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ARM in the 13F filings

Arm Holdings PLC · CUSIP 042068205

Sector · SemiconductorsTheme · AI infrastructure and semiconductors· L3VLUP-definedTheme · Semiconductors
Quarter
Q3 2026 · early filersQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023
Quarter end
31 Dec 2025
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 23 Jan 2026
Managers listing it
29
at least, of 95 tracked, among listed positions
Comparable managers
92
filed both Q3 2025 and Q4 2025; 11 listed it in both
Shares listed
24,550,934
combined, among listed positions
Reported value
$2.7bn
combined, at the quarter end

Among the 92 comparable managers: 19 buyers (opened or added shares) and 15 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +5,049,416.

Managers listing ARM in Q4 2025

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q3 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

29 of 29 holders

ActionFiling
Invesco Ltd5,535,093$605m0.06%Added+3,762,97019 Feb 2026 (the filing on sec.gov)
Coatue Management LLC2,300,000$251m0.63%Added+40,17415 May 2026 (the filing on sec.gov)
Wellington Management Group LLP2,149,159$235munder 0.1%Added+633,00917 Feb 2026 (the filing on sec.gov)
Susquehanna International Group LLP1,880,816$206munder 0.1%Added+1,659,76317 Feb 2026 (the filing on sec.gov)
Capital Research Global Investors1,805,110$197munder 0.1%Added+86,97811 Feb 2026 (the filing on sec.gov)
Fidelity (FMR LLC)1,730,574$189munder 0.1%Added+233,52017 Feb 2026 (the filing on sec.gov)
Two Sigma Investments LP1,259,155$138m0.19%Added+1,049,74417 Feb 2026 (the filing on sec.gov)
Artisan Partners LP1,243,137$136m0.20%Added+382,51217 Feb 2026 (the filing on sec.gov)
Capital World Investors1,165,776$127munder 0.1%Trimmed-3,606,81611 Feb 2026 (the filing on sec.gov)
Marshall Wace LLP1,128,252$123m0.11%Added+309,61513 Feb 2026 (the filing on sec.gov)
Two Sigma Advisers LP712,100$78m0.15%Added+557,70017 Feb 2026 (the filing on sec.gov)
Baillie Gifford & Co612,528$67m0.06%Trimmed-28,34923 Jan 2026 (the filing on sec.gov)
Citadel Advisors LLC506,715$55munder 0.1%Added+436,08017 Feb 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc477,040$52munder 0.1%Trimmed-46,37417 Feb 2026 (the filing on sec.gov)
Renaissance Technologies LLC473,600$52m0.08%Trimmed-21,80012 Feb 2026 (the filing on sec.gov)
Voloridge Investment Management LLC343,576$38m0.13%Newnew17 Feb 2026 (the filing on sec.gov)
Bridgewater Associates LP326,320$36m0.13%Newnew13 Feb 2026 (the filing on sec.gov)
Millennium Management LLC143,691$16munder 0.1%Added+20,09117 Feb 2026 (the filing on sec.gov)
Neuberger Berman Group LLC132,307$14munder 0.1%Trimmed-20,93027 Oct 2026 (the filing on sec.gov)
D. E. Shaw & Co.128,215$14munder 0.1%Added+108,06517 Feb 2026 (the filing on sec.gov)
Man Group PLC125,226$14munder 0.1%Trimmed-38,17117 Feb 2026 (the filing on sec.gov)
Arrowstreet Capital LP72,508$7.9munder 0.1%Newnew13 Feb 2026 (the filing on sec.gov)
Jane Street Group LLC62,361$6.8munder 0.1%Trimmed-108,27412 Feb 2026 (the filing on sec.gov)
Acadian Asset Management LLC62,329$6.8munder 0.1%Added+40,61810 Feb 2026 (the filing on sec.gov)
Woodline Partners LP61,806$6.8munder 0.1%Newnew17 Feb 2026 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q3 2025 to Q4 2025, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (4)

Exited (5)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
10 in Q3 2024 to 17 in Q2 2026

Tracked managers listing it, at least.

05101520Q3 2023Q1 2024Q3 2024Q1 2025Q3 2025Q1 2026Q2 2026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
ARM by quarter
QuarterHoldersReported valueBuyersSellers
Q3 202319$836mn.a.n.a.
Q4 20235$413m311
Q1 202412$1.7bn100
Q2 202411$1.6bn110
Q3 202410$1.1bn45
Q4 202411$984m64
Q1 202511$1.1bn57
Q2 20259$2.5bn73
Q3 202512$2.1bn86
Q4 202513$2.1bn1915
Q1 202613$2.9bn1716
Q2 202617$12.2bn1519

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

ARM and NVDA →ARM and AVGO →ARM and MU →Choose a stock to compare with ARM →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own ARM, latest filings →Back to the 13F Explorer →