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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, Q3 2021

Institutional positions in Axcelis Technologies Inc as of Sep 30, 2021. 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
205
+17 vs. Q2 2021
Shares held
29.1M
+235.6K (+0.8%) vs. Q2 2021
Total value
$1.37B
+$201.9M (+17.3%) vs. Q2 2021
New holders
36
52 more added
Sold out
19
80 more reduced

1 institution that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2021: 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 2021: 205 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 heldQ3 2021: $1.37B
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, Q3 2021

Shares, value and share of portfolio for each institution holding Axcelis Technologies Inc; share changes are against Q2 2021.

Institutions holding ACLS in Q3 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Louisiana State Employees Retirement System16,200$762.0K0.02%+1,000+6.6%Added
State of Tennessee, Treasury Department17,060$803.0K0.00%−3,620−17.5%Reduced
Amalgamated Bank17,500$823.0K0.01%−365−2.0%Reduced
Canada Pension Plan Investment Board18,000$847.0K0.00%+18,000New
SEI Investments Co18,664$878.0K0.00%00.0%Unchanged
Franklin Resources Inc19,104$899.0K0.00%+19,104New
Virginia Retirement Systems Et Al20,200$950.0K0.01%−500−2.4%Reduced
Deutsche Bank AG20,646$971.0K0.00%−30,656−59.8%Reduced
American International Group, Inc.20,925$984.0K0.01%−731−3.4%Reduced
Citigroup Inc22,299$1.05M0.00%−7,311−24.7%Reduced
Stephens Inc22,489$1.06M0.02%+22,489New
LPL Financial LLC22,546$1.06M0.00%+9,407+71.6%Added
Juncture Wealth Strategies, LLC23,854$1.12M0.59%+1,584+7.1%Added
New York State Common Retirement Fund24,058$1.13M0.00%−4,194−14.8%Reduced
State of Alaska, Department of Revenue24,438$1.15M0.01%+1,195+5.1%Added
Texas Permanent School Fund24,837$1.17M0.01%−203−0.8%Reduced
Credit Suisse AG25,417$1.20M0.00%−2,590−9.2%Reduced
Commonwealth of Pennsylvania Public School Empls Retrmt Sys25,457$1.20M0.01%−328−1.3%Reduced
PDT Partners, LLC26,500$1.25M0.09%+26,500New
SG Americas Securities, LLC27,603$1.30M0.01%+27,603New
Winton Group Ltd27,894$1.31M0.07%−1,237−4.2%Reduced
Great West Life Assurance Co28,750$1.36M0.00%00.0%Unchanged
Alpha DNA Investment Management LLC29,523$1.39M0.97%+29,523New
Glaxis Capital Management, LLC30,000$1.41M3.00%+30,000New
Comerica Bank30,467$1.50M0.01%−1,017−3.2%Reduced
CSM Advisors, LLC32,330$1.52M0.11%−400−1.2%Reduced
Cubist Systematic Strategies, LLC32,382$1.52M0.02%+20,103+163.7%Added
EAM Investors, LLC32,575$1.53M0.26%+32,575New
Victory Capital Management Inc33,284$1.57M0.00%−9,667−22.5%Reduced
Citadel Advisors LLC34,006$1.60M0.00%−58,838−63.4%Reduced
Voya Investment Management LLC34,543$1.62M0.00%+773+2.3%Added
BNP Paribas Arbitrage, SA34,669$1.63M0.00%+22,803+192.2%Added
AlphaCrest Capital Management LLC35,119$1.65M0.09%+8,700+32.9%Added
Ensign Peak Advisors, Inc36,700$1.73M0.00%00.0%Unchanged
UBS Asset Management Americas Inc38,168$1.80M0.00%+7,230+23.4%Added
AQR Capital Management LLC38,760$1.82M0.00%−13,378−25.7%Reduced
Teachers Retirement System of the State of Kentucky39,411$1.85M0.02%00.0%Unchanged
Barclays PLC41,331$1.94M0.00%+10,089+32.3%Added
Bank of America Corp41,556$1.95M0.00%+1,130+2.8%Added
Algert Global LLC41,541$1.95M0.26%+9,501+29.7%Added
Alliancebernstein L.P.44,435$2.09M0.00%−1,630−3.5%Reduced
California State Teachers Retirement System45,698$2.15M0.00%−178−0.4%Reduced
Globeflex Capital L P45,999$2.16M0.47%−25,133−35.3%Reduced
EAM Global Investors LLC46,025$2.17M0.51%+46,025New
First Trust Advisors LP46,433$2.18M0.00%−19,827−29.9%Reduced
Los Angeles Capital Management LLC47,750$2.25M0.01%+23,410+96.2%Added
Monarch Partners Asset Management LLC50,081$2.35M0.34%−92,577−64.9%Reduced
State Board of Administration of Florida Retirement System51,628$2.43M0.00%−3,254−5.9%Reduced
Walthausen & Co., LLC52,614$2.47M0.63%−11,466−17.9%Reduced
Renaissance Technologies LLC56,699$2.67M0.00%−81,400−58.9%Reduced
Wells Fargo & Company57,035$2.68M0.00%+3,250+6.0%Added
Norges Bank60,516$2.85M0.00%−7,020−10.4%Reduced
Intrinsic Edge Capital Management LLC61,493$2.89M0.20%+61,493New
Boston Partners62,289$2.93M0.00%−18,451−22.9%Reduced
Penbrook Management LLC63,800$3.00M1.89%−750−1.2%Reduced
Employees Retirement System of Texas64,558$3.04M0.04%+12,000+22.8%Added
Prudential Financial Inc66,343$3.12M0.00%−17,570−20.9%Reduced
Public Sector Pension Investment Board67,844$3.19M0.02%−820−1.2%Reduced
Swiss National Bank74,100$3.48M0.00%00.0%Unchanged
Panagora Asset Management Inc76,830$3.61M0.02%−710−0.9%Reduced
State of Wisconsin Investment Board78,500$3.69M0.01%+8,200+11.7%Added
Acadian Asset Management LLC81,461$3.83M0.01%−1,177−1.4%Reduced
Rhumbline Advisers81,448$3.83M0.01%−13,160−13.9%Reduced
Legal & General Group Plc81,513$3.83M0.00%+6,702+9.0%Added
JPMorgan Chase & Co84,096$3.96M0.00%−16,245−16.2%Reduced
Millrace Asset Group, Inc.87,618$4.12M2.57%+1,262+1.5%Added
Two Sigma Investments, LP87,644$4.12M0.01%+40,139+84.5%Added
Bank Julius Baer & Co. Ltd, Zurich92,702$4.36M0.03%+16,848+22.2%Added
Parametric Portfolio Associates LLC98,006$4.61M0.00%+1,727+1.8%Added
Schroder Investment Management Group98,221$4.62M0.01%+91,902+1,454.4%Added
GW&K Investment Management, LLC115,370$5.43M0.05%+605+0.5%Added
UBS Group AG121,136$5.70M0.00%−7,989−6.2%Reduced
Rice Hall James & Associates, LLC123,625$5.81M0.21%−20,123−14.0%Reduced
Nuveen Asset Management, LLC133,050$6.50M0.00%−6,115−4.4%Reduced
Ameriprise Financial Inc141,051$6.63M0.00%−5,609−3.8%Reduced
Paradigm Capital Management Inc144,000$6.77M0.35%−20,000−12.2%Reduced
Kennedy Capital Management, Inc.149,566$7.03M0.16%−12,945−8.0%Reduced
Oberweis Asset Management Inc153,870$7.24M1.50%+25,790+20.1%Added
Two Sigma Advisers, LP184,600$8.68M0.02%+48,800+35.9%Added
Morgan Stanley201,392$9.47M0.00%−84,039−29.4%Reduced
S Squared Technology, LLC211,293$9.94M4.50%00.0%Unchanged
Federated Hermes, Inc.229,170$10.8M0.02%+9,469+4.3%Added
Principal Financial Group Inc235,962$11.1M0.01%−1,864−0.8%Reduced
Charles Schwab Investment Management Inc242,241$11.4M0.00%−10,108−4.0%Reduced
Pier Capital, LLC259,458$12.2M1.26%+1,174+0.5%Added
Millennium Management LLC305,847$14.4M0.02%+124,346+68.5%Added
Bank of New York Mellon Corp338,405$15.9M0.00%+4,305+1.3%Added
Assenagon Asset Management S.A.342,255$16.1M0.07%+108,347+46.3%Added
Arrowstreet Capital, Limited Partnership347,966$16.4M0.02%−33,826−8.9%Reduced
Northern Trust Corp402,206$18.9M0.00%−14,999−3.6%Reduced
Manufacturers Life Insurance Company, The508,058$23.9M0.02%−82,254−13.9%Reduced
Geode Capital Management, LLC569,426$26.8M0.00%+4,031+0.7%Added
Thrivent Financial for Lutherans572,066$26.9M0.05%−12,400−2.1%Reduced
Invesco Ltd.616,462$29.0M0.01%+446,961+263.7%Added
Royce & Associates LP677,765$31.9M0.24%−271,550−28.6%Reduced
Goldman Sachs Group Inc690,530$32.5M0.01%+22,424+3.4%Added
Russell Investments Group, Ltd.919,913$43.3M0.07%−102,908−10.1%Reduced
Driehaus Capital Management LLC949,576$44.7M0.53%+246,044+35.0%Added
State Street Corp1,087,635$51.2M0.00%+3820.0%Added
Wellington Management Group LLP1,218,262$57.3M0.01%−31,175−2.5%Reduced