Arm Holdings PLC

ARM

Exchange: Nasdaq
Industry: Semiconductors & Related Devices
SEC CIK: 0001973239

SEC filings (opens in a new tab)

In the last 90 days, Arm Holdings PLC insiders filed 0 open-market purchases and 2 sales; 963 institutions reported holding it in 13F filings for Q2 2026, worth $35.0B in total; 3 superinvestors hold it, including Altimeter Capital and Duquesne Family Office.

13F holders, Q3 2026

Institutional positions in Arm Holdings PLC as of Sep 30, 2026. 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

Q3 2026 data is still coming in (13F filing deadline: Nov 16, 2026), so these numbers are incomplete.

Institutional holders: 4; 0 vs. Q2 2026
Shares held: 21.3K; +33 (+0.2%) vs. Q2 2026
Total value: $6.16M; −$1.37M (−18.2%) vs. Q2 2026
New holders: 1; 0 more added
Sold out: 1; 1 more reduced

959 institutions that held it in Q2 2026 haven't filed for Q3 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2026: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting ARM 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 holders

Value held

Institutions holding ARM and their total value by quarter
Quarter	Holders	Value
Q2 2026	963	$35.0B
Q1 2026	745	$13.7B
Q4 2025	654	$8.97B
Q3 2025	659	$10.6B
Q2 2025	669	$13.1B
Q1 2025	636	$8.09B
Q4 2024	641	$7.93B
Q3 2024	615	$8.66B
Q2 2024	568	$9.95B
Q1 2024	410	$7.63B
Q4 2023	271	$5.82B
Q3 2023	210	$3.97B
Q2 2023	0	$0
Q1 2023	0	$0
Q4 2022	0	$0
Q3 2022	0	$0
Q2 2022	0	$0
Q1 2022	0	$0
Q4 2021	0	$0
Q3 2021	0	$0
Q2 2021	0	$0
Q1 2021	0	$0

Institutions, Q3 2026

Shares, value and share of portfolio for each institution holding Arm Holdings PLC; share changes are against Q2 2026.

Institutions holding ARM in Q3 2026
Institution	Shares	Value	% of portfolio	Change in shares	Action
Westwood Wealth Management	–	–	–	–	Not filed
Vestmark Advisory Solutions, Inc.	–	–	–	–	Not filed
Chicago Capital, LLC	–	–	–	–	Not filed
Lagoda Investment Management, L.P.	–	–	–	–	Not filed
Jackson Square Capital, LLC	–	–	–	–	Not filed
Groupe la Francaise	–	–	–	–	Not filed
Duquesne Family Office LLCSuperinvestorDuquesne Family Office	–	–	–	–	Not filed
Oppenheimer Asset Management Inc.	–	–	–	–	Not filed
Exchange Traded Concepts, LLC	–	–	–	–	Not filed
Mizuho Markets Cayman LP	–	–	–	–	Not filed
Fred Alger Management, LLC	–	–	–	–	Not filed
Modus Advisors, LLC	–	–	–	–	Not filed
Louisiana State Employees Retirement System	–	–	–	–	Not filed
Morgens Waterfall Vintiadis & Co Inc	–	–	–	–	Not filed
Financial Gravity Companies, Inc.	–	–	–	–	Not filed
Mariner, LLC	–	–	–	–	Not filed
EFG International AG	–	–	–	–	Not filed
Azimuth Capital Investment Management LLC	–	–	–	–	Not filed
MML Investors Services, LLC	–	–	–	–	Not filed
Marsico Capital Management LLC	–	–	–	–	Not filed
Baader Bank INC	–	–	–	–	Not filed
Baker Chad R	–	–	–	–	Not filed
Independent Advisor Alliance	–	–	–	–	Not filed
Gunderson Capital Management Inc.	–	–	–	–	Not filed
Meiji Yasuda Asset Management Co Ltd.	–	–	–	–	Not filed
Vontobel Holding Ltd.	–	–	–	–	Not filed
MUFG Securities EMEA plc	–	–	–	–	Not filed
Equitable Holdings, Inc.	–	–	–	–	Not filed
Longitude (Cayman) Ltd.	–	–	–	–	Not filed
Blue Fin Capital, Inc.	–	–	–	–	Not filed
180 Wealth Advisors, LLC	–	–	–	–	Not filed
NewEdge Wealth, LLC	–	–	–	–	Not filed
Nomura Holdings Inc	–	–	–	–	Not filed
VMS Asset Management Limited	–	–	–	–	Not filed
Blair William & Co	–	–	–	–	Not filed
Oaktop Capital Management II, L.P.	–	–	–	–	Not filed
CacheTech Inc.	–	–	–	–	Not filed
Newbridge Financial Services Group, Inc.	–	–	–	–	Not filed
VestGen Advisors, LLC	–	–	–	–	Not filed
Credit Agricole S A	–	–	–	–	Not filed
Federation des caisses Desjardins du Quebec	–	–	–	–	Not filed
Decker Retirement Planning Inc.	–	–	–	–	Not filed
GWM Advisors LLC	–	–	–	–	Not filed
Camarda Financial Advisors, LLC	–	–	–	–	Not filed
AIA Group Ltd	–	–	–	–	Not filed
Mediolanum International Funds Ltd	–	–	–	–	Not filed
Kestra Advisory Services, LLC	–	–	–	–	Not filed
TD Waterhouse Canada Inc.	–	–	–	–	Not filed
L & S Advisors Inc	–	–	–	–	Not filed
Mount Yale Investment Advisors, LLC	–	–	–	–	Not filed
Tower Research Capital LLC (TRC)	–	–	–	–	Not filed
Haven Capital Group, Inc.	–	–	–	–	Not filed
Lido Advisors, LLC	–	–	–	–	Not filed
Norinchukin Bank, The	–	–	–	–	Not filed
Cerity Partners LLC	–	–	–	–	Not filed
Integrated Wealth Concepts LLC	–	–	–	–	Not filed
Midwest Professional Planners, LTD.	–	–	–	–	Not filed
Ameritas Investment Partners, Inc.	–	–	–	–	Not filed
Snowden Capital Advisors LLC	–	–	–	–	Not filed
Robocap Asset Management Ltd	–	–	–	–	Not filed
The PNC Financial Services Group, Inc.	–	–	–	–	Not filed
Adams Wealth Management	–	–	–	–	Not filed
Farther Finance Advisors, LLC	–	–	–	–	Not filed
Ogborne Capital Management, LLC	–	–	–	–	Not filed
Independent Solutions Wealth Management, LLC	–	–	–	–	Not filed
E Fund Management Co., Ltd.	–	–	–	–	Not filed
Pinebridge Investments LLC	–	–	–	–	Not filed
Fedenia Advisers LLC	–	–	–	–	Not filed
Northern Trust Corp	–	–	–	–	Not filed
FORA Capital, LLC	–	–	–	–	Not filed
Aft, Forsyth & Company, Inc.	–	–	–	–	Not filed
Hoey Investments, Inc	–	–	–	–	Not filed
Corps Capital Advisors, LLC	–	–	–	–	Not filed
China Universal Asset Management Co., Ltd.	–	–	–	–	Not filed
Elevation Advisory Partners LLC	–	–	–	–	Not filed
Ascent Wealth Partners, LLC	–	–	–	–	Not filed
Toronto Dominion Bank	–	–	–	–	Not filed
Scotia Capital Inc.	–	–	–	–	Not filed
Phoenix Holdings Ltd.	–	–	–	–	Not filed
BCJ Capital Management, LLC	–	–	–	–	Not filed
Baird Financial Group, Inc.	–	–	–	–	Not filed
Entropy Technologies, LP	–	–	–	–	Not filed
Balyasny Asset Management LLC	–	–	–	–	Not filed
Lazard Freres Gestion S.A.S.	–	–	–	–	Not filed
Nuveen, LLC	–	–	–	–	Not filed
Leonteq Securities AG	–	–	–	–	Not filed
Avenir Tech Ltd	–	–	–	–	Not filed
Capital Group Investment Management Pte. Ltd.	–	–	–	–	Not filed
MYDA Advisors LLC	–	–	–	–	Not filed
PKO Investment Management Joint-Stock Co	–	–	–	–	Not filed
Simplicity Wealth,LLC	–	–	–	–	Not filed
NLB Skladi, upravljanje premozenja, d.o.o.	–	–	–	–	Not filed
Dakota Wealth Management	–	–	–	–	Not filed
Centaurus Financial, Inc.	–	–	–	–	Not filed
GTS Securities LLC	–	–	–	–	Not filed
Investors Towarzystwo Funduszy Inwestycyjnych Spolka Akcyjna	–	–	–	–	Not filed
Private Advisor Group, LLC	–	–	–	–	Not filed
Factory Mutual Insurance Co	–	–	–	–	Not filed
Asset Management One Co.,Ltd.	–	–	–	–	Not filed
Rakuten Securities, Inc.	–	–	–	–	Not filed