Robert A. Rosenfeld

Robert Rosenfeld, a partner in Orrick's San Francisco office, is the chair of the firm's Antitrust and Competition Group.

Mr. Rosenfeld's practice focuses on antitrust, complex commercial litigation and financial institutions. For the last 10 years, Mr. Rosenfeld has represented Microsoft Corporation in numerous antitrust proceedings in California and elsewhere in the United States and abroad. In addition, he provides advice regarding antitrust issues to companies in Silicon Valley.  He also has advised major health insurance companies and has litigated a number of cases involving the application of antitrust principles in the health care marketplace.

Mr. Rosenfeld’s practice also includes complex business litigation, principally on behalf of major financial institutions.  He has represented and counseled special litigation committees in the conduct of internal investigations and the prosecution and defense of derivative litigation.