Supply breakdown
Shares as of Oct 15, 2026| Category | Shares | % | Value | Status |
|---|---|---|---|---|
| Circulating | 374.32M | 100.0% | $239.09B | Estimated |
| Free float | - | - | - | Unavailable |
| Insider-held, unrestricted | - | - | - | Unavailable |
| Locked team funds | 0 | 0.0% | $0 | Unavailable |
| Other restricted | 0 | 0.0% | $0 | Unavailable |
| Total outstanding | 374.32M | 100.0% | $239.09B | Verified |
| Ownership views (overlap the categories above, never added) | ||||
| Institutional holdings (13F) | 323.18M | 86.3% | $206.42B | Estimated |
| Insider-held, all (Forms 3, 4, 5) | - | - | - | Unavailable |
Institutional and insider holdings can include both tradable and locked shares, so they are shown for reference and never added to the total. Check: circulating + locked team + other restricted = total outstanding reconciles.
Valuation
- Traditional$239.09B
- Fully diluted$250.58B
- Circulating$239.09B
- Free float-
- Locked team value$0
- Other restricted value$0
Locked and restricted shares
Not reviewed yet.
Institutional holders
| Holder | Shares | % of total |
|---|---|---|
| BlackRock, Inc. | 32.95M | 8.80% |
| FMR LLC | 25.98M | 6.94% |
| VANGUARD CAPITAL MANAGEMENT LLC | 22.51M | 6.01% |
| JPMORGAN CHASE & CO | 17.01M | 4.54% |
| Capital World Investors | 16.60M | 4.43% |
| STATE STREET CORP | 16.28M | 4.35% |
| Invesco Ltd. | 14.44M | 3.86% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 13.11M | 3.50% |
| GEODE CAPITAL MANAGEMENT, LLC | 8.41M | 2.25% |
| MORGAN STANLEY | 8.15M | 2.18% |
Insiders
Forms 3, 4 and 5Form 4 aggregation pending
Share classes
| Class | Listing | Shares outstanding | As of |
|---|---|---|---|
| Common stock | WDC on Nasdaq | 374,323,269 | Oct 15, 2026 |
Notes and sources
- WESTERN DIGITAL CORP 10-Q for period ended 2026-10-02, Cover page (0001628280-26-066933)
- SEC public float (non-affiliates): $47.69B as of Jan 2, 2026, from the 10-K cover. It is a dollar value at a past date, not circulating supply.