Tom Russo's position in Berkshire Hathaway is currently worth $642 Million. That's 6.18% of their entire equity portfolio (7th largest holding). The first Berkshire Hathaway trade was made in Q4 2009. Since then Tom Russo bought shares 30 more times and sold shares on 26 occasions. The investor's estimated purchase price is $705 Million, resulting in a loss of 8.9%.