Aquamarine Capital Guy Spier

Top positions activity

Value History

Quarterly report: Q1 2026

Total portfolio value: $135.3K
TICKER CORP NAME VALUE($) SHARES +/- SHARES OWNERSHIP HISTORY
BRK.B
Berkshire Hathaway Inc. - Class B 46.8K 34.56% 97.6K =
BRK.A
Berkshire Hathaway Inc. - Class A 21.5K 15.92% 30 =
MA
Mastercard Incorporated - Class A 20.0K 14.77% 40.0K =
AXP
American Express Co. 19.7K 14.53% 65.0K =
MCO
Moody`s Corp. 11.8K 8.7% 27.0K =
RACE
Ferrari N.V. 10.0K 7.4% 30.0K =
DJCO
Daily Journal Corporation 5.5K 4.09% 11.5K =