• United States v. Google Inc. Representing Microsoft as a third-party in the Department of Justice’s antitrust action against Google.
    • In re Opana ER Antitrust Litigation. Representing a brand pharmaceutical company in its defense of class actions based on an alleged “reverse payment” patent litigation settlement. Secured complete defense verdict after four-week trial in federal court in Chicago.
    • GEHA v. Actelion Pharmaceuticals. Representing Janssen Pharmaceuticals and subsidiaries in defense monopolization claims.
    • Mish International Monetary v. Vega Capital London. Representing 12 individual commodities futures traders against putative class claims under the Sherman Antitrust Act and the Commodities Exchange Act based on trading of West Texas Intermediate Crude Oil futures contracts.
    • In re Generic Pharmaceutical Pricing Antitrust Litigation. Defending a generic pharmaceutical company in multi-district litigation, brought by private plaintiffs and state attorneys generals, involving an alleged price fixing and supply reduction conspiracy.
    • In re Caustic Soda Antitrust Litigation. Defending a large chemical manufacturer in class action cases brought by direct and indirect purchasers claiming it participated in a price-fixing and supply reduction conspiracy in the caustic soda market.
    • FTC v. Endo Pharmaceuticals. Representing a brand pharmaceutical company in novel action brought by Federal Trade Commission challenging a patent licensing agreement. Secured dismissal of all claims with prejudice; matter is currently on appeal.
    • FTC v. Meta. Representing technology company as a non-party in the Federal Trade Commission’s antitrust action against Meta.
    • In re Amitiza Antitrust Litigation. Represented a generic pharmaceutical company in defense of claims brought on behalf of direct purchasers challenging an alleged “reverse payment” patent litigation settlement.
    • In re Colcrys Antitrust Litigation. Representing a generic pharmaceutical company in defense of alleged horizontal conspiracy claims arising out of resolution of patent infringement litigations.
    • In re Processed Eggs Antitrust Litigation. Served as trial counsel for a defendant national egg producer in a six-week federal antitrust jury trial in which plaintiffs alleged a supply reduction and price fixing conspiracy. Secured complete defense verdict.
    • In re Urethanes Antitrust Litigation. Represented an international chemical manufacturer in a four-week antitrust trial on price fixing claims brought by opt-out plaintiffs. The case settled favorably prior to verdict.
    • In re Southeast Milk Antitrust Litigation. Represented a national milk processor trial counsel against claims of price-fixing by a large supermarket chain and a convenience store owner, resulting in a favorable settlement.
    • IMN v. Fresenius (S.D. Ind.). Represented a leading dialysis services provider against claims of monopolization, attempted monopolization, and various state law contract and tort claims based on allegedly exclusionary conduct in the dialysis market. Secured dismissal of all antitrust claims.
    • Genus Life Sciences v. Lannett (N.D. Cal.). Represented a national pharmaceutical company in defense of antitrust and false advertising claims based on its product marketing. Secured dismissal with prejudice of all antitrust claims.
    • Highmark Inc. v. U.S. Health Group. Represented a health insurance company as plaintiff in civil RICO, fraud, and civil conspiracy litigation.
    • In 2021, Ms. Chapman was recognized as a “Future Leader – Competition” by Who’s Who Legal.
    • In 2021, Ms. Chapman was recognized in Best Lawyers as being among the “Ones To Watch” for Antitrust Law in Pennsylvania. This recognition is given to attorneys who are early on in their careers for outstanding professional excellence based off of peer review.
    • In 2019, Ms. Chapman was named among Pennsylvania’s “Lawyers on the Fast Track” in The Legal Intelligencer’s 2019 Professional Excellence Awards.
    • Litigators of the Week - (June 20, 2018)
    • Cartel Regulation 2022, U.S. Chapter - (December 16, 2021)
    • Cartel Regulation 2020, U.S. Chapter - (February 14, 2020)
    • The US District Court for the Eastern District of Pennsylvania Finds That a Company was not Part of a Conspiracy to Manipulate the Supply of Eggs and Raise Prices - (September 01, 2018)
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    • Coffee Break Compliance Broadcast Series | Episode Twelve: Managing Antitrust Risks in an Inflationary Environment - (October 25, 2021)
    • Front of the Class: Cutting-Edge Strategies for Defeating Class Certification- Dechert LLP and Lexology, Webinar (November 17, 2020) 
    • The Current Antitrust Spotlight on Agriculture: What You Need to Know- American Agricultural Law Association, Webinar (August 6, 2020) 
    • 2019 Annual Antitrust Spring Seminar- Dechert LLP, Philadelphia, PA (March 26, 2019)
    • Young Lawyer Representative, ABA Section of Antitrust Law’s Advertising Disputes and Litigation Committee (2018-2019)
    • Member, Board of Directors, Pennsylvania Court Appointed Special Advocates (2018-2021)
    • Investigative Team Member, Philadelphia Bar Association’s Commission on Judicial Selection (2019-present)
    • United States District Court for the Eastern District of Pennsylvania, Honorable Mary A. McLaughlin