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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; 443 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, Q4 2024

Institutional positions in Axcelis Technologies Inc as of Dec 31, 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
325
−41 vs. Q3 2024
Shares held
30.9M
+640.9K (+2.1%) vs. Q3 2024
Total value
$2.16B
−$1.01B (−31.8%) vs. Q3 2024
New holders
59
126 more added
Sold out
100
92 more reduced

3 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2024: 325 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: 443 institutions
Value heldQ4 2024: $2.16B
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 2026443$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, Q4 2024

Shares, value and share of portfolio for each institution holding Axcelis Technologies Inc; share changes are against Q3 2024.

Institutions holding ACLS in Q4 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Schonfeld Strategic Advisors LLC13,824$965.9K0.01%+8,356+152.8%Added
State of Tennessee, Treasury Department13,893$970.7K0.00%−2,329−14.4%Reduced
Colony Group, LLC14,403$1.01M0.00%−20,960−59.3%Reduced
Four Tree Island Advisory LLC14,791$1.03M0.71%+14,791New
Winton Group Ltd14,848$1.04M0.07%+5,763+63.4%Added
Chase Investment Counsel Corp15,000$1.05M0.34%+15,000New
Louisiana State Employees Retirement System15,700$1.10M0.02%−100−0.6%Reduced
Janney Montgomery Scott LLC15,993$1.12M0.00%−16,057−50.1%Reduced
Quest Partners LLC16,809$1.17M0.16%+12,834+322.9%Added
Globeflex Capital L P16,846$1.18M0.10%+2,419+16.8%Added
HSBC Holdings PLC16,823$1.18M0.00%−26,214−60.9%Reduced
Jain Global LLC16,880$1.18M0.04%+16,880New
Illinois Municipal Retirement Fund16,983$1.19M0.02%−1,202−6.6%Reduced
ProShare Advisors LLC17,066$1.19M0.00%+3,314+24.1%Added
Corebridge Financial, Inc.17,344$1.21M0.01%−1,358−7.3%Reduced
Victory Capital Management Inc17,529$1.22M0.00%−11,588−39.8%Reduced
Rockefeller Capital Management L.P.18,088$1.26M0.00%+18,088New
Manufacturers Life Insurance Company, The18,306$1.28M0.00%−389−2.1%Reduced
State of Alaska, Department of Revenue18,504$1.29M0.01%−110−0.6%Reduced
Mirae Asset Global ETFs Holdings Ltd.18,547$1.30M0.00%+731+4.1%Added
New York State Teachers Retirement System19,305$1.35M0.00%−300−1.5%Reduced
Penbrook Management LLC19,565$1.37M0.93%00.0%Unchanged
Two Sigma Investments, LP19,635$1.37M0.00%+12,335+169.0%Added
MetLife Investment Management19,885$1.39M0.01%+1,095+5.8%Added
Susquehanna Fundamental Investments, LLC20,347$1.42M0.02%+20,347New
Voya Investment Management LLC20,774$1.45M0.00%−103,772−83.3%Reduced
Wolverine Trading, LLC21,132$1.48M0.03%+19,178+981.5%Added
Envestnet Asset Management Inc21,502$1.50M0.00%−11,149−34.1%Reduced
FMR LLC22,059$1.54M0.00%−241,273−91.6%Reduced
Franklin Resources Inc23,266$1.63M0.00%+750+3.3%Added
Numerai GP LLC23,765$1.66M0.45%+23,765New
Gotham Asset Management, LLC23,990$1.68M0.02%+12,568+110.0%Added
Intech Investment Management LLC24,577$1.72M0.02%+13,483+121.5%Added
First Trust Advisors LP26,295$1.84M0.00%−80,597−75.4%Reduced
Cerity Partners LLC26,230$1.86M0.00%−54,947−67.7%Reduced
Isthmus Partners, LLC28,291$1.98M0.24%+507+1.8%Added
Deutsche Bank AG28,487$1.99M0.00%+9,741+52.0%Added
Thrivent Financial for Lutherans28,623$2.05M0.00%+383+1.4%Added
RE Advisers Corp29,600$2.07M0.05%00.0%Unchanged
Wells Fargo & Company30,069$2.10M0.00%−2,038−6.3%Reduced
California State Teachers Retirement System30,507$2.13M0.00%−269−0.9%Reduced
Standard Life Aberdeen plc32,510$2.29M0.00%−817−2.5%Reduced
Rice Hall James & Associates, LLC32,882$2.30M0.13%−229−0.7%Reduced
Assenagon Asset Management S.A.33,080$2.31M0.00%−21,475−39.4%Reduced
Connor, Clark & Lunn Investment Management Ltd.33,376$2.33M0.01%−38,645−53.7%Reduced
Gsa Capital Partners LLP33,924$2.37M0.18%+33,924New
AQR Capital Management LLC34,039$2.38M0.00%+3,644+12.0%Added
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.33,521$2.41M0.00%−24,713−42.4%Reduced
Vident Advisory, LLC35,410$2.47M0.04%+12,060+51.6%Added
Creative Planning35,500$2.48M0.00%−181−0.5%Reduced
Great West Life Assurance Co37,748$2.63M0.00%−1,272−3.3%Reduced
Quantbot Technologies LP37,750$2.64M0.10%+37,750New
Stifel Financial Corp39,920$2.79M0.00%−1,017−2.5%Reduced
D. E. Shaw & Co., Inc.40,380$2.82M0.00%+25,520+171.7%Added
Prudential Financial Inc42,890$3.00M0.00%−911−2.1%Reduced
Verition Fund Management LLC43,715$3.05M0.02%+31,708+264.1%Added
Jump Financial, LLC44,460$3.11M0.07%+35,841+415.8%Added
Marshall Wace, LLP45,118$3.15M0.00%−140,554−75.7%Reduced
State of Wisconsin Investment Board53,750$3.76M0.01%+8,568+19.0%Added
Kennedy Capital Management, Inc.53,881$3.76M0.08%−33,033−38.0%Reduced
BlackBarn Capital Partners LP55,997$3.91M1.54%+55,997New
California Public Employees Retirement System57,261$4.00M0.00%−3,914−6.4%Reduced
Allianz Asset Management GmbH57,955$4.05M0.01%−52,094−47.3%Reduced
LPL Financial LLC60,834$4.25M0.00%+16,152+36.1%Added
Kornitzer Capital Management Inc64,080$4.48M0.09%00.0%Unchanged
Swiss National Bank64,100$4.48M0.00%+600+0.9%Added
Alliancebernstein L.P.66,142$4.62M0.00%+3,288+5.2%Added
Trexquant Investment LP69,894$4.88M0.06%+26,219+60.0%Added
Barclays PLC73,471$5.13M0.00%+5,360+7.9%Added
Susquehanna International Group, LLP74,055$5.17M0.01%+37,857+104.6%Added
UBS Asset Management Americas Inc77,920$5.44M0.00%+2,621+3.5%Added
Capital Fund Management S.A.79,551$5.56M0.05%+34,028+74.7%Added
Public Sector Pension Investment Board81,027$5.66M0.02%+11,840+17.1%Added
Holocene Advisors, LP84,285$5.89M0.02%+42,741+102.9%Added
Harbor Capital Advisors, Inc.87,825$6.14M0.27%+27,497+45.6%Added
Janus Henderson Group PLC90,508$6.32M0.00%+56,654+167.3%Added
Rhumbline Advisers90,842$6.35M0.01%+477+0.5%Added
Ameriprise Financial Inc101,970$7.12M0.00%−505,848−83.2%Reduced
Legal & General Group Plc107,701$7.53M0.00%+411+0.4%Added
Neuberger Berman Group LLC112,196$7.84M0.01%+100.0%Added
Royal Bank of Canada113,242$7.91M0.00%+46,726+70.2%Added
BNP Paribas Arbitrage, SA116,290$8.13M0.01%+87,602+305.4%Added
Citigroup Inc118,187$8.26M0.01%+29,460+33.2%Added
Engineers Gate Manager LP126,171$8.82M0.15%+109,154+641.4%Added
M&G Plc127,599$8.93M0.06%+127,599New
Invesco Ltd.131,122$9.16M0.00%−5,713−4.2%Reduced
Citadel Advisors LLC131,564$9.19M0.01%+52,420+66.2%Added
Senvest Management, LLC138,192$9.66M0.30%−632,298−82.1%Reduced
SEI Investments Co145,167$10.1M0.01%+40,879+39.2%Added
Qube Research & Technologies Ltd152,235$10.6M0.02%+152,235New
Paradigm Capital Management Inc153,900$10.8M0.50%−323,000−67.7%Reduced
Nuveen Asset Management, LLC167,570$11.7M0.00%−139,753−45.5%Reduced
Federated Hermes, Inc.181,261$12.7M0.03%+181,261New
Jackson Square Partners, LLC186,590$13.0M1.41%−56,757−23.3%Reduced
Principal Financial Group Inc188,559$13.2M0.01%+7,476+4.1%Added
JPMorgan Chase & Co189,568$13.2M0.00%+10,645+5.9%Added
Renaissance Technologies LLC211,999$14.8M0.02%+172,200+432.7%Added
Voloridge Investment Management, LLC222,663$15.6M0.06%+180,531+428.5%Added
Bank of New York Mellon Corp226,364$15.8M0.00%−38,432−14.5%Reduced
Massachusetts Financial Services Co233,008$16.3M0.01%+1,140+0.5%Added