Watertown, SDCIK 17760744 filings on record
Reported 13F value by quarter
Portfolio value trend — upgrade to see history
UpgradeLargest positions by weight
37 positions · Q4 2025
| # | Security | Shares | Value | % Port. | Δ Shares | Activity |
|---|---|---|---|---|---|---|
| 1 | Berkshire Hathaway Inc Del | 50 | $37.74M | 12.6% | 0 | Held |
| 2 | Ishares Tr | 312.4K | $25.76M | 8.6% | −31.4K | Reduced |
| 3 | Berkshire Hathaway Inc Del | 34.1K | $17.15M | 5.7% | +5.6K | Added |
| 4 | Invesco Exchange Traded Fd T |
| 63.2K |
| $12.11M |
| 4.0% |
| −6.4K |
| Reduced |
| 5 | Liberty Global Ltd | 1.04M | $11.53M | 3.8% | +31.0K | Added |
| 6 | Ishares Inc | 171.2K | $11.51M | 3.8% | −15.9K | Reduced |
| 7 | Siriusxm Holdings Inc | 552.0K | $11.04M | 3.7% | +16.2K | Added |
| 8 | Liberty Broadband Corp | 212.1K | $10.31M | 3.4% | +4.8K | Added |
| 9 | Chubb Limited | 32.0K | $10.03M | 3.3% | +1.8K | Added |
| 10 | Conocophillips | 106.6K | $9.98M | 3.3% | +5.8K | Added |
See this fund's complete portfolio, full position changes, and activity history.
Unlock full portfolio