Last week, multiple fund managers released their 13F filings for the second quarter, revealing their latest stock buys and sells. Like every quarter, there were some surprise contrarian bets that funds made during Q2. In this article, we’ll discuss three underperforming stocks that perhaps got too cheap for fund managers to ignore. To start, we’ll look at Berkshire Hathaway’s (BRK.B) 13F. The company is run by the legendary Warren Buffett, who has been a net seller (i.e., more sells than buys) of stocks for 7 straight quarters. The stock sales, which have included trimming stakes in top holdin…