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Guy Spier 13F Holdings & Portfolio Activity
Review Guy Spier's current 13F holdings, portfolio weights, historical transactions, and position-level price context.
Guy Spier Top Current Holdings
Guy Spier's largest current 13F holdings indexed by Finoriq. Latest period 2026-03-31. Latest filing 2026-04-17. Reported value $135.3M.
| Rank | Holding | Value | Portfolio | Latest Filing |
|---|---|---|---|---|
| 1 | BRK/BBERKSHIRE HATHAWAY INC DELCL B NEW | 084670702 | $46.8M | 34.6% | 2026-04-17 |
| 2 | BRK/ABERKSHIRE HATHAWAY INC DELCL A | 084670108 | $21.5M | 15.9% | 2026-04-17 |
| 3 | MAMASTERCARD INCORPORATEDCL A | 57636Q104 | $20M | 14.8% | 2026-04-17 |
| 4 | AXPAMERICAN EXPRESS COCOM | 025816109 | $19.7M | 14.5% | 2026-04-17 |
| 5 | MCOMOODYS CORPCOM | 615369105 | $11.8M | 8.7% | 2026-04-17 |
| 6 | RACEFERRARI N VCOM | N3167Y103 | $10M | 7.4% | 2026-04-17 |
| 7 | DJCODAILY JOURNAL CORPCOM | 233912104 | $5.5M | 4.1% | 2026-04-17 |
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