Plus500 drops after executives plan to sell shares at a discount
** Shares in Plus500 PLUSP.L down 7.9% at 4,340p ** top pct loser on FTSE midcaps index .FTMC which is up 0.1% ** The multi-asset trading platform says CEO, CFO, CMO to sell 1.5 mln shares of co in aggregate ** Shares, representing 2.14% of co's issued capital, at 4,500 pence apiece ** Selling price at 4.5% discount to Monday's close ** Up to last close, stock up ~30% so far this year (Reporting by Prerna Bedi in Bengaluru) ((Prerna.Bedi@thomsonreuters.com ; +91 98052 24616))