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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; 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.

Institutional holdersQ2 2026: 442 institutions
Q1 2021: 193 institutionsQ2 2021: 189 institutionsQ3 2021: 205 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: 385 institutionsQ2 2024: 393 institutionsQ3 2024: 369 institutionsQ4 2024: 325 institutionsQ1 2025: 307 institutionsQ2 2025: 330 institutionsQ3 2025: 362 institutionsQ4 2025: 373 institutionsQ1 2026: 380 institutionsQ2 2026: 442 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 2026442$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 2024393$4.35B
Q1 2024385$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 2021205$1.37B
Q2 2021189$1.17B
Q1 2021193$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
Linden Thomas Advisory Services, LLC3,981$754.2K0.06%+48+1.2%Added
Aquatic Capital Management LLC3,840$727.5K0.02%+3,840New
Dynamic Technology Lab Private Ltd3,840$727.0K0.16%+3,840New
Toroso Investments, LLC3,771$714.4K0.00%+1,187+45.9%Added
Central Pacific Bank - Trust Division3,765$713.3K0.07%+3,765New
Royal Bank of Canada3,719$703.0K0.00%−6,074−62.0%Reduced
Atria Investments LLC3,666$694.5K0.01%−240−6.1%Reduced
SG Americas Securities, LLC3,649$691.0K0.00%+274+8.1%Added
Wealth Effects LLC3,561$674.6K0.18%−10−0.3%Reduced
Mutual of America Capital Management LLC3,520$666.9K0.01%+7+0.2%Added
Public Employees Retirement Association of Colorado3,457$655.0K0.00%00.0%Unchanged
Two Sigma Securities, LLC3,412$646.4K0.06%+3,412New
James Investment Research Inc3,408$645.6K0.07%00.0%Unchanged
Essex Investment Management Co LLC3,350$634.7K0.08%00.0%Unchanged
Universal- Beteiligungs- und Servicegesellschaft mbH3,292$623.7K0.00%−4,891−59.8%Reduced
Bank of Montreal3,279$621.2K0.00%−746−18.5%Reduced
Neuberger Berman Group LLC3,211$608.3K0.00%+267+9.1%Added
CSS LLC3,131$593.2K0.03%+3,131New
Fox Run Management, L.L.C.3,102$587.7K0.10%+3,102New
Xponance, Inc.3,095$586.3K0.00%+155+5.3%Added
Teacher Retirement System of Texas3,010$570.2K0.00%+3,010New
Point72 Asset Management, L.P.3,000$568.4K0.00%+750+33.3%Added
Tower Research Capital LLC (TRC)2,930$555.1K0.01%+196+7.2%Added
GAMMA Investing LLC2,887$546.9K0.02%−38−1.3%Reduced
Ameritas Investment Partners, Inc.2,848$539.6K0.01%+327+13.0%Added
Net Worth Advisory Group2,847$539.3K0.14%−181−6.0%Reduced
Pinnacle Wealth Planning Services, Inc.2,821$534.4K0.05%−53−1.8%Reduced
Everence Capital Management Inc2,766$524.0K0.03%00.0%Unchanged
Wealth Enhancement Advisory Services, LLC5,583$503.4K0.00%+116+2.1%Added
Maverick Capital LtdSuperinvestorMaverick Capital2,630$498.3K0.00%+2,630New
Abel Hall, LLC2,622$496.7K0.09%+5+0.2%Added
Callan Family Office, LLC2,568$486.5K0.01%+20+0.8%Added
Mitsubishi UFJ Trust & Banking Corp2,566$486.1K0.00%+2,566New
Blackstone Group Inc.2,537$480.6K0.00%+2,537New
Cornerstone Investment Partners, LLC2,485$470.8K0.02%−120−4.6%Reduced
The PNC Financial Services Group, Inc.2,484$470.6K0.00%+316+14.6%Added
Jones Financial Companies LLLP2,715$470.3K0.00%−325−10.7%Reduced
Cresset Asset Management, LLC2,482$470.2K0.00%00.0%Unchanged
Commonwealth Equity Services, LLC2,477$469.3K0.00%−156−5.9%Reduced
AE Wealth Management LLC2,457$465.5K0.00%−310−11.2%Reduced
Legacy Capital Group California, Inc.2,435$461.3K0.14%+2,435New
Integrated Wealth Concepts LLC2,399$454.5K0.00%−8−0.3%Reduced
Baird Financial Group, Inc.2,378$450.5K0.00%−43−1.8%Reduced
Empowered Funds, LLC2,372$449.4K0.00%−36,715−93.9%Reduced
Colony Group, LLC2,356$446.4K0.00%+2,356New
Virtus ETF Advisers LLC2,332$441.8K0.17%+111+5.0%Added
D.A. Davidson & Co.2,300$435.7K0.00%00.0%Unchanged
Beacon Pointe Advisors, LLC2,231$422.7K0.00%−90−3.9%Reduced
Kerr Financial Planning Corp2,225$421.5K0.47%+75+3.5%Added
Teza Capital Management LLC2,211$418.9K0.81%+2,211New
Capstone Capital Management Ltd2,202$417.2K0.19%+2,202New
TRB Wealth Management, LLC2,176$412.2K0.05%00.0%Unchanged
denkapparat Operations GmbH2,168$410.7K0.13%00.0%Unchanged
O'Shaughnessy Asset Management, LLC2,143$406.0K0.00%−2,943−57.9%Reduced
Tactive Advisors, LLC2,080$394.1K0.10%+2,080New
Huntington National Bank2,060$390.1K0.00%00.0%Unchanged
Odyssean, LLC2,036$385.7K0.06%+2,036New
Crossmark Global Holdings, Inc.2,001$379.1K0.00%−329−14.1%Reduced
Sequoia Financial Advisors, LLC1,937$367.0K0.00%+1,937New
Swiss Life Asset Management Ltd1,932$366.0K0.00%−242−11.1%Reduced
Equitable Holdings, Inc.1,930$365.6K0.00%+1,930New
CIBC Bancorp USA Inc.1,885$357.1K0.00%+1,885New
Ensign Peak Advisors, Inc1,816$344.0K0.00%−150−7.6%Reduced
Greenleaf Trust1,804$341.8K0.00%+1,804New
Darden Wealth Group Inc1,800$341.0K0.14%−585−24.5%Reduced
Stratos Wealth Partners, LTD.1,761$333.6K0.00%−560−24.1%Reduced
Nisa Investment Advisors, LLC1,703$322.6K0.00%−835−32.9%Reduced
CIBC Asset Management Inc1,703$322.6K0.00%+1,703New
Savant Capital, LLC1,722$321.1K0.00%+1,722New
Van Diest Capital, LLC1,638$310.3K0.28%+1,638New
Profund Advisors LLC1,636$309.9K0.01%+1,636New
Larson Financial Group LLC1,612$305.4K0.01%+875+118.7%Added
USS Investment Management Ltd1,600$303.4K0.00%+1,600New
NorthCrest Asset Manangement, LLC2,077$296.9K0.01%−288−12.2%Reduced
Captrust Financial Advisors1,564$296.4K0.00%+1,564New
Smith Shellnut Wilson LLC1,540$291.8K0.11%+1,540New
Simplex Trading, LLC1,522$288.3K0.01%+1,503+7,910.5%Added
Caitong International Asset Management Co., Ltd1,485$281.3K0.04%+1,468+8,635.3%Added
StoryOne LLC1,476$279.6K0.13%+1,476New
Skandinaviska Enskilda Banken AB (publ)1,463$277.0K0.01%−1,967−57.3%Reduced
Syon Capital LLC1,452$275.1K0.01%+1,452New
DnB Asset Management AS1,438$272.4K0.00%+1,438New
Sage Rhino Capital LLC1,433$271.5K0.04%+1,433New
Koshinski Asset Management, Inc.1,429$270.7K0.01%+1,429New
Jane Street Group, LLC1,392$263.7K0.00%+1,392New
RSM US Wealth Management LLC1,390$263.3K0.00%+1,390New
Northwestern Mutual Wealth Management Co1,386$262.6K0.00%−10−0.7%Reduced
Ethic Inc.1,340$253.9K0.00%+1,340New
Perkins Coie Trust Co1,326$251.2K0.04%−1,423−51.8%Reduced
SBI Securities Co., Ltd.1,325$251.0K0.01%−38−2.8%Reduced
QSM Asset Management Ltd1,341$250.6K0.13%−50,230−97.4%Reduced
Procyon Private Wealth Partners, LLC1,298$245.9K0.01%+1,298New
M&T Bank Corp1,294$245.4K0.00%+1,294New
New Age Alpha Advisors, LLC1,242$235.3K0.01%−51−3.9%Reduced
Freestone Grove Partners LP1,228$232.6K0.00%−5,789−82.5%Reduced
Ausdal Financial Partners, Inc.1,227$232.5K0.01%+1,227New
Nicolet Bankshares Inc1,193$226.0K0.01%+1,193New
BTG Pactual Asset Management US LLC1,173$222.2K0.02%+1,173New
Roberts Glore & Co Inc1,149$217.7K0.05%+1,149New
Brinker Capital Investments, LLC1,148$217.5K0.00%+1,148New