Position in WDC
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$71,914,634
-$155,441,454 QoQ
Shares Held
265,868
-79.9% QoQ
Ownership
0.077%
of shares outstanding
% of Portfolio
0.06%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in WDC Over Time
Shares Held
Position Value (USD)
Derivatives in WDC
reported options exposure · as of Mar 31, 2026CallValue
$547,444,711
CallShares
2,023,900
PutValue
$962,457,518
PutShares
3,558,200
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 Mar 31, 2026CITADEL ADVISORS LLC holds $1,023,123,091 across 25 Computer Hardware names. WDC ranks #3 (7.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | SNDK |
Sandisk Corp
|
607,797 | $386,157,745 | |
| 2 | DELL |
Dell Technologies Inc.
|
1,458,564 | $239,394,109 | |
| 3 | WDC |
Western Digital Corp
This page
|
265,868 | $71,914,634 | |
| 4 | ANET |
Arista Networks, Inc.
|
527,148 | $64,723,231 | |
| 5 | P |
Everpure, Inc.
|
988,197 | $58,343,150 | |
| 6 | HPQ |
Hp Inc
|
2,637,468 | $50,665,759 | |
| 7 | STX |
Seagate Technology Holdings plc
|
110,745 | $43,385,461 | |
| 8 | SMCI |
Super Micro Computer, Inc.
|
1,627,721 | $37,063,206 |
All Filings in WDC
Export CSV
50 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $962,457,518 | 3,558,200 | Put | Defined | 2026-05-15 | |
| 2026-03-31 | $547,444,711 | 2,023,900 | Call | Defined | 2026-05-15 | |
| 2026-03-31 | $71,914,634 | 265,868 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $612,816,071 | 3,557,300 | Call | Defined | 2026-02-17 | |
| 2025-12-31 | $227,356,088 | 1,319,766 | Shares | Defined | 2026-02-17 | |
| 2025-12-31 | $909,378,876 | 5,278,800 | Put | Defined | 2026-02-17 | |
| 2025-09-30 | $447,536,376 | 3,727,606 | Shares | Defined | 2025-11-14 | |
| 2025-09-30 | $494,887,320 | 4,122,000 | Call | Defined | 2025-11-14 | |
| 2025-09-30 | $644,253,966 | 5,366,100 | Put | Defined | 2025-11-14 | |
| 2025-06-30 | $122,611,239 | 1,916,100 | Put | Defined | 2025-08-14 | |
| 2025-06-30 | $223,561,863 | 3,493,700 | Call | Defined | 2025-08-14 | |
| 2025-06-30 | $224,963,435 | 3,515,603 | Shares | Defined | 2025-08-14 | |
| 2025-03-31 | $157,552,960 | 3,896,932 | Shares | Defined | 2025-05-15 | |
| 2025-03-31 | $222,029,431 | 5,491,700 | Call | Defined | 2025-05-15 | |
| 2025-03-31 | $72,790,172 | 1,800,400 | Put | Defined | 2025-05-15 | |
| 2024-12-31 | $130,178,220 | 2,888,241 | Shares | Defined | 2025-02-14 | |
| 2024-12-31 | $206,712,796 | 4,586,300 | Call | Defined | 2025-02-14 | |
| 2024-12-31 | $88,034,239 | 1,953,200 | Put | Defined | 2025-02-14 | |
| 2024-09-30 | $98,661,689 | 1,911,400 | Put | Defined | 2024-11-14 | |
| 2024-09-30 | $81,940,716 | 1,587,460 | Shares | Defined | 2024-11-14 | |
| 2024-09-30 | $184,160,916 | 3,567,800 | Call | Defined | 2024-11-14 | |
| 2024-06-30 | $153,120,814 | 2,673,600 | Call | Defined | 2024-08-14 | |
| 2024-06-30 | $135,670,219 | 2,368,900 | Put | Defined | 2024-08-14 | |
| 2024-06-30 | $271,368,100 | 4,738,283 | Shares | Defined | 2024-08-14 | |
| 2024-03-31 | $298,762,981 | 5,792,259 | Shares | Defined | 2024-05-15 | |
| 2024-03-31 | $64,056,828 | 1,241,900 | Put | Defined | 2024-05-15 | |
| 2024-03-31 | $147,590,153 | 2,861,400 | Call | Defined | 2024-05-15 | |
| 2023-12-31 | $58,454,135 | 1,476,700 | Put | Defined | 2024-02-14 | |
| 2023-12-31 | $58,145,377 | 1,468,900 | Call | Defined | 2024-02-14 | |
| 2023-12-31 | $273,106,058 | 6,899,353 | Shares | Defined | 2024-02-14 | |
| 2023-09-30 | $26,305,370 | 762,700 | Put | Defined | 2023-11-14 | |
| 2023-09-30 | $14,972,021 | 434,100 | Call | Defined | 2023-11-14 | |
| 2023-09-30 | $181,897,273 | 5,273,944 | Shares | Defined | 2023-11-14 | |
| 2023-06-30 | $12,978,772 | 452,700 | Call | Defined | 2023-08-14 | |
| 2023-06-30 | $17,955,832 | 626,300 | Put | Defined | 2023-08-14 | |
| 2023-06-30 | $44,651,595 | 1,557,449 | Shares | Defined | 2023-08-14 | |
| 2023-03-31 | $32,681,538 | 1,147,800 | Call | Defined | 2023-05-15 | |
| 2023-03-31 | $23,470,258 | 824,293 | Shares | Defined | 2023-05-15 | |
| 2023-03-31 | $22,120,829 | 776,900 | Put | Defined | 2023-05-15 | |
| 2022-12-31 | $46,583,982 | 1,953,428 | Shares | Defined | 2023-02-14 | |
| 2022-12-31 | $25,309,139 | 1,061,300 | Put | Defined | 2023-02-14 | |
| 2022-12-31 | $25,130,284 | 1,053,800 | Call | Defined | 2023-02-14 | |
| 2022-09-30 | $19,950,734 | 810,900 | Put | Defined | 2022-11-14 | |
| 2022-09-30 | $39,222,421 | 1,594,200 | Call | Defined | 2022-11-14 | |
| 2022-09-30 | $28,639,551 | 1,164,058 | Shares | Defined | 2022-11-14 | |
| 2022-06-30 | $76,390,569 | 2,254,400 | Call | Defined | 2022-08-15 | |
| 2022-06-30 | $18,541,452 | 547,186 | Shares | Defined | 2022-08-15 | |
| 2022-06-30 | $39,991,194 | 1,180,200 | Put | Defined | 2022-08-15 | |
| 2022-03-31 | $65,276,199 | 1,739,386 | Shares | Defined | 2022-05-16 | |
| 2022-03-31 | $33,730,436 | 898,800 | Put | Defined | 2022-05-16 | |
| No filing history on record for this holder in this stock. | ||||||