Joel Greenblatt acquired 63.5 Thousand Berkshire Hathaway shares worth $26.5 Million. That's 0.41% of their equity portfolio (18th largest holding). The first Berkshire Hathaway trade was made in Q3 2013. Since then Joel Greenblatt bought shares 21 more times and sold shares on fourteen occasions. The stake costed the investor $13.9 Million, netting the investor a gain of 90% so far.