Mr. Castano shares responsibility for business development, client service and consultant relations. Prior to joining GCM Grosvenor, from 2009 to 2010, he was head of business development at Sonar Capital Management, a long/short equity fund. From 2001 to 2009, he held a number of roles at Merrill Lynch, including head of high net worth sales for alternative investments, head of the product platform for the private banking group, and head of private equity or... (login for more professional bio)