Position in WDC
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$638,720
-$443,240 QoQ
Shares Held
1,000
-75.0% QoQ
Ownership
0.000%
of shares outstanding
% of Portfolio
0.03%
of 13F equity value
Holder Rank
#1,136
of 1,836 holders
Holding Since
Jun 2021
21 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, 2026CallValue
$15,968,000
CallShares
25,000
PutValue
$636,165,120
PutShares
996,000
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, 2026Caption Management, LLC holds $44,578,974 across 8 Computer Hardware names. WDC ranks #4 (1.4% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | SNDK |
Sandisk Corp
|
17,100 | $38,880,783 | |
| 2 | SMCI |
Super Micro Computer, Inc.
|
120,350 | $3,529,865 | |
| 3 | NNDM |
Nano Dimension Ltd.
|
475,000 | $688,750 | |
| 4 | WDC |
Western Digital Corp
This page
|
1,000 | $638,720 | |
| 5 | ANET |
Arista Networks, Inc.
|
3,600 | $611,568 | |
| 6 | DELL |
Dell Technologies Inc.
|
273 | $117,788 | |
| 7 | UMAC |
Unusual Machines, Inc.
|
5,000 | $111,500 | |
| 8 | RGTI |
Rigetti Computing, Inc.
|
302,256 | $0 |
All Filings in WDC
Export CSV
48 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $638,720 | 1,000 | Shares | Sole | 2026-08-14 | |
| 2026-06-30 | $636,165,120 | 996,000 | Put | Sole | 2026-08-14 | |
| 2026-06-30 | $15,968,000 | 25,000 | Call | Sole | 2026-08-14 | |
| 2026-03-31 | $54,098,000 | 200,000 | Put | Sole | 2026-05-15 | |
| 2026-03-31 | $1,081,960 | 4,000 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $17,605,994 | 102,200 | Shares | Sole | 2026-02-17 | |
| 2025-12-31 | $34,454,000 | 200,000 | Put | Sole | 2026-02-17 | |
| 2025-12-31 | $2,411,780 | 14,000 | Call | Sole | 2026-02-17 | |
| 2025-09-30 | $24,012,000 | 200,000 | Put | Sole | 2025-11-14 | |
| 2025-09-30 | $11,549,772 | 96,200 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $9,598,500 | 150,000 | Call | Sole | 2025-08-14 | |
| 2025-06-30 | $9,598,500 | 150,000 | Put | Sole | 2025-08-14 | |
| 2025-03-31 | $1,657,630 | 41,000 | Shares | Sole | 2025-05-15 | |
| 2025-03-31 | $3,638,700 | 90,000 | Put | Sole | 2025-05-15 | |
| 2025-03-31 | $18,597,800 | 460,000 | Call | Sole | 2025-05-15 | |
| 2024-12-31 | $5,396,514 | 90,500 | Shares | Sole | 2025-02-14 | |
| 2024-12-31 | $29,278,325 | 491,000 | Call | Sole | 2025-02-14 | |
| 2024-12-31 | $1,192,599 | 20,000 | Put | Sole | 2025-02-14 | |
| 2024-09-30 | $25,267,282 | 370,000 | Call | Sole | 2024-11-14 | |
| 2024-09-30 | $4,439,598 | 65,011 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $31,823,426 | 420,000 | Call | Sole | 2024-08-14 | |
| 2024-06-30 | $3,326,305 | 43,900 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $29,206,695 | 428,000 | Call | Sole | 2024-05-15 | |
| 2024-03-31 | $1,569,518 | 23,000 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $530,874 | 10,137 | Shares | Sole | 2024-02-14 | |
| 2023-12-31 | $14,401,757 | 275,000 | Call | Sole | 2024-02-14 | |
| 2023-09-30 | $9,992,971 | 219,000 | Call | Sole | 2023-11-14 | |
| 2023-09-30 | $2,007,720 | 44,000 | Put | Sole | 2023-11-14 | |
| 2023-06-30 | $6,637,752 | 175,000 | Call | Sole | 2023-08-14 | |
| 2023-06-30 | $4,422,639 | 116,600 | Put | Sole | 2023-08-14 | |
| 2023-06-30 | $1,672,713 | 44,100 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $501,388 | 13,310 | Shares | Sole | 2023-05-15 | |
| 2023-03-31 | $6,592,257 | 175,000 | Call | Sole | 2023-05-15 | |
| 2022-12-31 | $1,885,300 | 59,756 | Shares | Sole | 2023-02-14 | |
| 2022-12-31 | $13,408,740 | 425,000 | Call | Sole | 2023-02-14 | |
| 2022-09-30 | $8,137,508 | 250,000 | Call | Sole | 2022-11-14 | |
| 2022-09-30 | $14,875 | 457 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $1,246,273 | 27,800 | Put | Sole | 2022-08-15 | |
| 2022-06-30 | $1,044,538 | 23,300 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $3,684,025 | 74,200 | Put | Sole | 2022-05-13 | |
| 2022-03-31 | $1,971,102 | 39,700 | Shares | Sole | 2022-05-13 | |
| 2021-12-31 | $8,803,351 | 135,000 | Put | Sole | 2022-02-11 | |
| 2021-12-31 | $2,934,450 | 45,000 | Shares | Sole | 2022-02-11 | |
| 2021-09-30 | $25,787,424 | 456,900 | Put | Sole | 2021-11-12 | |
| 2021-09-30 | $17,456,883 | 309,300 | Call | Sole | 2021-11-12 | |
| 2021-09-30 | $13,589,052 | 240,770 | Shares | Sole | 2021-11-12 | |
| 2021-06-30 | $2,490,949 | 35,000 | Put | Sole | 2021-08-16 | |
| 2021-06-30 | $820,447 | 11,528 | Shares | Sole | 2021-08-16 | |
| No filing history on record for this holder in this stock. | ||||||