Michelle A. Mantine

she/her/hers

Partner

Pittsburgh

Antitrust strategist trusted by global businesses to navigate complex deals, investigations, and high-stakes litigation

"Michelle is extremely knowledgeable, approachable and practical."

Chambers USA, Antitrust client

"Michelle Mantine is a versatile antitrust lawyer, equally skilled in handling challenging litigation and advising on pre- and post-merger issues."

Legal 500 USA, Antitrust: Civil litigation/class actions: defense

Michelle likes to win, and clients appreciate the experience, judgment, and mindset she brings to every engagement. Known for her hands-on, commercial approach, she works closely with clients to develop strategies that move matters forward efficiently and decisively.

As the leader of Reed Smith’s global Antitrust & Competition team, Michelle provides clear, coordinated guidance across litigation, transactions, investigations, and compliance in the United States and internationally.

Experience

Representative matters

Represented Imker Capital Partners portfolio company, Euramax for Mobility, in its joint venture with Lippert Components Manufacturing, Inc.
Successful resolution of an Antitrust Division of the Department of Justice (DOJ) wage fixing investigation resulting in no action against our home health care company client and closure of the investigation in less than one year
Obtained dismissal (without prejudice) of leading drug wholesale company in multi-district antitrust class action litigation (In re Generic Pharmaceuticals Pricing Antitrust Litigation, MDL No. 2724, Reliable Pharmacy, 19-cv-6044, Doc. No. 155).

Recognitions

  • Ranked in Chambers USA for Pennsylvania Antitrust, 2023-2025
  • 2024 Mentor & Mentee Collaboration Winner, Women, Influence and Power in Law Awards 2024, Corporate Counsel
  • 2023 Best Law Firm Mentor, Pennsylvania Legal Awards 2023, The Legal Intelligencer

Credentials

Education

  • Duquesne University School of Law, 2006, J.D., cum laude, Comment Editor, Duquesne Law Review; Katie Elisabeth Westbrook Award for Excellence (2006); Order of the Barristers (2006); ATLA Regional Trial Competition Champions (2006); Buffalo/Niagara Trial Competition Finalist & Best Advocate Award (2005); National Trial Competition Regional Finalist (2005); Carol Los Mansmann First Year Appellate Moot Court Competition Finalist (2004)
  • Washington & Jefferson College, 2003, B.A., Economics, Political Science and Spanish, summa cum laude, Phi Beta Kappa; recipient of the Benjamin Franklin Book Prize in Economics, the Howard Goldfarb Prize in Political Science, and the J. Adolph Schmitz Prize in Languages

Professional admissions & qualifications

  • Pennsylvania

Court admissions

  • State Supreme Court - Pennsylvania
  • Supreme Court of Appeals - West Virginia
  • U.S. District Court - Western District of Pennsylvania
  • U.S. District Court - Southern District of West Virginia
  • U.S. District Court - Northern District of West Virginia
  • U.S. District Court - Central District of Illinois
  • U.S. Court of Appeals - Ninth Circuit
  • Supreme Court

Professional affiliations

  • American Bar Association – Antitrust Section
  • Journal of Federal Agency Action – Board of Editors
  • Washington & Jefferson College – Pre-Law Alumni Advisory Board (2011-present)
  • Duquesne University Kline School of Law – Past Board Member; General member (2006-Present)

Clerkships

  • U.S. District Court - Western District of Pennsylvania, Chief Judge Gary L. Lancaster (deceased)

News

Blogs

Events

Civic and Charitable Affiliations

  • March of Dimes Western PA Market Board of Directors (2023-Present)
  • Vice-Chair of 2021 Pittsburgh Signature Chefs Auction Event for March of Dimes
  • Pittsburgh YWCA – Board Member (2015-2021); Secretary (2017) Executive Committee Member (2017–2021) and Chair of Development Committee (2017-2019)

Interests

Michelle lives with her husband, Brian, and their three children Madeline, Henry, and Olivia in Sewickley, Pennsylvania. As a former marathoner, competitive figure skater, and certified yoga and spinning instructor, Michelle is passionate about exercise and its associated benefits on one’s physical, mental, and emotional well-being.