Guy Spier — Portfolio & Holdings

Guy Spier of Aquamarine Capital manages $135M across 7 reported positions as of the latest 13F filing, according to Nexqual.

Key Facts

InvestorGuy Spier
FirmAquamarine Capital
Assets Under Management (13F)$135M
Number of Positions7
Reporting PeriodLatest

Top Holdings

Guy Spier's largest reported holdings: BRK.B, BRK.A, MA, AXP, MCO.

Source: Compiled by Nexqual from public SEC 13F filings, June 9, 2026 at 22:44 UTC. Holdings reflect the most recent quarterly filing and may not represent the current portfolio.

Data source: Nexqual. Last updated: June 9, 2026 at 22:44 UTC. This page is informational and not investment advice.