Wilson Sonsini Goodrich & Rosati has appointed four attorneys to partner. Dale R. Bish focuses on complex commercial, consumer and governmental matters involving fraud, advertising and more. Paul S. Jin advises clients on antitrust aspects of merger counseling. Dan Koeppen is a corporate and securities partner specializing in corporate governance, M&A and more. Andrea Agathoklis Murino is an antitrust partner specializing in representing clients under federal investigation.