- Aquamarine Zurich AG Portfolio Balances (Mar 31, 2026)

As of Mar 31, 2026, the Aquamarine Zurich AG portfolio balances reported a total equity value of $135,303 across 7 publicly traded holdings. These balances reflect the most recent SEC 13F filing dated Apr 17, 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 34.6% of total equity value, followed by BERKSHIRE HATHAWAY INC DEL (BRK-A), MASTERCARD INCORPORATED (MA), AMERICAN EXPRESS CO (AXP), and others. Collectively, the top five holdings represent 88.5% of the portfolio, showing how capital is distributed among core positions and long-term investments.