Position in WDC
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$15,925,205
+$9,045,833 QoQ
Shares Held
24,933
-2.0% QoQ
Ownership
0.007%
of shares outstanding
% of Portfolio
2.20%
of 13F equity value
Holder Rank
#383
of 1,836 holders
Holding Since
Jun 2022
13 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
$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 Jun 30, 2026CSS LLC/IL holds $67,264,972 across 7 Computer Hardware names. WDC ranks #2 (23.7% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | SMCI |
Super Micro Computer, Inc.
|
901,662 | $46,320,022 | |
| 2 | WDC |
Western Digital Corp
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|
24,933 | $15,925,205 | |
| 3 | DELL |
Dell Technologies Inc.
|
4,850 | $2,092,581 | |
| 4 | HPQ |
Hp Inc
|
64,775 | $1,421,163 | |
| 5 | SNDK |
Sandisk Corp
|
610 | $1,386,975 | |
| 6 | ANET |
Arista Networks, Inc.
|
600 | $101,928 | |
| 7 | NNDM |
Nano Dimension Ltd.
|
11,792 | $17,098 |
All Filings in WDC
Export CSV
20 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $15,925,205 | 24,933 | Shares | Sole | 2026-08-14 | |
| 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 | $596,299 | 10,000 | Put | Sole | 2025-02-18 | |
| 2024-12-31 | $126,415 | 2,120 | Shares | Sole | 2025-02-18 | |
| 2024-09-30 | $682,899 | 10,000 | Put | Sole | 2024-11-14 | |
| 2024-06-30 | $303,080 | 4,000 | Call | Sole | 2024-08-14 | |
| 2024-06-30 | $757,700 | 10,000 | Put | Sole | 2024-08-14 | |
| 2024-03-31 | $2,006,254 | 29,400 | Put | Sole | 2024-05-15 | |
| 2024-03-31 | $110,685 | 1,622 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $953,134 | 18,200 | Put | Sole | 2024-02-14 | |
| 2022-09-30 | $308,151 | 9,467 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $446,820 | 9,967 | Shares | Sole | 2022-08-15 | |
| No filing history on record for this holder in this stock. | ||||||