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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; 441 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
441
+67 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
113
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.

Institutional holdersQ2 2026: 441 institutions
Q1 2021: 192 institutionsQ2 2021: 188 institutionsQ3 2021: 204 institutionsQ4 2021: 254 institutionsQ1 2022: 290 institutionsQ2 2022: 277 institutionsQ3 2022: 287 institutionsQ4 2022: 327 institutionsQ1 2023: 379 institutionsQ2 2023: 406 institutionsQ3 2023: 421 institutionsQ4 2023: 421 institutionsQ1 2024: 384 institutionsQ2 2024: 392 institutionsQ3 2024: 369 institutionsQ4 2024: 325 institutionsQ1 2025: 307 institutionsQ2 2025: 330 institutionsQ3 2025: 362 institutionsQ4 2025: 373 institutionsQ1 2026: 380 institutionsQ2 2026: 441 institutions
Value heldQ2 2026: $5.85B
Q1 2021: $1.20BQ2 2021: $1.17BQ3 2021: $1.37BQ4 2021: $2.05BQ1 2022: $2.05BQ2 2022: $1.52BQ3 2022: $1.72BQ4 2022: $2.31BQ1 2023: $3.86BQ2 2023: $5.41BQ3 2023: $4.85BQ4 2023: $3.81BQ1 2024: $3.37BQ2 2024: $4.35BQ3 2024: $3.17BQ4 2024: $2.16BQ1 2025: $1.54BQ2 2025: $2.20BQ3 2025: $2.96BQ4 2025: $2.52BQ1 2026: $3.03BQ2 2026: $5.85B
Institutions holding ACLS and their total value by quarter
QuarterHoldersValue
Q2 2026441$5.85B
Q1 2026380$3.03B
Q4 2025373$2.52B
Q3 2025362$2.96B
Q2 2025330$2.20B
Q1 2025307$1.54B
Q4 2024325$2.16B
Q3 2024369$3.17B
Q2 2024392$4.35B
Q1 2024384$3.37B
Q4 2023421$3.81B
Q3 2023421$4.85B
Q2 2023406$5.41B
Q1 2023379$3.86B
Q4 2022327$2.31B
Q3 2022287$1.72B
Q2 2022277$1.52B
Q1 2022290$2.05B
Q4 2021254$2.05B
Q3 2021204$1.37B
Q2 2021188$1.17B
Q1 2021192$1.20B

Institutions, Q2 2026

Shares, value and share of portfolio for each institution holding Axcelis Technologies Inc; share changes are against Q1 2026.

Institutions holding ACLS in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Legacy Capital Group California, Inc.2,435$461.3K0.14%+2,435New
AE Wealth Management LLC2,457$465.5K0.00%−310−11.2%Reduced
Commonwealth Equity Services, LLC2,477$469.3K0.00%−156−5.9%Reduced
Cresset Asset Management, LLC2,482$470.2K0.00%00.0%Unchanged
Jones Financial Companies LLLP2,715$470.3K0.00%−325−10.7%Reduced
The PNC Financial Services Group, Inc.2,484$470.6K0.00%+316+14.6%Added
Cornerstone Investment Partners, LLC2,485$470.8K0.02%−120−4.6%Reduced
Blackstone Group Inc.2,537$480.6K0.00%+2,537New
Mitsubishi UFJ Trust & Banking Corp2,566$486.1K0.00%+2,566New
Callan Family Office, LLC2,568$486.5K0.01%+20+0.8%Added
Abel Hall, LLC2,622$496.7K0.09%+5+0.2%Added
Maverick Capital LtdSuperinvestorMaverick Capital2,630$498.3K0.00%+2,630New
Wealth Enhancement Advisory Services, LLC5,583$503.4K0.00%+116+2.1%Added
Everence Capital Management Inc2,766$524.0K0.03%00.0%Unchanged
Pinnacle Wealth Planning Services, Inc.2,821$534.4K0.05%−53−1.8%Reduced
Net Worth Advisory Group2,847$539.3K0.14%−181−6.0%Reduced
Ameritas Investment Partners, Inc.2,848$539.6K0.01%+327+13.0%Added
GAMMA Investing LLC2,887$546.9K0.02%−38−1.3%Reduced
Tower Research Capital LLC (TRC)2,930$555.1K0.01%+196+7.2%Added
Point72 Asset Management, L.P.3,000$568.4K0.00%+750+33.3%Added
Teacher Retirement System of Texas3,010$570.2K0.00%+3,010New
Xponance, Inc.3,095$586.3K0.00%+155+5.3%Added
Fox Run Management, L.L.C.3,102$587.7K0.10%+3,102New
CSS LLC3,131$593.2K0.03%+3,131New
Neuberger Berman Group LLC3,211$608.3K0.00%+267+9.1%Added
Bank of Montreal3,279$621.2K0.00%−746−18.5%Reduced
Universal- Beteiligungs- und Servicegesellschaft mbH3,292$623.7K0.00%−4,891−59.8%Reduced
Essex Investment Management Co LLC3,350$634.7K0.08%00.0%Unchanged
James Investment Research Inc3,408$645.6K0.07%00.0%Unchanged
Two Sigma Securities, LLC3,412$646.4K0.06%+3,412New
Public Employees Retirement Association of Colorado3,457$655.0K0.00%00.0%Unchanged
Mutual of America Capital Management LLC3,520$666.9K0.01%+7+0.2%Added
Wealth Effects LLC3,561$674.6K0.18%−10−0.3%Reduced
SG Americas Securities, LLC3,649$691.0K0.00%+274+8.1%Added
Atria Investments LLC3,666$694.5K0.01%−240−6.1%Reduced
Royal Bank of Canada3,719$703.0K0.00%−6,074−62.0%Reduced
Central Pacific Bank - Trust Division3,765$713.3K0.07%+3,765New
Toroso Investments, LLC3,771$714.4K0.00%+1,187+45.9%Added
Dynamic Technology Lab Private Ltd3,840$727.0K0.16%+3,840New
Aquatic Capital Management LLC3,840$727.5K0.02%+3,840New
Linden Thomas Advisory Services, LLC3,981$754.2K0.06%+48+1.2%Added
Firsthand Capital Management, Inc.4,000$757.8K1.21%00.0%Unchanged
F/M Investments LLC4,009$759.5K0.04%+4,009New
North Star Investment Management Corp.4,100$776.7K0.04%−3,292−44.5%Reduced
Lido Advisors, LLC4,163$788.8K0.00%−96−2.3%Reduced
Bokf, NA4,166$789.2K0.01%−2,055−33.0%Reduced
Twin Tree Management, LP4,209$797.4K0.12%+4,209New
Goldstream Capital Management Ltd4,341$822.4K0.98%+4,341New
Calamos Advisors LLC4,387$831.1K0.00%+4,387New
Maryland State Retirement & Pension System4,490$850.6K0.01%−27−0.6%Reduced
Leavell Investment Management, Inc.4,491$850.8K0.03%+370+9.0%Added
Moors & Cabot, Inc.4,500$852.5K0.03%+300+7.1%Added
Morningstar Investment Management LLC9,179$854.4K0.05%00.0%Unchanged
Pictet Asset Management Holding SA4,566$865.0K0.00%−315−6.5%Reduced
MML Investors Services, LLC4,582$868.1K0.00%−2,308−33.5%Reduced
Exit Wealth Advisors, LLC.4,604$872.2K0.40%+4,604New
Advisor Group Holdings, Inc.4,699$890.1K0.00%+1,003+27.1%Added
Norges Bank4,834$915.8K0.00%+4,834New
Eagle Bay Advisors LLC4,975$942.5K0.71%−1,225−19.8%Reduced
Corient IA LLC5,000$947.3K0.87%00.0%Unchanged
AnglePoint Asset Management Ltd5,012$949.5K0.62%+5,012New
Vident Advisory, LLC5,036$954.1K0.01%−8,420−62.6%Reduced
Horizon Investments, LLC5,139$973.6K0.01%+5,139New
Brevan Howard Capital Management LP5,207$986.5K0.01%+1,423+37.6%Added
Rockefeller Capital Management L.P.5,208$986.7K0.00%+4,320+486.5%Added
Massar Capital Management, LP5,222$989.3K0.34%+5,222New
XTX Topco Ltd5,269$998.2K0.01%−550−9.5%Reduced
STRS Ohio5,600$1.06M0.00%+3,100+124.0%Added
Martingale Asset Management L P5,813$1.10M0.03%−1,005−14.7%Reduced
Cetera Investment Advisers6,026$1.14M0.00%+899+17.5%Added
HighTower Advisors, LLC6,107$1.16M0.00%−1,260−17.1%Reduced
Commonwealth of Pennsylvania Public School Empls Retrmt Sys6,288$1.19M0.01%−304−4.6%Reduced
Legato Capital Management LLC6,446$1.22M0.10%+6,446New
Oppenheimer Asset Management Inc.6,522$1.24M0.01%−4,687−41.8%Reduced
Cerity Partners LLC6,533$1.24M0.00%+3,270+100.2%Added
Brookwood Investment Group LLC6,535$1.24M0.14%+16+0.2%Added
White Pine Capital LLC6,671$1.26M0.30%00.0%Unchanged
Mariner, LLC6,771$1.28M0.00%+6,771New
Western Wealth Management, LLC6,900$1.31M0.04%−36−0.5%Reduced
KLP Kapitalforvaltning AS7,000$1.33M0.00%+400+6.1%Added
Oregon Public Employees Retirement Fund7,011$1.33M0.01%−12−0.2%Reduced
Ossiam7,276$1.38M0.02%−33,424−82.1%Reduced
Summit Global Investments7,334$1.39M0.08%−664−8.3%Reduced
Merit Financial Group, LLC7,564$1.43M0.01%+1,167+18.2%Added
Vanguard Investments Australia, Ltd.7,602$1.44M0.00%00.0%Unchanged
Teachers Retirement System of the State of Kentucky7,623$1.44M0.01%−350−4.4%Reduced
Empirical Financial Services, LLC d.b.a. Empirical Wealth Management7,787$1.48M0.02%+133+1.7%Added
CI Private Wealth, LLC7,792$1.48M0.00%+2,197+39.3%Added
Steward Partners Investment Advisory, LLC8,175$1.55M0.01%+7,873+2,607.0%Added
Evolve Private Wealth, LLC8,276$1.57M0.10%+570+7.4%Added
Amalgamated Bank8,274$1.57M0.01%−575−6.5%Reduced
Yousif Capital Management, LLC8,282$1.57M0.02%+31+0.4%Added
Guggenheim Capital LLC8,402$1.59M0.01%−15−0.2%Reduced
Arizona State Retirement System8,479$1.61M0.01%+46+0.5%Added
Winton Group Ltd8,620$1.63M0.05%−5,531−39.1%Reduced
Fifth Third Bancorp8,650$1.64M0.00%−409−4.5%Reduced
Vestcor Inc8,664$1.64M0.04%+4,378+102.1%Added
Peterson Wealth Services9,191$1.74M0.38%+1,302+16.5%Added
Police & Firemen's Retirement System of New Jersey9,256$1.75M0.01%+578+6.7%Added
Handelsbanken Fonder AB9,300$1.76M0.01%+1,200+14.8%Added