Professional Biography
Image of Jon Jacobs

Jon B. Jacobs Partner



Jon Jacobs is an antitrust litigator and trial lawyer.  He represents corporate and individual clients in civil and criminal antitrust investigations and cases.

For 27 years, Jon was a trial attorney with the U.S. Department of Justice, Antitrust Division, where he investigated and tried both civil and criminal cases. In 2011, he received the DOJ’s award that recognizes long-term achievements by outstanding antitrust litigators.

Jon has tried civil cases involving mergers and acquisitions, monopolization, exclusive dealing and information exchanges. He has led grand jury investigations and tried criminal cases involving price fixing, bid rigging and customer and market allocation. He has litigated cases in a wide variety of industries, with a particular focus in the healthcare and health insurance markets.

In 2016, Jon was the lead trial attorney in U.S. v. Anthem (D.D.C. 2016), the government's successful challenge of Anthem's proposed $54 billion merger with Cigna. Jon led a large team of lawyers under an expedited schedule, with trial starting only four months after the complaint was filed. 

In 2012, he was lead counsel for the economic gains issue in U.S. v. AU Optronics (N.D. Cal. 2012), the first time the government attempted to prove gains from a criminal price-fixing conspiracy under the Alternative Fine Statute. Jon's efforts led to the defendant corporation paying a $500 million fine.

Jon is currently a Vice Chair of the ABA Antitrust Section’s Cartel and Criminal Practice Committee.  He has taught trial and litigation advocacy with both the National Institute of Trial Advocacy (NITA) and the Department of Justice's National Advocacy Center (NAC). 

Jon maintains an active pro bono practice, representing immigrants in removal proceedings.  In 2018, he was named co-chair of the Washington D.C. office’s Pro Bono Committee.

Professional Recognition

  • Attorney General’s Distinguished Service Award, 2012
  • Hugh Morrison Award for long-term achievement by outstanding career litigator, 2011

Professional Leadership

  • Washington, D.C. Office Pro Bono Committee, Co-Chair, Oct. 2018 – present

  • American Bar Association, Antitrust Section, Member

  • American Bar Association, Antitrust Section, Cartel and Criminal Practice Committee, Vice Chair, Oct. 2018 – present

  • American Health Lawyers Association, Antitrust Practice Group, Member

  • National Institute of Trial Advocacy, Instructor

  • Federal Bar Association Thurgood Marshall Moot Court Competition, Judge
  • U.S. Department of Justice National Advocacy Center, Instructor

Related Employment

  • U.S. Department of Justice, Antitrust Division, Washington, D.C., Trial Attorney 1990 - 2017
  • U.S. Attorney's Office, Eastern District of Virginia, Alexandria, VA, Special Assistant U.S. Attorney, 1999
  • Pepper, Hamilton & Scheetz, Washington, D.C., Associate, 1986 - 1990





Bar and Court Admissions

  • District of Columbia
  • U.S. Supreme Court
  • U.S. Court of Appeals for the Fourth Circuit
  • U.S. Court of Appeals for the Fifth Circuit
  • U.S. Court of Appeals for the District of Columbia Circuit
  • U.S. District Court for the District of Columbia
  • U.S. District Court for the District of Maryland
  • U.S. District Court for the District of Puerto Rico
  • U.S. District Court for the Eastern District of Wisconsin


  • University of Michigan Law School, J.D., 1986
  • Michigan State University, B.A., with high honors, 1982


Bio In Other Languages

Simplified Chinese Bio | 中文简体