Tom Gayner runs Markel Group, a conglomerate overseeing $12.54B in disclosed equity holdings (SEC CIK 0001096343). The latest portfolio (2025Q4) discloses 128 positions across 10 sectors, with the largest positions in GOOG, BRK.A and BRK.B. On a mark-to-market basis the tracked portfolio has returned 139.9% since 2016Q1. OpenStocks tracks 40 consecutive quarterly snapshots for this manager — every position change, new entry, and exit is logged below.
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We mark Tom Gayner (Markel Group)'s disclosed portfolio to current market prices and compare its growth against the S&P 500 (SPY). Tom’s portfolio is 139.9% since 2016Q1.