Position in WDC
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$75,102,359
+$20,457,454 QoQ
Shares Held
277,653
-12.5% QoQ
Ownership
0.081%
of shares outstanding
% of Portfolio
0.07%
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
$43,116,106
CallShares
159,400
PutValue
$80,335,530
PutShares
297,000
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 Mar 31, 2026MILLENNIUM MANAGEMENT LLC holds $1,228,493,894 across 18 Computer Hardware names. WDC ranks #4 (6.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | SNDK |
Sandisk Corp
|
1,142,295 | $725,745,705 | |
| 2 | HPQ |
Hp Inc
|
5,327,945 | $102,349,823 | |
| 3 | STX |
Seagate Technology Holdings plc
|
250,279 | $98,049,301 | |
| 4 | WDC |
Western Digital Corp
This page
|
277,653 | $75,102,359 | |
| 5 | ANET |
Arista Networks, Inc.
|
541,043 | $66,429,259 | |
| 6 | P |
Everpure, Inc.
|
920,636 | $54,354,349 | |
| 7 | DELL |
Dell Technologies Inc.
|
266,093 | $43,673,844 | |
| 8 | LOGI |
Logitech International S.A.
|
270,512 | $24,649,053 |
All Filings in WDC
Export CSV
50 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $80,335,530 | 297,000 | Put | Sole | 2026-05-15 | |
| 2026-03-31 | $75,102,359 | 277,653 | Shares | Sole | 2026-05-15 | |
| 2026-03-31 | $43,116,106 | 159,400 | Call | Sole | 2026-05-15 | |
| 2025-12-31 | $27,614,881 | 160,300 | Put | Sole | 2026-02-17 | |
| 2025-12-31 | $54,644,905 | 317,205 | Shares | Sole | 2026-02-17 | |
| 2025-12-31 | $51,198,644 | 297,200 | Call | Sole | 2026-02-17 | |
| 2025-09-30 | $147,892,909 | 1,231,825 | Shares | Sole | 2025-11-14 | |
| 2025-09-30 | $35,381,682 | 294,700 | Put | Sole | 2025-11-14 | |
| 2025-09-30 | $9,928,962 | 82,700 | Call | Sole | 2025-11-14 | |
| 2025-06-30 | $23,953,760 | 374,336 | Shares | Sole | 2025-08-14 | |
| 2025-06-30 | $22,185,333 | 346,700 | Put | Sole | 2025-08-14 | |
| 2025-06-30 | $7,294,860 | 114,000 | Call | Sole | 2025-08-14 | |
| 2025-03-31 | $15,169,336 | 375,200 | Call | Sole | 2025-05-15 | |
| 2025-03-31 | $3,458,786 | 85,550 | Shares | Sole | 2025-05-15 | |
| 2025-03-31 | $13,540,007 | 334,900 | Put | Sole | 2025-05-15 | |
| 2024-12-31 | $27,624,506 | 612,900 | Call | Sole | 2025-02-14 | |
| 2024-12-31 | $51,024,072 | 1,132,062 | Shares | Sole | 2025-02-14 | |
| 2024-12-31 | $8,640,264 | 191,700 | Put | Sole | 2025-02-14 | |
| 2024-09-30 | $14,587,105 | 282,600 | Put | Sole | 2024-11-14 | |
| 2024-09-30 | $8,300,094 | 160,800 | Call | Sole | 2024-11-14 | |
| 2024-09-30 | $135,314,037 | 2,621,476 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $22,576,385 | 394,200 | Put | Sole | 2024-08-14 | |
| 2024-06-30 | $6,208,219 | 108,400 | Call | Sole | 2024-08-14 | |
| 2024-06-30 | $287,004,911 | 5,011,313 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $9,237,924 | 179,100 | Call | Sole | 2024-05-15 | |
| 2024-03-31 | $31,241,824 | 605,700 | Put | Sole | 2024-05-15 | |
| 2024-03-31 | $246,148,902 | 4,772,205 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $45,585,279 | 1,151,600 | Put | Sole | 2024-02-14 | |
| 2023-12-31 | $414,982,840 | 10,483,521 | Shares | Sole | 2024-02-14 | |
| 2023-12-31 | $20,069,240 | 507,000 | Call | Sole | 2024-02-14 | |
| 2023-09-30 | $20,480,043 | 593,800 | Call | Sole | 2023-11-14 | |
| 2023-09-30 | $226,473,788 | 6,566,399 | Shares | Sole | 2023-11-14 | |
| 2023-09-30 | $39,749,494 | 1,152,500 | Put | Sole | 2023-11-14 | |
| 2023-06-30 | $189,476,413 | 6,608,943 | Shares | Sole | 2023-08-14 | |
| 2023-06-30 | $26,100,894 | 910,400 | Put | Sole | 2023-08-14 | |
| 2023-06-30 | $29,544,125 | 1,030,500 | Call | Sole | 2023-08-14 | |
| 2023-03-31 | $24,862,798 | 873,200 | Put | Sole | 2023-05-15 | |
| 2023-03-31 | $63,976,433 | 2,246,900 | Call | Sole | 2023-05-15 | |
| 2023-03-31 | $230,645,448 | 8,100,440 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $35,050,761 | 1,469,800 | Put | Sole | 2023-02-14 | |
| 2022-12-31 | $55,614,288 | 2,332,100 | Call | Sole | 2023-02-14 | |
| 2022-12-31 | $74,113,306 | 3,107,828 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $42,808,829 | 1,739,970 | Shares | Sole | 2022-11-14 | |
| 2022-09-30 | $21,188,275 | 861,200 | Call | Sole | 2022-11-14 | |
| 2022-09-30 | $64,758,082 | 2,632,100 | Put | Sole | 2022-11-14 | |
| 2022-06-30 | $92,286,069 | 2,723,500 | Put | Sole | 2022-08-15 | |
| 2022-06-30 | $84,055,616 | 2,480,607 | Shares | Sole | 2022-08-15 | |
| 2022-06-30 | $5,465,666 | 161,300 | Call | Sole | 2022-08-15 | |
| 2022-03-31 | $57,017,384 | 1,519,317 | Shares | Sole | 2022-05-16 | |
| 2022-03-31 | $95,171,768 | 2,536,000 | Put | Sole | 2022-05-16 | |
| No filing history on record for this holder in this stock. | ||||||