PEAK6 LLC
- SEC CIK
- 0001389958
- Latest filing
- Aug 12, 2026
BRK.B holding history
Berkshire Hathaway Inc in every 13F filed by PEAK6 LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.
BRK.B overviewAll 13F holders of BRK.BFull Q2 2026 holdings
- Shares (Q2 2026)
- 18,325
- Value
- $9.17M
- % of portfolio
- 0.2%
- Quarters held
- 7
- Since Q4 2024
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q2 2026 | 18,325 | $9.17M | 0.2% | +17,068+1,357.8% | Added | Holders |
| Q1 2026 | 1,257 | $602.1K | <0.1% | −3,020−70.6% | Reduced | Holders |
| Q4 2025 | 4,277 | $2.15M | 0.1% | +3,162+283.6% | Added | Holders |
| Q3 2025 | 1,115 | $560.5K | <0.1% | −3,765−77.2% | Reduced | Holders |
| Q2 2025 | 4,880 | $2.37M | 0.1% | +4,877+162,566.7% | Added | Holders |
| Q1 2025 | 3 | $1.43K | <0.1% | 00.0% | Unchanged | Holders |
| Q4 2024 | 3 | $1.53K | <0.1% | – | No prior filing | Holders |