What Guy Spier Bought in Q4 2025
Aquamarine Capital Management · Quarterly 13F recap as filed with the SEC.
Period: 2025-12-31 · Filed · Historical
$147.5M
Total Value
7
Holdings
0
New Buys
2
Reduced
In Q4 2025, Guy Spier reported 7 long equity positions worth $147.5M in their Aquamarine Capital Management 13F filing and 2 increased positions.
| Rank | Ticker | Company | Shares | Value | % Portfolio | Change |
|---|---|---|---|---|---|---|
| 1 | BRK.B | Berkshire Hathaway Inc. Class B | 97600 | $49.1M | 33.25% | +-30.6% |
| 2 | AXP | AMERICAN EXPRESS CO | 65000 | $24.0M | 16.30% | +-69.0% |
| 3 | MA | MASTERCARD INCORPORATED | 40000 | $22.8M | 15.48% | -39.2% |
| 4 | BRK.A | Berkshire Hathaway Inc. Class A | 30 | $22.6M | 15.35% | — |
| 5 | MCO | MOODYS CORP | 27000 | $13.8M | 9.35% | — |
| 6 | RACE | FERRARI N V | 30000 | $9.6M | 6.48% | -50.0% |
| 7 | DJCO | DAILY JOURNAL CORP | 11500 | $5.6M | 3.80% | — |