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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, Q4 2021

Institutional positions in Axcelis Technologies Inc as of Dec 31, 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
254
+51 vs. Q3 2021
Shares held
27.6M
−1.52M (−5.2%) vs. Q3 2021
Total value
$2.05B
+$685.5M (+50.1%) vs. Q3 2021
New holders
67
68 more added
Sold out
16
80 more reduced

2 institutions that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2021: 254 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 heldQ4 2021: $2.05B
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, Q4 2021

Shares, value and share of portfolio for each institution holding Axcelis Technologies Inc; share changes are against Q3 2021.

Institutions holding ACLS in Q4 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Janus Henderson Group PLC6,823$509.0K0.00%+6,823New
Brown Advisory Inc6,874$513.0K0.00%+6,874New
Royal Bank of Canada6,903$514.0K0.00%+2,383+52.7%Added
Maryland Capital Management6,904$515.0K0.03%+922+15.4%Added
Gamco Investors, Inc. Et Al7,020$523.0K0.00%−700−9.1%Reduced
White Pine Capital LLC7,100$529.0K0.16%00.0%Unchanged
Wesbanco Bank Inc7,200$537.0K0.02%00.0%Unchanged
Eagle Bay Advisors LLC7,600$567.0K0.37%−4,000−34.5%Reduced
Everence Capital Management Inc7,890$588.0K0.04%00.0%Unchanged
Occudo Quantitative Strategies LP8,086$603.0K0.05%+2,553+46.1%Added
Algert Global LLC8,331$621.0K0.08%−33,210−79.9%Reduced
ProShare Advisors LLC8,323$621.0K0.00%+3,187+62.1%Added
Ensign Peak Advisors, Inc8,740$652.0K0.00%−27,960−76.2%Reduced
Metropolitan Life Insurance Co8,865$661.0K0.01%00.0%Unchanged
Bank of Montreal9,139$674.0K0.00%−3,064−25.1%Reduced
Arizona State Retirement System9,037$674.0K0.01%−115−1.3%Reduced
Quantbot Technologies LP9,200$685.0K0.06%+5,700+162.9%Added
Hancock Whitney Corp9,356$698.0K0.02%−86−0.9%Reduced
Handelsbanken Fonder AB9,700$723.0K0.00%00.0%Unchanged
Squarepoint Ops LLC9,730$725.0K0.00%+4,777+96.4%Added
Cetera Investment Advisers10,040$749.0K0.01%+10,040New
Group One Trading, L.P.10,144$756.0K0.01%+10,144New
New York State Teachers Retirement System10,567$788.0K0.00%−100−0.9%Reduced
Shell Asset Management Co10,676$796.0K0.02%+40+0.4%Added
STRS Ohio10,900$812.0K0.00%+7,600+230.3%Added
Moors & Cabot, Inc.10,980$819.0K0.05%+3,180+40.8%Added
Simplex Trading, LLC11,569$862.0K0.03%+11,504+17,698.5%Added
MetLife Investment Management11,583$863.6K0.01%00.0%Unchanged
Bailard, Inc.11,600$865.0K0.03%+2,200+23.4%Added
Oregon Public Employees Retirement Fund12,884$961.0K0.01%−809−5.9%Reduced
Maryland State Retirement & Pension System13,220$986.0K0.03%−90−0.7%Reduced
Renaissance Technologies LLC14,099$1.05M0.00%−42,600−75.1%Reduced
AE Wealth Management LLC14,331$1.07M0.01%−1,080−7.0%Reduced
Raymond James & Associates14,419$1.07M0.00%+8,545+145.5%Added
Winton Group Ltd14,430$1.08M0.07%−13,464−48.3%Reduced
Qube Research & Technologies Ltd14,614$1.09M0.01%+884+6.4%Added
Wakefield Asset Management LLLP14,661$1.09M0.38%+14,661New
Boston Partners14,839$1.11M0.00%−47,450−76.2%Reduced
Gotham Asset Management, LLC15,046$1.12M0.04%+15,046New
Louisiana State Employees Retirement System16,100$1.20M0.03%−100−0.6%Reduced
BNP Paribas Arbitrage, SA16,559$1.23M0.00%−18,110−52.2%Reduced
State of Tennessee, Treasury Department17,060$1.27M0.00%00.0%Unchanged
Amalgamated Bank17,253$1.29M0.01%−247−1.4%Reduced
Franklin Resources Inc19,164$1.43M0.00%+60+0.3%Added
American International Group, Inc.20,254$1.51M0.01%−671−3.2%Reduced
Virginia Retirement Systems Et Al20,700$1.54M0.01%+500+2.5%Added
Martingale Asset Management L P21,684$1.62M0.02%+21,684New
Alpha DNA Investment Management LLC21,990$1.64M1.05%−7,533−25.5%Reduced
Comerica Bank28,101$1.67M0.01%−2,366−7.8%Reduced
Deutsche Bank AG22,645$1.69M0.00%+1,999+9.7%Added
AlphaCrest Capital Management LLC22,721$1.69M0.06%−12,398−35.3%Reduced
State of Alaska, Department of Revenue23,588$1.76M0.02%−850−3.5%Reduced
New York State Common Retirement Fund24,050$1.79M0.00%−80.0%Reduced
Credit Suisse AG24,075$1.79M0.00%−1,342−5.3%Reduced
Texas Permanent School Fund24,122$1.80M0.02%−715−2.9%Reduced
Juncture Wealth Strategies, LLC24,245$1.81M0.86%+391+1.6%Added
SG Americas Securities, LLC24,304$1.81M0.01%−3,299−12.0%Reduced
Schroder Investment Management Group24,370$1.82M0.00%−73,851−75.2%Reduced
Morse Asset Management, Inc24,900$1.86M0.41%+24,900New
Clark Capital Management Group, Inc.24,999$1.86M0.02%+24,999New
Commonwealth of Pennsylvania Public School Empls Retrmt Sys25,177$1.88M0.02%−280−1.1%Reduced
Gsa Capital Partners LLP25,965$1.94M0.24%+18,678+256.3%Added
PDT Partners, LLC26,500$1.98M0.15%00.0%Unchanged
Susquehanna International Group, LLP26,682$1.99M0.00%+26,682New
Aviva PLC27,539$2.05M0.01%+27,539New
Great West Life Assurance Co28,716$2.14M0.00%−34−0.1%Reduced
CFM Wealth Partners LLC28,187$2.16M0.48%+28,187New
Allspring Global Investments Holdings, LLC29,413$2.19M0.00%+29,413New
Yousif Capital Management, LLC30,847$2.30M0.02%+30,847New
Citigroup Inc31,818$2.37M0.00%+9,519+42.7%Added
CSM Advisors, LLC32,330$2.41M0.16%00.0%Unchanged
Victory Capital Management Inc32,919$2.46M0.00%−365−1.1%Reduced
Friess Associates LLC33,248$2.48M0.97%+33,248New
Two Sigma Investments, LP33,845$2.52M0.01%−53,799−61.4%Reduced
Citadel Advisors LLC33,991$2.53M0.00%−150.0%Reduced
Voya Investment Management LLC34,152$2.55M0.00%−391−1.1%Reduced
Walthausen & Co., LLC35,014$2.61M0.69%−17,600−33.5%Reduced
Trexquant Investment LP36,170$2.70M0.17%+36,170New
UBS Asset Management Americas Inc36,722$2.74M0.00%−1,446−3.8%Reduced
Teachers Retirement System of the State of Kentucky39,411$2.94M0.03%00.0%Unchanged
LPL Financial LLC40,095$2.99M0.00%+17,549+77.8%Added
AQR Capital Management LLC40,519$3.02M0.01%+1,759+4.5%Added
Canada Pension Plan Investment Board42,100$3.14M0.00%+24,100+133.9%Added
SEI Investments Co42,701$3.18M0.01%+24,037+128.8%Added
Putnam Investments LLC42,890$3.20M0.00%+42,890New
JPMorgan Chase & Co44,832$3.34M0.00%−39,264−46.7%Reduced
State of New Jersey Common Pension Fund D44,895$3.35M0.01%+44,895New
Globeflex Capital L P45,999$3.43M0.70%00.0%Unchanged
EAM Global Investors LLC46,025$3.43M0.61%00.0%Unchanged
Alliancebernstein L.P.46,080$3.44M0.00%+1,645+3.7%Added
California State Teachers Retirement System46,612$3.48M0.00%+914+2.0%Added
Jane Street Group, LLC47,683$3.56M0.01%+35,423+288.9%Added
State Board of Administration of Florida Retirement System50,263$3.75M0.01%−1,365−2.6%Reduced
Monarch Partners Asset Management LLC54,711$4.08M0.83%+4,630+9.2%Added
AXA S.A.56,800$4.24M0.01%+56,800New
Barclays PLC56,841$4.24M0.00%+15,510+37.5%Added
Wells Fargo & Company58,033$4.33M0.00%+998+1.7%Added
Bank of America Corp58,422$4.36M0.00%+16,866+40.6%Added
EAM Investors, LLC60,970$4.55M0.75%+28,395+87.2%Added
Penbrook Management LLC62,300$4.64M2.80%−1,500−2.4%Reduced