Holders — by stockHoldings — by fund
Aquamarine Zurich AG
Everything this manager disclosed owning in US-listed stocks — its complete Form 13F portfolio · as of 2026-06-30 · filed with the SEC up to 45 days after quarter end · CIK 0001953324
$144,091
disclosed book value
7
positions
33.9%
largest position share
Positions, as of 2026-06-30
top 7 of 7 · 13F covers long US-listed positions only — cash, bonds, private and foreign stakes are not disclosed · PUT/CALL tags = options positions (share-equivalents), not shares held
| # | Issuer | Shares | Value | % of book |
|---|---|---|---|---|
| 1 | BRK/BBERKSHIRE HATHAWAY INC DEL | 97,600 | $48,838 | 33.9% |
| 2 | BRK/ABERKSHIRE HATHAWAY INC DEL | 30 | $22,466 | 15.6% |
| 3 | AXPAMERICAN EXPRESS CO | 65,000 | $21,986 | 15.3% |
| 4 | MAMASTERCARD INCORPORATED | 40,000 | $20,544 | 14.3% |
| 5 | MCOMOODYS CORP | 27,000 | $12,229 | 8.5% |
| 6 | FERRARI N V | 30,000 | $11,114 | 7.7% |
| 7 | DJCODAILY JOURNAL CORP | 11,500 | $6,914 | 4.8% |
Source: SEC Form 13F-HR, reporting period 2026-06-30. Values are the manager's filed June-30-style quarter-end marks, not live prices. Research, not investment advice.