Aquamarine Zurich AG 13F Activity & Position Changes (Q4 2025)
As of Dec 31, 2025, the Aquamarine Zurich AG portfolio activity showed several notable changes in holdings, according to the latest SEC 13F filing reported on Jan 15, 2026. 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 Q4 2025, the filing reported:
New Buys - None reported
Increases - None reported
Reductions - American Express Company, Berkshire Hathaway Inc. New, Mastercard Incorporated, Ferrari
Complete Exits - Alpha Metallurgical Resources, , Alibaba Group Holding Limited, Bank of America Corporation, Core Natural Resources, Alphabet Inc., and 2 more
These updates highlight how the portfolio adjusted across different sectors and market conditions, offering insights into allocation shifts and investment trends.
| Date | Symbol | Type | Change Qty |
|---|---|---|---|
|
Q4 2025
|
AMR
Alpha Metallurgical Resources,
|
Sell - Position Exit |
-8,000
|
|
Q4 2025
|
AXP
American Express Company
|
Sell |
-145,000
|
|
Q4 2025
|
BABA
Alibaba Group Holding Limited
|
Sell - Position Exit |
-47,500
|
|
Q4 2025
|
BAC
Bank of America Corporation
|
Sell - Position Exit |
-767,845
|
|
Q4 2025
|
BRK-B
Berkshire Hathaway Inc. New
|
Sell |
-43,000
|
|
Q4 2025
|
CEIX
Core Natural Resources
|
Sell - Position Exit |
-10,740
|
|
Q4 2025
|
GOOGL
Alphabet Inc.
|
Sell - Position Exit |
-16,000
|
|
Q4 2025
|
MA
Mastercard Incorporated
|
Sell |
-25,750
|
|
Q4 2025
|
MU
Micron Technology, Inc.
|
Sell - Position Exit |
-80,000
|
|
Q4 2025
|
RACE
Ferrari
|
Sell |
-30,000
|
|
Q4 2025
|
SRG
Seritage Growth Properties
|
Sell - Position Exit |
-500,000
|
|
Q3 2025
|
CEIX
Core Natural Resources
|
Buy |
+2,640
|
|
Q3 2025
|
MU
Micron Technology, Inc.
|
Sell |
-120,000
|