Aquamarine Capital (Aquamarine Zurich)
In its 13F for Q1 2024 (holdings as of March 31, 2024, filed April 18, 2024), Guy Spier's Aquamarine Capital (Aquamarine Zurich) reported 12 stock positions worth $261.9 million. Its top holding was Berkshire Hathaway Class B (BRK.B) at 22.6% of the portfolio, followed by American Express (AXP, 18.3%) and Mastercard Class A (MA, 12.1%). Compared with Q4 2023, it reduced 1. The biggest sale was Ferrari (RACE, shares −25%).
- Most Recent 13F
- Q2 2026
- Notable People
- Guy Spier
- Location
- ZURICH, V8
- CIK
- 0001953324
- Portfolio Value
- $261.9M (Q1 2024)
- SEC Filing
- 0001953324-24-000003 ↗ filed Apr 18, 2024
Holdings Value
Holdings 12 stocks · $261.9M
| BRK.B Berkshire Hathaway Inc. Class B | 22.57% | 140,600 | $59.1M | No change |
| AXP American Express Co. | 18.25% | 210,000 | $47.8M | No change |
| MA Mastercard Inc. Class A | 12.09% | 65,750 | $31.7M | No change |
| BAC Bank of America Corp. filed as BANK AMERICA CORP | 11.12% | 767,845 | $29.1M | No change |
| RACE Ferrari NV | 9.99% | 60,000 | $26.2M | Reduce -25.0% |
| MU Micron Technology Inc. | 9.00% | 200,000 | $23.6M | No change |
| BRK.A Berkshire Hathaway Inc. Class A | 7.27% | 30 | $19.0M | No change |
| MCO Moody's Corp. | 4.05% | 27,000 | $10.6M | No change |
| SRG Seritage Growth Prop- A | 1.84% | 500,000 | $4.8M | No change |
| DJCO Daily Journal Corp. | 1.59% | 11,500 | $4.2M | No change |
| BABA Alibaba Group Holding-SP ADR | 1.31% | 47,500 | $3.4M | No change |
| GOOGL Alphabet Inc. Class A | 0.92% | 16,000 | $2.4M | No change |
Portfolio Sells Q4 2023 → Q1 2024
| RACE Ferrari NV | Reduce -25.0% | 9.99% | −1.80 |
Portfolio Buys Q4 2023 → Q1 2024
| None this quarter. | |||
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 7 | $144.1M | BRK.B, BRK.A, AXP, MA, MCO |
| Q1 2026 | 7 | $135.3M | BRK.B, BRK.A, MA, AXP, MCO |
| Q4 2025 | 7 | $147.5M | BRK.B, AXP, MA, BRK.A, MCO |
| Q3 2025 | 14 | $317.4M | BRK.B, AXP, BAC, MA, RACE |
| Q2 2025Amended | 14 | $309.8M | BRK.B, AXP, MA, BAC, RACE |
| Q1 2025Amended | 14 | $293.7M | BRK.B, AXP, MA, BAC, BRK.A |
| Q4 2024 | 14 | $287.6M | BRK.B, AXP, MA, BAC, RACE |
| Q3 2024 | 14 | $285.6M | BRK.B, AXP, MA, BAC, RACE |
| Q2 2024 | 14 | $262.6M | BRK.B, AXP, BAC, MA, MU |
| Q1 2024 | 12 | $261.9M | BRK.B, AXP, MA, BAC, RACE |