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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 9 of 12 rows. Rows without a quote are marked unavailable.

1BRK/BBERKSHIRE HATHAWAY INC DELCUSIP 08467070223.37%-140,600$43.43MNo quoteNo quote
2AXPAMERICAN EXPRESS CO16.69%-210,000$31.03M$147.7552w: $130.65 - $199.55; reported $147.75
3BACBK OF AMERICA CORP13.68%-767,845$25.43M$33.1252w: $29.31 - $50.11; reported $33.12
4MAMASTERCARD INCORPORATED12.30%-65,750$22.86M$347.7352w: $276.87 - $399.92; reported $347.73
5RACEFERRARI N V9.22%-80,000$17.15M$214.3152w: $167.45 - $271.95; reported $214.31
6BRK/ABERKSHIRE HATHAWAY INC DELCUSIP 0846701087.57%-30$14.06MNo quoteNo quote
7MUMICRON TECHNOLOGY INC5.38%-200,000$10M$49.9852w: $48.43 - $98.45; reported $49.98
8MCOMOODYS CORP4.05%-27,000$7.52M$278.6352w: $230.16 - $392.53; reported $278.63
9SRGSERITAGE GROWTH PPTYS3.18%-500,000$5.92MNo quoteNo quote
10BABAALIBABA GROUP HLDG LTD2.25%-47,500$4.18M$88.0852w: $58.01 - $138.70; reported $88.08
11DJCODAILY JOURNAL CORP1.55%-11,500$2.88M$250.5252w: $236.01 - $389.90; reported $250.52
12GOOGLALPHABET INC0.76%Add +1900.0%16,000$1.41M$88.2552w: $83.34 - $151.55; reported $88.25