RIM Co-Founder Jim Balsillie Dumps Remaining Stock, BlackBerry Plunges

BlackBerry's (NASDAQ: BBRY ) co-founder Jim Balsillie has dumped his remaining stock in the firm. Shares plunged in the early hours of trading on Thursday, before correcting later in the session. The Waterloo, Ontario firm (that recently changed its name from Research in Motion to BlackBerry) was co-founded in