Katharine O’Connor focuses her practice on complex antitrust litigation, government investigations, defending mergers and acquisitions before antitrust enforcement agencies, and counseling clients on antitrust compliance issues. She has experience representing clients in a wide array of industries, including health care, manufacturing, food and finance
Katharine is a member of the firm’s antitrust and competition practice, which has been designated a “Global Elite” practice, one of the top 25 in the world, by Global Competition Review each year since 2013. She has been recognized by Legal 500 US and Super Lawyers as excelling in the field of antitrust.
Katharine has tried cases before juries, judges and arbitration panels, presented evidentiary hearings in federal and administrative courts, and argued before the US Court of Appeals for the Seventh Circuit, federal district courts and state courts.
While in law school, Katharine was the managing articles editor of the University of Illinois Law Review and a legal extern to Magistrate Judge David G. Bernthal of the US District Court for the Central District of Illinois
Education
University of Illinois College of Law, JD, summa cum laude, Order of the Coif, 2010
University of Chicago, BA, with honors, 2001
Admissions
Illinois
Courts/Agencies
US Court of Appeals for the Seventh Circuit
US District Court for the Central District of Illinois
US District Court for the Northern District of Illinois
US District Court for the Southern District of Illinois
US District Court for the Western District of Michigan
US District Court for the Eastern District of Wisconsin
Languages
English
Spanish
Partner | Chicago
Chicago: +1 312 984 3627
Chicago: +1 312 984 7700
June 25, 2018
June 13, 2017
November 30, 2018
November 29, 2018
March 3, 2018
January 18, 2018
September 9, 2015
Do not send any information or documents that you want to have treated as secret or confidential. Providing information to McDermott via email links on this website or other introductory email communications will not create an attorney-client relationship; will not preclude McDermott from representing any other person or firm in any matter; and will not obligate McDermott to keep confidential the information you provide. McDermott cannot enter into an attorney-client relationship with you until McDermott has determined that doing so will not create a conflict of interest and until you and McDermott have entered into a written agreement or engagement letter that sets forth the terms of our relationship.
We use cookies to improve the functionality and performance of this site. By continuing to use this site, you are providing us with your consent to our use of cookies. Please see our Privacy Policy for details.