WESTERN DIGITAL CORP - Common Stock (WDC)

Historical Holders from Q1 2014 to Q4 2025

Symbol: WDC on Nasdaq
Type / Class: Equity / Common Stock
Shares outstanding: 346,231,585
All holders as of 30 Sep 2025: Q3 2025
Total 13F shares, excl. options: 345,202,425
Holdings value: $41,410,217,527
% of all portfolios: 0.03%
Number of holders: 944
Number of buys: 622
Number of sells: 297
Average buys %: +0.01%
Average sells %: -0.02%

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	7%	-25%	$2,930,151,177	-$1,060,546,048	24,405,724	-27%	FMR LLC	30 Sep 2025
JPMORGAN CHASE & CO	5.3%	-20%	$636,287,340	-$165,616,530	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 that have filed 13F forms with the Securities Exchange Commission (SEC). These institutions hold a total of 345,202,425 shares of 346,231,585 outstanding shares and own 100% of the company stock as of 30 Sep 2025.

Top 25 institutional shareholders of WESTERN DIGITAL CORP - Common Stock (WDC) own 70% of the company based on 13F filings as of 30 Sep 2025

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	6.9%	23,756,722	-26%	0.15%	$2,852,231,988
BANK OF AMERICA CORP /DE/	6.5%	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	2.7%	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	2.4%	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	0.98%	3,407,042	+4924%	1.6%	$409,049,463
DEUTSCHE BANK AG\	0.88%	3,041,545	+38%	0.12%	$365,167,892
UBS AM, A DISTINCT BUSINESS UNIT OF UBS ASSET MANAGEMENT AMERICAS LLC	0.77%	2,650,242	-17%	0.07%	$318,188,054
Maple Rock Capital Partners Inc.	0.75%	2,589,325	-31%	13%	$310,874,360
PRICE T ROWE ASSOCIATES INC /MD/	0.74%	2,567,766	-27%	0.03%	$308,287,000
Nuveen, LLC	0.74%	2,553,218	+87%	0.08%	$306,539,353
GOLDMAN SACHS GROUP INC	0.72%	2,505,654	-39%	0.04%	$300,828,789
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0.68%	2,365,874	-2.5%	0.05%	$284,046,832
Holocene Advisors, LP	0.66%	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	48,385	$8,335,255	-$1,714,458			$172.27	18
2025 Q3	345,202,425	$41,410,217,527	-$1,516,666,146	$2,581,232,014	$2,027,239,010	$120.06	944
2025 Q2	364,827,264	$23,342,209,926	+$1,123,278,042	$821,327,367	$854,636,474	$63.99	740
2025 Q1	351,547,369	$14,192,610,070	+$258,358,100	$356,546,399	$774,975,996	$40.43	644
2024 Q4	335,718,014	$20,028,255,344	+$946,258,733	$722,577,297	$1,199,970,598	$59.63	693
2024 Q3	316,634,897	$21,620,129,375	-$1,497,407,970	$881,923,733	$1,465,387,274	$68.29	690
2024 Q2	335,609,343	$25,432,111,392	+$2,926,812,475	$952,639,001	$1,433,764,554	$75.77	753
2024 Q1	297,528,410	$20,301,813,033	-$139,901,419	$747,868,992	$1,130,859,012	$68.24	666
2023 Q4	2,157,603	$112,993,683	+$78,992,715			$52.37	8
2023 Q3	275,587,758	$12,569,795,942	+$421,683,941	$403,172,547	$386,300,415	$45.63	520
2023 Q2	266,698,170	$10,120,076,652	-$197,830,776	$298,284,664	$313,715,372	$37.93	517
2023 Q1	271,600,777	$10,222,477,471	-$93,510,179	$352,864,861	$352,938,962	$37.67	517
2022 Q4	271,083,729	$8,558,729,714	+$45,189,880	$307,990,345	$336,593,150	$31.55	501
2022 Q3	266,614,351	$8,679,191,336	+$164,854,306	$336,231,900	$230,671,382	$32.55	534
2022 Q2	265,007,193	$11,871,746,891	+$629,402,266	$556,111,270	$469,566,059	$44.83	593
2022 Q1	250,618,982	$12,444,407,930	-$172,829,935	$729,258,655	$405,258,580	$49.65	607
2021 Q4	249,124,899	$16,227,143,487	+$333,558,547	$919,573,318	$507,095,213	$65.21	658
2021 Q3	246,278,179	$13,897,313,869	+$23,322,037	$803,189,676	$701,116,832	$56.44	602
2021 Q2	245,584,230	$17,466,613,696	+$256,433,983	$841,397,670	$920,204,128	$71.17	661
2021 Q1	239,861,621	$16,004,873,493	+$280,070,026	$644,705,125	$823,309,075	$66.75	643
2020 Q4	236,713,917	$13,095,667,774	+$257,431,359	$833,544,997	$808,151,820	$55.39	589
2020 Q3	233,248,623	$8,526,243,222	-$120,297,053	$633,470,641	$508,264,288	$36.55	525
2020 Q2	232,538,790	$10,258,978,624	-$221,791,747	$484,263,815	$345,374,025	$44.15	579
2020 Q1	231,791,984	$9,646,157,490	-$357,399,871	$411,688,029	$282,130,000	$41.62	581
2019 Q4	241,161,391	$15,323,451,036	-$430,816,781	$940,883,017	$718,684,000	$63.47	657
2019 Q3	246,767,670	$14,716,552,042	-$153,238,033	$848,460,000	$952,083,000	$59.64	629
2019 Q2	251,630,664	$11,970,294,082	+$197,986,134	$740,232,000	$826,380,000	$47.55	614
2019 Q1	254,332,787	$12,225,783,443	+$548,723,919	$589,801,000	$490,190,000	$48.06	652
2018 Q4	240,338,535	$8,886,947,322	-$178,310,072	$388,179,000	$290,142,003	$36.97	599
2018 Q3	239,441,840	$14,005,269,693	-$333,014,084	$639,717,000	$360,306,000	$58.54	663
2018 Q2	245,263,546	$18,991,036,026	-$621,311,369	$745,749,000	$402,508,000	$77.41	771
2018 Q1	253,057,722	$23,322,262,308	+$311,725,638	$751,708,590	$583,954,000	$92.27	786
2017 Q4	249,127,683	$19,800,560,499	+$34,705,173	$909,406,750	$437,635,003	$79.53	763
2017 Q3	249,782,409	$21,581,841,346	+$487,008,343	$817,480,001	$553,755,011	$86.40	738
2017 Q2	243,458,233	$21,573,104,122	+$345,054,852	$866,613,000	$492,576,000	$88.60	750
2017 Q1	236,872,898	$19,550,058,663	+$1,232,459,946	$618,483,034	$798,465,024	$82.53	710
2016 Q4	239,078,276	$16,237,948,681	-$602,925,277	$749,887,022	$438,936,007	$67.95	686
2016 Q3	250,348,131	$14,631,165,199	+$302,941,748	$708,336,000	$398,761,000	$58.47	629
2016 Q2	247,452,410	$11,693,466,059	+$948,115,333	$619,828,000	$567,158,000	$47.26	613
2016 Q1	224,340,119	$10,593,404,236	+$810,922,399	$368,898,000	$403,107,000	$47.24	553
2015 Q4	211,258,787	$12,690,363,712	+$196,714,679	$248,138,000	$191,934,000	$60.05	552
2015 Q3	203,415,307	$16,136,462,791	+$16,996,224	$244,268,000	$319,300,865	$79.44	535
2015 Q2	199,532,069	$15,659,585,315	+$201,238,170	$221,454,000	$196,915,587	$78.42	566
2015 Q1	203,657,501	$18,544,289,123	-$90,943,498	$267,030,000	$290,935,365	$91.01	592
2014 Q4	205,861,734	$22,779,950,850	+$614,439,312	$204,759,000	$154,937,000	$110.70	598
2014 Q3	199,290,685	$19,391,296,757	+$169,191,599	$152,068,000	$162,966,000	$97.32	563
2014 Q2	189,441,993	$17,494,168,981	-$136,500,649	$145,846,000	$256,652,000	$92.30	545
2014 Q1	192,712,360	$17,687,410,071	-$23,240,481	$188,054,000	$288,972,000	$91.82	539