Axcelis TechnologiesACLS
13F holders, Q1 2026 (March 31)380holders +7
62new positions
57sold out
8famous investors
$93.06avg. 13F price*
At the end of Q1 2026, 380 institutions reported holding Axcelis Technologies Inc. (ACLS) in their 13F filings, up 7 from Q4 2025. 62 opened new positions and 57 sold out. The largest holders were BlackRock, Inc. ($459.5M), Vanguard Portfolio Management LLC ($231.6M) and FMR LLC ($226.3M). 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 Joel Greenblatt (0.0% of Gotham Asset Management's portfolio).
- Company
- Axcelis Technologies Inc.
- CUSIP
- 054540208
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 62 | $73.0M |
| Exits | 57 | $89.6M |
All 13F filers, Q4 2025 → Q1 2026: 5,457,643 shares bought and 4,116,845 shares sold, net +1,340,798 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 380 holders
| BlackRock, Inc. | 0.01% | Add +2.3% | 4,936,774 | $459.5M |
| Vanguard Portfolio Management LLC | 0.01% | — | 2,488,293 | $231.6M |
| FMR LLC | 0.01% | Add +298.1% | 2,431,121 | $226.3M |
| Reinhart Partners, Llc. | 4.44% | Add +4.3% | 1,657,745 | $154.3M |
| Vanguard Capital Management LLC | 0.00% | — | 1,382,770 | $128.7M |
| Balyasny Asset Management L.P. | 0.26% | Add +460.4% | 1,364,540 | $127.0M |
| Victory Capital Management Inc. | 0.08% | Reduce -29.2% | 1,279,005 | $119.0M |
| State Street Corp. | 0.00% | Add +0.2% | 1,189,045 | $110.7M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0.11% | Reduce -7.8% | 1,006,028 | $93.6M |
| American Century Companies Inc. | 0.05% | Reduce -22.8% | 951,914 | $88.6M |
| Dimensional Fund Advisors LP | 0.02% | Add +0.4% | 844,097 | $78.6M |
| Geode Capital Management, LLC | 0.00% | Reduce -11.6% | 811,264 | $75.5M |
| Primecap Management Co. | 0.05% | Reduce -0.9% | 658,652 | $61.3M |
| Morgan Stanley | 0.00% | Add +66.1% | 581,636 | $54.1M |
| D. E. Shaw & Co. | 0.04% | Add +15.8% | 544,421 | $50.7M |
| Goldman Sachs Group Inc. | 0.01% | Reduce -21.0% | 497,624 | $46.3M |
| Manufacturers Life Insurance Company, The | 0.04% | Add +3402.5% | 491,745 | $45.8M |
| Charles Schwab Investment Management Inc. | 0.01% | Add +3.4% | 445,769 | $41.5M |
| LSV Asset Management | 0.09% | No change | 429,500 | $40.0M |
| Northern Trust Corp. | 0.01% | Add +2.9% | 416,703 | $38.8M |
| Boston Trust Walden Corp | 0.29% | Reduce -11.5% | 378,525 | $35.2M |
| UBS Group AG | 0.01% | Add +76.8% | 377,237 | $35.1M |
| T. Rowe Price Associates Inc. | 0.00% | Reduce -5.4% | 362,202 | $33.7M |
| Boston Partners | 0.03% | Reduce -19.4% | 340,275 | $31.8M |
| GMO | 0.08% | Add +3.7% | 334,786 | $31.2M |
| Allspring Global Investments Holdings, LLC | 0.04% | Reduce -2.8% | 258,536 | $24.7M |
| JPMorgan Chase & Co. | 0.00% | Reduce -37.7% | 222,714 | $20.1M |
| Principal Financial Group Inc. | 0.01% | Add +5.1% | 210,202 | $19.6M |
| Federated Hermes, Inc. | 0.03% | Reduce -24.3% | 209,198 | $19.5M |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 200,465 | $18.7M |
| Segall Bryant & Hamill, LLC | 0.27% | Add +96.1% | 200,371 | $18.7M |
| Bank of New York Mellon Corp | 0.00% | Reduce -1.9% | 199,672 | $18.6M |
| Two Sigma Investments, LP | 0.02% | Add +177.3% | 197,566 | $18.4M |
| Kennedy Capital Management LLC | 0.35% | Reduce -13.5% | 178,016 | $16.6M |
| Invesco Ltd. | 0.00% | Reduce -65.5% | 165,075 | $15.4M |
| BNP Paribas Financial Markets | 0.01% | Reduce -11.8% | 144,678 | $13.5M |
| First Trust Advisors LP | 0.01% | Add +55.9% | 137,779 | $12.8M |
| Royce & Associates LP | 0.12% | Add +7.7% | 125,280 | $11.7M |
| Bank of America Corp. | 0.00% | Reduce -6.1% | 110,999 | $10.3M |
| Public Sector Pension Investment Board | 0.03% | Reduce -15.4% | 109,791 | $10.2M |
| First Eagle Investment Management, LLC | 0.02% | Reduce -26.2% | 100,551 | $9.4M |
| Emerald Advisers, LLC | 0.28% | New | 96,238 | $9.0M |
| Rhumbline Advisers | 0.01% | Reduce -0.9% | 87,307 | $8.1M |
| Sagefield Capital LP | 0.55% | New | 82,238 | $7.7M |
| Ameriprise Financial Inc. | 0.00% | Reduce -8.6% | 78,695 | $7.3M |
| Creative Planning | 0.00% | Add +5.7% | 77,712 | $7.2M |
| Portolan Capital Management, LLC | 0.38% | New | 77,168 | $7.2M |
| Legal & General Group Plc | 0.00% | Reduce -7.9% | 71,909 | $6.7M |
| Nuveen, LLC | 0.00% | Add +1.4% | 71,385 | $6.6M |
| Susquehanna Portfolio Strategies, LLC | 0.09% | No change | 68,213 | $6.3M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +5.7% | 64,550 | $6.0M |
| Swiss National Bank | 0.00% | No change | 61,200 | $5.7M |
| Wells Fargo & Company | 0.00% | Reduce -35.2% | 51,701 | $4.8M |
| Holocene Advisors, LP | 0.01% | Add +228.9% | 51,575 | $4.8M |
| QSM Asset Management Ltd | 2.27% | Reduce -3.0% | 51,571 | $4.6M |
| Mercer Global Advisors Inc. | 0.01% | Add +1189.3% | 47,976 | $4.5M |
| Great Lakes Advisors, LLC | 0.04% | New | 47,594 | $4.4M |
| Emerald Mutual Fund Advisers Trust | 0.21% | New | 47,412 | $4.4M |
| Sei Investments Co. | 0.00% | Add +61.0% | 45,035 | $4.2M |
| Globeflex Capital L P | 0.63% | Reduce -20.6% | 44,455 | $4.1M |
| Voloridge Investment Management, LLC | 0.02% | Reduce -80.0% | 44,246 | $4.1M |
| Needham Investment Management LLC | 0.20% | Add +112.5% | 42,500 | $4.0M |
| Old West Investment Management, LLC | 0.43% | Add +135.2% | 42,481 | $4.0M |
| Harbor Capital Advisors, Inc. | 0.32% | Reduce -6.4% | 41,831 | $3.9M |
| ARGA Investment Management, LP | 0.13% | Add +123.4% | 41,408 | $3.9M |
| State of Wisconsin Investment Board | 0.01% | Reduce -18.4% | 41,207 | $3.8M |
| Ossiam | 0.07% | No change | 40,700 | $3.8M |
| Amundi | 0.00% | Add +9.0% | 40,627 | $3.8M |
| Allianz Asset Management GmbH | 0.00% | New | 40,133 | $3.7M |
| AQR Capital Management | 0.00% | Add +6.5% | 40,015 | $3.7M |
| Emerald Investment Advisers, LLC | 0.33% | — | 39,764 | $3.7M |
| Isthmus Partners, LLC | 0.38% | Reduce -5.1% | 39,357 | $3.7M |
| Empowered Funds, LLC | 0.02% | New | 39,087 | $3.6M |
| Bridges Investment Management Inc. | 0.05% | Add +36.0% | 38,637 | $3.6M |
| Bessemer Group Inc. | 0.01% | Add +0.1% | 38,001 | $3.5M |
| California State Teachers Retirement System | 0.00% | Add +21.3% | 36,420 | $3.4M |
| Alberta Investment Management Corp | 0.02% | New | 35,750 | $3.3M |
| Barclays PLC | 0.00% | Reduce -53.5% | 35,371 | $3.3M |
| Voleon Capital Management LP | 0.07% | New | 35,221 | $3.3M |
| Toronto Dominion Bank | 0.01% | New | 34,008 | $3.2M |
| Squarepoint Ops LLC | 0.01% | Reduce -78.3% | 33,291 | $3.1M |
| Envestnet Asset Management Inc. | 0.00% | Reduce -39.5% | 31,781 | $3.0M |
| Prudential Financial Inc. | 0.00% | Reduce -20.7% | 31,377 | $2.9M |
| Alliancebernstein L.P. | 0.00% | Add +0.7% | 34,489 | $2.8M |
| Inspire Advisors, LLC | 0.22% | New | 29,411 | $2.7M |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.00% | No change | 29,121 | $2.7M |
| Deutsche Bank AG | 0.00% | Add +11.3% | 28,859 | $2.7M |
| VANGUARD ASSET MANAGEMENT, Ltd | 0.00% | — | 27,199 | $2.5M |
| Franklin Resources Inc. | 0.00% | Reduce -19.6% | 26,719 | $2.5M |
| CANADA LIFE ASSURANCE Co | 0.00% | Reduce -4.4% | 25,154 | $2.3M |
| Abn Amro Investment Solutions | 0.03% | Reduce -0.6% | 24,650 | $2.3M |
| Citigroup Inc. | 0.00% | Reduce -77.7% | 24,645 | $2.3M |
| Paradigm Capital Management Inc. | 0.09% | Reduce -57.1% | 24,000 | $2.2M |
| Yakira Capital Management, Inc. | 0.62% | New | 22,619 | $2.1M |
| Stifel Financial Corp. | 0.00% | Reduce -7.2% | 22,584 | $2.1M |
| LPL Financial LLC | 0.00% | Reduce -34.9% | 22,497 | $2.1M |
| Janney Montgomery Scott LLC | 0.01% | Reduce -1.3% | 22,150 | $2.1M |
| State of Alaska, Department of Revenue | 0.02% | Reduce -2.6% | 21,979 | $2.0M |
| Hussman Strategic Advisors, Inc. | 0.42% | New | 21,000 | $2.0M |
| Thrivent Financial for Lutherans | 0.00% | Reduce -3.8% | 20,491 | $1.9M |
"% of holder's portfolio" is ACLS's weight in each manager's 13F, not the share of Axcelis Technologies Inc. the manager owns.