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, Q1 2026
Institutional positions in Axcelis Technologies Inc as of Mar 31, 2026. 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
- 380
- +12 vs. Q4 2025
- Shares held
- 32.6M
- +5.48M (+20.2%) vs. Q4 2025
- Total value
- $3.03B
- +$851.0M (+39.0%) vs. Q4 2025
- New holders
- 70
- 99 more added
- Sold out
- 58
- 134 more reduced
5 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Axcelis Technologies Inc; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Schonfeld Strategic Advisors LLC | 17,935 | $1.67M | 0.01% | −3,247−15.3% | Reduced |
| MetLife Investment Management | 17,235 | $1.60M | 0.01% | +188+1.1% | Added |
| Burney Co | 16,845 | $1.57M | 0.05% | −7,876−31.9% | Reduced |
| Virginia Retirement Systems Et Al | 16,438 | $1.53M | 0.01% | −200−1.2% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 15,678 | $1.46M | 0.00% | +15,678 | New |
| Illinois Municipal Retirement Fund | 15,080 | $1.40M | 0.02% | −481−3.1% | Reduced |
| New York State Teachers Retirement System | 14,857 | $1.38M | 0.00% | −1,010−6.4% | Reduced |
| Virtu Financial LLC | 14,697 | $1.37M | 0.06% | +14,697 | New |
| Janus Henderson Group PLC | 14,628 | $1.36M | 0.00% | −27,148−65.0% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 14,555 | $1.35M | 0.00% | +108+0.7% | Added |
| Intech Investment Management LLC | 14,506 | $1.35M | 0.01% | −25,957−64.1% | Reduced |
| Voya Investment Management LLC | 14,406 | $1.34M | 0.00% | −178−1.2% | Reduced |
| Winton Group Ltd | 14,151 | $1.32M | 0.05% | −573−3.9% | Reduced |
| Wiley Bros.-Aintree Capital, LLC | 14,087 | $1.31M | 0.01% | +134+1.0% | Added |
| Louisiana State Employees Retirement System | 13,600 | $1.27M | 0.02% | −600−4.2% | Reduced |
| Vident Advisory, LLC | 13,456 | $1.25M | 0.01% | +357+2.7% | Added |
| Wesbanco Bank Inc | 12,800 | $1.19M | 0.03% | +12,800 | New |
| Susquehanna International Group, LLP | 12,776 | $1.19M | 0.00% | −6,962−35.3% | Reduced |
| Millennium Management LLC | 12,532 | $1.17M | 0.00% | −117,558−90.4% | Reduced |
| RE Advisers Corp | 12,500 | $1.16M | 0.03% | 00.0% | Unchanged |
| Vanguard Global Advisers, LLC | 12,351 | $1.15M | 0.00% | +12,351 | New |
| Quantinno Capital Management LP | 12,336 | $1.15M | 0.00% | +1,122+10.0% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 12,181 | $1.13M | 0.00% | +855+7.5% | Added |
| Penbrook Management LLC | 12,095 | $1.13M | 0.85% | −3,800−23.9% | Reduced |
| Gotham Asset Management, LLC | 11,941 | $1.11M | 0.00% | −269−2.2% | Reduced |
| Pathstone Holdings, LLC | 11,850 | $1.10M | 0.00% | +3,542+42.6% | Added |
| HSBC Holdings PLC | 11,443 | $1.06M | 0.00% | −811−6.6% | Reduced |
| Oppenheimer Asset Management Inc. | 11,209 | $1.04M | 0.01% | +11,209 | New |
| Cambridge Investment Research Advisors, Inc. | 11,100 | $1.03M | 0.00% | −2,278−17.0% | Reduced |
| Entropy Technologies, LP | 10,790 | $1.00M | 0.05% | +10,790 | New |
| Illumine Investment Management, LLC | 10,163 | $946.0K | 0.73% | +46+0.5% | Added |
| New York State Common Retirement Fund | 10,150 | $944.8K | 0.00% | 00.0% | Unchanged |
| Moody National Bank Trust Division | 10,134 | $943.3K | 0.09% | +5,300+109.6% | Added |
| Royal Bank of Canada | 9,793 | $912.0K | 0.00% | +5,944+154.4% | Added |
| QRG Capital Management, Inc. | 9,596 | $893.2K | 0.01% | +6,754+237.6% | Added |
| JustInvest LLC | 9,488 | $883.1K | 0.01% | +347+3.8% | Added |
| Morningstar Investment Management LLC | 9,179 | $854.4K | 0.05% | −848−8.5% | Reduced |
| Fifth Third Bancorp | 9,059 | $843.3K | 0.00% | +8,680+2,290.2% | Added |
| Amalgamated Bank | 8,849 | $824.0K | 0.01% | −163−1.8% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 8,678 | $807.7K | 0.01% | +468+5.7% | Added |
| Arizona State Retirement System | 8,433 | $784.9K | 0.00% | −197−2.3% | Reduced |
| Guggenheim Capital LLC | 8,417 | $783.5K | 0.01% | +713+9.3% | Added |
| Bridgewater Associates, LP | 8,301 | $772.7K | 0.00% | +8,301 | New |
| Yousif Capital Management, LLC | 8,251 | $768.0K | 0.01% | −165−2.0% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 8,183 | $761.7K | 0.00% | −3,599−30.5% | Reduced |
| Handelsbanken Fonder AB | 8,100 | $754.0K | 0.00% | 00.0% | Unchanged |
| Summit Global Investments | 7,998 | $744.0K | 0.04% | 00.0% | Unchanged |
| Teachers Retirement System of the State of Kentucky | 7,973 | $742.0K | 0.01% | 00.0% | Unchanged |
| Peterson Wealth Services | 7,889 | $734.3K | 0.18% | +486+6.6% | Added |
| Russell Investments Group, Ltd. | 7,790 | $725.1K | 0.00% | +4,513+137.7% | Added |
| ProShare Advisors LLC | 7,776 | $723.8K | 0.00% | −1,202−13.4% | Reduced |
| Evolve Private Wealth, LLC | 7,706 | $717.3K | 0.04% | +677+9.6% | Added |
| Empirical Financial Services, LLC d.b.a. Empirical Wealth Management | 7,654 | $712.4K | 0.01% | +2,047+36.5% | Added |
| Vanguard Investments Australia, Ltd. | 7,602 | $707.6K | 0.00% | +7,602 | New |
| Adage Capital Partners GP, L.L.C. | 7,500 | $698.1K | 0.00% | +7,500 | New |
| Skopos Labs, Inc. | 7,398 | $688.6K | 0.02% | +1,855+33.5% | Added |
| North Star Investment Management Corp. | 7,392 | $688.0K | 0.04% | 00.0% | Unchanged |
| HighTower Advisors, LLC | 7,367 | $685.8K | 0.00% | +3,306+81.4% | Added |
| State Board of Administration of Florida Retirement System | 7,080 | $659.0K | 0.00% | 00.0% | Unchanged |
| Oregon Public Employees Retirement Fund | 7,023 | $653.7K | 0.01% | −37−0.5% | Reduced |
| Freestone Grove Partners LP | 7,017 | $653.1K | 0.00% | +28+0.4% | Added |
| MOKAN Wealth Management Inc. | 6,995 | $651.5K | 0.29% | +3,569+104.2% | Added |
| Western Wealth Management, LLC | 6,936 | $645.6K | 0.02% | +6,936 | New |
| MML Investors Services, LLC | 6,890 | $641.3K | 0.00% | −1,600−18.8% | Reduced |
| State of Tennessee, Treasury Department | 6,867 | $639.2K | 0.00% | 00.0% | Unchanged |
| Martingale Asset Management L P | 6,818 | $634.6K | 0.02% | −10−0.1% | Reduced |
| IMC-Chicago, LLC | 6,736 | $627.0K | 0.01% | +6,736 | New |
| White Pine Capital LLC | 6,671 | $620.9K | 0.17% | 00.0% | Unchanged |
| KLP Kapitalforvaltning AS | 6,600 | $614.3K | 0.00% | −4,600−41.1% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 6,592 | $613.6K | 0.00% | −82−1.2% | Reduced |
| Brookwood Investment Group LLC | 6,519 | $606.8K | 0.08% | −1,881−22.4% | Reduced |
| Merit Financial Group, LLC | 6,397 | $595.4K | 0.00% | −470−6.8% | Reduced |
| Bokf, NA | 6,221 | $579.1K | 0.01% | +6,221 | New |
| Eagle Bay Advisors LLC | 6,200 | $577.1K | 0.51% | +3,000+93.8% | Added |
| Quadrature Capital Ltd | 6,075 | $565.5K | 0.01% | +6,075 | New |
| Gabelli Funds LLC | 6,053 | $563.4K | 0.00% | +20.0% | Added |
| XTX Topco Ltd | 5,819 | $541.6K | 0.01% | −952−14.1% | Reduced |
| CI Private Wealth, LLC | 5,595 | $520.8K | 0.00% | −197−3.4% | Reduced |
| Aviva PLC | 5,308 | $494.1K | 0.00% | −608−10.3% | Reduced |
| Cetera Investment Advisers | 5,127 | $477.2K | 0.00% | −4,828−48.5% | Reduced |
| O'Shaughnessy Asset Management, LLC | 5,086 | $473.4K | 0.00% | −720−12.4% | Reduced |
| DRW Securities, LLC | 5,052 | $470.2K | 0.03% | +5,052 | New |
| Federation des caisses Desjardins du Quebec | 5,021 | $467.4K | 0.00% | −325−6.1% | Reduced |
| Corient IA LLC | 5,000 | $465.4K | 0.44% | +5,000 | New |
| Pictet Asset Management Holding SA | 4,881 | $454.3K | 0.00% | +581+13.5% | Added |
| Maryland State Retirement & Pension System | 4,517 | $420.4K | 0.01% | 00.0% | Unchanged |
| Citadel Advisors LLC | 4,505 | $419.3K | 0.00% | −171,542−97.4% | Reduced |
| Vestcor Inc | 4,286 | $399.0K | 0.01% | −5,785−57.4% | Reduced |
| Lido Advisors, LLC | 4,259 | $396.5K | 0.00% | +648+17.9% | Added |
| Moors & Cabot, Inc. | 4,200 | $390.9K | 0.02% | −3,230−43.5% | Reduced |
| Leavell Investment Management, Inc. | 4,121 | $383.6K | 0.02% | +730+21.5% | Added |
| Alpine Global Management, LLC | 4,044 | $376.4K | 0.06% | +4,044 | New |
| Bank of Montreal | 4,025 | $374.6K | 0.00% | +755+23.1% | Added |
| Firsthand Capital Management, Inc. | 4,000 | $372.3K | 0.79% | 00.0% | Unchanged |
| Linden Thomas Advisory Services, LLC | 3,933 | $366.1K | 0.04% | +57+1.5% | Added |
| Atria Investments LLC | 3,906 | $363.6K | 0.00% | +3,906 | New |
| Catalyst Funds Management Pty Ltd | 3,800 | $353.7K | 0.06% | +3,800 | New |
| Brevan Howard Capital Management LP | 3,784 | $352.2K | 0.00% | −894−19.1% | Reduced |
| Advisor Group Holdings, Inc. | 3,696 | $344.0K | 0.00% | +1,040+39.2% | Added |
| Numerai GP LLC | 3,638 | $338.6K | 0.03% | +3,638 | New |