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O'Melveny & Myers LLP

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Ian Simmons

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O'Melveny & Myers LLP

Work Department

Antitrust and Competition.


Ian Simmons is a partner in O’Melveny’s Washington, DC office and a member of the Antitrust and Competition Practice. An alumnus of the US Department of Justice, Antitrust Division, Ian’s focus is antitrust litigation, with a particular emphasis on cartel class actions and matters involving intellectual property. He has argued before the US Court of Appeals for the Third, Fourth, Seventh and Ninth Circuits and the highest courts in New York and South Dakota and has tried seven cases to verdict. He has been lead counsel in over twenty consolidated multi-district litigation (MDL) antitrust proceedings. In November 2011, Ian was named as one of Law 360's "2011 MVPs of the Year - Competition Practice" for his accomplishments for clients over the past year. Ian is currently lead counsel for Samsung Electronics Co. Ltd. and Samsung Electronics of America in antitrust actions involving Cathode Ray Tubes and Optical Disk Drives. He also is lead counsel for Asiana Airlines, Inc. in two MDL actions involving direct and indirect purchaser classes of air passengers and air cargo services. In April 2011, the US Court of Appeals for the Ninth Circuit, in what it called “a matter of first impression,” held that the Airline Deregulation Act of 1978 preempts state antitrust claims against foreign air carriers. See In re Korean Airlines, Co. Ltd. Antitrust Litigation, 642 F.3d. 685 (9th Cir. 2011). This appeal, argued by Ian, affirmed the district court. 567 F. Supp. 2d 1213 (C.D. Cal. 2008). Ian also represented Asiana in the grand jury antitrust investigation. Among his other representations are: two non-public grand jury investigations; Hynix Semiconductor Inc. in antitrust class actions and opt-out matters for alleged price fixing violations; Honeywell International Inc. in monopolization cases involving thermostats; and Phoenix Controls, another Honeywell entity, involving laboratory air flow systems. Ian also represented Sony Corporation in the LCD MDL litigation prior to Sony’s dismissal. Ian was lead counsel for Chemtura Corporation (formerly Crompton Corporation) in over 70 federal and state actions alleging price fixing and in federal MDL actions alleging conspiracies involving five different products and five separate time periods.


University of Pennsylvania, J.D., 1991 Yale University, M.A., 1988 McGill University, B.A., 1986.

United States: Antitrust


Within: Cartel

O’Melveny & Myers LLP is representing Bumble Bee Foods in a DOJ investigation and related class actions connected with its alleged participation in a price-fixing cartel in the packaged seafood space. In a separate matter, the firm advised Samsung on the Korean Fair Trade Commission’s investigation into Qualcomm’s licensing of mobile phone patents, and successfully opposed Qualcomm’s court application for highly sensitive information to be turned over to the KFTC in response to that investigation. Ian Simmons and Richard Parker jointly head the team, which includes Michael Tubach in San Francisco and Ted Hassi.

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Civil litigation/class actions

Within: Civil litigation/class actions

O’Melveny & Myers LLP’s ‘top-drawer’ team includes the ‘thoughtful and preparedMichael Tubach in San Francisco, who leverages his substantial experience of representing clients in cartel investigations to assist with associated class actions. Ben Bradshaw has antitrust litigation experience spanning industries such as aviation, healthcare and financial services. Practice co-chair Ian Simmons is working with Bradshaw to represent Asiana Airlines in an opt-out action brought by Schenker AG, which claims that there was a conspiracy among Asiana and multiple other airlines to inflate surcharges and base rates for air cargo shipping rates. Century City’s Bo Pearl is also recommended. The firm’s merger litigation work is another pillar of the practice; group co-chair Richard Parker, Ted Hassi, Michael Antalics and Katrina Robson acted as litigation counsel to Halliburton in its proposed $28bn acquisition of Baker Hughes, a deal that was eventually abandoned due to the strength of regulatory concerns in the US and EU. Named lawyers are based in Washington DC except where otherwise specified.

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