About James Thomas
James Thomas Greene is an attorney based in San Francisco, California — He has been a member of the State Bar of California since December 17, 1973. His license status is active, reflecting his ongoing commitment to the legal profession. Currently, Mr. Greene is employed at the U.S. Department of Justice, located at 450 Golden Gate Ave, Suite 10-0101, San Francisco, CA 94102-3431. His role there focuses on antitrust law, a field in which he has built a distinguished career. Mr. Greene earned his Juris Doctor from the University of California, Davis, School of Law in 1973.
Prior to that, he completed his Bachelor of Arts in Economics at the University of California, Berkeley, in 1970. This strong educational foundation laid the groundwork for his expertise in economic and legal matters. His academic background has been instrumental in shaping his approach to complex antitrust issues throughout his career. Throughout his professional journey, Mr. Greene has held several prominent positions in both state and federal legal entities. From 2003 to 2009, he served as the Chief of the Antitrust Section at the California Attorney General's Office, where he was responsible for overseeing significant antitrust investigations and litigation. In 2009, he was appointed as the Executive Director and Special Counsel at the same office, further solidifying his leadership role in antitrust enforcement. In 2010, he transitioned to the Federal Trade Commission, where he became Special Trial Counsel at the Bureau of Competition.
Since 2016, he has been a Trial Attorney for the Antitrust Division at the U.S. Department of Justice, continuing to influence antitrust policy at the national level. Mr. Greene's contributions extend beyond his professional roles; he has also been involved in legal education. He has served as an Adjunct Professor of Law and a Lecturer in Law, sharing his extensive knowledge of antitrust law with students. His commitment to education reflects his dedication to fostering the next generation of legal professionals. In addition to his teaching, Mr. Greene has been involved in significant legal cases that have shaped antitrust law.
He led successful challenges against major healthcare mergers in Idaho and Illinois during his tenure at the Federal Trade Commission. Notably, he successfully argued an appeal to the United States Supreme Court in California v. ARC America Corp. (1989) 490 U.S. 93, which vindicated indirect purchaser remedies under state antitrust law. His active membership in the California Lawyers Association, where he serves as a Board Representative for the Litigation Section and participates in their Executive Committee, further shows his commitment to the legal community. Mr. Greene's experience and contributions to antitrust law have established him as a respected figure in the legal field.
