Bill O'Brien

Bill O'Brien is an accomplished finance professional with extensive experience in leadership roles. Currently serving as Managing Director at GA Group since February 2006, Bill has also held the position of Associate Director at the same firm. Prior experience includes a tenure as Managing Director at B. Riley Financial, from February 2006 until December 2024, and as Revenue Manager at the Commonwealth of Massachusetts from September 2004 to February 2006. Earlier in the career, Bill was Team Leader at Deutsche Asset Management from 2000 to 2003. Bill holds an MBA in Finance from Bentley University's McCallum Graduate School of Business, where studies occurred from 2002 to 2004, and a bachelor's degree from the College of the Holy Cross, completed in 1998.