Mark Kleinman was named senior managing director at Marathon Asset Management effective today, confirmed a spokesman for Marathon. The position is new. Mr. Kleinman will help oversee the firms strategic business development and other key initiatives, according to the spokesman. Marathon manages $11.7 billion in assets. Mr. Kleinman previously was global treasurer at JPMorgan Chase. JPMorgan spokeswoman Darlene Taylor could not be reached by press time for further information.