Guy Spier · Aquamarine Zurich Ag
| Period: | Q1 2025 |
| Portfolio date: | Mar 31, 2025 |
| No. of stocks: | 14 |
| Portfolio value: | $294M |
Viewing historical Q1 2025 data. Holdings + moves reflect that quarter — not current.← Back to latest
| Stock | % of Portfolio | Recent Activity | Shares | Reported Price * | Value | Current Price | +/- Reported Price | 52 Week Low | 52 Week High |
|---|---|---|---|---|---|---|---|---|---|
| BRK-B · Berkshire Hathaway Inc. Del | 25.50 | New | 140,600 | $532.58 | $74,881,000 | $475.94 | -10.64% | $455.19 | $520.30 |
| AXP · American Express Co. | 19.24 | New | 210,000 | $269.05 | $56,501,000 | $316.03 | +17.46% | $281.46 | $387.49 |
| MA · Mastercard Inc. | 12.27 | New | 65,750 | $548.12 | $36,039,000 | $495.48 | -9.60% | $480.50 | $601.77 |
| BAC · Bank America Corp. | 10.91 | New | 767,845 | $41.73 | $32,042,000 | $51.31 | +22.96% | $42.35 | $57.55 |
| BRK-A · Berkshire Hathaway Inc. Del | 8.16 | New | 30 | $798433.33 | $23,953,000 | $717387.00 | -10.15% | $685150.00 | $779853.00 |
| RACE · Ferrari N V | 8.01 | New | 60,000 | $392.20 | $23,532,000 | $339.69 | -13.39% | $312.51 | $519.10 |
| MU · Micron Technology Inc. | 5.92 | New | 200,000 | $86.89 | $17,378,000 | $746.79 | +759.47% | $90.93 | $747.21 |
| MCO · Moodys Corp. | 4.28 | New | 27,000 | $465.70 | $12,574,000 | $451.32 | -3.09% | $402.28 | $546.88 |
| BABA · Alibaba Group Holding Limited | 2.14 | New | 47,500 | $132.23 | $6,281,000 | $140.06 | +5.92% | $103.71 | $192.67 |
| DJCO · Daily Journal Corp. | 1.56 | New | 11,500 | $397.74 | $4,574,000 | $500.97 | +25.95% | $348.63 | $674.75 |
| GOOGL · Alphabet Inc. | 0.84 | New | 16,000 | $154.63 | $2,474,000 | $400.71 | +159.15% | $156.16 | $402.00 |
| 81752R100 · Seritage Growth Pptys | 0.55 | New | 500,000 | $3.23 | $1,615,000 | — | — | — | — |
| AMR · Alpha Metallurgical Resour I | 0.34 | New | 8,000 | $125.25 | $1,002,000 | $184.11 | +46.99% | $97.41 | $253.82 |
| CNR · Core Natural Resources Inc. | 0.28 | New | 10,740 | $77.09 | $828,000 | $84.91 | +10.14% | $64.15 | $114.80 |
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held. Price columns + 52-week range are placeholders pending v2 price-data feed.
Sector % analysis
7 sectors represented
Whales with similar holdings to Guy Spier
Ranked by number of overlapping positions in current portfolios
Articles & Commentaries
Coming soon
Curated press + commentary about Guy Spier arrives in v2 — interviews, shareholder-letter highlights, and 13D/13G activist filings auto-aggregated from public sources.
Real-time alerts. We'll let you know when a whale you follow files a new 13F, or a stock you follow has insider activity. No weekly digest.
whalstreet
★ WatchlistData from SEC EDGAR · whalstreet.com