Q2 2025 · 13F-HR
Aquamarine Zurich AGholdings as filed
Filed 2025-07-16 · accession 0001953324-25-000004
$309,842
Reported value
14
Positions
2025-06-30
Period end
Holdings as filed
| CUSIP | Ticker | Issuer | Value | % port. | Shares | Class | Voting |
|---|---|---|---|---|---|---|---|
| 084670702 | BRK/B | BERKSHIRE HATHAWAY INC DEL | $68,299 | 22.0% | 140,600 | Common | SOLE |
| 025816109 | AXP | AMERICAN EXPRESS CO | $66,986 | 21.6% | 210,000 | Common | SOLE |
| 57636Q104 | MA | MASTERCARD INCORPORATED | $36,948 | 11.9% | 65,750 | Common | SOLE |
| 060505104 | BAC | BANK AMERICA CORP | $36,334 | 11.7% | 767,845 | Common | SOLE |
| N3167Y103 | RACE | FERRARI N V | $24,966 | 8.06% | 60,000 | Common | SOLE |
| 595112103 | MU | MICRON TECHNOLOGY INC | $24,650 | 7.96% | 200,000 | Common | SOLE |
| 084670108 | BRK/A | BERKSHIRE HATHAWAY INC DEL | $21,864 | 7.06% | 30 | Common | SOLE |
| 615369105 | MCO | MOODYS CORP | $13,543 | 4.37% | 27,000 | Common | SOLE |
| 01609W102 | BABA | ALIBABA GROUP HLDG LTD | $5,387 | 1.74% | 47,500 | Common | SOLE |
| 233912104 | DJCO | DAILY JOURNAL CORP | $4,856 | 1.57% | 11,500 | Common | SOLE |
| 02079K305 | GOOGL | ALPHABET INC | $2,820 | 0.91% | 16,000 | Common | SOLE |
| 81752R100 | SRG | SERITAGE GROWTH PPTYS | $1,540 | 0.50% | 500,000 | Common | SOLE |
| 020764106 | AMR | ALPHA METALLURGICAL RESOUR I | $900 | 0.29% | 8,000 | Common | SOLE |
| 218937100 | CNR | CORE NATURAL RESOURCES INC | $749 | 0.24% | 8,100 | 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.