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Guy Spier - Aquamarine Capital

As of Q2 2026, this manager reported 7 long-equity positions worth $144.09M in aggregate.

As of Q2 2026, Guy Spier's Aquamarine Capital held 7 long-equity positions with a reported value of $144.09M.

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Updated 2026-06-06 from SEC 13F data.

Live quotes available for 7 of 14 rows. Rows without a quote are marked unavailable.

1BRK-BBERKSHIRE HATHAWAY INC DEL33.25%Reduce -30.6%97,600$49.06M$502.6552w: $440.10 - $542.07; reported $502.65
2AXPAMERICAN EXPRESS CO16.30%Reduce -69.0%65,000$24.05M$369.9552w: $220.43 - $387.49; reported $369.95
3MAMASTERCARD INCORPORATED15.48%Reduce -39.2%40,000$22.84M$570.8852w: $465.59 - $601.77; reported $570.88
4BRK-ABERKSHIRE HATHAWAY INC DEL15.35%-30$22.64M$754800.0052w: $660640.00 - $812855.00; reported $754800.00
5MCOMOODYS CORP9.35%-27,000$13.79M$510.8552w: $378.71 - $531.93; reported $510.85
6RACEFERRARI N V6.48%Reduce -50.0%30,000$9.56M$318.7052w: $356.93 - $519.10; reported $318.70
7DJCODAILY JOURNAL CORP3.80%-11,500$5.6M$487.3052w: $348.63 - $596.60; reported $487.30
14SRGSERITAGE GROWTH PPTYS-Sold0$0No quoteNo quote
13MUMICRON TECHNOLOGY INC-Sold0$0No quoteNo quote
12CNRCORE NATURAL RESOURCES INC-Sold0$0No quoteNo quote
11BACBANK AMERICA CORP-Sold0$0No quoteNo quote
10GOOGLALPHABET INC-Sold0$0No quoteNo quote
9AMRALPHA METALLURGICAL RESOUR I-Sold0$0No quoteNo quote
8BABAALIBABA GROUP HLDG LTD-Sold0$0No quoteNo quote