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Western Digital Corporation (WDC)

Technology Computer Hardware
544.80 $
+2.2% vs. previous close
Closing price · As of: 31. Jul 2026

Who owns Western Digital Corporation (WDC)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 99.3% of the shares are freely tradable; institutional investors hold 101.2%.

Ownership Structure

Institutional ownership
101.2%
Insiders
0.5%
Float
99.3%
Short % of float
8.7%
Shares Outstanding
345Mio.

Largest Shareholders

Institutions

Institutions WDC
Name Stake (%) Shares Change (%) Date
Vanguard Group Inc 12.29 42,348,660 -2.2 12/31/2025
BlackRock Inc 10.38 35,769,222 +0.7 03/31/2026
FMR Inc 9.17 31,623,418 -6.4 03/31/2026
Vanguard Capital Management, LLC 6.39 22,034,861 +0.0 03/31/2026
JPMorgan Chase & Co 5.08 17,512,148 +22.5 03/31/2026
Vanguard Portfolio Management, LLC 4.98 17,172,653 +0.0 03/31/2026
State Street Corp 4.49 15,465,766 -1.5 03/31/2026
Capital World Investors 3.45 11,880,038 +1,017.0 03/31/2026
Geode Capital Management, LLC 2.75 9,477,201 +2.1 03/31/2026

Funds

Funds WDC
Name Stake (%) Shares Change (%) Date
Vanguard Total Stock Mkt Idx Inv 3.13 10,802,245 +0.3 04/30/2026

Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.

Insider Transactions

Insider Transactions
Date Person Role Type Shares Price Value
28. Jul 2026 Cole Martin I Director Sell 160 462.30 73,968
28. Jul 2026 Cole Martin I Director Sell 199 461.23 91,786
28. Jul 2026 Cole Martin I Director Sell 248 459.97 114,073
28. Jul 2026 Cole Martin I Director Sell 529 458.96 242,788
28. Jul 2026 Cole Martin I Director Sell 328 457.45 150,043
28. Jul 2026 Cole Martin I Director Sell 312 456.52 142,433
28. Jul 2026 Cole Martin I Director Sell 304 455.55 138,486
28. Jul 2026 Cole Martin I Director Sell 128 454.44 58,169
28. Jul 2026 Cole Martin I Director Sell 144 453.27 65,271
28. Jul 2026 Cole Martin I Director Sell 106 452.12 47,925
28. Jul 2026 Cole Martin I Director Sell 70 451.30 31,591
28. Jul 2026 Cole Martin I Director Sell 39 449.42 17,527
28. Jul 2026 Cole Martin I Director Sell 41 448.46 18,387
28. Jul 2026 Cole Martin I Director Sell 96 440.96 42,332
28. Jul 2026 Cole Martin I Director Sell 118 438.08 51,694
28. Jul 2026 Cole Martin I Director Sell 154 436.89 67,282
28. Jul 2026 Cole Martin I Director Sell 112 433.84 48,590
28. Jul 2026 Cole Martin I Director Sell 38 432.20 16,424
28. Jul 2026 Cole Martin I Director Sell 103 430.45 44,336
28. Jul 2026 Cole Martin I Director Sell 93 429.12 39,908
28. Jul 2026 Cole Martin I Director Sell 115 431.41 49,612
28. Jul 2026 Cole Martin I Director Sell 32 465.12 14,884
28. Jul 2026 Cole Martin I Director Sell 64 439.38 28,120
21. Jul 2026 Tregillis Cynthia L Chief Legal Officer & Corp Sec Sell 808 529.63 427,941
20. Jul 2026 Tregillis Cynthia L Chief Legal Officer & Corp Sec Other 1,309 487.42 638,033
20. Jul 2026 Tregillis Cynthia L Chief Legal Officer & Corp Sec Other 13 0.00
21. Apr 2026 Cynthia L Tregillis Insider Sell 363 377.09 136,884

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: July 31, 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.

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