Aquamarine Capital (Guy Spier) didn’t change any holdings against Q1 2026.
US holdings from the 13F
Q2 2026, filed 10 Jul 2026 (filing): 0 new, 0 added to, 0 trimmed, 0 sold out. Select a row to see it over time.How this works
Changes compare share counts with Q1 2026, adjusted for stock splits. Share classes of the same company are combined. Values are at quarter-end prices.
13F holdings with change from the previous quarter
Each bar is one 13F. Select a bar or press play to see that quarter’s 12 largest positions.How this works
Bars are split by share of the US portfolio: the six biggest holdings over the period in colour, everything else in grey. The last eight quarters are shown in full, earlier years at year end.
2015
2017
2019
2021
2023
Q4 ’24
Q2 ’25
Q4 ’25
Q2 ’26
BRK.BAXPMABACRACESTLAEverything else
2014: Berkshire Hathaway 18.5%, American Express 16.8%, Mastercard 3.8%, Bank of America 8.5%, Ferrari 0.0%, Stellantis 15.4%; 2015: Berkshire Hathaway 0.0%, American Express 0.0%, Mastercard 5.1%, Bank of America 0.0%, Ferrari 0.0%, Stellantis 22.4%; 2016: Berkshire Hathaway 20.3%, American Express 13.5%, Mastercard 4.5%, Bank of America 10.9%, Ferrari 7.8%, Stellantis 12.2%; 2017: Berkshire Hathaway 17.6%, American Express 13.0%, Mastercard 4.8%, Bank of America 11.0%, Ferrari 10.1%, Stellantis 17.1%; 2018: Berkshire Hathaway 21.3%, American Express 11.9%, Mastercard 7.0%, Bank of America 10.5%, Ferrari 11.2%, Stellantis 16.4%; 2019: Berkshire Hathaway 19.4%, American Express 12.7%, Mastercard 9.0%, Bank of America 12.4%, Ferrari 15.3%, Stellantis 13.6%; 2020: Berkshire Hathaway 25.1%, American Express 14.8%, Mastercard 13.7%, Bank of America 13.6%, Ferrari 10.8%, Stellantis 0.0%; 2021: Berkshire Hathaway 25.5%, American Express 15.8%, Mastercard 10.9%, Bank of America 15.7%, Ferrari 9.5%, Stellantis 0.0%; 2022: Berkshire Hathaway 30.9%, American Express 16.7%, Mastercard 12.3%, Bank of America 13.7%, Ferrari 9.2%, Stellantis 0.0%; 2023: Berkshire Hathaway 29.0%, American Express 17.2%, Mastercard 12.3%, Bank of America 11.3%, Ferrari 11.8%, Stellantis 0.0%; Q3 ’24: Berkshire Hathaway 29.9%, American Express 19.9%, Mastercard 11.4%, Bank of America 10.7%, Ferrari 9.8%, Stellantis 0.0%; Q4 ’24: Berkshire Hathaway 29.3%, American Express 21.7%, Mastercard 12.0%, Bank of America 11.7%, Ferrari 8.6%, Stellantis 0.0%; Q1 ’25: Berkshire Hathaway 33.6%, American Express 19.2%, Mastercard 12.3%, Bank of America 10.9%, Ferrari 8.0%, Stellantis 0.0%; Q2 ’25: Berkshire Hathaway 29.1%, American Express 21.6%, Mastercard 11.9%, Bank of America 11.7%, Ferrari 8.1%, Stellantis 0.0%; Q3 ’25: Berkshire Hathaway 29.4%, American Express 22.0%, Mastercard 11.8%, Bank of America 12.5%, Ferrari 9.1%, Stellantis 0.0%; Q4 ’25: Berkshire Hathaway 48.6%, American Express 16.3%, Mastercard 15.5%, Bank of America 0.0%, Ferrari 6.5%, Stellantis 0.0%; Q1 ’26: Berkshire Hathaway 50.5%, American Express 14.5%, Mastercard 14.8%, Bank of America 0.0%, Ferrari 7.4%, Stellantis 0.0%; Q2 ’26: Berkshire Hathaway 49.5%, American Express 15.3%, Mastercard 14.3%, Bank of America 0.0%, Ferrari 7.7%, Stellantis 0.0%