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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 Mar 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 8 May 2026
Managers listing it
29
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q4 2025 and Q1 2026; 8 listed it in both
Shares listed
24,762,449
combined, among listed positions
Reported value
$3.7bn
combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 17 buyers (opened or added shares) and 16 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +923,615.

Managers listing ARM in Q1 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 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 Ltd5,883,125$890m0.09%Added+348,03212 May 2026 (the filing on sec.gov)
Capital Research Global Investors4,218,729$638m0.10%Added+2,413,61913 May 2026 (the filing on sec.gov)
Fidelity (FMR LLC)2,449,030$370munder 0.1%Added+718,45615 May 2026 (the filing on sec.gov)
Altimeter Capital Management LP1,715,440$260m4.55%Newnew15 May 2026 (the filing on sec.gov)
Wellington Management Group LLP1,655,703$250munder 0.1%Trimmed-493,45615 May 2026 (the filing on sec.gov)
Arrowstreet Capital LP945,152$143m0.08%Added+872,64414 May 2026 (the filing on sec.gov)
Balyasny Asset Management LLC924,723$140m0.18%Added+877,44915 May 2026 (the filing on sec.gov)
Susquehanna International Group LLP780,619$118munder 0.1%Trimmed-1,100,19715 May 2026 (the filing on sec.gov)
Janus Henderson Group Ltd767,534$116m0.06%Newnew18 May 2026 (the filing on sec.gov)
Artisan Partners LP669,054$101m0.16%Trimmed-574,08313 May 2026 (the filing on sec.gov)
Baillie Gifford & Co611,897$93m0.09%Trimmed-6318 May 2026 (the filing on sec.gov)
Bridgewater Associates LP593,361$90m0.40%Added+267,04115 May 2026 (the filing on sec.gov)
Two Sigma Investments LP580,038$88m0.07%Trimmed-679,11715 May 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc493,865$75munder 0.1%Added+16,82515 May 2026 (the filing on sec.gov)
Whale Rock Capital Management LLC452,384$68m0.88%Newnew15 May 2026 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC345,322$52m0.37%Newnew15 May 2026 (the filing on sec.gov)
Jane Street Group LLC315,527$48munder 0.1%Added+253,16612 May 2026 (the filing on sec.gov)
D. E. Shaw & Co.306,620$46munder 0.1%Added+178,40515 May 2026 (the filing on sec.gov)
Citadel Advisors LLC288,820$44munder 0.1%Trimmed-217,89515 May 2026 (the filing on sec.gov)
Millennium Management LLC270,164$41munder 0.1%Added+126,47315 May 2026 (the filing on sec.gov)
AllianceBernstein LP217,999$24munder 0.1%Added+192,87115 May 2026 (the filing on sec.gov)
Neuberger Berman Group LLC115,225$17munder 0.1%Trimmed-17,08227 Oct 2026 (the filing on sec.gov)
Man Group PLC99,510$15munder 0.1%Trimmed-25,71615 May 2026 (the filing on sec.gov)
Verition Fund Management LLC22,890$3.5munder 0.1%Added+14,82215 May 2026 (the filing on sec.gov)
Renaissance Technologies LLC16,900$2.6munder 0.1%Trimmed-456,70014 May 2026 (the filing on sec.gov)
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Largest increases and reductions, by shares

Q4 2025 to Q1 2026, 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 (5)

Exited (4)

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 →