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, Q2 2026
Institutional positions in Axcelis Technologies Inc as of Jun 30, 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
- 442
- +68 vs. Q1 2026
- Shares held
- 30.9M
- −1.60M (−4.9%) vs. Q1 2026
- Total value
- $5.85B
- +$2.82B (+93.2%) vs. Q1 2026
- New holders
- 114
- 117 more added
- Sold out
- 46
- 146 more reduced
6 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding Axcelis Technologies Inc; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 5,029,462 | $952.8M | 0.01% | +92,688+1.9% | Added |
| FMR LLC | 4,125,902 | $781.7M | 0.03% | +1,694,781+69.7% | Added |
| Vanguard Portfolio Management LLC | 2,478,878 | $469.6M | 0.02% | −9,415−0.4% | Reduced |
| Vanguard Capital Management LLC | 1,386,518 | $262.7M | 0.01% | +3,748+0.3% | Added |
| State Street Corp | 1,231,109 | $233.2M | 0.01% | +42,064+3.5% | Added |
| Victory Capital Management Inc | 1,134,007 | $214.8M | 0.12% | −144,998−11.3% | Reduced |
| Reinhart Partners, Inc. | 928,660 | $175.9M | 4.02% | −729,085−44.0% | Reduced |
| Geode Capital Management, LLC | 833,607 | $158.0M | 0.01% | +22,343+2.8% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 803,151 | $152.2M | 0.15% | −202,877−20.2% | Reduced |
| Dimensional Fund Advisors LP | 709,266 | $134.3M | 0.02% | −134,831−16.0% | Reduced |
| Balyasny Asset Management LLC | 616,196 | $116.7M | 0.21% | −748,344−54.8% | Reduced |
| Primecap Management Co | 610,451 | $115.6M | 0.07% | −48,201−7.3% | Reduced |
| Invesco Ltd. | 527,724 | $100.0M | 0.01% | +362,649+219.7% | Added |
| Charles Schwab Investment Management Inc | 416,230 | $78.9M | 0.01% | −29,539−6.6% | Reduced |
| Price T Rowe Associates Inc | 394,455 | $74.7M | 0.01% | +32,253+8.9% | Added |
| Barrow Hanley Mewhinney & Strauss LLC | 392,240 | $74.3M | 0.23% | +392,183+688,040.4% | Added |
| Manufacturers Life Insurance Company, The | 383,760 | $72.7M | 0.06% | −107,985−22.0% | Reduced |
| Northern Trust Corp | 382,027 | $72.4M | 0.01% | −34,676−8.3% | Reduced |
| American Century Companies Inc | 369,879 | $70.1M | 0.03% | −582,035−61.1% | Reduced |
| Morgan Stanley | 366,077 | $69.4M | 0.00% | −215,559−37.1% | Reduced |
| Boston Trust Walden Corp | 359,256 | $68.1M | 0.52% | −19,269−5.1% | Reduced |
| Emerald Advisers, LLC | 330,469 | $62.6M | 1.47% | +234,231+243.4% | Added |
| UBS Group AG | 320,891 | $60.8M | 0.01% | −56,346−14.9% | Reduced |
| Boston Partners | 303,929 | $55.7M | 0.05% | −36,346−10.7% | Reduced |
| Goldman Sachs Group Inc | 235,253 | $44.6M | 0.00% | −262,371−52.7% | Reduced |
| Vanguard Fiduciary Trust Co | 220,809 | $41.8M | 0.01% | +20,344+10.1% | Added |
| Emerald Mutual Fund Advisers Trust | 219,443 | $41.6M | 1.46% | +172,031+362.8% | Added |
| Principal Financial Group Inc | 218,113 | $41.3M | 0.02% | +7,911+3.8% | Added |
| Allspring Global Investments Holdings, LLC | 219,357 | $39.1M | 0.06% | −39,179−15.2% | Reduced |
| Bank of New York Mellon Corp | 204,964 | $38.8M | 0.01% | +5,292+2.7% | Added |
| Citigroup Inc | 184,124 | $34.9M | 0.02% | +159,479+647.1% | Added |
| Millennium Management LLC | 139,242 | $26.4M | 0.02% | +126,710+1,011.1% | Added |
| Grantham, Mayo, Van Otterloo & Co. LLC | 135,580 | $25.7M | 0.06% | −199,206−59.5% | Reduced |
| Alpine Associates Management Inc. | 134,905 | $25.6M | 1.60% | +134,905 | New |
| Sagefield Capital LP | 133,770 | $25.3M | 1.88% | +51,532+62.7% | Added |
| D. E. Shaw & Co., Inc. | 133,044 | $25.2M | 0.02% | −411,377−75.6% | Reduced |
| Federated Hermes, Inc. | 132,331 | $25.1M | 0.04% | −76,867−36.7% | Reduced |
| First Trust Advisors LP | 123,278 | $23.4M | 0.01% | −14,501−10.5% | Reduced |
| Alberta Investment Management Corp | 107,250 | $20.3M | 0.12% | +71,500+200.0% | Added |
| Public Sector Pension Investment Board | 105,601 | $20.0M | 0.05% | −4,190−3.8% | Reduced |
| Weiss Asset Management LP | 103,258 | $19.6M | 0.22% | +103,258 | New |
| Kennedy Capital Management, Inc. | 95,038 | $18.0M | 0.32% | −82,978−46.6% | Reduced |
| Bessemer Group Inc | 95,004 | $18.0M | 0.02% | +57,003+150.0% | Added |
| Old West Investment Management, LLC | 90,334 | $17.1M | 1.81% | +47,853+112.6% | Added |
| Bank of America Corp | 90,147 | $17.1M | 0.00% | −20,852−18.8% | Reduced |
| BNP Paribas Arbitrage, SA | 87,705 | $16.6M | 0.01% | −56,973−39.4% | Reduced |
| Creative Planning | 83,477 | $15.8M | 0.01% | +5,765+7.4% | Added |
| Nuveen, LLC | 81,142 | $15.4M | 0.00% | +9,757+13.7% | Added |
| Rhumbline Advisers | 76,372 | $14.5M | 0.01% | −10,935−12.5% | Reduced |
| First Eagle Investment Management, LLC | 71,925 | $13.6M | 0.02% | −28,626−28.5% | Reduced |
| Legal & General Group Plc | 70,350 | $13.3M | 0.00% | −1,559−2.2% | Reduced |
| Wellington Management Group LLP | 68,987 | $13.1M | 0.00% | +68,987 | New |
| Deutsche Bank AG | 67,840 | $12.9M | 0.00% | +38,981+135.1% | Added |
| UBS Asset Management Americas Inc | 66,069 | $12.5M | 0.00% | +1,519+2.4% | Added |
| Royce & Associates LP | 65,700 | $12.4M | 0.10% | −59,580−47.6% | Reduced |
| Swiss National Bank | 61,600 | $11.7M | 0.01% | +400+0.7% | Added |
| Ameriprise Financial Inc | 52,552 | $9.96M | 0.00% | −26,143−33.2% | Reduced |
| Adage Capital Partners GP, L.L.C. | 50,777 | $9.62M | 0.01% | +43,277+577.0% | Added |
| Two Sigma Investments, LP | 48,437 | $9.18M | 0.01% | −149,129−75.5% | Reduced |
| Citadel Advisors LLC | 46,239 | $8.76M | 0.01% | +41,734+926.4% | Added |
| JPMorgan Chase & Co | 44,011 | $8.00M | 0.00% | −178,703−80.2% | Reduced |
| Emerald Investment Advisers, LLC | 41,615 | $7.88M | 0.52% | +1,851+4.7% | Added |
| Virtu Financial LLC | 40,766 | $7.72M | 0.24% | +26,069+177.4% | Added |
| Wells Fargo & Company | 40,607 | $7.69M | 0.00% | −11,094−21.5% | Reduced |
| Globeflex Capital L P | 39,162 | $7.42M | 0.95% | −5,293−11.9% | Reduced |
| Voleon Capital Management LP | 39,127 | $7.41M | 0.14% | +3,906+11.1% | Added |
| LPL Financial LLC | 38,900 | $7.37M | 0.00% | +16,403+72.9% | Added |
| Polar Asset Management Partners Inc. | 38,728 | $7.34M | 0.13% | +38,728 | New |
| Raymond James Financial Inc | 37,959 | $7.19M | 0.00% | +35,409+1,388.6% | Added |
| Envestnet Asset Management Inc | 35,707 | $6.76M | 0.00% | +3,926+12.4% | Added |
| AQR Capital Management LLC | 35,538 | $6.73M | 0.00% | −4,477−11.2% | Reduced |
| Needham Investment Management LLC | 35,500 | $6.73M | 0.20% | −7,000−16.5% | Reduced |
| California State Teachers Retirement System | 35,447 | $6.72M | 0.01% | −973−2.7% | Reduced |
| EAM Investors, LLC | 35,066 | $6.64M | 0.59% | +35,066 | New |
| Connor, Clark & Lunn Investment Management Ltd. | 34,043 | $6.45M | 0.01% | +18,365+117.1% | Added |
| SEI Investments Co | 33,749 | $6.39M | 0.01% | −11,286−25.1% | Reduced |
| Amundi | 33,609 | $6.37M | 0.00% | −7,018−17.3% | Reduced |
| Prudential Financial Inc | 31,862 | $6.04M | 0.01% | +485+1.5% | Added |
| Jupiter Topco LLC | 31,821 | $6.03M | 0.00% | +31,821 | New |
| Mercer Global Advisors Inc | 31,663 | $6.00M | 0.01% | −16,313−34.0% | Reduced |
| Great Lakes Advisors, LLC | 31,556 | $5.98M | 0.05% | −16,038−33.7% | Reduced |
| Verition Fund Management LLC | 30,042 | $5.69M | 0.04% | +30,042 | New |
| Vanguard Asset Management, Ltd | 29,754 | $5.64M | 0.00% | +2,555+9.4% | Added |
| Russell Investments Group, Ltd. | 28,274 | $5.36M | 0.00% | +20,484+263.0% | Added |
| Susquehanna International Group, LLP | 26,829 | $5.08M | 0.00% | +14,053+110.0% | Added |
| State of Wisconsin Investment Board | 26,472 | $5.02M | 0.01% | −14,735−35.8% | Reduced |
| Harbor Capital Advisors, Inc. | 25,961 | $4.92M | 0.34% | −15,870−37.9% | Reduced |
| LSV Asset Management | 24,600 | $4.66M | 0.01% | −404,900−94.3% | Reduced |
| Great West Life Assurance Co | 24,513 | $4.64M | 0.01% | −641−2.5% | Reduced |
| Paradigm Capital Management Inc | 24,000 | $4.55M | 0.12% | 00.0% | Unchanged |
| Isthmus Partners, LLC | 23,594 | $4.47M | 0.43% | −15,763−40.1% | Reduced |
| Qube Research & Technologies Ltd | 23,094 | $4.38M | 0.00% | +23,094 | New |
| Marshall Wace, LLP | 22,248 | $4.21M | 0.00% | +22,248 | New |
| Bridges Investment Management Inc | 21,558 | $4.08M | 0.05% | −17,079−44.2% | Reduced |
| Alliancebernstein L.P. | 43,657 | $4.06M | 0.00% | +9,168+26.6% | Added |
| Thrivent Financial for Lutherans | 20,182 | $3.82M | 0.01% | −309−1.5% | Reduced |
| Abn Amro Investment Solutions | 20,103 | $3.81M | 0.03% | −4,547−18.4% | Reduced |
| MetLife Investment Management | 18,260 | $3.46M | 0.02% | +1,025+5.9% | Added |
| Stifel Financial Corp | 18,080 | $3.43M | 0.00% | −4,504−19.9% | Reduced |
| Los Angeles Capital Management LLC | 17,962 | $3.40M | 0.01% | +17,732+7,709.6% | Added |