Position in WDC
as of Jun 30, 2026
· filed Jul 15, 2026
Position Value
$6,661,849
+$6,661,849 QoQ
Shares Held
10,430
Ownership
0.003%
of shares outstanding
% of Portfolio
2.27%
of 13F equity value
Holder Rank
#529
of 1,836 holders
Holding Since
Sep 2023
10 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 Sep 30, 2025CallValue
$0
CallShares
0
PutValue
$50,521,248
PutShares
420,800
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, 2026Portman Square Capital LLP holds $30,948,004 across 2 Computer Hardware names. WDC ranks #2 (21.5% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | STX |
Seagate Technology Holdings plc
|
25,167 | $24,286,155 | |
| 2 | WDC |
Western Digital Corp
This page
|
10,430 | $6,661,849 |
All Filings in WDC
Export CSV
21 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $6,661,849 | 10,430 | Shares | Sole | 2026-07-15 | |
| 2025-09-30 | $50,521,248 | 420,800 | Put | Sole | 2025-10-16 | |
| 2025-06-30 | $46,123,992 | 720,800 | Put | Sole | 2025-07-29 | |
| 2025-03-31 | $4,298,841 | 106,328 | Shares | Sole | 2025-05-02 | |
| 2025-03-31 | $2,223,650 | 55,000 | Put | Sole | 2025-05-02 | |
| 2024-12-31 | $4,973,141 | 83,400 | Call | Sole | 2025-01-16 | |
| 2024-12-31 | $6,877,365 | 115,334 | Shares | Sole | 2025-01-16 | |
| 2024-12-31 | $47,483,362 | 796,300 | Put | Sole | 2025-01-16 | |
| 2024-09-30 | $6,105,121 | 89,400 | Call | Sole | 2024-10-16 | |
| 2024-09-30 | $412,949 | 6,047 | Shares | Sole | 2024-10-16 | |
| 2024-09-30 | $49,749,230 | 728,500 | Put | Sole | 2024-10-16 | |
| 2024-06-30 | $6,773,843 | 89,400 | Call | Sole | 2024-07-19 | |
| 2024-06-30 | $37,013,675 | 488,500 | Put | Sole | 2024-07-19 | |
| 2024-03-31 | $8,257,033 | 121,000 | Call | Sole | 2024-04-15 | |
| 2024-03-31 | $56,570,912 | 829,000 | Put | Sole | 2024-04-15 | |
| 2024-03-31 | $585,089 | 8,574 | Shares | Sole | 2024-04-15 | |
| 2023-12-31 | $3,414,525 | 65,200 | Call | Sole | 2024-01-19 | |
| 2023-12-31 | $507,308 | 9,687 | Shares | Sole | 2024-01-19 | |
| 2023-12-31 | $23,021,864 | 439,600 | Put | Sole | 2024-01-19 | |
| 2023-09-30 | $4,521,933 | 99,100 | Put | Sole | 2023-10-30 | |
| 2023-09-30 | $1,533,168 | 33,600 | Call | Sole | 2023-10-30 | |
| No filing history on record for this holder in this stock. | ||||||