Arm · ownership
Who owns Arm?
Invesco Ltd. is the largest 13F holder: 13.0% of 13F-reported shares calc.
959 institutions report 98.5M Arm shares in Form 13F, as of quarter end Jun 30, 2026; +6.9M shares vs Mar 31, 2026.
- Invesco Ltd.13.0%12.8M shares · +6.9M vs prior quarter (up) · 13F filed Aug 14, 2026
- DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main6.6%6.5M shares · −2.9M vs prior quarter (down) · 13F filed Aug 14, 2026
- Capital World Investors4.4%4.3M shares · +4.3M vs prior quarter (new position) · 13F filed Aug 12, 2026
- ARROWSTREET CAPITAL, LIMITED PARTNERSHIP4.2%4.1M shares · +3.1M vs prior quarter (up) · 13F filed Aug 13, 2026
- FMR LLC4.1%4.1M shares · +1.6M vs prior quarter (up) · 13F filed Aug 13, 2026
- GOLDMAN SACHS GROUP INC3.0%2.9M shares · +1.3M vs prior quarter (up) · 13F filed Aug 14, 2026
- VAN ECK ASSOCIATES CORP2.6%2.6M shares · +388K vs prior quarter (up) · 13F filed Aug 14, 2026
- Capital Research Global Investors2.4%2.4M shares · −1.8M vs prior quarter (down) · 13F filed Aug 12, 2026
- MORGAN STANLEY2.2%2.2M shares · −2.3M vs prior quarter (down) · 13F filed Aug 13, 2026
- Capital International Investors2.1%2.1M shares · +885K vs prior quarter (up) · 13F filed Aug 12, 2026
- BlackRock, Inc.2.1%2.0M shares · +793K vs prior quarter (up) · 13F filed Aug 7, 2026
- FRANKLIN RESOURCES INC2.1%2.0M shares · +473K vs prior quarter (up) · 13F filed Aug 13, 2026
- Alphabet Inc.2.0%2.0M shares · 0 vs prior quarter (unchanged) · 13F filed Aug 7, 2026
- SCHRODER INVESTMENT MANAGEMENT GROUP1.9%1.9M shares · −2.0M vs prior quarter (down) · 13F filed Aug 13, 2026
- UBS Group AG1.7%1.6M shares · −28K vs prior quarter (down) · 13F filed Aug 13, 2026
- Altimeter Capital Management, LP1.7%1.6M shares · −73K vs prior quarter (down) · 13F filed Aug 14, 2026
- SUSQUEHANNA INTERNATIONAL GROUP, LLP1.7%1.6M shares · +847K vs prior quarter (up) · 13F filed Aug 14, 2026
- BANK OF AMERICA CORP /DE/1.2%1.2M shares · +513K vs prior quarter (up) · 13F filed Aug 14, 2026
- JPMORGAN CHASE & CO1.2%1.2M shares · +1.0M vs prior quarter (up) · 13F filed Aug 12, 2026
- LANSDOWNE PARTNERS (UK) LLP1.1%1.1M shares · +137K vs prior quarter (up) · 13F filed Aug 14, 2026
Share of 13F-reported shares, not of shares outstanding. 13F covers managers with over $100M in US equities; it is not a full shareholder list.
Method and sources
Source: SEC Form 13F data sets (bulk). Each row links to the holder’s own 13F-HR filing. Holder names exactly as filed; one group can file under several names and CIKs (for example two Vanguard entities), and they are listed separately, as filed.
% = the holder’s shares ÷ all shares reported in 13F filings for this company and quarter (calculated by Hollsteen). This is not a share of shares outstanding. Change = shares vs the same filer’s 13F for the prior quarter (Mar 31, 2026).
Erroneous filings and rows are handled by a fixed rule set (restatements replace originals; non-equity rows and implausible rows excluded): 8 erroneous filings excluded or replaced this quarter. No market values are shown.
SEC filings only. No price or market data.
Who holds more than 5%?
No current 13D/13G filing above 5%
Schedule 13D/13G filings (1) ›
- SOFTBANK GROUP CORP. 89.8%
stale filed Feb 14, 2024, as of Sep 13, 2023: older than 18 months, not a current holding · 13G filed Feb 14, 2024
Method and sources
Schedule 13D (active) and 13G (passive) are filed by holders of more than 5% of a class. The percentage is the holder’s own cover-page “percent of class”. A filing older than 18 months (filed before 2025-04-17) is marked stale and is never shown as a current holding. Data as of Oct 15, 2026.
SEC filings only.
Are insiders buying or selling?
0 open-market purchases, 41 sales in 12 months
Form 4, Oct 15, 2025 – Oct 15, 2026 · 0 shares bought, 323,715 shares sold (net −324K) · as of Oct 15, 2026
Latest 25 of 89 Form 4 transactions ›
| Date | Insider (as filed) | Transaction | Shares | Held after |
|---|---|---|---|---|
| Sep 21, 2026 | Child Jason · Chief Financial Officer | Open-market sale · 10b5-1 | 10,400 disposed | 153,442 |
| Aug 31, 2026 | Haas Rene A. · Director; Chief Executive Officer | Grant or award | 64 acquired | 338,666 |
| Aug 27, 2026 | Child Jason · Chief Financial Officer | Open-market sale · 10b5-1 | 10,400 disposed | 163,832 |
| Aug 17, 2026 | Bartels Laura Kathleen · Chief Accounting Officer | Option exercise / RSU conversion | 862 acquired | 12,997 |
| Aug 17, 2026 | Bartels Laura Kathleen · Chief Accounting Officer | Option exercise / RSU conversion | 819 acquired | 13,816 |
| Aug 17, 2026 | Bartels Laura Kathleen · Chief Accounting Officer | Tax withholding | 856 disposed | 12,960 |
| Aug 7, 2026 | Sine Jeffrey · Director | Gift | 9,572 disposed | 0 |
| Jun 2, 2026 | Bartels Laura Kathleen · Chief Accounting Officer | Open-market sale | 11,306 disposed | 12,135 |
| Jun 1, 2026 | Abbey William · Chief Commercial Officer | Open-market sale | 2,644 disposed | 24,485 |
| Jun 1, 2026 | Abbey William · Chief Commercial Officer | Open-market sale | 3,922 disposed | 20,563 |
| May 28, 2026 | Abbey William · Chief Commercial Officer | Open-market sale | 4,200 disposed | 27,129 |
| May 22, 2026 | Abbey William · Chief Commercial Officer | Open-market sale | 2,300 disposed | 31,329 |
| May 21, 2026 | Abbey William · Chief Commercial Officer | Open-market sale | 4,655 disposed | 33,629 |
| May 21, 2026 | Eaton Charlotte Claire · Chief People Officer | Open-market sale | 2,805 disposed | 5,000 |
| May 21, 2026 | Eaton Charlotte Claire · Chief People Officer | Open-market sale | 5,000 disposed | 0 |
| May 21, 2026 | Eaton Charlotte Claire · Chief People Officer | Open-market sale | 4,000 disposed | 7,805 |
| May 20, 2026 | Abbey William · Chief Commercial Officer | Open-market sale | 5,069 disposed | 38,284 |
| May 20, 2026 | Eaton Charlotte Claire · Chief People Officer | Open-market sale | 3,100 disposed | 11,805 |
| May 20, 2026 | Child Jason · Chief Financial Officer | Open-market sale · 10b5-1 | 31,920 disposed | 174,232 |
| May 19, 2026 | Collins Spencer · Chief Legal Officer | Open-market sale | 40,941 disposed | 0 |
| May 19, 2026 | Abbey William · Chief Commercial Officer | Open-market sale | 10,887 disposed | 43,353 |
| May 18, 2026 | Grisenthwaite Richard Roy · Chief Architect | Open-market sale | 24,339 disposed | 0 |
| May 15, 2026 | Bartels Laura Kathleen · Chief Accounting Officer | Option exercise / RSU conversion | 3,588 acquired | 23,654 |
| May 15, 2026 | Bartels Laura Kathleen · Chief Accounting Officer | Option exercise / RSU conversion | 862 acquired | 24,516 |
| May 15, 2026 | Bartels Laura Kathleen · Chief Accounting Officer | Option exercise / RSU conversion | 2,308 acquired | 26,824 |
Method and sources
Form 4 filings (not 4/A), table I. Open market = transaction codes P (purchase) and S (sale); grants, option exercises, tax withholding and gifts are listed but not counted as buys or sells. Shares and share counts only, as filed; Hollsteen shows no per-share prices. Data is an export, as of Oct 15, 2026, not live.
SEC filings only.