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Stocks / United States / WDC / Holders

Western Digital Corp. 13F holders

Of the 44 funds followed here, 12 reported a position in Western Digital Corp. in a 13F for the quarter ended 30 June 2026. The largest: FMR LLC, 26.0 million shares worth $16.60 billion, 0.7% of its reported book.

FundSharesValueOf its bookChange on the quarterStatusQuarter endedFiling
FMR LLC25,983,645$16.60 billion0.7%-5,639,773trimmed30 June 202613F
Citadel Advisors8,759,278$5.59 billion0.6%+2,911,310added30 June 202613F
Geode Capital Management8,411,628$5.35 billion0.3%-1,065,573trimmed30 June 202613F
Norges Bank4,629,232$2.96 billion0.3%held30 June 202613F
Capital Research Global Investors2,816,570$1.80 billion0.3%-493,055trimmed30 June 202613F
Millennium Management991,462$633.3 million0.2%+257,409added30 June 202613F
Renaissance Technologies537,473$343.3 million0.5%-608,660trimmed30 June 202613F
Whale Rock Capital Management400,687$255.9 million2.1%-11,319trimmed30 June 202613F
Point72 Asset Management265,793$169.8 million0.2%-843,251trimmed30 June 202613F
Bridgewater Associates172,415$110.1 million0.5%-76,624trimmed30 June 202613F
Two Sigma Investments74,556$47.6 million0.0%+44,686added30 June 202613F
Alyeska26,282$16.8 million0.0%-129,002trimmed30 June 202613F

Value is what the fund reported. Change is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.

Schedule 13D and 13G filed on the name, last twelve months

FiledScheduleWhoHoldingOf the classEvent dateRule or purposeFiling
6 August 202613G/AFmr Llc and 3 others26.4 million7.2%30 June 2026passive, institutional (13d-1(b))EDGAR
31 July 202613G/AVanguard Portfolio Management and 1 other13.2 million3.6%30 June 2026passive, institutional (13d-1(b))EDGAR
30 April 202613GVanguard Capital Management and 1 other25.4 million7.5%31 March 2026passive, institutional (13d-1(b))EDGAR
29 April 202613GVanguard Portfolio Management and 1 other17.2 million5.1%31 March 2026passive, institutional (13d-1(b))EDGAR
27 March 202613G/AThe Vanguard Group and 1 other00.0%13 March 2026passive, institutional (13d-1(b))EDGAR
10 February 202613G/AManaged Account Advisors Llc and 1 other9.0 million2.6%31 December 2025passive, institutional (13d-1(b))EDGAR
8 January 202613G/AFmr Llc and 3 others34.5 million10.1%31 December 2025passive, institutional (13d-1(b))EDGAR
13 November 202513G/AManaged Account Advisors Llc and 1 other18.4 million5.3%30 September 2025passive, institutional (13d-1(b))EDGAR
5 November 202513G/AFmr Llc and 3 others24.4 million7.0%30 September 2025passive, institutional (13d-1(b))EDGAR

A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder. Amendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short.

Fails to deliver

Settlement dateShares failedPriceFile
17 August 2026654$508.80SEC
11 August 20261$438.34SEC
7 August 20261$451.52SEC
5 August 2026238$548.56SEC
3 August 20261,100$544.84SEC
29 July 20262,782$463.51SEC
20 July 20261,556$477.22SEC
17 July 20263,575$466.81SEC

Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period. Largest in the window: 3,575 on 17 July 2026. A fail is an operational fact about settlement, not a position.

Source

Each fund's 13F-HR on EDGAR, linked per row; positions matched to WDC by CUSIP from the SEC's own fails-to-deliver files; Schedule 13D and 13G from the company's own filing index, each read to confirm the company is the issuer named.

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