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Qube Research & Technologies Ltd

Position in WDC — Western Digital Corp

CIK 1729829 LONDON, X0

Position in WDC

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$585,022,170
+$585,022,170 QoQ
Shares Held
915,929
Ownership
0.254%
of shares outstanding
% of Portfolio
0.67%
of 13F equity value
Holder Rank
#46
of 1,836 holders
Holding Since
Dec 2020
19 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in WDC Over Time

Shares Held

Position Value (USD)

Derivatives in WDC

reported options exposure · as of Jun 30, 2026
CallValue
$16,798,336
CallShares
26,300
PutValue
$31,425,024
PutShares
49,200

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 Jun 30, 2026

Qube Research & Technologies Ltd holds $2,455,821,334 across 14 Computer Hardware names. WDC ranks #2 (23.8% of the industry book) .

# Ticker Company Shares Value (USD) Open
2 WDC
Western Digital Corp
This page
915,929 $585,022,170

All Filings in WDC

Export CSV
33 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $585,022,170 915,929
2026-06-30 $16,798,336 26,300
2026-06-30 $31,425,024 49,200
2026-03-31 $22,044,935 81,500
2026-03-31 $17,094,968 63,200
2025-12-31 $33,420,380 194,000
2025-12-31 $23,411,493 135,900
2025-09-30 $40,568,274 337,900
2025-09-30 $30,999,492 258,200
2025-06-30 $24,725,736 386,400
2025-06-30 $13,764,249 215,100
2025-03-31 $7,576,582 187,400
2025-03-31 $2,704,767 66,900
2024-12-31 $3,864,023 64,800
2024-12-31 $3,810,356 63,900
2024-12-31 $34,078,301 571,496
2024-09-30 $50,352,298 737,331
2024-09-30 $2,000,895 29,300
2024-09-30 $3,182,311 46,600
2024-06-30 $30,308 400
2024-06-30 $55,729,638 735,510
2024-03-31 $4,810,437 70,493
2023-12-31 $5,059,258 96,606
2023-12-31 $136,162 2,600
2023-12-31 $308,983 5,900
2023-09-30 $122,790 2,691
2022-12-31 $6,739,927 213,627
2022-06-30 $20,500,753 457,300
2022-03-31 $5,145,124 103,628
2021-09-30 $5,437,878 96,348
2021-06-30 $3,472,597 48,793
2021-03-31 $3,304,057 49,499
2020-12-31 $1,660,538 29,979