Arm Holdings plc
Ownership
Ownership Structure
Who owns Arm Holdings plc (ARM)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 13.4% of the shares are freely tradable; institutional investors hold 95.4%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| DZ BANK AG Deutsche Zentral-Genossenschaftsbank Frankfurt am Main | 0.88 | 9,376,278 | +339.9 | 03/31/2026 |
| Amvescap Plc. | 0.55 | 5,883,125 | +6.3 | 03/31/2026 |
| Morgan Stanley - Brokerage Accounts | 0.42 | 4,463,815 | +18.0 | 03/31/2026 |
| Capital World Investors | 0.41 | 4,330,875 | +0.0 | 06/30/2026 |
| FMR Inc | 0.23 | 2,449,030 | +41.5 | 03/31/2026 |
| Capital Research Global Investors | 0.22 | 2,401,422 | -43.1 | 06/30/2026 |
| Van Eck Associates Corporation | 0.21 | 2,212,884 | +4,292.3 | 03/31/2026 |
| Capital Research & Mgmt Co - Division 3 | 0.19 | 2,050,241 | +75.9 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Invesco QQQ Trust | 0.85 | 9,120,982 | +0.5 | 08/31/2026 |
| VanEck Semiconductor ETF | 0.25 | 2,637,124 | -0.2 | 08/29/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Haas Rene A. | Chief Executive Officer | 338,666 | 98,111,540 $ | Aug 31, 2026 | direct |
| Child Jason | Chief Financial Officer | 153,442 | 44,452,147 $ | Sep 21, 2026 | direct |
| Bartels Laura Kathleen | Chief Accounting Officer | 12,960 | 3,754,512 $ | Aug 17, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 21, 2026 | Child Jason | Chief Financial Officer | Sell | 10,400 | 300.00 | 3,120,000 |
| Aug 31, 2026 | Haas Rene A. | Chief Executive Officer | Other | 64 | 108.33 | 6,933 |
| Aug 27, 2026 | Child Jason | Chief Financial Officer | Sell | 10,400 | 255.33 | 2,655,432 |
| Aug 17, 2026 | Bartels Laura Kathleen | Chief Accounting Officer | Other | 856 | 271.43 | 232,344 |
| Aug 17, 2026 | Bartels Laura Kathleen | Chief Accounting Officer | Other | 819 | – | – |
| Aug 17, 2026 | Bartels Laura Kathleen | Chief Accounting Officer | Other | 862 | – | – |
| Apr 22, 2026 | Jason Child | CFO | Sell | 21,280 | 180.00 | 3,830,400 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: September 30, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.