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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
AdvisorNet Financial, Inc265$50.2K0.00%+10+3.9%Added
Walleye Capital LLC274$51.9K0.00%+274New
VSM Wealth Advisory, LLC275$52.1K0.01%00.0%Unchanged
EverSource Wealth Advisors, LLC277$52.5K0.00%−194−41.2%Reduced
SRS Capital Advisors, Inc.307$58.2K0.00%+307New
Kemnay Advisory Services Inc.320$60.6K0.01%+71+28.5%Added
Bullock Wealth Management Group342$61.0K0.03%00.0%Unchanged
USA Financial Formulas325$61.6K0.01%+325New
Salomon & Ludwin, LLC364$64.9K0.01%00.0%Unchanged
Bank Julius Baer & Co. Ltd, Zurich350$66.3K0.00%00.0%Unchanged
Central Trust Co409$77.5K0.00%−828−66.9%Reduced
Clear Street Markets LLC410$77.7K0.02%+172+72.3%Added
Oakworth Capital, Inc.450$80.2K0.00%00.0%Unchanged
Public Employees Retirement System of Ohio431$81.7K0.00%−42−8.9%Reduced
Massmutual Trust Co FSB475$90.0K0.00%−37−7.2%Reduced
Smartleaf Asset Management LLC519$91.4K0.00%00.0%Unchanged
US Bancorp490$92.8K0.00%+3+0.6%Added
Ancora Advisors, LLC500$94.7K0.00%00.0%Unchanged
GWM Advisors LLC581$110.1K0.00%+414+247.9%Added
Parallel Advisors, LLC668$126.6K0.00%+3+0.5%Added
Salem Investment Counselors Inc685$129.8K0.00%00.0%Unchanged
Equitec Proprietary Markets, LLC700$132.6K0.03%+700New
Allworth Financial LP811$153.6K0.00%+20+2.5%Added
Parkside Financial Bank & Trust827$156.7K0.01%−174−17.4%Reduced
Covestor Ltd833$158.0K0.09%−635−43.3%Reduced
Hantz Financial Services, Inc.934$177.0K0.00%+47+5.3%Added
State of Wyoming976$184.9K0.02%+583+148.3%Added
Versant Capital Management, Inc1,021$193.4K0.02%−56−5.2%Reduced
Signaturefd, LLC1,034$195.9K0.00%+14+1.4%Added
Farther Finance Advisors, LLC1,054$198.9K0.00%−436−29.3%Reduced
KBC Group NV1,069$203.0K0.00%00.0%Unchanged
Occidental Asset Management, LLC1,072$203.1K0.02%+1,072New
Park Avenue Securities LLC1,081$205.0K0.00%+1,081New
Nykredit A/S1,083$205.2K0.00%+1,083New
Sym Financial Corp1,087$205.9K0.02%+1,087New
GFG Capital, LLC1,087$205.9K0.06%+1,087New
Fifth Third Wealth Advisors LLC1,114$211.0K0.01%+1,114New
Empirical Asset Management, LLC1,123$212.8K0.05%+1,123New
HB Wealth Management, LLC1,124$212.9K0.00%+1,124New
Franklin Street Advisors Inc1,130$214.1K0.01%+1,130New
Evergreen Capital Management LLC1,146$217.1K0.00%+1,146New
Brinker Capital Investments, LLC1,148$217.5K0.00%+1,148New
Roberts Glore & Co Inc1,149$217.7K0.05%+1,149New
BTG Pactual Asset Management US LLC1,173$222.2K0.02%+1,173New
Nicolet Bankshares Inc1,193$226.0K0.01%+1,193New
Ausdal Financial Partners, Inc.1,227$232.5K0.01%+1,227New
Freestone Grove Partners LP1,228$232.6K0.00%−5,789−82.5%Reduced
New Age Alpha Advisors, LLC1,242$235.3K0.01%−51−3.9%Reduced
M&T Bank Corp1,294$245.4K0.00%+1,294New
Procyon Private Wealth Partners, LLC1,298$245.9K0.01%+1,298New
QSM Asset Management Ltd1,341$250.6K0.13%−50,230−97.4%Reduced
SBI Securities Co., Ltd.1,325$251.0K0.01%−38−2.8%Reduced
Perkins Coie Trust Co1,326$251.2K0.04%−1,423−51.8%Reduced
Ethic Inc.1,340$253.9K0.00%+1,340New
Northwestern Mutual Wealth Management Co1,386$262.6K0.00%−10−0.7%Reduced
RSM US Wealth Management LLC1,390$263.3K0.00%+1,390New
Jane Street Group, LLC1,392$263.7K0.00%+1,392New
Koshinski Asset Management, Inc.1,429$270.7K0.01%+1,429New
Sage Rhino Capital LLC1,433$271.5K0.04%+1,433New
DnB Asset Management AS1,438$272.4K0.00%+1,438New
Syon Capital LLC1,452$275.1K0.01%+1,452New
Skandinaviska Enskilda Banken AB (publ)1,463$277.0K0.01%−1,967−57.3%Reduced
StoryOne LLC1,476$279.6K0.13%+1,476New
Caitong International Asset Management Co., Ltd1,485$281.3K0.04%+1,468+8,635.3%Added
Simplex Trading, LLC1,522$288.3K0.01%+1,503+7,910.5%Added
Smith Shellnut Wilson LLC1,540$291.8K0.11%+1,540New
Captrust Financial Advisors1,564$296.4K0.00%+1,564New
NorthCrest Asset Manangement, LLC2,077$296.9K0.01%−288−12.2%Reduced
USS Investment Management Ltd1,600$303.4K0.00%+1,600New
Larson Financial Group LLC1,612$305.4K0.01%+875+118.7%Added
Profund Advisors LLC1,636$309.9K0.01%+1,636New
Van Diest Capital, LLC1,638$310.3K0.28%+1,638New
Savant Capital, LLC1,722$321.1K0.00%+1,722New
Nisa Investment Advisors, LLC1,703$322.6K0.00%−835−32.9%Reduced
CIBC Asset Management Inc1,703$322.6K0.00%+1,703New
Stratos Wealth Partners, LTD.1,761$333.6K0.00%−560−24.1%Reduced
Darden Wealth Group Inc1,800$341.0K0.14%−585−24.5%Reduced
Greenleaf Trust1,804$341.8K0.00%+1,804New
Ensign Peak Advisors, Inc1,816$344.0K0.00%−150−7.6%Reduced
CIBC Bancorp USA Inc.1,885$357.1K0.00%+1,885New
Equitable Holdings, Inc.1,930$365.6K0.00%+1,930New
Swiss Life Asset Management Ltd1,932$366.0K0.00%−242−11.1%Reduced
Sequoia Financial Advisors, LLC1,937$367.0K0.00%+1,937New
Crossmark Global Holdings, Inc.2,001$379.1K0.00%−329−14.1%Reduced
Odyssean, LLC2,036$385.7K0.06%+2,036New
Huntington National Bank2,059$390.1K0.00%00.0%Unchanged
Tactive Advisors, LLC2,080$394.1K0.10%+2,080New
O'Shaughnessy Asset Management, LLC2,143$406.0K0.00%−2,943−57.9%Reduced
denkapparat Operations GmbH2,168$410.7K0.13%00.0%Unchanged
TRB Wealth Management, LLC2,176$412.2K0.05%00.0%Unchanged
Capstone Capital Management Ltd2,202$417.2K0.19%+2,202New
Teza Capital Management LLC2,211$418.9K0.81%+2,211New
Kerr Financial Planning Corp2,225$421.5K0.47%+75+3.5%Added
Beacon Pointe Advisors, LLC2,231$422.7K0.00%−90−3.9%Reduced
D.A. Davidson & Co.2,300$435.7K0.00%00.0%Unchanged
Virtus ETF Advisers LLC2,332$441.8K0.17%+111+5.0%Added
Colony Group, LLC2,356$446.4K0.00%+2,356New
Empowered Funds, LLC2,372$449.4K0.00%−36,715−93.9%Reduced
Baird Financial Group, Inc.2,378$450.5K0.00%−43−1.8%Reduced
Integrated Wealth Concepts LLC2,399$454.5K0.00%−8−0.3%Reduced