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Michael Sennett (Mike)
Of Counsel


(T) +1.312.269.4243
(F) +1.312.782.8585


  • Loyola University Chicago (J.D. cum laude 1977; Executive Editor, Law Journal); Quincy University (A.B. with honors 1973)

Bar Admissions

  • Illinois; U.S. Supreme Court; U.S. Courts of Appeals for the Second, Third, Fifth, Seventh, Eighth, Ninth, Tenth, Eleventh, District of Columbia, and Federal Circuits; U.S. District Courts for the Northern District of Illinois (Trial Bar) and Eastern District of Wisconsin; and pro hac vice in numerous federal and state courts

Mike Sennett has practiced antitrust law for more than 40 years, with an emphasis on the antitrust aspects of mergers and acquisitions (U.S. and globally), antitrust litigation, and the defense of government antitrust investigations and enforcement matters. He appears regularly before the United States Department of Justice, Federal Trade Commission, and state attorneys general as well as in complex antitrust cases in courts throughout the United States. Mike has extensive experience counseling clients on the antitrust aspects of intellectual property licensing and related patent matters, strategic alliances and collaborations, pricing and price discrimination, distribution, advertising, and marketing practices.

Mike serves as antitrust counsel to a number of multinational corporations and businesses operating domestically and internationally. His industry experience includes pharmaceuticals, biotechnologies, medical devices, pharmaceutical benefit services, steel, automotive, building products, farm and industrial equipment, consumer products, minerals and mining, water and wastewater technologies and health care services, product distribution, transportation, financial services, and communications.

Mike is on the adjunct law faculty at Loyola University Chicago where he teaches antitrust law. He serves on the board of advisors of the Institute for Consumer Antitrust Law Studies and the Midwest Antitrust Colloquium. He has written extensively on antitrust law matters for academic and trade journals and addressed competition issues for conferences in the U.S. and abroad. He also has served for many years as a trustee of Children's Home & Aid, a leading Illinois social service agency that has served children and families where the need is greatest for 135 years.

Honors & Distinctions

  • Named a leading antitrust lawyer in:

    Chambers USA — antitrust (2005-2017)

    Chambers Global — antitrust (2012-2016)

    The International Who's Who of Competition Lawyers and Economists (2006-2015)

    The Guide to the World's Leading Competition and Antitrust Lawyers (2006-2015)

    Legal 500 US (2013-2014)

    The Best Lawyers in America — antitrust (2006-2017)

    Illinois Super Lawyers — antitrust (2005-2017)

    Who's Who Legal: Life Sciences (2015-2017)
Michael Sennett Mike