 Alliancebernstein L.P. cut its stake in Exterran Corp NYSE:EXTN by 7.4 in the fourth quarter, according to its most recent Form 13F filing with the Securities Exchange Commission. The firm owned 51,200 shares of the energy companys stock after selling 4,100 shares during the quarter. Alliancebernstein L.P. owned 0.15 of Exterran worth 401,000 as ... 