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Livermore
ZHEN

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 2025

Institutional positions in Axcelis Technologies Inc as of Dec 31, 2025. 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
373
+16 vs. Q3 2025
Shares held
31.3M
+955.3K (+3.1%) vs. Q3 2025
Total value
$2.52B
−$433.0M (−14.7%) vs. Q3 2025
New holders
67
121 more added
Sold out
51
121 more reduced

5 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2025: 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 2025: 373 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 2025: $2.52B
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 2025

Shares, value and share of portfolio for each institution holding Axcelis Technologies Inc; share changes are against Q3 2025.

Institutions holding ACLS in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Cullen/Frost Bankers, Inc.120$9.64K0.00%−82−40.6%Reduced
Walleye Capital LLC108$8.68K0.00%−442−80.4%Reduced
Caitong International Asset Management Co., Ltd106$8.52K0.00%+106New
SHP Wealth Management105$8.44K0.00%+105New
Paladin Partners, LLC100$8.03K0.01%+100New
Harbour Investments, Inc.97$7.79K0.00%+67+223.3%Added
Pension & Wealth Management Advisors, Inc.95$7.63K0.00%00.0%Unchanged
Private Trust Co NA94$7.55K0.00%−2,089−95.7%Reduced
Fourth Dimension Wealth, LLC92$7.39K0.00%00.0%Unchanged
MAI Capital Management88$7.07K0.00%+88New
Transamerica Financial Advisors, Inc.88$7.07K0.00%+88New
Root Financial Partners, LLC87$6.99K0.00%+35+67.3%Added
SRS Capital Advisors, Inc.85$6.83K0.00%−298−77.8%Reduced
Rothschild Investment LLC75$6.03K0.00%+10+15.4%Added
Smithfield Trust Co80$6.00K0.00%00.0%Unchanged
Private Wealth Management Group, LLC71$5.71K0.00%00.0%Unchanged
Groesbeck Investment Management Corp62$5.00K0.01%+62New
Key Financial Inc60$4.82K0.00%00.0%Unchanged
Huntington National Bank60$4.74K0.00%−4−6.3%Reduced
Kilter Group LLC58$4.66K0.00%+16+38.1%Added
Carolina Wealth Advisors, LLC57$4.58K0.00%+57New
Basecamp Wealth Advisors LLC54$4.34K0.00%+54New
Asset Dedication, LLC52$4.18K0.00%00.0%Unchanged
First Pacific Financial52$4.18K0.00%+52New
IFP Advisors, Inc44$3.54K0.00%00.0%Unchanged
Avion Wealth42$3.00K0.00%00.0%Unchanged
McIlrath & Eck, LLC32$2.57K0.00%−67−67.7%Reduced
Vision Financial Markets LLC30$2.41K0.00%00.0%Unchanged
Cape Investment Advisory, Inc.30$2.41K0.00%+30New
McMillan Office, Inc.29$2.33K0.00%+29New
Optiver Holding B.V.28$2.25K0.00%−97−77.6%Reduced
Prestige Wealth Management Group LLC28$2.25K0.00%00.0%Unchanged
Truvestments Capital LLC25$2.01K0.00%−70−73.7%Reduced
Creative Financial Designs Inc25$2.01K0.00%00.0%Unchanged
Fortitude Family Office, LLC25$2.01K0.00%00.0%Unchanged
True Wealth Design, LLC25$2.01K0.00%00.0%Unchanged
Bare Financial Services, Inc25$2.01K0.00%+9+56.3%Added
Strengthening Families & Communities, LLC25$2.01K0.00%+25New
Sankala Group LLC24$1.98K0.00%+24New
Farmers & Merchants Investments Inc23$1.85K0.00%00.0%Unchanged
Johnson Financial Group, Inc.21$1.69K0.00%00.0%Unchanged
Retirement Wealth Solutions LLC21$1.69K0.00%+2+10.5%Added
Ronald Blue Trust, Inc.20$1.61K0.00%00.0%Unchanged
Signature Equity Partners, LLC20$1.61K0.00%+20New
Quattro Advisors LLC20$1.61K0.00%+20New
Whittier Trust Co of Nevada Inc15$1.41K0.00%00.0%Unchanged
Zions Bancorporation, National Association13$1.04K0.00%+13New
Capital Advisors, Ltd. LLC7$1.00K0.00%00.0%Unchanged
JFS Wealth Advisors, LLC10$8040.00%+4+66.7%Added
Manchester Capital Management LLC10$8040.00%+10New
Bruce G. Allen Investments, LLC10$8030.00%00.0%Unchanged
Flagship Harbor Advisors, LLC9$7230.00%+9New
Bell Investment Advisors, Inc8$6430.00%−3−27.3%Reduced
UMA Financial Services, Inc.8$6430.00%00.0%Unchanged
Cornerstone Planning Group LLC7$6390.00%00.0%Unchanged
CWM Advisors, LLC7$5620.00%+7New
DecisionPoint Financial, LLC6$4830.00%00.0%Unchanged
Strategic Investment Solutions, Inc.6$4820.00%00.0%Unchanged
TD Capital Management LLC6$4820.00%+6New
USA Financial Portformulas Corp6$4820.00%+6New
DiNuzzo Private Wealth, Inc.4$3220.00%+4New
Ankerstar Wealth, LLC4$3210.00%+4New
Meramec Financial Planners, LLC2$1730.00%+2New
Abound Wealth Management2$1610.00%00.0%Unchanged
HFM Investment Advisors, LLC2$1610.00%00.0%Unchanged
Rialto Wealth Management, LLC2$1610.00%+1+100.0%Added
Gilpin Wealth Management, LLC2$1610.00%+2New
SJS Investment Consulting Inc.1$810.00%−1−50.0%Reduced
TFC Financial Management1$810.00%00.0%Unchanged
Essential Partners LLC1$800.00%00.0%Unchanged
Bay Harbor Wealth Management, LLC1$800.00%00.0%Unchanged
Cedar Mountain Advisors, LLC1$800.00%+1New
Dunhill Financial, LLC1$600.00%+1New
Healthcare of Ontario Pension Plan Trust Fund0$00.00%−36,000−100.0%Sold out
Jackson Square Partners, LLC0$00.00%−27,335−100.0%Sold out
New Insight Wealth Advisors0$00.00%−27,013−100.0%Sold out
Marshall Wace, LLP0$00.00%−25,684−100.0%Sold out
Chase Investment Counsel Corp0$00.00%−24,000−100.0%Sold out
Andra AP-fonden0$00.00%−19,990−100.0%Sold out
Oppenheimer Asset Management Inc.0$00.00%−14,747−100.0%Sold out
Mariner, LLC0$00.00%−14,529−100.0%Sold out
Rede Wealth, LLC0$00.00%−11,495−100.0%Sold out
ExodusPoint Capital Management, LP0$00.00%−10,448−100.0%Sold out
Fox Run Management, L.L.C.0$00.00%−9,618−100.0%Sold out
Ausbil Investment Management Ltd0$00.00%−9,234−100.0%Sold out
Allianz Asset Management GmbH0$00.00%−7,315−100.0%Sold out
Kerrisdale Advisers, LLC0$00.00%−7,265−100.0%Sold out
Horizon Investments, LLC0$00.00%−7,194−100.0%Sold out
Veracity Capital LLC0$00.00%−6,114−100.0%Sold out
Man Group plc0$00.00%−5,979−100.0%Sold out
Empowered Funds, LLC0$00.00%−4,820−100.0%Sold out
Magnetar Financial LLC0$00.00%−4,618−100.0%Sold out
SkyOak Wealth, LLC0$00.00%−4,177−100.0%Sold out
Edgestream Partners, L.P.0$00.00%−3,386−100.0%Sold out
Stratos Wealth Partners, LTD.0$00.00%−2,594−100.0%Sold out
Cresset Asset Management, LLC0$00.00%−2,518−100.0%Sold out
Skandinaviska Enskilda Banken AB (publ)0$00.00%−2,503−100.0%Sold out
Baird Financial Group, Inc.0$00.00%−2,500−100.0%Sold out
NJ State Employees Deferred Compensation Plan0$00.00%−2,358−100.0%Sold out
Crossmark Global Holdings, Inc.0$00.00%−2,356−100.0%Sold out