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WDC · Western Digital Corp · Holdings

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$350.50 -30.21 (-7.94%)
Market Cap
$137.26B
Shares
360.54M
Volume · Oct 14 6.72M Avg daily vol (3M) 7.83M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.
The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.
Holders: 1,862
Total Value: $234,314,492,766
Total Shares: 367,457,468
Showing 1–100 of 1,954 holdings by value · page 1 of 20

Institutional Ownership Trend

27 quarters

Holder Concentration

Across 1,864 13F filers
Top Holder
9.0%
Sep 2023 → Jun 2026 · range 9.0% – 13.0%
of institutional value
Top 5
31.3%
Sep 2023 → Jun 2026 · range 31.3% – 39.3%
of institutional value
Top 10
49.8%
Sep 2023 → Jun 2026 · range 45.7% – 51.8%
of institutional value
HHI
319
Sep 2023 → Jun 2026 · range 314 – 431
Broadly held
Showing 100 of 1,954
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Holder Value (USD) % of 13F Shares Open

Showing the top 100 of 1,954 holders. Create a free account to see every holder, past quarters, search, filters and CSV export.

Key facts CIK 106040 CUSIP 958102105 13F (30d) 140 filings 127 filers Visit website Investor relations