Aquamarine Zurich AG has filed a Form 13F-HR with the U.S. Securities and Exchange Commission, disclosing its equity holdings as of September 30, 2026. The filing lists David Jud, the company's Chief Operating Officer and Chief Financial Officer, as the authorized signatory.
The report details a portfolio consisting of seven distinct equity positions. The largest holding in the portfolio is American Express Company, for which Aquamarine Zurich AG holds 65,000 shares. The firm also holds significant positions in Mastercard Incorporated Class A, with 40,000 shares, and Ferrari N.V., with 30,000 shares.
Aquamarine Zurich AG's equity portfolio includes stakes in Moody's Corporation, with 27,000 shares, and Daily Journal Corporation, with 11,500 shares. The filing also lists positions in Berkshire Hathaway Inc. Class A and Class B, with 30 and 97,600 shares, respectively. All positions are listed as sole voting power.
