Axcelis TechnologiesACLS
13F holders, Q4 2025 (December 31)373holders +12
53new positions
49sold out
8famous investors
$80.44avg. 13F price*
At the end of Q4 2025, 373 institutions reported holding Axcelis Technologies Inc. (ACLS) in their 13F filings, up 12 from Q3 2025. 53 opened new positions and 49 sold out. The largest holders were BlackRock, Inc. ($387.8M), Vanguard Group Inc. ($331.2M) and Victory Capital Management Inc. ($145.2M). 8 famous investors held it, including Jeremy Grantham (0.1% of GMO's portfolio), David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Axcelis Technologies Inc.
- CUSIP
- 054540208
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 53 | $26.3M |
| Exits | 49 | $30.5M |
All 13F filers, Q3 2025 → Q4 2025: 3,747,428 shares bought and 2,861,764 shares sold, net +885,664 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 373 holders
| BlackRock, Inc. | 0.01% | Reduce -0.8% | 4,827,575 | $387.8M |
| Vanguard Group Inc. | 0.00% | Reduce -1.5% | 4,122,529 | $331.2M |
| Victory Capital Management Inc. | 0.08% | Add +85.9% | 1,807,404 | $145.2M |
| Reinhart Partners, Llc. | 3.83% | Reduce -1.3% | 1,589,898 | $127.7M |
| American Century Companies Inc. | 0.05% | Reduce -8.3% | 1,233,646 | $99.1M |
| State Street Corp. | 0.00% | Reduce -3.6% | 1,186,227 | $95.3M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0.10% | Add +17.3% | 1,091,094 | $87.7M |
| Geode Capital Management, LLC | 0.00% | Reduce -1.0% | 917,747 | $73.7M |
| Dimensional Fund Advisors LP | 0.01% | Add +9.3% | 841,040 | $67.6M |
| Primecap Management Co. | 0.04% | Reduce -20.2% | 664,942 | $53.4M |
| Goldman Sachs Group Inc. | 0.01% | Add +27.3% | 629,814 | $50.6M |
| FMR LLC | 0.00% | Add +10.7% | 610,603 | $49.1M |
| Invesco Ltd. | 0.00% | Add +23.8% | 478,897 | $38.5M |
| D. E. Shaw & Co. | 0.03% | Add +204.7% | 470,285 | $37.8M |
| Boston Partners | 0.04% | Reduce -9.9% | 422,435 | $35.1M |
| Charles Schwab Investment Management Inc. | 0.01% | Add +1.0% | 431,195 | $34.6M |
| LSV Asset Management | 0.08% | Add +36.4% | 429,500 | $34.5M |
| Boston Trust Walden Corp | 0.26% | Reduce -7.1% | 427,736 | $34.4M |
| Northern Trust Corp. | 0.00% | Reduce -6.9% | 405,146 | $32.5M |
| T. Rowe Price Associates Inc. | 0.00% | Reduce -28.0% | 383,056 | $30.8M |
| JPMorgan Chase & Co. | 0.00% | Add +64.5% | 357,502 | $28.7M |
| Morgan Stanley | 0.00% | Reduce -22.9% | 350,220 | $28.1M |
| GMO | 0.07% | Reduce -27.3% | 322,849 | $25.9M |
| Allspring Global Investments Holdings, LLC | 0.04% | Add +142.7% | 266,015 | $22.9M |
| Federated Hermes, Inc. | 0.04% | Add +26.8% | 276,266 | $22.2M |
| Balyasny Asset Management L.P. | 0.04% | Add +10368.7% | 243,503 | $19.6M |
| Voloridge Investment Management, LLC | 0.06% | Add +131.8% | 220,713 | $17.7M |
| UBS Group AG | 0.00% | Add +67.6% | 213,388 | $17.1M |
| Arrowstreet Capital, Limited Partnership | 0.01% | Add +80.0% | 212,050 | $17.0M |
| Kennedy Capital Management LLC | 0.35% | Add +12.4% | 205,737 | $16.5M |
| Bank of New York Mellon Corp | 0.00% | Reduce -7.2% | 203,536 | $16.4M |
| Principal Financial Group Inc. | 0.01% | Add +8.0% | 200,025 | $16.1M |
| Citadel Advisors | 0.01% | Add +556.2% | 176,047 | $14.1M |
| BNP Paribas Financial Markets | 0.01% | Reduce -42.2% | 164,027 | $13.2M |
| Squarepoint Ops LLC | 0.03% | Add +19.3% | 153,703 | $12.3M |
| First Eagle Investment Management, LLC | 0.02% | Add +4.6% | 136,318 | $11.0M |
| Millennium Management | 0.01% | Reduce -50.3% | 130,090 | $10.5M |
| Public Sector Pension Investment Board | 0.04% | Add +5.9% | 129,777 | $10.4M |
| Bank of America Corp. | 0.00% | Reduce -71.2% | 118,206 | $9.5M |
| Royce & Associates LP | 0.09% | Reduce -19.6% | 116,375 | $9.3M |
| Citigroup Inc. | 0.01% | Reduce -65.9% | 110,470 | $8.9M |
| Clark Capital Management Group, Inc. | 0.05% | Add +14.2% | 110,294 | $8.9M |
| Segall Bryant & Hamill, LLC | 0.11% | Add +74.3% | 102,187 | $8.2M |
| BlackBarn Capital Partners LP | 2.78% | Reduce -51.7% | 96,573 | $7.8M |
| First Trust Advisors LP | 0.01% | Add +60.0% | 88,396 | $7.1M |
| Norges Bank | 0.00% | — | 88,147 | $7.1M |
| Rhumbline Advisers | 0.01% | Reduce -9.1% | 88,109 | $7.1M |
| Zacks Investment Management | 0.06% | Add +335.8% | 88,080 | $7.1M |
| Ameriprise Financial Inc. | 0.00% | Reduce -27.1% | 86,057 | $6.9M |
| Wells Fargo & Company | 0.00% | Add +9.2% | 79,752 | $6.4M |
| Jane Street Group, LLC | 0.01% | Add +176.3% | 79,049 | $6.4M |
| Legal & General Group Plc | 0.00% | Reduce -6.0% | 78,055 | $6.3M |
| Barclays PLC | 0.00% | Add +9.2% | 75,982 | $6.1M |
| Creative Planning | 0.00% | Add +1.2% | 73,500 | $5.9M |
| Two Sigma Investments, LP | 0.01% | Add +91.7% | 71,244 | $5.7M |
| Nuveen, LLC | 0.00% | Reduce -3.9% | 70,393 | $5.7M |
| Susquehanna Portfolio Strategies, LLC | 0.08% | Reduce -4.0% | 68,213 | $5.5M |
| Renaissance Technologies | 0.01% | New | 66,899 | $5.4M |
| Swiss National Bank | 0.00% | Reduce -1.8% | 61,200 | $4.9M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Reduce -7.6% | 61,097 | $4.9M |
| Paradigm Capital Management Inc. | 0.19% | Reduce -0.2% | 56,000 | $4.5M |
| Globeflex Capital L P | 0.69% | No change | 55,997 | $4.5M |
| QSM Asset Management Ltd | 2.44% | No change | 53,166 | $4.3M |
| Envestnet Asset Management Inc. | 0.00% | Add +23.0% | 52,497 | $4.2M |
| State of Wisconsin Investment Board | 0.01% | Add +0.6% | 50,506 | $4.1M |
| Soviero Asset Management, LP | 1.93% | Add +48.4% | 46,000 | $3.7M |
| Harbor Capital Advisors, Inc. | 0.28% | Reduce -0.8% | 44,687 | $3.6M |
| Janus Henderson Group PLC | 0.00% | Reduce -82.3% | 41,776 | $3.4M |
| Isthmus Partners, LLC | 0.37% | Reduce -1.3% | 41,480 | $3.3M |
| Ossiam | 0.07% | No change | 40,700 | $3.3M |
| Intech Investment Management LLC | 0.03% | Add +129.0% | 40,463 | $3.3M |
| F/m Investments LLC | 0.12% | Add +91.3% | 40,294 | $3.2M |
| Prudential Financial Inc. | 0.00% | Reduce -10.9% | 39,565 | $3.2M |
| Private Advisor Group, LLC | 0.01% | Reduce -16.1% | 38,482 | $3.1M |
| Bessemer Group Inc. | 0.00% | Add +16851.8% | 37,972 | $3.0M |
| AQR Capital Management | 0.00% | Add +2.5% | 37,581 | $3.0M |
| Amundi | 0.00% | Add +9.6% | 37,274 | $3.0M |
| Bridgeway Capital Management, LLC | 0.06% | Add +16.1% | 36,000 | $2.9M |
| LPL Financial LLC | 0.00% | Reduce -29.4% | 34,574 | $2.8M |
| Alliancebernstein L.P. | 0.00% | Reduce -50.8% | 34,246 | $2.8M |
| Franklin Resources Inc. | 0.00% | Reduce -55.5% | 33,248 | $2.7M |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.00% | Reduce -46.3% | 29,121 | $2.5M |
| California State Teachers Retirement System | 0.00% | Reduce -0.3% | 30,030 | $2.4M |
| Bridges Investment Management Inc. | 0.03% | Reduce -10.4% | 28,400 | $2.3M |
| Sei Investments Co. | 0.00% | Add +98.8% | 27,976 | $2.2M |
| AlphaQuest LLC | 0.12% | Add +91.2% | 26,367 | $2.1M |
| CANADA LIFE ASSURANCE Co | 0.00% | Reduce -20.3% | 26,302 | $2.1M |
| Deutsche Bank AG | 0.00% | Add +1.9% | 25,920 | $2.1M |
| Algert Global LLC | 0.03% | Reduce -18.6% | 25,340 | $2.0M |
| Abn Amro Investment Solutions | 0.03% | Add +42.6% | 24,798 | $2.0M |
| Burney Co./ | 0.06% | New | 24,721 | $2.0M |
| Stifel Financial Corp. | 0.00% | Add +12.0% | 24,347 | $2.0M |
| Aquatic Capital Management LLC | 0.05% | New | 22,642 | $1.8M |
| State of Alaska, Department of Revenue | 0.02% | Add +42.8% | 22,568 | $1.8M |
| Elo Mutual Pension Insurance Co | 0.03% | New | 22,446 | $1.8M |
| Janney Montgomery Scott LLC | 0.00% | Reduce -36.9% | 22,436 | $1.8M |
| Jackson Creek Investment Advisors LLC | 0.52% | Reduce -1.1% | 22,054 | $1.8M |
| Thrivent Financial for Lutherans | 0.00% | Reduce -6.0% | 21,301 | $1.7M |
| Schonfeld Strategic Advisors LLC | 0.01% | Reduce -43.7% | 21,182 | $1.7M |
| Verition Fund Management LLC | 0.01% | Reduce -40.8% | 21,177 | $1.7M |
"% of holder's portfolio" is ACLS's weight in each manager's 13F, not the share of Axcelis Technologies Inc. the manager owns.