Aquamarine Zurich AG
Holdings as of 2026-06-30, filed 2026-07-10
This is history, not a current position. These holdings describe 2026-06-30, and the report became public 10 days later. The portfolio has changed since.
Aggregates
computed from the positions belowPositions reported
7
Value reported by manager
$144.1K
Sum of our stored positions
$144.1K
should match the line above
Disclosure lag
10 d
quarter end to filing
Top 5 concentration
87.5%
of the positions shown
New positions
0
vs previous quarter
Exited
0
vs previous quarter
Option positions
0
puts and calls
Positions
7 largest shown| Issuer | Class | Value | Shares | Type | CUSIP |
|---|---|---|---|---|---|
| BERKSHIRE HATHAWAY INC DEL | CL B NEW | $48.8K | 97,600 | — | 084670702 |
| BERKSHIRE HATHAWAY INC DEL | CL A | $22.5K | 30 | — | 084670108 |
| AMERICAN EXPRESS CO | COM | $22K | 65,000 | — | 025816109 |
| MASTERCARD INCORPORATED | CL A | $20.5K | 40,000 | — | 57636Q104 |
| MOODYS CORP | COM | $12.2K | 27,000 | — | 615369105 |
| FERRARI N V | COM | $11.1K | 30,000 | — | N3167Y103 |
| DAILY JOURNAL CORP | COM | $6.9K | 11,500 | — | 233912104 |
Values are shown exactly as filed. Before 2023 managers reported in thousands of dollars and afterwards in whole dollars; the reporting unit is not always determinable from the document, so nothing is converted automatically.
Source: U.S. Securities and Exchange Commission, Form 13F · as of 2026-07-10