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; 443 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 | 443 | $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 |
|---|---|---|---|---|---|
| Tudor Investment Corp Et Al | 20,741 | $1.67M | 0.01% | +20,741 | New |
| Needham Investment Management LLC | 20,000 | $1.61M | 0.10% | +20,000 | New |
| Susquehanna International Group, LLP | 19,738 | $1.59M | 0.00% | +12,954+190.9% | Added |
| Dynamic Technology Lab Private Ltd | 19,470 | $1.56M | 0.35% | +19,470 | New |
| Mizuho Markets Cayman LP | 18,816 | $1.51M | 0.08% | +3,200+20.5% | Added |
| ARGA Investment Management, LP | 18,534 | $1.49M | 0.04% | 00.0% | Unchanged |
| Wakefield Asset Management LLLP | 18,133 | $1.46M | 0.40% | +42+0.2% | Added |
| Old West Investment Management, LLC | 18,064 | $1.45M | 0.26% | +1,796+11.0% | Added |
| Oliver Luxxe Assets LLC | 18,063 | $1.45M | 0.22% | +18,063 | New |
| Twinbeech Capital LP | 18,000 | $1.45M | 0.10% | +18,000 | New |
| Bridgefront Capital, LLC | 17,765 | $1.43M | 0.36% | +7,870+79.5% | Added |
| MetLife Investment Management | 17,047 | $1.37M | 0.01% | −1,693−9.0% | Reduced |
| Virginia Retirement Systems Et Al | 16,638 | $1.34M | 0.01% | 00.0% | Unchanged |
| Penbrook Management LLC | 15,895 | $1.28M | 0.88% | −1,000−5.9% | Reduced |
| New York State Teachers Retirement System | 15,867 | $1.27M | 0.00% | 00.0% | Unchanged |
| Holocene Advisors, LP | 15,679 | $1.26M | 0.00% | +1,792+12.9% | Added |
| Illinois Municipal Retirement Fund | 15,561 | $1.25M | 0.02% | −541−3.4% | Reduced |
| Winton Group Ltd | 14,724 | $1.18M | 0.04% | +256+1.8% | Added |
| Voya Investment Management LLC | 14,584 | $1.17M | 0.00% | −92−0.6% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 14,447 | $1.16M | 0.00% | −533−3.6% | Reduced |
| Raymond James Financial Inc | 14,322 | $1.15M | 0.00% | −373−2.5% | Reduced |
| Louisiana State Employees Retirement System | 14,200 | $1.14M | 0.02% | −200−1.4% | Reduced |
| SG Americas Securities, LLC | 14,166 | $1.14M | 0.00% | +14,166 | New |
| Manufacturers Life Insurance Company, The | 14,040 | $1.13M | 0.00% | −1,259−8.2% | Reduced |
| Wiley Bros.-Aintree Capital, LLC | 13,953 | $1.12M | 0.01% | −656−4.5% | Reduced |
| Quantbot Technologies LP | 13,619 | $1.09M | 0.04% | −2,537−15.7% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 13,378 | $1.07M | 0.00% | −583−4.2% | Reduced |
| Vident Advisory, LLC | 13,099 | $1.05M | 0.01% | −567−4.1% | Reduced |
| RE Advisers Corp | 12,500 | $1.00M | 0.03% | −21,700−63.5% | Reduced |
| HSBC Holdings PLC | 12,254 | $991.5K | 0.00% | −8,507−41.0% | Reduced |
| Gotham Asset Management, LLC | 12,210 | $981.0K | 0.00% | +1,195+10.8% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 11,782 | $960.3K | 0.00% | −2,866−19.6% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 11,326 | $909.9K | 0.00% | 00.0% | Unchanged |
| Quantinno Capital Management LP | 11,214 | $900.9K | 0.00% | +1,865+19.9% | Added |
| KLP Kapitalforvaltning AS | 11,200 | $899.8K | 0.00% | +100+0.9% | Added |
| Engineers Gate Manager LP | 11,167 | $897.2K | 0.01% | +7,596+212.7% | Added |
| New York State Common Retirement Fund | 10,150 | $815.5K | 0.00% | 00.0% | Unchanged |
| Illumine Investment Management, LLC | 10,117 | $812.8K | 0.59% | +86+0.9% | Added |
| Vestcor Inc | 10,071 | $809.0K | 0.02% | +5,785+135.0% | Added |
| Morningstar Investment Management LLC | 10,027 | $806.0K | 0.05% | 00.0% | Unchanged |
| Cetera Investment Advisers | 9,955 | $799.8K | 0.00% | +3,863+63.4% | Added |
| Two Sigma Securities, LLC | 9,333 | $749.8K | 0.10% | +9,333 | New |
| Yousif Capital Management, LLC | 8,416 | $742.0K | 0.01% | −1,311−13.5% | Reduced |
| JustInvest LLC | 9,141 | $734.4K | 0.01% | −102−1.1% | Reduced |
| Amalgamated Bank | 9,012 | $724.0K | 0.01% | −60−0.7% | Reduced |
| ProShare Advisors LLC | 8,978 | $721.3K | 0.00% | −443−4.7% | Reduced |
| Comerica Bank | 8,969 | $720.6K | 0.00% | −752−7.7% | Reduced |
| Arizona State Retirement System | 8,630 | $693.3K | 0.00% | −875−9.2% | Reduced |
| MML Investors Services, LLC | 8,490 | $682.1K | 0.00% | +4,765+127.9% | Added |
| Brookwood Investment Group LLC | 8,400 | $674.9K | 0.08% | 00.0% | Unchanged |
| Pathstone Holdings, LLC | 8,308 | $667.5K | 0.00% | −3,301−28.4% | Reduced |
| James Investment Research Inc | 8,281 | $665.3K | 0.07% | 00.0% | Unchanged |
| Police & Firemen's Retirement System of New Jersey | 8,210 | $659.6K | 0.01% | −719−8.1% | Reduced |
| Handelsbanken Fonder AB | 8,100 | $651.0K | 0.00% | 00.0% | Unchanged |
| Summit Global Investments | 7,998 | $643.0K | 0.04% | −87−1.1% | Reduced |
| Teachers Retirement System of the State of Kentucky | 7,973 | $640.0K | 0.00% | −1,176−12.9% | Reduced |
| Guggenheim Capital LLC | 7,704 | $618.9K | 0.00% | −161−2.0% | Reduced |
| State of Tennessee, Treasury Department | 6,867 | $604.8K | 0.00% | −4,937−41.8% | Reduced |
| Teacher Retirement System of Texas | 7,519 | $604.1K | 0.00% | +1,462+24.1% | Added |
| Moors & Cabot, Inc. | 7,430 | $596.9K | 0.03% | −1,000−11.9% | Reduced |
| Peterson Wealth Services | 7,403 | $594.8K | 0.15% | +7,003+1,750.8% | Added |
| North Star Investment Management Corp. | 7,392 | $593.9K | 0.04% | 00.0% | Unchanged |
| State Board of Administration of Florida Retirement System | 7,080 | $568.8K | 0.00% | 00.0% | Unchanged |
| Oregon Public Employees Retirement Fund | 7,060 | $567.2K | 0.01% | 00.0% | Unchanged |
| Unique Wealth Strategies, LLC | 7,060 | $567.2K | 0.22% | +7,060 | New |
| Evolve Private Wealth, LLC | 7,029 | $564.7K | 0.03% | +7,029 | New |
| Freestone Grove Partners LP | 6,989 | $561.5K | 0.00% | +6,989 | New |
| Merit Financial Group, LLC | 6,867 | $551.7K | 0.00% | +773+12.7% | Added |
| Martingale Asset Management L P | 6,828 | $548.6K | 0.01% | 00.0% | Unchanged |
| XTX Topco Ltd | 6,771 | $544.0K | 0.01% | +6,771 | New |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 6,674 | $536.2K | 0.00% | −1,328−16.6% | Reduced |
| White Pine Capital LLC | 6,671 | $535.9K | 0.15% | −229−3.3% | Reduced |
| Gabelli Funds LLC | 6,051 | $486.1K | 0.00% | −371−5.8% | Reduced |
| Aviva PLC | 5,916 | $475.3K | 0.00% | +403+7.3% | Added |
| O'Shaughnessy Asset Management, LLC | 5,806 | $466.5K | 0.00% | +2,779+91.8% | Added |
| CI Private Wealth, LLC | 5,792 | $465.9K | 0.00% | +222+4.0% | Added |
| Gsa Capital Partners LLP | 5,762 | $463.0K | 0.04% | −2,804−32.7% | Reduced |
| Skopos Labs, Inc. | 5,543 | $453.5K | 0.02% | +5,543 | New |
| Empirical Financial Services, LLC d.b.a. Empirical Wealth Management | 5,607 | $450.5K | 0.01% | +5,607 | New |
| Canada Pension Plan Investment Board | 5,600 | $449.9K | 0.00% | +2,900+107.4% | Added |
| Los Angeles Capital Management LLC | 5,480 | $448.5K | 0.00% | +5,480 | New |
| Federation des caisses Desjardins du Quebec | 5,346 | $429.5K | 0.00% | −264−4.7% | Reduced |
| Cerity Partners LLC | 5,052 | $405.9K | 0.00% | −779−13.4% | Reduced |
| Everence Capital Management Inc | 4,880 | $392.0K | 0.02% | 00.0% | Unchanged |
| Moody National Bank Trust Division | 4,834 | $388.4K | 0.04% | +2,204+83.8% | Added |
| Brevan Howard Capital Management LP | 4,678 | $375.8K | 0.01% | −9,140−66.1% | Reduced |
| HRT Financial LP | 4,576 | $367.0K | 0.00% | −2,554−35.8% | Reduced |
| Maryland State Retirement & Pension System | 4,517 | $362.9K | 0.01% | 00.0% | Unchanged |
| Wealth Enhancement Advisory Services, LLC | 3,713 | $360.1K | 0.00% | −2,002−35.0% | Reduced |
| Pictet Asset Management Holding SA | 4,300 | $345.5K | 0.00% | 00.0% | Unchanged |
| Lido Advisors, LLC | 3,611 | $338.7K | 0.00% | +93+2.6% | Added |
| Mackenzie Financial Corp | 4,122 | $335.5K | 0.00% | −35−0.8% | Reduced |
| HighTower Advisors, LLC | 4,061 | $326.3K | 0.00% | +419+11.5% | Added |
| Net Worth Advisory Group | 4,024 | $323.3K | 0.07% | +477+13.4% | Added |
| Firsthand Capital Management, Inc. | 4,000 | $321.4K | 0.60% | 00.0% | Unchanged |
| Linden Thomas Advisory Services, LLC | 3,876 | $311.4K | 0.03% | −209−5.1% | Reduced |
| Royal Bank of Canada | 3,849 | $310.0K | 0.00% | −165,016−97.7% | Reduced |
| Mercer Global Advisors Inc | 3,721 | $299.0K | 0.00% | +951+34.3% | Added |
| Wealth Effects LLC | 3,647 | $293.0K | 0.09% | +3,647 | New |
| Pacer Advisors, Inc. | 3,615 | $290.4K | 0.00% | −870−19.4% | Reduced |