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Guy Spier
CloseAquamarine Zurich AG
| History | Stock | % of Portfolio | Recent Activity | Shares | Reported Price* | Value | Current Price | +/- Reported Price | 52 Week Low | 52 Week High |
|---|---|---|---|---|---|---|---|---|---|---|
| ≡ | BRK.B - Berkshire Hathaway Class B | 33.25% | Reduce 30.58% | 97,600 | $502.65 | $49,059,000 | — | — | — | — |
| ≡ | AXP - American Express | 16.30% | Reduce 69.05% | 65,000 | $369.95 | $24,047,000 | $300.18 | -18.86% | $220.43 | $387.49 |
| ≡ | MA - Mastercard | 15.48% | Reduce 39.16% | 40,000 | $570.88 | $22,835,000 | $493.44 | -13.56% | $465.59 | $601.77 |
| ≡ | BRK/A - BERKSHIRE HATHAWAY INC DEL | 15.35% | Hold | 30 | $754,800.00 | $22,644,000 | — | — | — | — |
| ≡ | MCO - MOODYS CORP | 9.35% | Hold | 27,000 | $510.85 | $13,793,000 | $440.79 | -13.71% | $378.71 | $546.88 |
| ≡ | N3167Y103 - FERRARI NV | 6.48% | Reduce 50.00% | 30,000 | $318.70 | $9,561,000 | — | — | — | — |
| ≡ | DJCO - DAILY JOURNAL CORP | 3.80% | Hold | 11,500 | $487.30 | $5,604,000 | $517.94 | +6.29% | $348.63 | $674.75 |
7 visible rowsPrice data as of Apr 2, 2026
* Reported price is computed as filing value divided by reported shares.