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Of the 20 tracked institutions holding WDC, 14 have a 3-year clone track record — 13 of them beat the S&P. Average holder's clone alpha: +6.3pt. It's a gauge of who owns the name, not just how many.
Among the 20 tracked institutional investors we monitor, WDC (WESTERN DIGITAL CORP) is held with a combined value of $33.48B across 139,245,888 shares. The largest holder is BlackRock, Inc. with a position worth $9.68B (0.17% of their portfolio). 4 funds opened new positions in the most recent quarter. 9 funds increased their holdings. 6 funds reduced their position.
Total Institutional Value
$33.48B
Total Shares Held
139,245,888
Institutional Holders
20
% of Shares Outstanding
40.4%
of 344.68M shares · SEC 2026-04-23
Days to Cover
3.4+3.9%
23.26M shares short · FINRA 2026-07-15
Tracked 13F institutions hold 40.4% of WDC's shares outstanding. This is a floor: 13F filings arrive on a ~45-day lag and we track only a subset of institutional filers, so true institutional ownership is higher. Shares-outstanding is the latest SEC cover-page figure (as of 2026-04-23), not a live float.
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
0
$0
6
$2.49M
Total Transactions
6
Last 12 months
| Date | Insider | Code | Type | Shares | Value |
|---|---|---|---|---|---|
| Jul 21, 2026 | Cynthia L Tregillis | S | Sale | 808 | $427.94K |
| Jun 9, 2026 | Martin I Cole | S | Sale | 48 | $25.35K |
| Jun 9, 2026 | Martin I Cole | S | Sale | 48 | $23.25K |
| Jun 5, 2026 | Cynthia L Tregillis | S | Sale | 432 | $235.70K |
| Jun 1, 2026 | Vidyadhara K Gubbi | S | Sale | 2,475 | $1.38M |
| May 28, 2026 | BRUCE E KIDDOO | S | Sale | 750 | $396.39K |
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | BlackRock, Inc. | $9.68B | 0.17% | +0.7% |
| 2 | FMR LLC | $8.55B | 0.45% | -6.4% |
| 3 | VANGUARD GROUP INC | $7.30B | 0.11% | -2.2% |
| 4 | STATE STREET CORP | $4.18B | 0.14% | -1.5% |
| 5 | AQR CAPITAL MANAGEMENT LLC | $913.05M | 0.42% | +16.4% |
| 6 | Capital Research Global Investors | $895.13M | 0.14% | New |
| 7 | PRICE T ROWE ASSOCIATES INC /MD/ | $715.85M | 0.08% | +1.3% |
| 8 | RENAISSANCE TECHNOLOGIES LLC | $310.02M | 0.48% | +15.5% |
| 9 | MILLENNIUM MANAGEMENT LLC | $198.55M | 0.08% | -5.2% |
| 10 | Point72 Asset Management, L.P. | $168.77M | 0.29% | +249.0% |
| Member | Type | Date |
|---|---|---|
| Alan Armstrong | Buy | Mar 27, 2026 |
| Jefferson Shreve | Sell | May 12, 2025 |
| Jefferson Shreve | Buy | Apr 17, 2025 |
| Rob Bresnahan | Sell |
As of the latest SEC 13F filings, BlackRock, Inc. is the largest institutional holder of WDC with a position worth $9.68B, representing 0.17% of their portfolio. In total, 20 institutional investors hold WDC with a combined value of $33.48B.
In the most recent quarter, 4 funds opened a new position in WDC. Additionally, 9 increased their holdings and 6 reduced their positions.
Institutional investors hold $33.48B worth of WDC stock across 20 positions. The largest institutional holder is BlackRock, Inc. with $9.68B in holdings.
A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For WDC, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their WDC positions.
Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →
| Apr 11, 2025 |
| Rob Bresnahan | Sell | Apr 10, 2025 |
| Jefferson Shreve | Sell | Mar 13, 2025 |
| Kelly Loeffler | Sell | Apr 7, 2020 |
| Kelly Loeffler | Buy | Mar 20, 2020 |
Last Close
$519.80
2026-07-24
YTD
+176.9%
67% of 52-week range
