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CAPSTONE INVESTMENT ADVISORS, LLC

Position in WDC — Western Digital Corp

CIK 1426196 NEW YORK, NY

Position in WDC

as of Jun 30, 2026 · filed Aug 17, 2026
Position Value
$608,061
-$1,508,523 QoQ
Shares Held
952
-87.8% QoQ
Ownership
0.000%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#1,151
of 1,836 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 0% Shared 100% 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
$5,237,504
CallShares
8,200
PutValue
$37,684,480
PutShares
59,000

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

CAPSTONE INVESTMENT ADVISORS, LLC holds $76,886,223 across 6 Computer Hardware names. WDC ranks #6 (0.8% of the industry book) .

# Ticker Company Shares Value (USD) Open
6 WDC
Western Digital Corp
This page
952 $608,061

All Filings in WDC

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $5,237,504 8,200
2026-06-30 $37,684,480 59,000
2026-06-30 $608,061 952
2026-03-31 $12,604,834 46,600
2026-03-31 $2,353,263 8,700
2026-03-31 $2,116,584 7,825
2025-12-31 $499,927 2,902
2025-12-31 $2,050,013 11,900
2025-12-31 $15,159,760 88,000
2025-09-30 $1,248,624 10,400
2025-09-30 $6,243,120 52,000
2025-06-30 $985,446 15,400
2025-06-30 $371,142 5,800
2025-03-31 $2,312,596 57,200
2025-03-31 $583,283 14,427
2025-03-31 $2,619,864 64,800
2024-12-31 $4,048,876 67,900
2024-12-31 $4,108,506 68,900
2024-12-31 $121,585 2,039
2024-09-30 $710,215 10,400
2024-09-30 $3,107,192 45,500
2024-09-30 $184,792 2,706
2024-06-30 $3,470,268 45,800
2024-06-30 $833,470 11,000
2024-03-31 $823,860 12,073
2024-03-31 $648,279 9,500
2024-03-31 $2,872,901 42,100
2023-12-31 $4,053,440 77,400
2023-12-31 $307,831 5,878
2023-12-31 $1,146,903 21,900
2023-09-30 $611,442 13,400
2023-09-30 $2,359,071 51,700
2023-06-30 $1,445,133 38,100
2023-06-30 $322,215 8,495
2023-06-30 $352,749 9,300
2023-03-31 $316,428 8,400
2023-03-31 $221,914 5,891
2023-03-31 $1,062,295 28,200
2022-12-31 $233,469 7,400
2022-12-31 $152,607 4,837
2022-12-31 $141,974 4,500
2022-09-30 $3,316,848 101,900
2022-09-30 $2,818,898 86,602
2022-09-30 $113,925 3,500
2022-06-30 $1,859,592 41,481
2022-06-30 $4,751,978 106,000
2022-06-30 $161,387 3,600
2022-03-31 $1,325,653 26,700
2022-03-31 $3,788,091 76,296
2022-03-31 $11,076,901 223,100