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
Defender Capital, LLC.	20,459	$5.93M	1.86%	−122−0.6%	Reduced
Eastern Bank	572	$165.7K	0.00%	00.0%	Unchanged
CX Institutional	201	$58.0K	0.00%	+201	New
Versant Capital Management, Inc	51	$14.8K	0.00%	00.0%	Unchanged
Roxbury Financial LLC	0	$0	0.00%	−46−100.0%	Sold out
Invesco Ltd.	–	–	–	–	Not filed
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main	–	–	–	–	Not filed
Capital World Investors	–	–	–	–	Not filed
Arrowstreet Capital, Limited Partnership	–	–	–	–	Not filed
FMR LLC	–	–	–	–	Not filed
Goldman Sachs Group Inc	–	–	–	–	Not filed
Van Eck Associates Corp	–	–	–	–	Not filed
Capital Research Global Investors	–	–	–	–	Not filed
Morgan Stanley	–	–	–	–	Not filed
Capital International Investors	–	–	–	–	Not filed
BlackRock, Inc.	–	–	–	–	Not filed
Franklin Resources Inc	–	–	–	–	Not filed
Alphabet Inc.	–	–	–	–	Not filed
Schroder Investment Management Group	–	–	–	–	Not filed
UBS Group AG	–	–	–	–	Not filed
Altimeter Capital Management, LPSuperinvestorAltimeter Capital	–	–	–	–	Not filed
Susquehanna International Group, LLP	–	–	–	–	Not filed
Bank of America Corp	–	–	–	–	Not filed
JPMorgan Chase & Co	–	–	–	–	Not filed
Lansdowne Partners (UK) LLP	–	–	–	–	Not filed
Royal Bank of Canada	–	–	–	–	Not filed
Evergreen Quality Fund GP, Ltd.	–	–	–	–	Not filed
Mubadala Investment Co PJSC	–	–	–	–	Not filed
Employees Provident Fund Board	–	–	–	–	Not filed
Citigroup Inc	–	–	–	–	Not filed
Robeco Schweiz AG	–	–	–	–	Not filed
Wellington Management Group LLP	–	–	–	–	Not filed
Loomis Sayles & Co L P	–	–	–	–	Not filed
Price T Rowe Associates Inc	–	–	–	–	Not filed
Barclays PLC	–	–	–	–	Not filed
Two Sigma Investments, LP	–	–	–	–	Not filed
Sands Capital Management, LLC	–	–	–	–	Not filed
Mirae Asset Global Investments Co., Ltd.	–	–	–	–	Not filed
Altshuler Shaham Ltd	–	–	–	–	Not filed
BNP Paribas Arbitrage, SA	–	–	–	–	Not filed
Hyperion Asset Management Ltd	–	–	–	–	Not filed
Rathbone Brothers plc	–	–	–	–	Not filed
Wells Fargo & Company	–	–	–	–	Not filed
Rafferty Asset Management, LLC	–	–	–	–	Not filed
Allianz Asset Management GmbH	–	–	–	–	Not filed
Gilder Gagnon Howe & Co LLC	–	–	–	–	Not filed
Baillie Gifford & Co	–	–	–	–	Not filed
ProShare Advisors LLC	–	–	–	–	Not filed
Congress Asset Management Co	–	–	–	–	Not filed
Clear Street Group Inc.	–	–	–	–	Not filed
Menora Mivtachim Holdings Ltd.	–	–	–	–	Not filed
Sustainable Growth Advisers, LP	–	–	–	–	Not filed
Voya Investment Management LLC	–	–	–	–	Not filed
Toroso Investments, LLC	–	–	–	–	Not filed
Raymond James Financial Inc	–	–	–	–	Not filed
Ameriprise Financial Inc	–	–	–	–	Not filed
State Street Corp	–	–	–	–	Not filed
BNP PARIBAS ASSET MANAGEMENT Holding S.A.	–	–	–	–	Not filed
First Trust Advisors LP	–	–	–	–	Not filed
American Century Companies Inc	–	–	–	–	Not filed
Pacific Heights Asset Management LLC	–	–	–	–	Not filed
LPL Financial LLC	–	–	–	–	Not filed
Neuberger Berman Group LLC	–	–	–	–	Not filed
Swedbank AB	–	–	–	–	Not filed
Penserra Capital Management LLC	–	–	–	–	Not filed
Defiance ETFs, LLC	–	–	–	–	Not filed
Mirae Asset Global ETFs Holdings Ltd.	–	–	–	–	Not filed
Legal & General Group Plc	–	–	–	–	Not filed
Artisan Partners Limited Partnership	–	–	–	–	Not filed
Mark Asset Management LP	–	–	–	–	Not filed
Marex Group plc	–	–	–	–	Not filed
1832 Asset Management L.P.	–	–	–	–	Not filed
Tran Capital Management, L.P.	–	–	–	–	Not filed
Bank of New York Mellon Corp	–	–	–	–	Not filed
Primecap Management Co	–	–	–	–	Not filed
Nordea Investment Management AB	–	–	–	–	Not filed
NZS Capital, LLC	–	–	–	–	Not filed
Kayne Anderson Rudnick Investment Management LLC	–	–	–	–	Not filed
Royal London Asset Management Ltd	–	–	–	–	Not filed
Jones Financial Companies LLLP	–	–	–	–	Not filed
Dock Street Asset Management Inc	–	–	–	–	Not filed
Whittier Trust Co	–	–	–	–	Not filed
SEI Investments Co	–	–	–	–	Not filed
Munro Partners	–	–	–	–	Not filed
Colony Group, LLC	–	–	–	–	Not filed
Susquehanna Fundamental Investments, LLC	–	–	–	–	Not filed
National Bank of Canada	–	–	–	–	Not filed
Victory Capital Management Inc	–	–	–	–	Not filed
Deutsche Bank AG	–	–	–	–	Not filed
Silvant Capital Management LLC	–	–	–	–	Not filed
Citadel Advisors LLC	–	–	–	–	Not filed
Rockefeller Capital Management L.P.	–	–	–	–	Not filed
Tensor Edge Capital, LLC	–	–	–	–	Not filed
UBS Asset Management Americas Inc	–	–	–	–	Not filed
AustralianSuper Pty Ltd	–	–	–	–	Not filed
Oriental Harbor Investment Fund	–	–	–	–	Not filed
Jupiter Topco LLC	–	–	–	–	Not filed
Pacer Advisors, Inc.	–	–	–	–	Not filed
Advisor Group Holdings, Inc.	–	–	–	–	Not filed
Ci Investments Inc.	–	–	–	–	Not filed