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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, Q2 2023

Institutional positions in Axcelis Technologies Inc as of Jun 30, 2023. 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
406
+28 vs. Q1 2023
Shares held
29.5M
−565.1K (−1.9%) vs. Q1 2023
Total value
$5.41B
+$1.40B (+35.0%) vs. Q1 2023
New holders
76
114 more added
Sold out
48
161 more reduced

1 institution that held it in Q1 2023 haven't filed for Q2 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2023: 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 2023: 406 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 heldQ2 2023: $5.41B
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, Q2 2023

Shares, value and share of portfolio for each institution holding Axcelis Technologies Inc; share changes are against Q1 2023.

Institutions holding ACLS in Q2 2023
InstitutionSharesValue% of portfolioChange in sharesAction
BlackRock Inc.5,533,573$1.01B0.03%+98,534+1.8%Added
Vanguard Group Inc3,984,538$730.5M0.02%+460,646+13.1%Added
State Street Corp1,123,612$206.0M0.01%+17,839+1.6%Added
FMR LLC1,083,073$198.6M0.02%−997,945−48.0%Reduced
Primecap Management Co1,077,146$197.5M0.17%−88,080−7.6%Reduced
Dimensional Fund Advisors LP941,079$172.5M0.05%−86,528−8.4%Reduced
Invesco Ltd.829,037$152.0M0.04%+80,649+10.8%Added
Driehaus Capital Management LLC746,503$136.9M1.73%+17,862+2.5%Added
Geode Capital Management, LLC713,521$130.8M0.02%+75,520+11.8%Added
Wellington Management Group LLP630,075$115.5M0.02%−277,415−30.6%Reduced
Arrowstreet Capital, Limited Partnership616,433$113.0M0.14%+8,604+1.4%Added
Goldman Sachs Group Inc543,465$99.6M0.03%+149,011+37.8%Added
Price T Rowe Associates Inc489,686$89.8M0.01%−25,741−5.0%Reduced
Whale Rock Capital Management LLC474,361$87.0M1.50%+223,196+88.9%Added
Hood River Capital Management LLC472,375$86.6M2.58%+67,527+16.7%Added
Morgan Stanley401,496$73.6M0.01%+15,363+4.0%Added
Ameriprise Financial Inc400,736$73.5M0.02%−166,508−29.4%Reduced
Northern Trust Corp384,782$70.5M0.01%+6,083+1.6%Added
Norges Bank352,653$64.7M0.01%+164,617+87.5%Added
Prudential Financial Inc315,530$57.8M0.08%+85,073+36.9%Added
Charles Schwab Investment Management Inc311,534$57.1M0.02%−13,204−4.1%Reduced
Bank of New York Mellon Corp307,972$56.5M0.01%+24,046+8.5%Added
Senvest Management, LLC247,806$45.4M1.50%−35,000−12.4%Reduced
Oberweis Asset Management Inc240,399$44.1M5.36%−31,590−11.6%Reduced
Allspring Global Investments Holdings, LLC238,928$43.8M0.07%+233,705+4,474.5%Added
Millennium Management LLC218,328$40.0M0.04%+121,231+124.9%Added
Principal Financial Group Inc215,424$39.5M0.03%+7,702+3.7%Added
Fuller & Thaler Asset Management, Inc.206,233$37.8M0.21%+21,957+11.9%Added
Nuveen Asset Management, LLC179,787$33.0M0.01%+5,772+3.3%Added
JPMorgan Chase & Co174,913$32.1M0.00%+66,753+61.7%Added
Jacobs Levy Equity Management, Inc169,552$31.1M0.18%−38,274−18.4%Reduced
Putnam Investments LLC158,595$29.1M0.04%+13,245+9.1%Added
Man Group plc153,783$28.2M0.09%––
Victory Capital Management Inc153,480$28.1M0.03%+3,144+2.1%Added
Neumeier Poma Investment Counsel LLC142,235$26.1M2.39%−116,090−44.9%Reduced
American Century Companies Inc132,982$24.4M0.02%−1,596−1.2%Reduced
Grantham, Mayo, Van Otterloo & Co. LLC130,506$23.9M0.11%−5,794−4.3%Reduced
UBS Group AG125,687$23.0M0.01%−34,794−21.7%Reduced
Allianz Asset Management GmbH117,774$21.6M0.05%−7,450−5.9%Reduced
First Trust Advisors LP116,365$21.3M0.02%−365−0.3%Reduced
Voya Investment Management LLC109,344$20.0M0.02%+17,323+18.8%Added
BNP PARIBAS ASSET MANAGEMENT Holding S.A.103,835$19.0M0.06%−23,540−18.5%Reduced
Royce & Associates LP99,651$18.3M0.18%−54,924−35.5%Reduced
Adage Capital Partners GP, L.L.C.94,835$17.4M0.04%−1,107−1.2%Reduced
Rhumbline Advisers94,723$17.4M0.02%−1,584−1.6%Reduced
Legal & General Group Plc93,248$17.1M0.01%−2,149−2.3%Reduced
Amundi90,641$16.5M0.01%−18,861−17.2%Reduced
Standard Life Aberdeen plc86,911$15.9M0.04%+86,911New
SEI Investments Co80,294$14.7M0.03%+21,680+37.0%Added
Swiss National Bank71,300$13.1M0.01%+400+0.6%Added
D. E. Shaw & Co., Inc.68,510$12.6M0.02%+18,221+36.2%Added
Paradigm Capital Management Inc64,000$11.7M0.67%00.0%Unchanged
Deutsche Bank AG63,449$11.6M0.01%+692+1.1%Added
Lisanti Capital Growth, LLC62,445$11.4M1.59%−34,210−35.4%Reduced
Russell Investments Group, Ltd.62,273$11.4M0.02%+1,789+3.0%Added
Schroder Investment Management Group61,450$11.3M0.02%+46,233+303.8%Added
Pier Capital, LLC59,237$10.9M1.56%+115+0.2%Added
Public Sector Pension Investment Board58,062$10.6M0.08%+419+0.7%Added
New York State Common Retirement Fund58,060$10.6M0.01%−10,885−15.8%Reduced
AXA S.A.54,400$9.97M0.03%−3,700−6.4%Reduced
Redwood Investments, LLC54,142$9.93M1.21%+54,142New
Great West Life Assurance Co49,811$9.15M0.02%+7,991+19.1%Added
California Public Employees Retirement System48,219$8.84M0.01%+12,179+33.8%Added
AQR Capital Management LLC45,925$8.42M0.02%+24,573+115.1%Added
Twin Tree Management, LP44,850$8.22M0.17%+44,850New
Penbrook Management LLC44,625$8.18M5.93%−2,685−5.7%Reduced
LSV Asset Management44,400$8.14M0.02%−201,200−81.9%Reduced
Credit Suisse AG43,735$8.02M0.01%+4,574+11.7%Added
Alliancebernstein L.P.43,697$8.01M0.00%−7,923−15.3%Reduced
G2 Investment Partners Management LLC43,355$7.95M1.95%+10,255+31.0%Added
Susquehanna International Group, LLP40,195$7.37M0.01%+11,462+39.9%Added
California State Teachers Retirement System39,646$7.27M0.01%−1,370−3.3%Reduced
State of Wisconsin Investment Board39,599$7.26M0.02%−3,851−8.9%Reduced
Rice Hall James & Associates, LLC37,640$6.90M0.39%−18,025−32.4%Reduced
Commonwealth of Pennsylvania Public School Empls Retrmt Sys36,976$6.78M0.05%+2,273+6.5%Added
Los Angeles Capital Management LLC36,884$6.76M0.03%+1,530+4.3%Added
Wells Fargo & Company36,612$6.71M0.00%+10,183+38.5%Added
Clark Capital Management Group, Inc.36,329$6.66M0.06%+100+0.3%Added
Stifel Financial Corp36,060$6.61M0.01%+5,321+17.3%Added
Cerity Partners LLC34,918$6.40M0.02%+30,564+702.0%Added
Algert Global LLC33,995$6.23M0.27%+22,730+201.8%Added
Castellan Group, LLC33,860$6.21M3.97%−9,285−21.5%Reduced
Citigroup Inc33,643$6.17M0.01%−13,903−29.2%Reduced
Susquehanna Fundamental Investments, LLC33,592$6.16M0.23%00.0%Unchanged
Castleark Management LLC33,030$6.06M0.27%−320−1.0%Reduced
BTC Capital Management, Inc.32,969$6.02M0.65%+32,969New
Connor, Clark & Lunn Investment Management Ltd.31,747$5.82M0.03%+22,531+244.5%Added
UBS Asset Management Americas Inc43,351$5.78M0.00%00.0%Unchanged
Thrivent Financial for Lutherans31,292$5.74M0.01%−1,188−3.7%Reduced
Neuberger Berman Group LLC29,608$5.43M0.00%+29,608New
ClariVest Asset Management LLC29,249$5.36M0.27%−11,453−28.1%Reduced
Texas Permanent School Fund28,802$5.28M0.05%−591−2.0%Reduced
Rockefeller Capital Management L.P.27,521$5.05M0.02%+27,521New
Barclays PLC27,356$5.02M0.00%−8,554−23.8%Reduced
Citadel Advisors LLC27,196$4.99M0.01%−142,114−83.9%Reduced
CFM Wealth Partners LLC26,516$4.86M1.18%−602−2.2%Reduced
Lazard Asset Management LLC26,382$4.84M0.01%+6,039+29.7%Added
Artemis Investment Management LLP26,129$4.78M0.06%+26,129New
Readystate Asset Management LP26,090$4.78M0.47%+26,090New
Capital Fund Management S.A.25,929$4.75M0.07%+11,861+84.3%Added