WESTERN DIGITAL CORP - COMMON STOCK (WDC)

Historical Holders from Q1 2014 to Q4 2025

Type / Class: Equity / COMMON STOCK
Symbol: WDC on Nasdaq
Shares outstanding: 341,254,102
Price per share: $172.27
All holders as of 30 Sep 2025: Q3 2025
Total 13F shares as of 30 Sep 2025: 345,202,425
Holdings value: $41,410,217,527
% of all portfolios: 0.03%
Share change: -19,774,102
Value change: -$1,533,759,626
Average buys %: +0.01%
Average sells %: -0.02%
Number of holders: 944
Price from insider filings: $181.08

Reported Shares, Excluding Options vs Price

Reported Value, Excluding Options

Total Investors

Significant Owners of WESTERN DIGITAL CORP - COMMON STOCK (WDC) based on Schedule 13D/G filings

Filer	Ownership	Change %	Holdings Value	Net Change	Nb Shares	Change %	Reporting Name	Report Period
FMR LLC	10%	+44%	$5,937,572,262	+$1,733,198,306	34,466,664	+41%	FMR LLC	31 Dec 2025
JPMORGAN CHASE & CO	5.3%	-20%	$751,336,970	-$195,562,309	18,496,725	-21%	JPMORGAN CHASE & CO.	31 Mar 2025
MANAGED ACCOUNT ADVISORS LLC	5.3%	-18%	$2,203,133,896	-$459,672,762	18,350,274	-17%	MANAGED ACCOUNT ADVISORS LLC	30 Sep 2025

As of 30 Sep 2025, WESTERN DIGITAL CORP - COMMON STOCK (WDC) has 944 institutional shareholders filing 13F forms. They hold 345,202,425 shares .

Top 25 institutional shareholders own 71% of the company.

Filer	Ownership	Nb Shares	Share Change %	Portfolio %	Holdings Value
VANGUARD GROUP INC	13%	43,282,393	+0.57%	0.08%	$5,196,484,104
BlackRock, Inc.	10%	34,714,851	-0.81%	0.07%	$4,167,865,040
FMR LLC	7%	23,756,722	-26%	0.15%	$2,852,231,988
BANK OF AMERICA CORP /DE/	6.6%	22,361,010	-14%	0.2%	$2,684,662,886
STATE STREET CORP	4.5%	15,461,857	+1.8%	0.06%	$1,856,350,551
JPMORGAN CHASE & CO	3.5%	12,020,110	+6.3%	0.09%	$1,443,134,450
D. E. Shaw & Co., Inc.	2.8%	9,625,316	+231%	0.93%	$1,155,615,439
GEODE CAPITAL MANAGEMENT, LLC	2.8%	9,414,518	+1.2%	0.07%	$1,125,853,415
AMERIPRISE FINANCIAL INC	2.5%	8,683,319	-4.2%	0.24%	$1,042,519,726
MORGAN STANLEY	2.5%	8,402,622	+7.4%	0.06%	$1,008,819,241
UBS Group AG	2.1%	7,329,996	-36%	0.17%	$880,039,320
WCM INVESTMENT MANAGEMENT, LLC	2%	6,778,460		1.6%	$791,317,420
Invesco Ltd.	1.3%	4,435,076	-16%	0.08%	$532,475,223
NORTHERN TRUST CORP	1.1%	3,805,463	+11%	0.06%	$456,883,886
DIMENSIONAL FUND ADVISORS LP	1.1%	3,804,907	+12%	0.1%	$456,736,523
CITADEL ADVISORS LLC	1.1%	3,727,606	+6%	0.36%	$447,536,376
FRED ALGER MANAGEMENT, LLC	1%	3,407,042	+4924%	1.6%	$409,049,463
DEUTSCHE BANK AG\	0.89%	3,041,545	+38%	0.12%	$365,167,892
UBS AM, A DISTINCT BUSINESS UNIT OF UBS ASSET MANAGEMENT AMERICAS LLC	0.78%	2,650,242	-17%	0.07%	$318,188,054
Maple Rock Capital Partners Inc.	0.76%	2,589,325	-31%	13%	$310,874,360
PRICE T ROWE ASSOCIATES INC /MD/	0.75%	2,567,766	-27%	0.03%	$308,287,000
Nuveen, LLC	0.75%	2,553,218	+87%	0.08%	$306,539,353
GOLDMAN SACHS GROUP INC	0.73%	2,505,654	-39%	0.04%	$300,828,789
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0.69%	2,365,874	-2.5%	0.05%	$284,046,832
Holocene Advisors, LP	0.67%	2,270,410	-59%	0.63%	$272,585,425

Institutional Holders of WESTERN DIGITAL CORP - COMMON STOCK (WDC) across Reporting Periods

Period	Reported Shares, Excl. Options	Value, Excl. Options	Value Change	Puts Notional Value	Calls Notional Value	Price	Investors
2025 Q4	411,367	$75,092,033	-$45,428,557			$172.27	34
2025 Q3	345,202,425	$41,410,217,527	-$1,533,759,626	$2,581,232,014	$2,027,239,010	$120.06	944
2025 Q2	364,816,124	$23,342,198,786	+$1,123,278,161	$821,327,367	$854,507,699	$63.99	739
2025 Q1	351,757,551	$14,201,107,313	+$258,623,965	$356,546,399	$774,975,996	$40.43	647
2024 Q4	335,743,943	$20,029,326,966	+$599,750,977	$722,577,297	$1,199,970,598	$59.63	700
2024 Q3	322,471,092	$22,018,682,057	-$1,008,797,716	$881,923,733	$1,465,387,274	$68.29	686
2024 Q2	335,036,923	$25,388,750,160	+$2,493,792,892	$952,639,001	$1,433,764,554	$75.77	744
2024 Q1	302,784,405	$20,660,480,854	+$263,410,433	$747,856,884	$1,130,716,471	$68.24	665
2023 Q4	300,791,229	$15,743,822,656	+$914,253,649	$552,713,508	$601,284,851	$52.37	598
2023 Q3	278,402,284	$12,698,222,739	+$450,082,597	$403,109,109	$386,300,415	$45.63	529
2023 Q2	269,546,144	$10,228,100,761	-$92,478,558	$298,185,339	$313,715,372	$37.93	528
2023 Q1	271,661,416	$10,224,754,796	-$121,799,785	$352,748,136	$352,923,962	$37.67	527
2022 Q4	272,718,419	$8,610,305,207	+$27,933,930	$307,903,345	$336,593,150	$31.55	512
2022 Q3	274,725,203	$8,957,141,441	+$223,285,442	$336,231,900	$231,502,550	$32.55	551
2022 Q2	266,628,361	$11,948,522,958	+$687,443,720	$555,944,270	$469,555,059	$44.83	610
2022 Q1	251,026,251	$12,464,621,991	-$180,500,144	$729,152,655	$405,258,580	$49.65	618
2021 Q4	252,121,402	$16,422,593,268	+$331,163,722	$996,587,318	$512,936,213	$65.21	670
2021 Q3	247,206,015	$13,949,703,199	+$44,551,145	$881,471,676	$706,631,472	$56.44	603
2021 Q2	246,002,769	$17,496,401,435	+$272,251,173	$927,605,670	$942,634,128	$71.17	665
2021 Q1	242,159,240	$16,158,856,504	+$278,189,015	$668,392,125	$887,914,075	$66.75	648
2020 Q4	238,312,740	$13,183,437,197	+$213,782,076	$888,595,997	$833,987,820	$55.39	601
2020 Q3	235,361,779	$8,603,594,713	-$112,407,229	$632,728,255	$508,782,485	$36.55	535
2020 Q2	237,021,681	$10,456,943,596	-$185,522,175	$482,991,740	$345,374,025	$44.15	590
2020 Q1	241,122,876	$10,034,197,556	-$399,716,212	$411,688,000	$282,130,000	$41.62	596
2019 Q4	248,393,940	$15,782,722,333	-$369,501,894	$940,883,000	$718,684,000	$63.47	670
2019 Q3	253,999,153	$15,147,876,005	-$182,972,159	$848,460,000	$948,505,000	$59.64	638
2019 Q2	257,956,628	$12,269,785,410	+$73,507,720	$740,232,000	$816,230,000	$47.55	625
2019 Q1	259,911,330	$12,493,914,455	+$600,828,925	$589,734,000	$481,986,000	$48.06	662
2018 Q4	247,855,679	$9,164,663,033	-$127,195,436	$388,279,000	$290,142,000	$36.97	613
2018 Q3	245,422,737	$14,356,874,790	-$194,562,317	$639,420,000	$360,280,000	$58.54	678
2018 Q2	246,465,038	$19,084,355,780	-$800,779,355	$745,749,000	$402,508,000	$77.41	782
2018 Q1	254,873,531	$23,489,784,530	+$313,476,835	$751,665,590	$583,954,000	$92.27	798
2017 Q4	252,315,759	$20,054,256,381	-$21,088,952	$902,438,741	$437,616,000	$79.53	775
2017 Q3	250,640,237	$21,655,947,117	+$461,708,664	$817,346,000	$553,710,000	$86.40	749
2017 Q2	245,268,583	$21,733,652,904	+$337,066,673	$866,613,000	$492,576,000	$88.60	762
2017 Q1	242,976,352	$20,053,954,791	+$1,208,554,532	$618,483,000	$798,465,000	$82.53	722
2016 Q4	245,824,707	$16,702,925,102	-$471,267,064	$749,887,000	$438,936,000	$67.95	698
2016 Q3	252,815,257	$14,775,486,199	+$247,789,845	$708,336,000	$398,761,000	$58.47	636
2016 Q2	250,063,633	$11,816,864,059	+$950,876,931	$619,824,000	$566,946,000	$47.26	619
2016 Q1	228,649,623	$10,796,984,236	+$733,785,287	$368,252,000	$401,413,000	$47.24	559
2015 Q4	212,076,589	$12,739,213,712	+$217,502,558	$246,077,000	$191,688,000	$60.05	558
2015 Q3	206,610,065	$16,390,256,791	+$61,085,804	$244,268,000	$319,298,000	$79.44	538
2015 Q2	206,504,862	$16,206,390,315	+$140,758,438	$221,410,000	$196,910,000	$78.42	572
2015 Q1	204,283,950	$18,601,298,890	-$213,019,144	$266,998,000	$290,826,000	$91.01	597
2014 Q4	206,181,894	$22,815,171,850	+$665,913,335	$204,741,000	$154,937,000	$110.70	600
2014 Q3	199,297,592	$19,391,968,757	+$92,758,379	$151,997,000	$162,966,000	$97.32	565
2014 Q2	198,199,056	$18,302,445,981	-$207,954,145	$145,811,000	$256,649,000	$92.30	548
2014 Q1	200,225,949	$18,377,288,071	-$47,792,752	$188,054,000	$288,972,000	$91.82	542