Bar Admissions
1995, Minnesota
William Mitchell College of Law, 1995
Court Admissions
Minnesota U.S. District Court, District of Minnesota U.S. Court of Appeals, Seventh Circuit U.S. Court of Appeals, Eighth Circuit


Heidi Silton is a seasoned litigator with more than 25 years of experience representing clients in high stakes complex civil litigation.  Throughout her career, Heidi has successfully represented clients in antitrust actions, earning her a reputation as a skilled and aggressive advocate for her clients’ interests.  She is known and respected by courts nationwide and counsel across the country on both the plaintiff and defense side. Throughout her career, Heidi has worked with many types of clients, and in varying market segments. She is passionate about protecting clients’ economic freedom and opportunity by promoting free and fair competition in the marketplace and is dedicated to antitrust enforcement.

Heidi’s approach to litigation is rooted in thorough preparation, creative problem-solving, and a fierce commitment to achieving the best possible outcome for her clients. Heidi is equally comfortable in the courtroom as in negotiations.   She is known for her ability to harness large amounts of evidence into a compelling narrative for courts or juries, her ability to think on her feet, her attention to detail while balancing many balls in the air, and her never-ending ability to problem solve.

In addition to investigating and litigating national and international antitrust cases, Heidi is active in antitrust discussion and policy nationwide, and is committed to staying up-to-date on the latest legal developments and trends. She is the immediate past President of The Committee to Support the Antitrust Laws (COSAL), an Advisory Board member of the American Antitrust Institute (AAI), and the current chair of AAI’s Private Enforcement Awards Committee. Heidi is also a past chair and emeritus of the Minnesota State Bar Association Antitrust Law Section.

Within her firm, Heidi has led the Hiring Committee, the Summer Associate Program, and the Business Development Committee, and is currently most active in the firm’s Diversity and Inclusion Committee.  Heidi is admitted into courts across the country, as well as being licensed to practice in the State and U. S. District Court of Minnesota, and the Seventh Circuit and Eighth Circuits of the U.S. Court of Appeals.

Heidi is committed to community involvement, especially around mentoring and DEI issues, and believes in giving back to the community in meaningful ways. Heidi serves on the boards of Arete Academy and of Reader/Writer, where she is also a writing coach for 8th graders. Heidi has also co-chaired galas to support the Sanneh Foundation, the American Diabetes Association, and Second Harvest.

In her free time, Heidi enjoys traveling, hiking, and exploring art, as well as spending time with family.

Representative Cases

  • Wood Mountain Fish LLC, et al., v. Mowi ASA, f/k/a Marine Harvest ASA, et al. (S.D. Fla.), No. 19-022128-CIV – Court-appointed interim Co-Lead Class Counsel for the Salmon Indirect Purchaser Class
  • In re Generic Pharmaceuticals Pricing Antitrust Litig., No. 2:16-md-02724-CMR (E.D. Pa) – Member of End-Payer Plaintiffs Steering Committee
  • Staley, et al., v. Gilead Sciences, Inc. et al, No.: 3:19-cv-02573(N.D. Cal.) – Member of Interim Executive Committee for End-Payor Class Plaintiffs
  • In re Packaged Seafood Products Antitrust Litig., 15-MD-2670, (S.D. Cal.)  – Indirect Purchaser Plaintiffs’ Steering Committee
  • Zuccolotto v. Datacomp Appraisal Systems, Inc. et al., No.: 1:23-cv-14797 (N.D. IL)
  • Morgan v. EssilorLuxottica S.A. et al.,: 0:23-cv-03065 (D. Minn)
  • Township of Howell, Monmouth County, New Jersey v. Axon Enterprise, Inc. et al.,: 3:23-cv-07182 (D. NJ)
  • Hutley v. Harley-Davidson Motor Company Group, LLC,: 1:23-cv-00181 (E.D. WI)
  • In re Google Digital Advertising Antitrust Litig., No. 1:21-md-03010 (S.D.N.Y.)
  • In re Google Play Consumer Antitrust Litig., 5:20-cv-05761 (N.D. Cal.)
  • In re Seroquel XR (Extended Release Quetiapine Fumarate) Antitrust Litig., Nos. 20-cv1076 and 20-cv-01090 (D. Del.)
  • In Re: Dealer Management Systems Antitrust Litigation,: 1:18-cv-00864 (N.D. IL)



  • “Working with Experts; class certification trends, strategies and pitfalls related to different classes” at the COSAL Diversity, Equity, and Inclusion Summit (October 20, 2022)
  • Panelists on the Diversity and Class Certification Panel at the American Antitrust Institute’s 15th Annual Private Antitrust Enforcement Conference (November 10, 2021)
  • Guest participant on the AAI podcast Antitrust and Diversity in the Plaintiffs’ Bar: A Conversation With Two Leading Private Enforcers to discuss insights and key aspects of the importance and role of women and diverse attorneys in antitrust, and in the plaintiff’s bar (November 3, 2020)
  • “Hot Topics in Obtaining Discovery in Foreign Countries” at the University of Minnesota Law School as part of an Electronic Discovery Seminar (March 4, 2014)
  • “Generational Issues in the Law” at the University of Minnesota Law School as part of the MSBA and Women in the Legal Profession seminar series (April 4, 2013)
  • “Hot Topics in Antitrust Law” at a Minnesota Women Lawyers CLE (January 18, 2012)
  • “Hypotheticals for Practical Application” at the MSBA CLE on Antitrust Law Issues in Intellectual Property Litigation and Licensing (May 25, 2011)

Professional Recognition

  • Named a 2023 Lawyer of Distinction
  • The National Trial Lawyers – Top 100 in the Civil Plaintiff Practice Area
  • Recognized by Women We Admire as one of the Top 50 Women Leaders of Minnesota for 2022. Read more: https://thewomenweadmire.com/2022/06/27/the-top-50-women-leaders-of-minnesota-for-2022/
  • Presented with 2021 COSAL President’s Award, read more here: https://www.cosal.org/antitrust-laws-blog/heidi-silton-presented-with-2021-cosal-presidents-award
  • Named a Top 50 Lawyer in America – Antitrust – Minnesota
  • Named a Minnesota Super Lawyer® from 2003-2022.
  • Named one of Minnesota’s Top 50 Women Super Lawyers® in 2012, 2015-2019, and a Top 100 Minnesota Women Super Lawyer® for 2007-2009.
  • Named a Top 100 Minnesota Super Lawyer® in 2017.
  • Named one of the Minneapolis/St. Paul Business Journal’s “40 Under 40” in 2005.
  • Past President of the Committee to Support the Antitrust Laws (COSAL)
  • Co-Vice Chair of the American Bar Association Membership
  • Advisory Member of the American Bar Association Global Private Litigation Committee, Antitrust Section
  • Member of the Twin Cities Diversity In Practice (TCDIP) Engagement & Innovation Committee
  • Chair of the American Antitrust Institute (AAI) Antitrust Enforcement Awards Judging Committee
  • Advisory Board Member of the American Antitrust Institute (AAI)

Heidi M. Silton

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