MPO~ Billionaire Steven Cohen increased shares to 7.1% from 5% http://www.sec.gov/Archives/edgar/data/1533924/000089914015000076/m13492666a.htm Cohen was holding 5% of shares last year. http://www.insidermonkey.com/blog/billionaire-steven-cohen-initiates-position-in-midstates-petroleum-company-inc-mpo-boosts-stake-in-zynga-inc-znga-318719/