Tom Gayner's BRK.B Position Overview
Tom Gayner (via Markel Group Inc.) currently holds 1.53 M shares of Berkshire Hathaway Inc. (BRK.B) worth $770.05 M, representing 6.14% of the portfolio. First purchased in 2013-Q2, this long-term strategic position has been held for 51 quarters.
Based on 13F filings since 2013, Tom Gayner has maintained a long-term strategic position in BRK.B, representing a significant commitment to this investment thesis. Largest addition occurred in Q1 2020, adding 5,330 shares. Largest reduction occurred in Q3 2013, reducing 18,838 shares.
Analysis based on 13F filings available since 2013 Q2
Tom Gayner's Berkshire Hathaway (BRK.B) Holding Value Over Time
Track share changes against reported price movement
Quarterly Berkshire Hathaway (BRK.B) Trades by Tom Gayner
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q4 2020 | +284 | Add 0.02% | 1.53 M | $231.87 |
| Q1 2020 | +5,330 | Add 0.35% | 1.53 M | $182.83 |
| Q4 2019 | +1,200 | Add 0.08% | 1.53 M | $226.50 |
| Q3 2019 | +2,170 | Add 0.14% | 1.53 M | $208.02 |
| Q2 2019 | +1,870 | Add 0.12% | 1.52 M | $213.17 |
| Q1 2019 | +2,370 | Add 0.16% | 1.52 M | $200.89 |
| Q4 2018 | +1,650 | Add 0.11% | 1.52 M | $204.18 |
| Q3 2018 | +2,065 | Add 0.14% | 1.52 M | $214.11 |
| Q2 2018 | +2,330 | Add 0.15% | 1.52 M | $186.65 |
| Q1 2018 | +1,095 | Add 0.07% | 1.51 M | $199.48 |
| Q1 2014 | -15,650 | Reduce 1.02% | 1.51 M | $124.97 |
| Q4 2013 | -4,100 | Reduce 0.27% | 1.53 M | $118.56 |
| Q3 2013 | -18,838 | Reduce 1.22% | 1.53 M | $113.51 |
| Q2 2013 | +1.55 M | Add 0.00% | 1.55 M | $111.92 |
Tom Gayner's Berkshire Hathaway Investment FAQs
Tom Gayner first purchased Berkshire Hathaway Inc. (BRK.B) in Q2 2013, acquiring 1,550,195 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Tom Gayner has held Berkshire Hathaway Inc. (BRK.B) for 51 quarters since Q2 2013.
Tom Gayner's largest addition to Berkshire Hathaway Inc. (BRK.B) was in Q2 2013, adding 1,550,195 shares worth $173.5 M.
According to the latest 13F filing for Q4 2025, Tom Gayner's firm, Markel Group Inc., owns 1,531,971 shares of Berkshire Hathaway Inc. (BRK.B), valued at approximately $770.05 M.
As of the Q4 2025 filing, Berkshire Hathaway Inc. (BRK.B) represents approximately 6.14% of Tom Gayner's publicly disclosed stock portfolio, making it one of their key holdings.
Tom Gayner's peak holding in Berkshire Hathaway Inc. (BRK.B) was 1,550,195 shares, as reported at the end of Q2 2013.