Steven Cohen, SAC Capital Advisors -- Stanford, Conn.-based SAC bought 807,401 shares to bring its total to 1.1 million. Barry Rosenstein, Jana Partners-- The activist hedge fund added 23,307 shares to bring its total to 258,777. David Tepper, Appaloosa Management-- Appaloosa increased its stake three-fold in Apple during the fourth quarter by adding 143,731 shares to finish the year with 181,850 shares. --Written by Olivia Oran in New York. >To follow the writer on Twitter, go to http://twitter.com/Ozoran. >To submit a news tip, send an email to: firstname.lastname@example.org.