5,770−18.5% | Reduced |
| Deutsche Bank AG | 25,920 | $2.08M | 0.00% | +473+1.9% | Added |
| Great West Life Assurance Co | 26,302 | $2.11M | 0.00% | −6,683−20.3% | Reduced |
| Quest Partners LLC | 26,367 | $2.12M | 0.12% | +12,574+91.2% | Added |
| SEI Investments Co | 27,976 | $2.25M | 0.00% | +13,900+98.7% | Added |
| Bridges Investment Management Inc | 28,400 | $2.28M | 0.03% | −3,299−10.4% | Reduced |
| California State Teachers Retirement System | 30,030 | $2.41M | 0.00% | −101−0.3% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 29,121 | $2.51M | 0.00% | −25,100−46.3% | Reduced |
| Franklin Resources Inc | 33,248 | $2.67M | 0.00% | −41,424−55.5% | Reduced |
| Alliancebernstein L.P. | 34,246 | $2.75M | 0.00% | −35,398−50.8% | Reduced |
| LPL Financial LLC | 34,574 | $2.78M | 0.00% | −14,394−29.4% | Reduced |
| Bridgeway Capital Management, LLC | 36,000 | $2.89M | 0.06% | +5,000+16.1% | Added |
| Amundi | 37,274 | $2.99M | 0.00% | +3,256+9.6% | Added |
| AQR Capital Management LLC | 37,581 | $3.02M | 0.00% | +930+2.5% | Added |
| Bessemer Group Inc | 37,972 | $3.05M | 0.00% | +37,748+16,851.8% | Added |
| Private Advisor Group, LLC | 38,482 | $3.09M | 0.01% | −7,413−16.2% | Reduced |