Tom Gayner's position in W.R. Berkley is currently worth $3.2 Million. That's 0.03% of their equity portfolio (116th largest holding). Tom Gayner acquired their 40.5 Thousand shares between 2017 and 2019. So far they never sold any shares in the company. The stake costed the investor $1.22 Million, netting the investor a gain of 162% so far.