Axcelis TechnologiesACLS
13F holders, Q1 2025 (March 31)306holders −18
45new positions
66sold out
7famous investors
$49.58avg. 13F price*
At the end of Q1 2025, 306 institutions reported holding Axcelis Technologies Inc. (ACLS) in their 13F filings, down 18 from Q4 2024. 45 opened new positions and 66 sold out. The largest holders were BlackRock, Inc. ($265.2M), Vanguard Group Inc. ($220.5M) and Reinhart Partners, Llc. ($71.6M). 7 famous investors held it, including Jeremy Grantham (0.1% of GMO's portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).
- Company
- Axcelis Technologies Inc.
- CUSIP
- 054540208
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2024 → Q1 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 45 | $26.6M |
| Exits | 66 | $80.1M |
All 13F filers, Q4 2024 → Q1 2025: 3,930,611 shares bought and 3,742,721 shares sold, net +187,890 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 306 holders
| BlackRock, Inc. | 0.01% | Reduce -2.0% | 5,338,420 | $265.2M |
| Vanguard Group Inc. | 0.00% | Add +1.0% | 4,439,902 | $220.5M |
| Reinhart Partners, Llc. | 2.61% | Add +39.1% | 1,441,022 | $71.6M |
| State Street Corp. | 0.00% | Reduce -4.1% | 1,248,230 | $62.0M |
| American Century Companies Inc. | 0.03% | Add +7.6% | 1,140,495 | $56.6M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0.14% | Add +71.2% | 1,020,732 | $50.7M |
| Geode Capital Management, LLC | 0.00% | Add +3.1% | 925,571 | $46.0M |
| Bank of America Corp. | 0.00% | Add +222.3% | 919,403 | $45.7M |
| Primecap Management Co. | 0.03% | Reduce -8.9% | 835,066 | $41.5M |
| Boston Trust Walden Corp | 0.30% | Add +0.8% | 826,332 | $41.0M |
| Dimensional Fund Advisors LP | 0.01% | Reduce -3.2% | 701,275 | $34.8M |
| Goldman Sachs Group Inc. | 0.01% | Add +7.5% | 635,393 | $31.6M |
| GMO | 0.09% | Reduce -24.2% | 579,387 | $28.8M |
| T. Rowe Price Associates Inc. | 0.00% | Add +0.4% | 526,422 | $26.1M |
| Morgan Stanley | 0.00% | Add +2.4% | 507,380 | $25.2M |
| Amundi | 0.01% | Add +12.6% | 551,047 | $24.7M |
| Voloridge Investment Management, LLC | 0.09% | Add +116.2% | 481,300 | $23.9M |
| BlackBarn Capital Partners LP | 8.15% | Add +758.0% | 480,441 | $23.9M |
| Northern Trust Corp. | 0.00% | Add +2.5% | 401,931 | $20.0M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +4.3% | 386,007 | $19.2M |
| Boston Partners | 0.02% | Add +0.9% | 333,039 | $16.3M |
| Royce & Associates LP | 0.15% | Reduce -15.7% | 280,983 | $14.0M |
| UBS Group AG | 0.00% | Add +9.6% | 272,138 | $13.5M |
| Bank of New York Mellon Corp | 0.00% | Reduce -6.1% | 212,534 | $10.6M |
| Jackson Square Partners, LLC | 1.41% | Add +12.7% | 210,344 | $10.4M |
| Federated Hermes, Inc. | 0.02% | Add +7.1% | 194,192 | $9.6M |
| Principal Financial Group Inc. | 0.01% | Add +2.9% | 194,038 | $9.6M |
| Millennium Management | 0.01% | Reduce -36.6% | 183,995 | $9.1M |
| Paradigm Capital Management Inc. | 0.50% | Add +18.3% | 182,100 | $9.0M |
| JPMorgan Chase & Co. | 0.00% | Reduce -10.3% | 170,011 | $8.4M |
| Pacer Advisors, Inc. | 0.02% | Reduce -79.3% | 161,481 | $8.0M |
| Citigroup Inc. | 0.01% | Add +35.1% | 159,623 | $7.9M |
| Sei Investments Co. | 0.01% | Add +9.0% | 158,182 | $7.9M |
| Harbor Capital Advisors, Inc. | 0.32% | Add +60.1% | 140,582 | $7.0M |
| Invesco Ltd. | 0.00% | Add +5.4% | 138,251 | $6.9M |
| M&G PLC | 0.04% | Add +7.3% | 136,914 | $6.8M |
| BNP Paribas Financial Markets | 0.01% | Add +16.2% | 135,082 | $6.7M |
| Kennedy Capital Management LLC | 0.15% | Add +141.1% | 129,881 | $6.5M |
| Jane Street Group, LLC | 0.01% | Reduce -49.1% | 121,372 | $6.0M |
| Mizuho Markets Americas LLC | 0.13% | New | 119,376 | $5.9M |
| Royal Bank of Canada | 0.00% | Add +3.8% | 117,566 | $5.8M |
| Legal & General Group Plc | 0.00% | Reduce -2.3% | 105,255 | $5.2M |
| Public Sector Pension Investment Board | 0.02% | Add +27.2% | 103,067 | $5.1M |
| WINTON GROUP Ltd | 0.31% | Add +582.7% | 101,361 | $5.0M |
| Ameriprise Financial Inc. | 0.00% | Reduce -2.1% | 99,786 | $5.0M |
| Holocene Advisors, LP | 0.01% | Add +14.7% | 96,683 | $4.8M |
| Rhumbline Advisers | 0.00% | Add +6.4% | 96,647 | $4.8M |
| Walleye Capital LLC | 0.06% | Add +6485.2% | 94,169 | $4.7M |
| Nuveen, LLC | 0.00% | — | 89,536 | $4.4M |
| Renaissance Technologies | 0.01% | Reduce -57.8% | 89,499 | $4.4M |
| Norges Bank | 0.00% | Reduce -83.3% | 86,383 | $4.3M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +1.1% | 78,756 | $3.9M |
| State of Wisconsin Investment Board | 0.01% | Add +46.0% | 78,467 | $3.9M |
| Squarepoint Ops LLC | 0.01% | New | 73,002 | $3.6M |
| Susquehanna International Group, LLP | 0.01% | Reduce -11.8% | 65,357 | $3.2M |
| Quantbot Technologies LP | 0.10% | Add +72.4% | 65,091 | $3.2M |
| Swiss National Bank | 0.00% | Reduce -1.7% | 63,000 | $3.1M |
| Janus Henderson Group PLC | 0.00% | Reduce -31.2% | 62,253 | $3.1M |
| Alliancebernstein L.P. | 0.00% | Reduce -7.0% | 61,520 | $3.1M |
| Caxton Associates LLP | 0.11% | — | 60,941 | $3.0M |
| Numerai GP LLC | 0.57% | Add +155.7% | 60,755 | $3.0M |
| Engineers Gate Manager LP | 0.05% | Reduce -53.4% | 58,784 | $2.9M |
| LPL Financial LLC | 0.00% | Reduce -7.2% | 56,435 | $2.8M |
| Barclays PLC | 0.00% | Reduce -23.4% | 56,310 | $2.8M |
| HRT Financial LP | 0.02% | New | 54,763 | $2.7M |
| Private Advisor Group, LLC | 0.02% | Add +783.4% | 53,575 | $2.7M |
| FMR LLC | 0.00% | Add +124.9% | 49,607 | $2.5M |
| Creative Planning | 0.00% | Add +33.6% | 47,445 | $2.4M |
| ExodusPoint Capital Management, LP | 0.03% | New | 44,611 | $2.2M |
| Two Sigma Investments, LP | 0.01% | Add +125.8% | 44,344 | $2.2M |
| Jump Financial, LLC | 0.03% | Reduce -16.4% | 37,192 | $1.8M |
| CANADA LIFE ASSURANCE Co | 0.00% | Reduce -1.9% | 37,034 | $1.8M |
| Focus Partners Wealth | 0.00% | Add +152.9% | 36,430 | $1.8M |
| AQR Capital Management | 0.00% | Add +4.9% | 35,717 | $1.8M |
| Wells Fargo & Company | 0.00% | Add +18.0% | 35,493 | $1.8M |
| Verition Fund Management LLC | 0.01% | Reduce -19.9% | 35,016 | $1.7M |
| Homestead Advisers Corp | 0.04% | Add +15.5% | 34,200 | $1.7M |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.00% | No change | 33,521 | $1.7M |
| Rice Hall James & Associates, LLC | 0.10% | Add +0.0% | 32,883 | $1.6M |
| Optimize Financial Inc. | 0.60% | New | 32,251 | $1.6M |
| New Insight Wealth Advisors | 0.72% | New | 31,847 | $1.6M |
| Prudential Financial Inc. | 0.00% | Reduce -25.8% | 31,820 | $1.6M |
| Isthmus Partners, LLC | 0.20% | Add +11.8% | 31,621 | $1.6M |
| Thrivent Financial for Lutherans | 0.00% | Reduce -4.4% | 27,373 | $1.5M |
| California State Teachers Retirement System | 0.00% | Reduce -2.4% | 29,772 | $1.5M |
| Voya Investment Management LLC | 0.00% | Add +31.8% | 27,384 | $1.4M |
| Deutsche Bank AG | 0.00% | Reduce -7.5% | 26,363 | $1.3M |
| Bridges Investment Management Inc. | 0.02% | Add +130.2% | 25,793 | $1.3M |
| Envestnet Asset Management Inc. | 0.00% | Add +16.6% | 25,063 | $1.2M |
| Schonfeld Strategic Advisors LLC | 0.01% | Add +78.1% | 24,622 | $1.2M |
| Chase Investment Counsel Corp. | 0.44% | Add +60.0% | 24,000 | $1.2M |
| Franklin Resources Inc. | 0.00% | Add +1.6% | 23,626 | $1.2M |
| Citadel Advisors | 0.00% | Reduce -83.2% | 22,093 | $1.1M |
| Andra AP-fonden | 0.02% | New | 19,990 | $993K |
| Aquatic Capital Management LLC | 0.03% | Add +54.4% | 19,986 | $993K |
| Raymond James Financial Inc. | 0.00% | Add +251.1% | 19,971 | $992K |
| Nebula Research & Development LLC | 0.09% | Add +146.7% | 19,767 | $982K |
| Penbrook Management LLC | 0.74% | Add +0.4% | 19,640 | $976K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +4.6% | 19,396 | $963K |
| Victory Capital Management Inc. | 0.00% | Add +9.3% | 19,163 | $952K |
"% of holder's portfolio" is ACLS's weight in each manager's 13F, not the share of Axcelis Technologies Inc. the manager owns.