RHUMBLINE ADVISERS

Position in WDC — Western Digital Corp

CIK 1115418 BOSTON, MA

Position in WDC

as of Mar 31, 2026 · filed May 12, 2026 Compact

Position Value

$160,780,608

+$51,382,957 QoQ

Shares Held

594,405

-6.4% QoQ

Ownership

0.172%

of shares outstanding

% of Portfolio

0.14%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 59.72157030980561.ToString("F0")% Shared 0.ToString("F0")% None 40.27842969019439.ToString("F0")%

Technology · as of Mar 31, 2026

RHUMBLINE ADVISERS holds $792,618,140 across 21 Computer Hardware names. WDC ranks #2 (20.3% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ANET	Arista Networks, Inc.	1,780,170	$218,569,272
2	WDC	Western Digital Corp This page	594,405	$160,780,608
3	SNDK	Sandisk Corp	218,617	$138,896,124
4	DELL	Dell Technologies Inc.	551,263	$90,478,796
5	STX	Seagate Technology Holdings plc	229,211	$89,795,701
6	HPQ	Hp Inc	1,996,482	$38,352,419
7	SMCI	Super Micro Computer, Inc.	1,017,284	$23,163,556
8	IONQ	IonQ, Inc.	542,613	$15,643,532

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$160,780,608	594,405	-6.4%	Shares	Sole	2026-05-12
2025-12-31	$109,397,651	635,036	-5.0%	Shares	Sole	2026-02-13
2025-09-30	$80,285,562	668,712	-1.7%	Shares	Sole	2025-11-06
2025-06-30	$43,532,460	680,301	+0.8%	Shares	Sole	2025-08-12
2025-03-31	$27,285,155	674,874	+7.3%	Shares	Sole	2025-05-29
2024-12-31	$28,335,378	628,672	+1.3%	Shares	Sole	2025-05-29
2024-09-30	$32,036,040	620,643	-1.1%	Shares	Sole	2024-11-12
2024-06-30	$35,945,420	627,633	+5.2%	Shares	Sole	2024-08-01
2024-03-31	$30,766,672	596,488	-4.0%	Shares	Sole	2024-05-09
2023-12-31	$24,607,540	621,649	+2.3%	Shares	Sole	2024-02-08
2023-09-30	$20,956,312	607,609	-1.2%	Shares	Sole	2023-11-09
2023-06-30	$17,630,346	614,947	+0.1%	Shares	Sole	2023-08-08
2023-03-31	$17,484,623	614,073	-0.4%	Shares	Sole	2023-05-11
2022-12-31	$14,707,416	616,733	+5.3%	Shares	Sole	2023-02-14
2022-09-30	$14,407,756	585,605	+4.9%	Shares	Sole	2022-11-10
2022-06-30	$18,913,409	558,163	+12.4%	Shares	Sole	2022-08-11
2022-03-31	$18,635,690	496,577	+1.5%	Shares	Sole	2022-05-12
2021-12-31	$24,114,296	489,238	+0.9%	Shares	Sole	2022-02-10
2021-09-30	$20,692,310	485,045	-2.7%	Shares	Sole	2021-11-12
2021-06-30	$26,816,131	498,493	-1.7%	Shares	Sole	2021-08-05
2021-03-31	$25,579,218	506,986	-15.3%	Shares	Sole	2021-05-06
2020-12-31	$25,049,235	598,305	+3.7%	Shares	Sole	2021-02-10
2020-09-30	$15,941,984	577,052	+9.1%	Shares	Sole	2020-11-12
2020-06-30	$17,648,039	528,842	-5.0%	Shares	Sole	2020-08-13
2020-03-31	$17,514,089	556,731	—	Shares	Sole	2020-05-06
No filing history on record for this holder in this stock.