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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 $5.87B in total; Maverick Capital is the only superinvestor holding it.

13F holders, Q3 2024

Institutional positions in Axcelis Technologies Inc as of Sep 30, 2024. 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
369
−20 vs. Q2 2024
Shares held
30.5M
+5.44M (+21.8%) vs. Q2 2024
Total value
$3.19B
−$364.0M (−10.3%) vs. Q2 2024
New holders
57
130 more added
Sold out
77
126 more reduced

3 institutions that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2024: 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 holdersQ3 2024: 369 institutions
Q1 2021: 192 institutionsQ2 2021: 188 institutionsQ3 2021: 204 institutionsQ4 2021: 254 institutionsQ1 2022: 290 institutionsQ2 2022: 277 institutionsQ3 2022: 287 institutionsQ4 2022: 328 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 heldQ3 2024: $3.19B
Q1 2021: $1.20BQ2 2021: $1.17BQ3 2021: $1.37BQ4 2021: $2.06BQ1 2022: $2.05BQ2 2022: $1.52BQ3 2022: $1.72BQ4 2022: $2.32BQ1 2023: $4.00BQ2 2023: $5.41BQ3 2023: $4.85BQ4 2023: $3.95BQ1 2024: $3.57BQ2 2024: $4.38BQ3 2024: $3.19BQ4 2024: $2.16BQ1 2025: $1.54BQ2 2025: $2.22BQ3 2025: $2.98BQ4 2025: $2.52BQ1 2026: $3.03BQ2 2026: $5.87B
Institutions holding ACLS and their total value by quarter
QuarterHoldersValue
Q2 2026441$5.87B
Q1 2026380$3.03B
Q4 2025373$2.52B
Q3 2025362$2.98B
Q2 2025330$2.22B
Q1 2025307$1.54B
Q4 2024325$2.16B
Q3 2024369$3.19B
Q2 2024392$4.38B
Q1 2024384$3.57B
Q4 2023421$3.95B
Q3 2023421$4.85B
Q2 2023406$5.41B
Q1 2023379$4.00B
Q4 2022328$2.32B
Q3 2022287$1.72B
Q2 2022277$1.52B
Q1 2022290$2.05B
Q4 2021254$2.06B
Q3 2021204$1.37B
Q2 2021188$1.17B
Q1 2021192$1.20B

Institutions, Q3 2024

Shares, value and share of portfolio for each institution holding Axcelis Technologies Inc; share changes are against Q2 2024.

Institutions holding ACLS in Q3 2024
InstitutionSharesValue% of portfolioChange in sharesAction
BlackRock, Inc.5,338,593$559.8M0.01%+5,338,593New
Vanguard Group Inc4,289,931$449.8M0.01%−92,801−2.1%Reduced
State Street Corp1,233,282$129.3M0.01%+18,101+1.5%Added
Primecap Management Co974,436$102.2M0.08%−15,360−1.6%Reduced
Geode Capital Management, LLC874,516$91.7M0.01%+28,141+3.3%Added
Senvest Management, LLC770,490$80.8M2.82%−28,387−3.6%Reduced
American Century Companies Inc769,418$80.7M0.05%+384,237+99.8%Added
Reinhart Partners, Inc.687,608$72.1M2.74%+268,560+64.1%Added
Morgan Stanley675,922$70.9M0.01%+38,286+6.0%Added
Dimensional Fund Advisors LP652,954$68.5M0.02%−5,158−0.8%Reduced
Ameriprise Financial Inc607,818$63.7M0.02%−4,141−0.7%Reduced
Goldman Sachs Group Inc561,877$58.9M0.01%−140,736−20.0%Reduced
Price T Rowe Associates Inc526,856$55.2M0.01%−4,274−0.8%Reduced
BNP PARIBAS ASSET MANAGEMENT Holding S.A.510,894$53.6M0.13%+55,048+12.1%Added
Boston Trust Walden Corp506,427$53.1M0.37%+506,427New
Grantham, Mayo, Van Otterloo & Co. LLC495,971$52.0M0.16%+214,987+76.5%Added
Paradigm Capital Management Inc476,900$50.0M2.22%+127,700+36.6%Added
Norges Bank440,718$46.2M0.01%−23,461−5.1%Reduced
Northern Trust Corp410,895$43.1M0.01%−650.0%Reduced
Amundi424,995$41.9M0.02%+296,897+231.8%Added
JPMorgan Chase & Co357,846$37.5M0.00%−99,842−21.8%Reduced
Charles Schwab Investment Management Inc347,023$36.4M0.01%−110,163−24.1%Reduced
Nuveen Asset Management, LLC307,323$32.2M0.01%−433−0.1%Reduced
Royce & Associates LP273,671$28.7M0.26%+167,235+157.1%Added
Bank of New York Mellon Corp264,796$27.8M0.01%−30,948−10.5%Reduced
FMR LLC263,332$27.6M0.00%+89,453+51.4%Added
Jackson Square Partners, LLC243,347$25.5M2.20%−119,596−33.0%Reduced
Boston Partners245,592$25.2M0.03%+810.0%Added
Massachusetts Financial Services Co231,868$24.3M0.01%−6,353−2.7%Reduced
Wellington Management Group LLP203,513$21.3M0.00%−53,386−20.8%Reduced
Marshall Wace, LLP185,672$19.5M0.03%+165,021+799.1%Added
Principal Financial Group Inc181,083$19.0M0.01%−30,476−14.4%Reduced
Granite Investment Partners, LLC176,174$18.5M0.79%−19,347−9.9%Reduced
Jane Street Group, LLC166,920$17.5M0.03%+48,532+41.0%Added
Bank of America Corp152,725$16.0M0.00%−58,914−27.8%Reduced
Invesco Ltd.136,835$14.3M0.00%−189,891−58.1%Reduced
UBS Group AG135,744$14.2M0.00%−23,742−14.9%Reduced
Weiss Asset Management LP132,322$13.9M0.35%+132,322New
HRT Financial LP126,021$13.2M0.07%+126,021New
Voya Investment Management LLC124,546$13.1M0.01%−77,226−38.3%Reduced
Oberweis Asset Management Inc118,779$12.5M0.64%+26,980+29.4%Added
Millennium Management LLC116,696$12.2M0.01%−97,381−45.5%Reduced
Neuberger Berman Group LLC112,186$11.8M0.01%+21,777+24.1%Added
Allianz Asset Management GmbH110,049$11.5M0.02%−13,957−11.3%Reduced
Legal & General Group Plc107,290$11.2M0.00%+550+0.5%Added
First Trust Advisors LP106,892$11.2M0.01%+36,742+52.4%Added
Neumeier Poma Investment Counsel LLC104,515$11.0M1.04%−67,890−39.4%Reduced
SEI Investments Co104,288$10.9M0.01%+29,597+39.6%Added
Man Group plc101,655$10.7M0.03%−92,646−47.7%Reduced
ExodusPoint Capital Management, LP95,475$10.0M0.10%+56,527+145.1%Added
Rhumbline Advisers90,365$9.47M0.01%−3,414−3.6%Reduced
Citigroup Inc88,727$9.30M0.01%−126,540−58.8%Reduced
Kennedy Capital Management, Inc.86,914$9.11M0.20%−18,114−17.2%Reduced
Pier Capital, LLC82,990$8.70M1.23%+41,782+101.4%Added
Cerity Partners LLC81,177$8.51M0.02%+915+1.1%Added
Citadel Advisors LLC79,144$8.30M0.01%−81,992−50.9%Reduced
UBS Asset Management Americas Inc75,299$7.90M0.00%−47,198−38.5%Reduced
Squarepoint Ops LLC74,469$7.81M0.03%+74,469New
Connor, Clark & Lunn Investment Management Ltd.72,021$7.55M0.04%−55,441−43.5%Reduced
Public Sector Pension Investment Board69,187$7.25M0.04%−2,400−3.4%Reduced
Barclays PLC68,111$7.14M0.00%−93,416−57.8%Reduced
Royal Bank of Canada66,516$6.97M0.00%+56,276+549.6%Added
Kornitzer Capital Management Inc64,080$6.72M0.12%+15,810+32.8%Added
Swiss National Bank63,500$6.66M0.00%−700−1.1%Reduced
Alliancebernstein L.P.62,854$6.59M0.00%−44−0.1%Reduced
California Public Employees Retirement System61,175$6.41M0.00%+270+0.4%Added
Harbor Capital Advisors, Inc.60,328$6.33M0.27%+42,779+243.8%Added
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.58,234$6.11M0.01%+1,100+1.9%Added
Assenagon Asset Management S.A.54,555$5.72M0.01%+30,609+127.8%Added
Bridge City Capital, LLC45,644$4.79M1.32%+5,740+14.4%Added
Capital Fund Management S.A.45,523$4.77M0.05%+31,500+224.6%Added
State of Wisconsin Investment Board45,182$4.74M0.01%−14,793−24.7%Reduced
LPL Financial LLC44,682$4.68M0.00%+8,454+23.3%Added
Prudential Financial Inc43,801$4.59M0.01%−4,957−10.2%Reduced
Trexquant Investment LP43,675$4.58M0.06%−79,348−64.5%Reduced
HSBC Holdings PLC43,037$4.53M0.00%+36,943+606.2%Added
Voloridge Investment Management, LLC42,132$4.42M0.02%−94,910−69.3%Reduced
Holocene Advisors, LP41,544$4.36M0.02%+6,285+17.8%Added
Stifel Financial Corp40,937$4.29M0.00%+2,492+6.5%Added
Renaissance Technologies LLC39,799$4.17M0.01%+39,799New
Great West Life Assurance Co39,020$4.09M0.01%+6,053+18.4%Added
Susquehanna International Group, LLP36,198$3.80M0.01%+11,555+46.9%Added
Creative Planning35,681$3.74M0.00%+4,820+15.6%Added
Colony Group, LLC35,363$3.71M0.01%+10,280+41.0%Added
Janus Henderson Group PLC33,854$3.55M0.00%−143−0.4%Reduced
Standard Life Aberdeen plc33,327$3.50M0.01%−121,945−78.5%Reduced
Rice Hall James & Associates, LLC33,111$3.47M0.19%−285−0.9%Reduced
New York State Common Retirement Fund32,791$3.44M0.00%−4,000−10.9%Reduced
Envestnet Asset Management Inc32,651$3.42M0.00%−7,727−19.1%Reduced
Wells Fargo & Company32,107$3.37M0.00%−32,762−50.5%Reduced
Janney Montgomery Scott LLC32,050$3.36M0.01%−9,101−22.1%Reduced
California State Teachers Retirement System30,776$3.23M0.00%−1,056−3.3%Reduced
AQR Capital Management LLC30,395$3.19M0.00%−16,272−34.9%Reduced
RE Advisers Corp29,600$3.10M0.07%00.0%Unchanged
Victory Capital Management Inc29,117$3.05M0.00%−35,755−55.1%Reduced
BNP Paribas Arbitrage, SA28,688$3.01M0.00%−25,597−47.2%Reduced
Thrivent Financial for Lutherans28,240$2.96M0.01%−1,119−3.8%Reduced
Isthmus Partners, LLC27,784$2.91M0.35%−5,486−16.5%Reduced
Moody Aldrich Partners LLC26,874$2.82M0.51%+3,292+14.0%Added
CFM Wealth Partners LLC26,041$2.73M0.48%−36−0.1%Reduced