Western Digital Corp (WDC) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

241,784,038Shares Outstanding

1,145,125Shares held by institutions

$325,341,464Value of institutional holdings

79.30%Institutional ownership %

10.06%Shares Changed QoQ

598No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

A total of 1109 institutions have reported a stake in Western Digital Corp (NASDAQ:WDC) as of December 2025, according to recent 13F filings with the SEC.

Institutional ownership in Western Digital edged down to 92.4% in December 2025, compared to 96.2% in September 2025.
In percentage terms, this reflects as a holdings change of -0.75% quarter on quarter, and an increase of 57.08% year over year.
A review of institutional activity for Western Digital shows 666 of 1109 filers increasing their positions, while 349 reduced their stake, and 94 remained unchanged.
The total number of shares held by institutions in Western Digital decreased to 336.17Mn as of December 2025, a net change of down by 2.56Mn shares quarter on quarter, and down 8.77Mn shares year over year.
The top institutional stake in Western Digital as of December 31, 2025 belongs to VANGUARD GROUP INC, which owns 42.35Mn shares, or 11.64% of the company.
Among the most significant buyers of Western Digital during December 2025 were FMR LLC (10.04Mn), NORGES BANK (4.58Mn), Walleye Trading LLC (3.10Mn), JANE STREET GROUP, LLC (2.48Mn), JPMORGAN CHASE & CO (2.28Mn).
Leading sellers of Western Digital stock in December 2025 included BANK OF AMERICA CORP /DE/ (10.32Mn), D. E. Shaw & Co., Inc. (3.92Mn), CITADEL ADVISORS LLC (2.41Mn), UBS Group AG (2.26Mn), BALYASNY ASSET MANAGEMENT L.P. (1.95Mn).
The top 10 institutional holders of Western Digital for the quarter ending December 2025 included VANGUARD GROUP INC (42.35Mn), BlackRock, Inc. (35.51Mn), FMR LLC (33.79Mn), STATE STREET CORP (15.70Mn), JPMORGAN CHASE & CO (14.30Mn), BANK OF AMERICA CORP /DE/ (12.04Mn), GEODE CAPITAL MANAGEMENT, LLC (9.28Mn), MORGAN STANLEY (8.94Mn), AMERIPRISE FINANCIAL INC (8.52Mn), JANE STREET GROUP, LLC (7.23Mn).

1,109 Institutional Holders

1,145,125 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
VANGUARD GROUP INC	31 Dec, 2025	42,348,660	-933,733	-2.16%	$7,295,403,659.00
BlackRock, Inc.	31 Dec, 2025	35,509,518	794,667	2.29%	$6,117,224,662.00
FMR LLC	31 Dec, 2025	33,793,801	10,037,079	42.25%	$5,821,658,122.00
STATE STREET CORP	31 Dec, 2025	15,695,954	234,097	1.51%	$2,703,941,996.00
JPMORGAN CHASE & CO	31 Dec, 2025	14,295,965	2,275,855	18.93%	$2,462,766,329.00
BANK OF AMERICA CORP /DE/	31 Dec, 2025	12,044,651	-10,316,359	-46.14%	$2,074,931,951.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	9,282,432	-132,086	-1.40%	$1,593,883,319.00
MORGAN STANLEY	31 Dec, 2025	8,944,662	542,040	6.45%	$1,540,897,488.00
AMERIPRISE FINANCIAL INC	31 Dec, 2025	8,520,425	-162,894	-1.88%	$1,467,814,250.00
JANE STREET GROUP, LLC	31 Dec, 2025	7,231,407	2,475,471	52.05%	$1,245,754,484.00
WCM INVESTMENT MANAGEMENT, LLC	31 Dec, 2025	6,691,209	-87,251	-1.29%	$1,178,054,257.00
D. E. Shaw & Co., Inc.	31 Dec, 2025	5,701,318	-3,923,998	-40.77%	$982,166,052.00
GOLDMAN SACHS GROUP INC	31 Dec, 2025	5,108,476	2,253,322	78.92%	$880,037,211.00
UBS Group AG	31 Dec, 2025	5,065,721	-2,264,275	-30.89%	$872,671,756.00
NORGES BANK	31 Dec, 2025	4,578,446	4,578,446	0.00%	$788,728,892.00
Nuveen, LLC	31 Dec, 2025	4,563,476	2,010,258	78.73%	$786,150,010.00
NORTHERN TRUST CORP	31 Dec, 2025	3,671,955	-133,508	-3.51%	$632,567,688.00
DIMENSIONAL FUND ADVISORS LP	31 Dec, 2025	3,565,342	-239,565	-6.30%	$614,316,015.00
Walleye Trading LLC	31 Dec, 2025	3,142,408	3,096,116	6,688.23%	$455,207,626.00
AQR CAPITAL MANAGEMENT LLC	31 Dec, 2025	2,972,703	1,228,661	70.45%	$512,107,498.00

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