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O'Melveny & Myers LLP

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Michael Tubach

Work +1 (415) 984-8876
O'Melveny & Myers LLP

Work Department

Antitrust and Competition.


Michael Tubach is managing partner of O’Melveny’s San Francisco office and a member of the White Collar Defense and Corporate Investigations and the Antitrust and Competition Practices. Michael focuses on civil litigation and white-collar criminal defense. He represents companies and individuals in criminal, antitrust, securities, and class action disputes and internal investigations. His trial experience includes over 35 trials and 20 appellate arguments. In addition, Michael has served as Chair of O’Melveny’s firmwide Pro Bono Committee.


Law Clerk, Honorable Stephen F. Williams, U.S. Court of Appeals, D.C. Circuit, 1989‑90 Bristow Fellow, Office of the Solicitor General, 1990-91 Assistant U.S. Attorney, U.S. Attorney's Office, Washington, D.C., 1991‑97 Lecturer, First-Year Criminal Law, Fall 2002, University of California, Berkeley, Boalt Hall School of Law; Guest Lecturer, White Collar Criminal Exposure from the Perspective of a Convicted Criminal, Stanford Law School, Spring 2004; Guest Lecturer, Defense and Prosecution of White Collar Crime (Insider Trading), Boalt Hall School of Law, Fall 2003, Fall 2004; Frequent panel speaker on various legal issues, including at the Practicing Law Institute, the Bar Association of San Francisco, and the California State Bar’s Antitrust Section.


Member, Judiciary Committee, Bar Association of San Francisco.


University of California at Berkeley, J.D., 1989: Order of the Coif; Executive Editor, California Law Review University of California at Berkeley, B.A., 1985: with distinction.

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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