[<a href="http://storify.com/dnickbiz/walgreens-enlists-social-media-in-fight-with-expre" mce_href="http://storify.com/dnickbiz/walgreens-enlists-social-media-in ...
Activist investor Carl Icahn will stop soliciting votes from Cigna shareholders against the insurer’s $54 billion takeover of Express Scripts, the billionaire investor said in an Aug. 13 statement.