本期 13F-HR 中的全部持仓，以及相对上季度的变化。
13F 持仓，最新季度
来源SEC EDGAR13F-HR
TETRAD CORP (CIK 883597) reported $1.05B across 3 reported positions in its SEC 13F filing for 2026-06-30. Largest positions: BRKB ($962.3M, 92.03%), USB ($42.9M, 4.10%), EPD ($40.4M, 3.87%). Source: SEC Form 13F.
| Rank | Ticker | Company | Value | % Portfolio | Shares | Action |
|---|---|---|---|---|---|---|
| 1 | BRKB | BERKSHIRE HATHAWAY INC DEL | $962.3M | 92.03% | 1.9M | Hold |
| 2 | USB | US BANCORP DEL | $42.9M | 4.10% | 710,000 | Hold |
| 3 | EPD | ENTERPRISE PRODS PARTNERS LP | $40.4M | 3.87% | 1.1M | Hold |
来源：SEC 13F 申报文件 · 截至 2026-06-30