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Equibles

UBS Group AG

Position in WDC — Western Digital Corp

CIK 1610520 ZURICH, V8
Back to WDC Full portfolio

Position in WDC

as of Mar 31, 2026 · filed May 5, 2026
Position Value
$1,131,311,981
+$347,342,052 QoQ
Shares Held
4,182,454
-8.1% QoQ
Ownership
1.21%
of shares outstanding
% of Portfolio
0.27%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority Sole 95.40982399328242.ToString("F0")% Shared 0.ToString("F0")% None 4.590176006717588.ToString("F0")%

Common Shares in WDC Over Time

Shares Held

Position Value (USD)

Derivatives in WDC

reported options exposure · as of Mar 31, 2026
CallValue
$105,841,114
CallShares
391,294
PutValue
$27,184,245
PutShares
100,500

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Computer Hardware

Technology · as of Mar 31, 2026

UBS Group AG holds $4,699,555,165 across 40 Computer Hardware names. WDC ranks #1 (24.1% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 WDC
Western Digital Corp
This page 		4,182,454 $1,131,311,981
2 ANET
Arista Networks, Inc.
 5,616,767 $689,626,648
3 LOGI
Logitech International S.A.
 7,359,459 $670,593,899
4 DELL
Dell Technologies Inc.
 3,212,485 $527,265,161
5 SNDK
Sandisk Corp
 713,138 $453,085,095
6 SMCI
Super Micro Computer, Inc.
 12,073,477 $274,913,068
7 STX
Seagate Technology Holdings plc
 632,683 $247,859,890
8 HPQ
Hp Inc
 12,658,848 $243,176,468

All Filings in WDC

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $27,184,245 100,500
2026-03-31 $1,131,311,981 4,182,454
2026-03-31 $105,841,114 391,294
2025-12-31 $783,969,929 4,550,821
2025-12-31 $39,294,787 228,100
2025-12-31 $49,407,036 286,800
2025-09-30 $880,039,317 7,329,996
2025-09-30 $40,304,142 335,700
2025-09-30 $36,042,012 300,200
2025-06-30 $731,227,550 11,427,216
2025-06-30 $4,850,442 75,800
2025-06-30 $14,090,598 220,200
2025-03-31 $9,100,793 225,100
2025-03-31 $690,918,332 17,089,249
2025-03-31 $2,308,553 57,100
2024-12-31 $11,655,567 258,600
2024-12-31 $13,251,109 294,000
2024-12-31 $364,623,423 8,089,835
2024-09-30 $16,465,982 319,000
2024-09-30 $325,863,905 6,313,051
2024-09-30 $16,734,393 324,200
2024-06-30 $6,540,393 114,200
2024-06-30 $369,860,645 6,458,034
2024-06-30 $17,232,963 300,900
2024-03-31 $10,553,206 204,600
2024-03-31 $19,043,225 369,200
2024-03-31 $313,097,855 6,070,176
2023-12-31 $14,056,384 355,100
2023-12-31 $227,335,998 5,743,085
2023-12-31 $20,005,905 505,400
2023-09-30 $195,249,447 5,661,078
2023-09-30 $11,626,511 337,100
2023-09-30 $13,006,103 377,100
2023-06-30 $6,906,530 240,900
2023-06-30 $6,189,788 215,900
2023-06-30 $57,763,481 2,014,792
2023-03-31 $26,312,084 924,100
2023-03-31 $106,686,344 3,746,904
2023-03-31 $5,361,503 188,300
2022-12-31 $114,396,546 4,797,044
2022-12-31 $15,975,306 669,900
2022-12-31 $5,999,980 251,600
2022-09-30 $100,583,464 4,088,227
2022-09-30 $9,536,200 387,600
2022-09-30 $16,147,080 656,300
2022-06-30 $201,166,280 5,936,718
2022-06-30 $2,575,267 76,000
2022-06-30 $1,531,606 45,200
2022-03-31 $5,449,109 145,200
2022-03-31 $4,728,565 126,000

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