Group One Trading, L.P.
- SEC CIK
- 0000932540
- Latest filing
- Aug 13, 2026
WDC holding history
Western Digital Corp in every 13F filed by Group One Trading, L.P., including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.
WDC overviewAll 13F holders of WDCFull Q2 2026 holdings
- Shares (Q2 2026)
- 23,641
- Value
- $15.1M
- % of portfolio
- 0.4%
- Quarters held
- 9
- Since Q1 2024
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q2 2026 | 23,641 | $15.1M | 0.4% | +23,641 | New | Holders |
| Q1 2026 | 0 | $0 | 0.0% | −68,783−100.0% | Sold out | Holders |
| Q4 2025 | 68,783 | $11.8M | 0.4% | +45,805+199.3% | Added | Holders |
| Q3 2025 | 22,978 | $2.76M | 0.1% | −40,173−63.6% | Reduced | Holders |
| Q2 2025 | 63,151 | $4.04M | 0.1% | +20,122+46.8% | Added | Holders |
| Q1 2025 | 43,029 | $1.74M | 0.1% | +2,543+6.3% | Added | Holders |
| Q4 2024 | 40,486 | $2.41M | 0.1% | +1,138+2.9% | Added | Holders |
| Q3 2024 | 39,348 | $2.69M | 0.1% | +5,749+17.1% | Added | Holders |
| Q2 2024 | 33,599 | $2.55M | 0.1% | −3,653−9.8% | Reduced | Holders |
| Q1 2024 | 37,252 | $2.54M | 0.1% | +37,252 | New | Holders |