Tom Russo's position in Berkshire Hathaway is currently worth $611 Million. That's 6.17% 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 27 occasions. The investor's estimated purchase price is $657 Million, resulting in a loss of 7.1%.