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Portfolio (Quarterly) Guide ↗

Aquamarine Zurich AG

· CIK 0001953324
13F Portfolio $144M AUM 7 positions Filed Jul 10, 2026 EDGAR ↗ ← All Funds
Q2 2026 Q1 2026 All
# Ticker Company Sector Shares Value ↓ % Port Chg Shares Chg % Period Price ① Since Period ①
1 BERKSHIRE HATHAWAY INC DEL 97,600.0 $48.8M 33.89% $500.39
2 BERKSHIRE HATHAWAY INC DEL 30.0 $22.5M 15.59% $748866.67
3 AXP AMERICAN EXPRESS CO Financial Services 65,000.0 $22.0M 15.26% $338.25 +5.0%
4 MA MASTERCARD INCORPORATED Financial Services 40,000.0 $20.5M 14.26% $513.60 +4.8%
5 MCO MOODYS CORP Financial Services 27,000.0 $12.2M 8.49% $452.93 +9.2%
6 RACE FERRARI N V Consumer Cyclical 30,000.0 $11.1M 7.71% $370.47 -0.3%
7 DJCO DAILY JOURNAL CORP Technology 11,500.0 $6.9M 4.80% $601.22 -5.5%

Period Price is the implied market price on the last day of the reporting period, calculated as reported value ÷ shares held. It is not the fund's purchase price or cost basis — the fund may have initiated or added to the position at any point during the quarter at a different price. Since Period shows the price change from that quarter-end snapshot to today's last price — it reflects stock movement after the report date, not the fund's actual return.

Sector Allocation
Financial Services 75.2%
Consumer Cyclical 15.3%
Technology 9.5%