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Livermore
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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.

Q1 2026 vs. Q4 2025

How the institutions holding Axcelis Technologies Inc changed between Q4 2025 and Q1 2026.

All holders in Q1 2026All holders in Q4 2025

13F holders of ACLS: Q4 2025 compared with Q1 2026
MeasureQ4 2025Of which not filed for Q1 2026Q1 2026Change
Holders3735380+12
Shares31.3M4.22M32.6M+5.48M (+20.2%)
Value$2.52B$339.1M$3.03B+$851.0M (+39.0%)

5 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so the changes leave them out.

New holders (70)

Institutions that held Axcelis Technologies Inc at the end of Q1 2026 but not at the end of Q4 2025.

Institutions new to ACLS in Q1 2026
InstitutionSharesValue% of portfolio
Vanguard Portfolio Management LLC2,488,293$231.6M0.01%
Vanguard Capital Management LLC1,382,770$128.7M0.00%
Vanguard Fiduciary Trust Co200,465$18.7M0.00%
Emerald Advisers, LLC96,238$8.96M0.28%
Sagefield Capital LP82,238$7.65M0.55%
Portolan Capital Management, LLC77,168$7.18M0.38%
Great Lakes Advisors, LLC47,594$4.43M0.04%
Emerald Mutual Fund Advisers Trust47,412$4.41M0.21%
Allianz Asset Management GmbH40,133$3.74M0.00%
Emerald Investment Advisers, LLC39,764$3.70M0.33%
Empowered Funds, LLC39,087$3.64M0.02%
Alberta Investment Management Corp35,750$3.33M0.02%
Voleon Capital Management LP35,221$3.28M0.07%
Toronto Dominion Bank34,008$3.17M0.01%
Inspire Advisors, LLC29,411$2.74M0.22%
Vanguard Asset Management, Ltd27,199$2.53M0.00%
Yakira Capital Management, Inc.22,619$2.11M0.62%
Hussman Strategic Advisors, Inc.21,000$1.95M0.42%
Connor, Clark & Lunn Investment Management Ltd.15,678$1.46M0.00%
Virtu Financial LLC14,697$1.37M0.06%
Wesbanco Bank Inc12,800$1.19M0.03%
Vanguard Global Advisers, LLC12,351$1.15M0.00%
Oppenheimer Asset Management Inc.11,209$1.04M0.01%
Entropy Technologies, LP10,790$1.00M0.05%
Bridgewater Associates, LP8,301$772.7K0.00%
Vanguard Investments Australia, Ltd.7,602$707.6K0.00%
Adage Capital Partners GP, L.L.C.7,500$698.1K0.00%
Western Wealth Management, LLC6,936$645.6K0.02%
IMC-Chicago, LLC6,736$627.0K0.01%
Bokf, NA6,221$579.1K0.01%
Quadrature Capital Ltd6,075$565.5K0.01%
DRW Securities, LLC5,052$470.2K0.03%
Corient IA LLC5,000$465.4K0.44%
Alpine Global Management, LLC4,044$376.4K0.06%
Atria Investments LLC3,906$363.6K0.00%
Catalyst Funds Management Pty Ltd3,800$353.7K0.06%
Numerai GP LLC3,638$338.6K0.03%
Skandinaviska Enskilda Banken AB (publ)3,430$319.5K0.01%
Edgestream Partners, L.P.3,362$312.9K0.01%
EntryPoint Capital, LLC3,213$299.1K0.09%
Mirabella Financial Services LLP2,753$256.2K0.02%
Exchange Traded Concepts, LLC2,719$253.1K0.00%
Cornerstone Investment Partners, LLC2,605$242.5K0.01%
Cresset Asset Management, LLC2,482$231.0K0.00%
Baird Financial Group, Inc.2,421$225.3K0.00%
Integrated Wealth Concepts LLC2,407$224.0K0.00%
Darden Wealth Group Inc2,385$222.0K0.11%
Crossmark Global Holdings, Inc.2,330$216.9K0.00%
Stratos Wealth Partners, LTD.2,321$216.0K0.00%
Beacon Pointe Advisors, LLC2,321$216.0K0.00%
Point72 Asset Management, L.P.2,250$209.4K0.00%
TRB Wealth Management, LLC2,176$202.5K0.03%
Swiss Life Asset Management Ltd2,174$202.4K0.00%
denkapparat Operations GmbH2,168$201.8K0.08%
Salem Investment Counselors Inc685$63.8K0.00%
Advisory Services Network, LLC569$53.0K0.00%
Opal Wealth Advisors, LLC254$23.6K0.01%
Kemnay Advisory Services Inc.249$23.2K0.00%
Clear Street Markets LLC238$22.2K0.01%
Bank of New Hampshire179$16.7K0.00%
J.Safra Asset Management Corp68$6.33K0.00%
Barrow Hanley Mewhinney & Strauss LLC57$5.31K0.00%
Spire Wealth Management43$4.00K0.00%
WPG Advisers, LLC29$2.70K0.00%
CVA Family Office, LLC19$1.77K0.00%
Rossby Financial, LCC14$1.34K0.00%
Investors Portfolio Services LLC8$1.31K0.00%
Twin Peaks Wealth Advisors, LLC10$9310.00%
Vermillion Wealth Management, Inc.2$1860.00%
Curio Wealth, LLC1$930.00%

Sold out (58)

Institutions that held Axcelis Technologies Inc at the end of Q4 2025 and filed for Q1 2026 without it.

Institutions that sold out of ACLS in Q1 2026
InstitutionShares, Q4 2025Value, Q4 2025
Arrowstreet Capital, Limited Partnership212,050$17.0M
Clark Capital Management Group, Inc.110,294$8.86M
BlackBarn Capital Partners LP96,573$7.76M
Zacks Investment Management88,080$7.08M
Jane Street Group, LLC79,049$6.35M
Renaissance Technologies LLC66,899$5.37M
Soviero Asset Management, LP46,000$3.70M
F/M Investments LLC40,294$3.24M
Bridgeway Capital Management, LLC36,000$2.89M
Quest Partners LLC26,367$2.12M
Algert Global LLC25,340$2.04M
Aquatic Capital Management LLC22,642$1.82M
Elo Mutual Pension Insurance Co22,446$1.80M
Jackson Creek Investment Advisors LLC22,054$1.77M
Verition Fund Management LLC21,177$1.70M
Tudor Investment Corp Et Al20,741$1.67M
Dynamic Technology Lab Private Ltd19,470$1.56M
Mizuho Markets Cayman LP18,816$1.51M
Wakefield Asset Management LLLP18,133$1.46M
Oliver Luxxe Assets LLC18,063$1.45M
Twinbeech Capital LP18,000$1.45M
Bridgefront Capital, LLC17,765$1.43M
Quantbot Technologies LP13,619$1.09M
Engineers Gate Manager LP11,167$897.2K
Two Sigma Securities, LLC9,333$749.8K
Teacher Retirement System of Texas7,519$604.1K
Unique Wealth Strategies, LLC7,060$567.2K
Gsa Capital Partners LLP5,762$463.0K
Canada Pension Plan Investment Board5,600$449.9K
HRT Financial LP4,576$367.0K
Mackenzie Financial Corp4,122$335.5K
Truist Financial Corp3,244$260.6K
Ameritas Advisory Services, LLC3,210$257.9K
Principal Securities, Inc.3,200$257.1K
Walleye Trading LLC3,168$254.5K
Graham Capital Management, L.P.3,114$250.2K
Occidental Asset Management, LLC2,810$225.8K
Bayforest Capital Ltd2,193$176.2K
St Germain D J Co Inc2,188$175.8K
Clearstead Advisors, LLC719$57.8K
Leonteq Securities AG500$40.2K
SageView Advisory Group, LLC478$38.4K
REAP Financial Group, LLC308$24.7K
Kestra Advisory Services, LLC302$24.3K
Richardson Financial Services Inc.277$22.3K
Raleigh Capital Management Inc.194$15.6K
Group One Trading, L.P.166$13.3K
Cullen/Frost Bankers, Inc.120$9.64K
Walleye Capital LLC108$8.68K
Transamerica Financial Advisors, Inc.88$7.07K
SRS Capital Advisors, Inc.85$6.83K
Asset Dedication, LLC52$4.18K
Cape Investment Advisory, Inc.30$2.41K
Signature Equity Partners, LLC20$1.61K
Quattro Advisors LLC20$1.61K
Flagship Harbor Advisors, LLC9$723
Cedar Mountain Advisors, LLC1$80
Dunhill Financial, LLC1$60

Not filed for Q1 2026 yet (5)

Institutions that held Axcelis Technologies Inc at the end of Q4 2025 and haven't filed a 13F for Q1 2026. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding ACLS in Q4 2025 that haven't filed for Q1 2026
InstitutionShares, Q4 2025Value, Q4 2025
Vanguard Group Inc4,122,529$331.2M
Norges Bank88,147$7.08M
Comerica Bank8,969$720.6K
CIBC Private Wealth Group, LLC346$27.8K
Global Retirement Partners, LLC316$25.4K