- $144M
- 7 holdings
- 2026 Q2
- +6.7% QoQ
- Top 5 87.5%
AUM over time
Book
| BRK.B, Berkshire Hathaway Class B | Reduce −30.6% | 97,600 | $502.65 | $49M | −43,000 | −$22M | |
| AXP, American Express | Reduce −69.0% | 65,000 | $369.95 | $24M | −145,000 | −$46M | |
| MA, Mastercard | Reduce −39.2% | 40,000 | $570.88 | $23M | −25,750 | −$15M | |
| BRK.A, Berkshire Hathaway Class A | Hold | 30 | $754,800 | $23M | — | — | |
| MCO, Moody's | Hold | 27,000 | $510.85 | $14M | — | — | |
| RACE, Ferrari | Reduce −50.0% | 30,000 | $318.70 | $9.6M | −30,000 | −$19M | |
| DJCO, Daily Journal | Hold | 11,500 | $487.30 | $5.6M | — | — |
Exits / last held
Gone since 2025 Q3, shown at their last reported size.
| Stock | % of portfolio | Recent activity | Shares | Reported price* | Value | Share change | $ change |
|---|---|---|---|---|---|---|---|
| BAC, Bank of America | Exit | 0 | $51.59 | $40M | −767,845 | −$40M | |
| MU, Micron Technology | Exit | 0 | $167.32 | $13M | −80,000 | −$13M | |
| BABA, Alibaba | Exit | 0 | $178.74 | $8.5M | −47,500 | −$8.5M | |
| GOOGL, Alphabet | Exit | 0 | $243.12 | $3.9M | −16,000 | −$3.9M | |
| SRG, Seritage Growth Properties | Exit | 0 | $4.25 | $2.1M | −500,000 | −$2.1M | |
| AMR, Alpha Metallurgical | Exit | 0 | $164.12 | $1.3M | −8,000 | −$1.3M | |
| CNR, Core Natural Resources | Exit | 0 | $83.52 | $897K | −10,740 | −$897K |
Filings history
20 periods, with AUM normalized
| Period | Holds | AUM | QoQ | Form | Filed | Filing ID |
|---|---|---|---|---|---|---|
| 2026 Q2 | 7 | $144M | +6.7% | 13F-HR | 7/10/2026 | 000195332426000003 |
| 2026 Q1 | 7 | $135M | −8.8% | 13F-HR | 4/17/2026 | 000195332426000002 |
| 2025 Q4 | 7 | $148M | −53.3% | 13F-HR | 1/15/2026 | 000195332426000001 |
| 2025 Q3 | 14 | $317M | +2.3% | 13F-HR | 10/20/2025 | 000195332425000007 |
| 2025 Q2 | 14 | $310M | — | RESTATEMENT | 7/18/2025 | 000195332425000006 |
| 2025 Q2 | 14 | $310M | +5.4% | 13F-HR | 7/16/2025 | 000195332425000004 |
| 2025 Q1 | 14 | $294M | — | RESTATEMENT | 7/18/2025 | 000195332425000005 |
| 2025 Q1 | 14 | $294M | +2.1% | 13F-HR | 4/11/2025 | 000195332425000003 |
| 2024 Q4 | 14 | $288M | +0.7% | 13F-HR | 1/24/2025 | 000195332425000001 |
| 2024 Q3 | 14 | $286M | +8.7% | 13F-HR | 10/16/2024 | 000195332424000005 |
| 2024 Q2 | 14 | $263M | +0.4% | 13F-HR | 7/11/2024 | 000195332424000004 |
| 2024 Q1 | 12 | $262M | +14.4% | 13F-HR | 4/18/2024 | 000195332424000003 |
| 2023 Q4 | 12 | $229M | +12.8% | 13F-HR | 2/1/2024 | 000195332424000002 |
| 2023 Q3 | 12 | $203M | −3.3% | 13F-HR | 10/12/2023 | 000195332423000004 |
| 2023 Q2 | 12 | $210M | +8.8% | 13F-HR | 7/13/2023 | 000195332423000003 |
| 2023 Q1 | 12 | $193M | +3.8% | 13F-HR | 4/18/2023 | 000195332423000002 |
| 2022 Q4 | 12 | $186M | +13.4% | 13F-HR | 1/27/2023 | 000195332423000001 |
| 2022 Q3 | 12 | $164M | — | 13F-HR | 11/8/2022 | 000195332422000001 |
| 2022 Q2 | 12 | $170M | −23.1% | 13F-HR | 8/2/2022 | 000140459922000005 |
| 2022 Q1 | 13 | $221M | +1.4% | 13F-HR | 5/12/2022 | 000140459922000002 |
| 2021 Q4 | 13 | $218M | +6.9% | 13F-HR | 2/7/2022 | 000140459922000001 |
| 2021 Q3 | 13 | $204M | — | 13F-HR | 10/28/2021 | 000140459921000006 |
About
Aquamarine Zurich AG
22 processed 13Fs on this site, 2021 Q3 to 2026 Q2