WDC Institutional Ownership & Shareholders
WESTERN DIGITAL CORP (WDC) is currently held by 1,751 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $199.22B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of WDC tracked by InsiderSet, reporting ownership valued at approximately $21.05B in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $12.06B, representing an estimated loss of -42.68% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 56% of the total disclosed WDC value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Fmr Llc, Vanguard Capital Management Llc, and several other long-term asset managers with concentrated positions in WESTERN DIGITAL CORP (WDC).
This page ranks the largest institutional WDC shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
1,751
Total Reported Value
$199.22B
Largest Holder
Blackrock, Inc.
Largest Position
$21.05B
Insider Transactions (90d)
50
Latest Filing Quarter
Q2 2026
New Institutional Positions
39
Funds Exiting Positions
1
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.31% | 32,953,613 | $21,048,132,217 | $12,064,647,255 | -$8,983,484,962 | -42.68% | |
| Fmr Llc | 0.72% | 25,983,645 | $16,596,273,651 | $9,512,872,271 | -$7,083,401,380 | -42.68% | |
| Vanguard Capital Management Llc | 0.31% | 22,510,811 | $14,378,105,202 | $8,241,433,015 | -$6,136,672,187 | -42.68% | |
| Jpmorgan Chase & Co | 0.65% | 17,007,789 | $11,087,038,554 | $6,226,721,631 | -$4,860,316,923 | -43.84% | |
| Capital World Investors | 1.25% | 16,598,211 | $10,601,693,655 | $6,076,771,029 | -$4,524,922,626 | -42.68% | |
| State Street Corp | 0.31% | 16,276,615 | $10,396,199,533 | $5,959,031,518 | -$4,437,168,015 | -42.68% | |
| Invesco Ltd. | 0.73% | 14,435,741 | $9,220,396,498 | $5,285,069,138 | -$3,935,327,360 | -42.68% | |
| Vanguard Portfolio Management Llc | 0.38% | 13,109,474 | $8,373,283,234 | $4,799,509,526 | -$3,573,773,708 | -42.68% | |
| Geode Capital Management, Llc | 0.29% | 8,411,628 | $5,352,976,142 | $3,079,581,127 | -$2,273,395,015 | -42.47% | |
| Morgan Stanley | 0.28% | 8,148,144 | $5,204,384,391 | $2,983,117,000 | -$2,221,267,391 | -42.68% | |
| Bank Of America Corp | 0.27% | 6,489,630 | $4,145,056,679 | $2,375,918,439 | -$1,769,138,240 | -42.68% | |
| Goldman Sachs Group Inc | 0.35% | 5,178,993 | $3,307,926,252 | $1,896,081,127 | -$1,411,845,125 | -42.68% | |
| Norges Bank | 0.29% | 4,629,232 | $2,956,783,063 | $1,694,808,128 | -$1,261,974,935 | -42.68% | |
| Nuveen, Llc | 0.58% | 3,819,103 | $2,439,337,341 | $1,398,211,799 | -$1,041,125,542 | -42.68% | |
| Northern Trust Corp | 0.27% | 3,663,369 | $2,339,867,048 | $1,341,196,025 | -$998,671,023 | -42.68% | |
| Ameriprise Financial Inc | 0.44% | 3,386,190 | $2,162,146,793 | $1,239,718,021 | -$922,428,772 | -42.66% | |
| Aqr Capital Management Llc | 0.65% | 2,940,948 | $1,878,442,049 | $1,076,710,472 | -$801,731,577 | -42.68% | |
| Bank Of New York Mellon Corp | 0.31% | 2,916,885 | $1,863,072,931 | $1,067,900,767 | -$795,172,164 | -42.68% | |
| Capital Research Global Investors | 0.25% | 2,816,570 | $1,799,092,582 | $1,031,174,443 | -$767,918,139 | -42.68% | |
| Peakshares Llc | 1.20% | 2,535 | $1,619,155,000 | $928,089 | -$1,618,226,911 | -99.94% | |
| Legal & General Group Plc | 0.33% | 2,509,592 | $1,602,926,605 | $918,786,727 | -$684,139,878 | -42.68% | |
| Dimensional Fund Advisors Lp | 0.28% | 2,448,137 | $1,564,050,658 | $896,287,437 | -$667,763,221 | -42.69% | |
| Fred Alger Management, Llc | 4.70% | 2,206,326 | $1,409,224,543 | $807,758,012 | -$601,466,531 | -42.68% | |
| Charles Schwab Investment Management Inc | 0.18% | 2,132,395 | $1,362,003,335 | $780,691,133 | -$581,312,202 | -42.68% | |
| Price T Rowe Associates Inc | 0.13% | 2,075,801 | $1,325,856,000 | $759,971,504 | -$565,884,496 | -42.68% | |
| Vanguard Fiduciary Trust Co | 0.28% | 1,979,131 | $1,264,110,552 | $724,579,650 | -$539,530,902 | -42.68% | |
| D. E. Shaw & Co., Inc. | 0.75% | 1,901,787 | $1,214,709,393 | $696,263,239 | -$518,446,154 | -42.68% | |
| Capital International Investors | 0.24% | 1,803,588 | $1,152,013,495 | $660,311,603 | -$491,701,892 | -42.68% | |
| Wcm Investment Management, Llc | 1.93% | 1,632,121 | $1,063,947,037 | $597,535,819 | -$466,411,218 | -43.84% | |
| Bank Of Montreal | 0.38% | 1,634,675 | $1,044,099,617 | $598,470,864 | -$445,628,753 | -42.68% | |
| Exchange Traded Concepts, Llc | 4.26% | 2,116,078 | $961,672,807 | $774,717,317 | -$186,955,490 | -19.44% | |
| Bnp Paribas Financial Markets | 0.50% | 1,493,593 | $953,987,720 | $546,819,333 | -$407,168,387 | -42.68% | |
| Anther Capital Ltd | 23.09% | 1,411,575 | $901,601,184 | $516,791,723 | -$384,809,461 | -42.68% | |
| Deutsche Bank Ag\ | 0.26% | 1,386,468 | $885,564,841 | $507,599,799 | -$377,965,042 | -42.68% | |
| National Pension Service | 0.57% | 1,380,902 | $882,009,725 | $505,562,031 | -$376,447,694 | -42.68% | |
| Maple Rock Capital Partners Inc. | 17.01% | 1,357,834 | $867,275,732 | $497,116,606 | -$370,159,126 | -42.68% | |
| Royal Bank Of Canada | 0.14% | 1,312,031 | $838,021,000 | $480,347,669 | -$357,673,331 | -42.68% | |
| Ubs Group Ag | 0.13% | 1,258,485 | $803,819,539 | $460,743,943 | -$343,075,596 | -42.68% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.16% | 2,902,748 | $785,164,308 | $1,062,725,070 | +$277,560,762 | +35.35% | |
| Hsbc Holdings Plc | 0.36% | 1,178,779 | $752,750,263 | $431,562,780 | -$321,187,483 | -42.67% | |
| Jane Street Group, Llc | 0.43% | 1,052,246 | $672,090,565 | $385,237,783 | -$286,852,782 | -42.68% | |
| Citigroup Inc | 0.30% | 1,007,000 | $643,190,766 | $368,672,770 | -$274,517,996 | -42.68% | |
| Value Aligned Research Advisors, Llc | 3.77% | 988,429 | $631,329,371 | $361,873,741 | -$269,455,630 | -42.68% | |
| Trivest Advisors Ltd | 19.73% | 982,600 | $627,606,272 | $359,739,686 | -$267,866,586 | -42.68% | |
| Swiss National Bank | 0.33% | 975,987 | $623,382,417 | $357,318,601 | -$266,063,816 | -42.68% | |
| Qube Research & Technologies Ltd | 0.65% | 915,929 | $585,022,171 | $335,330,766 | -$249,691,405 | -42.68% | |
| National Bank Of Canada | 0.51% | 909,546 | $580,953,189 | $332,993,886 | -$247,959,303 | -42.68% | |
| Castle Hook Partners Lp | 6.18% | 903,374 | $577,003,041 | $330,734,255 | -$246,268,786 | -42.68% | |
| Mitsubishi Ufj Asset Management Co., Ltd. | 0.31% | 875,582 | $559,251,735 | $320,559,326 | -$238,692,409 | -42.68% | |
| Wells Fargo & Company/Mn | 0.10% | 863,445 | $551,499,742 | $316,115,849 | -$235,383,893 | -42.68% |
Frequently asked questions about WDC
Who are the largest institutional holders of WDC?
The largest institutional holders of WDC reported in the latest SEC Form 13F filings include Blackrock, Inc., Fmr Llc, Vanguard Capital Management Llc, Jpmorgan Chase & Co, and Capital World Investors. InsiderSet ranks institutional holders by their latest reported WDC position.
What is WDC institutional ownership?
This page tracks WDC positions reported by institutional investment managers through SEC Form 13F. WESTERN DIGITAL CORP (WDC) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own WDC?
InsiderSet currently tracks 1,751 institutional managers reporting WDC holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of WDC shareholders.
How much WDC stock do institutions own?
Institutional investment managers disclosed approximately $199.22B in WDC holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was WDC institutional ownership last updated?
The latest WDC institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional WDC holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its WDC position after the reporting date.
Are institutions buying or selling WDC?
Institutional buying and selling can be analyzed by comparing WDC positions across consecutive 13F reporting periods. InsiderSet's WDC Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View WDC ownership changes.
How has WDC institutional ownership changed over time?
InsiderSet tracks WDC institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.