Guy Spier's BRK.A Position Overview
Guy Spier (via Aquamarine Zurich Ag) currently holds 0 shares of Berkshire Hathaway Inc. (BRK.A) worth $0, representing 0.00% of the portfolio. First purchased in , this recently established position has been held for 0 quarters.
Based on recent 13F filings, Guy Spier has initiated a new position in BRK.A, representing a fresh investment thesis on this company.
Analysis based on 13F filings available since 2013 Q2
Guy Spier's Berkshire Hathaway (BRK.A) Holding Value Over Time
Track share changes against reported price movement
Quarterly Berkshire Hathaway (BRK.A) Trades by Guy Spier
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| No data available | ||||
Guy Spier's Berkshire Hathaway Investment FAQs
According to the latest 13F filing for Q4 2025, Guy Spier's firm, Aquamarine Zurich Ag, owns 30 shares of Berkshire Hathaway Inc. (BRK.A), valued at approximately $22.64 M.
As of the Q4 2025 filing, Berkshire Hathaway Inc. (BRK.A) represents approximately 15.35% of Guy Spier's publicly disclosed stock portfolio, making it one of their key holdings.
Guy Spier's peak holding in Berkshire Hathaway Inc. (BRK.A) was 30 shares, as reported at the end of Q4 2014.