- Aquamarine Zurich AG Portfolio Balances (Dec 31, 2025)

As of Dec 31, 2025, the Aquamarine Zurich AG portfolio balances reported a total equity value of $147,543 across 7 publicly traded holdings. These balances reflect the most recent SEC 13F filing dated Jan 15, 2026, providing an updated snapshot of assets under management.

The portfolio balances highlight BERKSHIRE HATHAWAY INC DEL (BRK-B) as the single largest position, accounting for 33.3% of total equity value, followed by AMERICAN EXPRESS CO (AXP), MASTERCARD INCORPORATED (MA), BERKSHIRE HATHAWAY INC DEL (BRK-A), and others. Collectively, the top five holdings represent 89.7% of the portfolio, showing how capital is distributed among core positions and long-term investments.