LONDON--(BUSINESS WIRE)--OM Asset Management (NYSE: OMAM) has been named a WorkWell Massachusetts Award program silver level winner for its exemplary work in worksite health promotion. WorkWell Massachusetts is a corporate award program created by the Worksite Wellness Council of Massachusetts (WWCMA) – a not-for-profit member organization dedicated to the advancement of worksite wellness programs. OMAM will be recognized at WWCMA’s Fourth Annual Worksite Wellness Conference to be held at Gille