William Rinner is Senior Regulatory Counsel at Apollo Global Management Inc. since 2020. He was previously Counsel to the Assistant Attorney General, joining the Antitrust Division in September 2017. Among other responsibilities, he has advised the Assistant Attorney General on matters in the Appellate, Healthcare and Consumer Products, and Competition Policy and Advocacy sections, as well as on policy issues involving technology and intellectual property. Before joining the Division, Bill was an antitrust litigator in private practice in Washington, D.C. Bill previously clerked for the Honorable Richard Posner of the United States Court of Appeals for the Seventh Circuit. Bill is a graduate of Yale Law School and University of Notre Dame.

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