Q3 2025 · 13F-HR
Aquamarine Zurich AGholdings as filed
Filed 2025-10-20 · accession 0001953324-25-000007
$317,370
Reported value
14
Positions
2025-09-30
Period end
Holdings as filed
| CUSIP | Ticker | Issuer | Value | % port. | Shares | Class | Voting |
|---|---|---|---|---|---|---|---|
| 084670702 | BRK/B | BERKSHIRE HATHAWAY INC DEL | $70,685 | 22.3% | 140,600 | Common | SOLE |
| 025816109 | AXP | AMERICAN EXPRESS CO | $69,754 | 22.0% | 210,000 | Common | SOLE |
| 060505104 | BAC | BANK AMERICA CORP | $39,613 | 12.5% | 767,845 | Common | SOLE |
| 57636Q104 | MA | MASTERCARD INCORPORATED | $37,399 | 11.8% | 65,750 | Common | SOLE |
| N3167Y103 | RACE | FERRARI N V | $28,978 | 9.13% | 60,000 | Common | SOLE |
| 084670108 | BRK/A | BERKSHIRE HATHAWAY INC DEL | $22,626 | 7.13% | 30 | Common | SOLE |
| 595112103 | MU | MICRON TECHNOLOGY INC | $13,386 | 4.22% | 80,000 | Common | SOLE |
| 615369105 | MCO | MOODYS CORP | $12,865 | 4.05% | 27,000 | Common | SOLE |
| 01609W102 | BABA | ALIBABA GROUP HLDG LTD | $8,490 | 2.68% | 47,500 | Common | SOLE |
| 233912104 | DJCO | DAILY JOURNAL CORP | $5,349 | 1.69% | 11,500 | Common | SOLE |
| 02079K305 | GOOGL | ALPHABET INC | $3,890 | 1.23% | 16,000 | Common | SOLE |
| 81752R100 | SRG | SERITAGE GROWTH PPTYS | $2,125 | 0.67% | 500,000 | Common | SOLE |
| 020764106 | AMR | ALPHA METALLURGICAL RESOUR I | $1,313 | 0.41% | 8,000 | Common | SOLE |
| 218937100 | CNR | CORE NATURAL RESOURCES INC | $897 | 0.28% | 10,740 | Common | SOLE |
Source: SEC EDGAR · raw 13F holdings as filed. The Class column shows the option type when reported (Put/Call) or Common when the issuer's equity is held directly. 13F discloses long positions only.