Arm Holdings
✦ Quant Ownership Signal how this is computed
- The number of reporting institutions increased by 4 in the most recent period (2026/Q3).
- Total institutional ownership (as a % of shares) was little changed.
Institutional ownership
- Held by institutions
- 95.98% -0.02pp
- Institutions
- 1,139 +4
- As of
- 2026/Q3 vs. prior period
Ownership vs. money flow
DivergingInstitutions trimmed shares last reporting period, and the stock has seen net inflows in main-fund flow over the last 20 trading sessions - the two are pointing in different directions.
Institutional ownership changes are reported quarterly with a lag; fund-flow data is daily. Treat this as a directional cross-check, not a precise timing signal.
Holder types
Top holders as of 2026-05-21
Bar length is relative to the largest holder shown here, not to 100% of the company.
Insiders
50 filings tracked · 25 buys · 25 sells
| Name | Role | Stake |
|---|---|---|
| SoftBank Group Corp. | -- | 86.39% |
| Rene Anthony Andrada Haas | Chief Executive Officer | 0.04% |
| Jason Child | Chief Financial Officer | 0.01% |
| Ronald Fisher | Director | 0.00% |
| Richard Grisenthwaite | Executive VP & Chief Architect | 0.00% |
| William Abbey | Executive Vice President | 0.00% |
| Karen Dykstra | Independent Director | 0.00% |
| Laura Bartels | Chief Accounting Officer | 0.00% |
| Paul Jacobs | Independent Director | 0.00% |
| Young Sohn | Independent Director | 0.00% |
| Rosemary Schooler | Independent Director | 0.00% |
Insider transactions most recent Form 4 filings
| Date | Name | Role | Type | Shares | Price |
|---|---|---|---|---|---|
| 2026-09-20 | Jason Child | Chief Financial Officer | Automatic Disposition | -10,400 | $300.00 |
| 2026-09-13 | William Abbey | Executive Vice President | Other Derivative Acquisition | +17,288 | -- |
| 2026-09-08 | Rene Anthony Andrada Haas | Chief Executive Officer | Other Derivative Acquisition | +425,000 | -- |
| 2026-08-30 | Rene Anthony Andrada Haas | Chief Executive Officer | Other Acquisition | +64 | $108.33 |
| 2026-08-26 | Jason Child | Chief Financial Officer | Automatic Disposition | -10,400 | $255.33 |
| 2026-08-16 | Laura Bartels | Chief Accounting Officer | Derivative Exercise and Sale | -856 | $271.43 |
| 2026-08-16 | Laura Bartels | Chief Accounting Officer | Derivative Exercise and Retained | +825 | -- |
| 2026-08-06 | Jeffrey Sine | Director | Other Disposition | -9,572 | -- |
| 2026-06-01 | Laura Bartels | Chief Accounting Officer | Private Disposition | -11,306 | $392.70 |
| 2026-05-31 | William Abbey | Executive Vice President | Private Disposition | -6,566 | $383.73–415.52 |
| 2026-05-27 | William Abbey | Executive Vice President | Private Disposition | -4,200 | $343.81 |
| 2026-05-21 | William Abbey | Executive Vice President | Private Disposition | -2,300 | $305.82 |
| 2026-05-20 | William Abbey | Executive Vice President | Private Disposition | -4,655 | $287.03 |
| 2026-05-20 | Charlotte Eaton | Chief Human Resources Officer | Private Disposition | -7,100 | $252.25–282.77 |
| 2026-05-20 | Charlotte Eaton | Chief Human Resources Officer | Private Disposition | -7,805 | $288.10–291.08 |
| 2026-05-19 | Jason Child | Chief Financial Officer | Automatic Disposition | -31,920 | $226.54 |
| 2026-05-19 | William Abbey | Executive Vice President | Private Disposition | -15,956 | $224.14–257.18 |
| 2026-05-19 | Charlotte Eaton | Chief Human Resources Officer | Intent to Sell (Form 144) | -3,100 | $252.25 |
| 2026-05-18 | Spencer Collins | Chief Legal Officer | Private Disposition | -40,941 | $215.00 |
| 2026-05-17 | Richard Grisenthwaite | Executive VP & Chief Architect | Private Disposition | -24,339 | $209.15 |
Form 4 filings, most recent per company. "Other Derivative Acquisition" rows are mostly RSU/option vesting, not open-market buying - the Type column says which.
Quote time 2026-10-16 10:10:06 · For reference only, not investment advice and not tailored to your situation.
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