Ian Simmons

As co-chair of O’Melveny & Myers’s Antitrust and Competition Practice, Ian Simmons has been lead counsel in more than 30 multi-district litigation (MDL) antitrust proceedings and has achieved precedent-setting results. In addition to his extensive experience with cartel cases, Ian litigates matters involving intellectual property issues, including the competitive implications of standard essential patents and FRAND obligations. He pays particular attention to global economic pressures that may affect his clients and has taken more than 30 depositions of economists. An alumnus of the US Department of Justice Antitrust Division, Ian uses his prosecutorial skills to maximize his clients’ interests. He has argued before the US Court of Appeals for the Second, Third, Fourth, Seventh and Ninth Circuits and the highest courts in New York and South Dakota. Ian has tried seven cases to verdict. His efforts were recognized by Law360, which named Ian an MVP of the Year in Competition in 2011.