NEW YORK--(BUSINESS WIRE)--BlackRock, Inc. (NYSE:BLK) announces the appointment of Andrew Ang, PhD, as a Managing Director and Head of the Factor-Based Strategies Group. In this role, Dr. Ang will lead BlackRock’s expansion in the emerging field of active investing via exposure to different risk premiums. BlackRock currently manages over $125 billion in client assets across a variety of factor-based products and strategies. Dr. Ang joins BlackRock from Columbia Business School, where he has foc