Position in WDC
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$6,879,372
+$19,064 QoQ
Shares Held
25,433
-36.1% QoQ
Ownership
0.007%
of shares outstanding
% of Portfolio
1.37%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Jun 2022
12 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 Sep 30, 2025CallValue
$0
CallShares
0
PutValue
$1,200,600
PutShares
10,000
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, 2026CSS LLC/IL holds $10,847,431 across 6 Computer Hardware names. WDC ranks #1 (63.4% of the industry book) .
All Filings in WDC
Export CSV
19 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $6,879,372 | 25,433 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $6,860,308 | 39,823 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $1,200,600 | 10,000 | Put | Sole | 2025-11-13 | |
| 2025-09-30 | $4,652,685 | 38,753 | Shares | Sole | 2025-11-13 | |
| 2025-06-30 | $639,900 | 10,000 | Put | Sole | 2025-08-14 | |
| 2025-06-30 | $862,585 | 13,480 | Shares | Sole | 2025-08-14 | |
| 2025-06-30 | $934,254 | 14,600 | Call | Sole | 2025-08-14 | |
| 2025-03-31 | $404,300 | 10,000 | Put | Sole | 2025-05-15 | |
| 2025-03-31 | $714,398 | 17,670 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $450,718 | 10,000 | Put | Sole | 2025-02-18 | |
| 2024-12-31 | $95,552 | 2,120 | Shares | Sole | 2025-02-18 | |
| 2024-09-30 | $516,175 | 10,000 | Put | Sole | 2024-11-14 | |
| 2024-06-30 | $229,085 | 4,000 | Call | Sole | 2024-08-14 | |
| 2024-06-30 | $572,714 | 10,000 | Put | Sole | 2024-08-14 | |
| 2024-03-31 | $1,516,443 | 29,400 | Put | Sole | 2024-05-15 | |
| 2024-03-31 | $83,662 | 1,622 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $720,434 | 18,200 | Put | Sole | 2024-02-14 | |
| 2022-09-30 | $232,918 | 9,467 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $337,732 | 9,967 | Shares | Sole | 2022-08-15 | |
| No filing history on record for this holder in this stock. | ||||||