UK's Reach falls after CEO steps down
** Shares of Reach RCH.L down 4.9% at 72.1p - among the top losers on FTSE 250 index .FTMC ** CEO Jim Mullen steps down from role ** Daily Mirror publisher names Piers North, its current chief revenue officer, as the CEO effective immediately ** RCH has fallen about 9% so far this year (Reporting by Yamini Kalia in Bengaluru) ((Yamini.Kalia@thomsonreuters.com;))