UPDATE 1-Activist U.S. investor seeks support for Vivendi campaign
March 24, 2015 at 09:57 AM EDT
PARIS, March 24 (Reuters) - U.S. hedge fund P. Schoenfeld Asset Management (PSAM) is to call on other shareholders in Vivendi to join a campaign to persuade the French media group to pay them more of the proceeds of recent asset sales.