 Alliancebernstein L.P. lifted its stake in Navient Corp NASDAQ:NAVI by 14.0 during the fourth quarter, according to its most recent disclosure with the Securities Exchange Commission. The fund owned 544,849 shares of the credit services providers stock after buying an additional 66,809 shares during the quarter. Alliancebernstein L.P. owned approximately 0.25 of Navient worth ... 