LONDON (Dow Jones)--Experian Plc (EXPN.LN), a global information services company, announced Monday it purchased 170,000 of its ordinary shares of 10 U.S. cents each at an average price of 647.1558 pence per share. MAIN FACTS: -The shares purchased will be held as treasury shares. -Shares closed Monday at 648.50 pence. -By Zechariah Hemans, Dow Jones Newswires; 44-20-7842-9411; [email protected] (END) Dow Jones Newswires July 19, 2010 11:46 ET (15:46 GMT)