Aquamarine Zurich AG 13F Activity & Position Changes (Q3 2025)
As of Sep 30, 2025, the Aquamarine Zurich AG portfolio activity showed several notable changes in holdings, according to the latest SEC 13F filing reported on Oct 20, 2025. The activity included new positions, additions to existing holdings, reductions, and complete exits, providing a clear view of how the portfolio evolved during the quarter.
During Q3 2025, the filing reported:
New Buys - None reported
Increases - Core Natural Resources
Reductions - Micron Technology, Inc.
Complete Exits - None reported
These updates highlight how the portfolio adjusted across different sectors and market conditions, offering insights into allocation shifts and investment trends.