Ranked by reported Q2 2026 13F market value
Share of total reported institutional value in ARM held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 19.2M | $6.80B | +15.7% | 1.802% | 0.53% |
| 2 | Invesco Ltd. | 12.8M | $4.54B | +337.3% | 1.205% | 0.36% |
| 3 | JANE STREET GROUP, LLC | 11.5M | $4.07B | +28.7% | 1.079% | 0.34% |
| 4 | CITADEL ADVISORS LLC | 8.8M | $3.13B | +35.2% | 0.830% | 0.18% |
| 5 | DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt | 6.5M | $2.31B | -33.8% | 0.611% | 1.77% |
| 6 | GOLDMAN SACHS GROUP INC | 4.9M | $1.74B | +18.9% | 0.460% | 0.15% |
| 7 | Capital World Investors | 4.3M | $1.54B | — | 0.407% | 0.18% |
| 8 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 4.1M | $1.45B | +333.2% | 0.385% | 0.64% |
| 9 | FMR LLC | 4.1M | $1.44B | +65.9% | 0.382% | 0.06% |
| 10 | BARCLAYS PLC | 3.9M | $1.38B | -20.1% | 0.367% | 0.27% |
| 11 | VAN ECK ASSOCIATES CORP | 2.6M | $922.1M | +17.5% | 0.244% | 0.56% |
| 12 | Walleye Trading LLC | 2.5M | $885.1M | -33.1% | 0.235% | 1.01% |
| 13 | Capital Research Global Investors | 2.4M | $851.4M | -43.1% | 0.226% | 0.12% |
| 14 | ALKEON CAPITAL MANAGEMENT LLC | 2.2M | $784.3M | — | 0.208% | 1.06% |
| 15 | MORGAN STANLEY | 2.2M | $765.3M | -51.6% | 0.203% | 0.04% |
| 16 | PEAK6 LLC | 2.1M | $752.3M | -26.5% | 0.199% | 1.55% |
| 17 | UBS Group AG | 2.1M | $734.3M | -12.3% | 0.195% | 0.09% |
| 18 | Capital International Investors | 2.1M | $726.8M | +75.9% | 0.193% | 0.15% |
| 19 | BlackRock, Inc. | 2.0M | $721.9M | +63.8% | 0.191% | 0.01% |
| 20 | FRANKLIN RESOURCES INC | 2.0M | $717.7M | +30.5% | 0.190% | 0.16% |
| 21 | Alphabet Inc. | 2.0M | $695.2M | 0.0% | 0.184% | 0.70% |
| 22 | SCHRODER INVESTMENT MANAGEMENT GROUP | 1.9M | $664.2M | -51.0% | 0.176% | 0.47% |
| 23 | Altimeter Capital Management, LP | 1.6M | $582.2M | -4.3% | 0.154% | 5.92% |
| 24 | ROYAL BANK OF CANADA | 1.2M | $442.5M | +158.9% | 0.117% | 0.07% |
| 25 | BANK OF AMERICA CORP /DE/ | 1.2M | $432.1M | +72.6% | 0.114% | 0.03% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in ARM — a direct measure of their conviction.
Filings activity in ARM during Q2 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q2 2026 | 981 | +30% | 14.61% | +1.41 pp | $54.35B | +165% |
| Q1 2026 | 754 | +16% | 13.20% | 0.51 pp | $20.49B | +31% |
| Q4 2025 | 649 | 0.9% | 13.71% | +0.55 pp | $15.63B | 19% |
| Q3 2025 | 655 | +1.4% | 13.16% | +2.74 pp | $19.36B | +11% |
| Q2 2025 | 646 | +7.8% | 10.42% | +1.91 pp | $17.51B | +87% |
| Q1 2025 | 599 | 1.5% | 8.51% | +0.40 pp | $9.38B | 8.5% |
| Q4 2024 | 608 | +4.5% | 8.11% | 0.30 pp | $10.25B | 15% |
| Q3 2024 | 582 | — | 8.41% | — | $12.02B | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying ARM stock.
Based on Q2 2026 13F filings, institutional ownership of Arm Holdings plc American Depositary Shares stands at 14.6%, held across 981 reporting institutions.
SUSQUEHANNA INTERNATIONAL GROUP, LLP is the largest reported institutional holder of ARM, with approximately 19,171,721 shares worth $6.80B as of Q2 2026.
Yes — 4 widely-followed marquee investors appear among the top 25 institutional holders of ARM, including SUSQUEHANNA INTERNATIONAL GROUP, LLP, JANE STREET GROUP, LLC, CITADEL ADVISORS LLC, Altimeter Capital Management, LP.
Our composite Smart Money Score for ARM is 88 out of 100 (Strong Smart Money). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
300 institutions opened new positions in ARM during Q2 2026, while 81 fully exited. 598 added to existing positions and 54 trimmed.
ARM institutional ownership rose by 1.41 percentage points quarter-over-quarter, with a net change of +227 holders.
The top 10 institutions account for 52.2% of all reported 13F value in ARM, and the top 25 account for 71.9%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Arm Holdings plc American Depositary Shares (ARM) Institutional Ownership