• 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.
    • 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.
    • Representing a generic pharmaceutical company in defense of an claims brought on behalf of direct purchasers challenging an alleged “reverse payment” patent litigation settlement.
    • Representing a generic pharmaceutical company in defense of alleged horizontal conspiracy claims arising out of resolution of patent infringement litigations.
    • Representing a brand pharmaceutical company in its defense of putative class actions filed by direct and indirect purchasers based on an alleged “reverse payment” patent litigation settlement. 
    • Representing a brand pharmaceutical company in action brought by Federal Trade Commission challenging a patent licensing agreement.
    • 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.
    • 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.
    • Represented a national pharmaceutical company in defense of claims based on its product marketing. Secured dismissal with prejudice of all antitrust claims.
    • Defended a leading vision benefits provider in an antitrust class action accusing it of depressing reimbursements to eye care providers. The claims were dismissed following filing of a motion to dismiss and motion to compel arbitration.
    • 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.
    • Represented a health insurance company in civil RICO, fraud, and civil conspiracy litigation.
    • Represented a large chemical company in temporary restraining order and preliminary injunction proceedings related to trade secret theft and executive non-compete provisions.  Secured temporary restraining order followed by favorable settlement.
    • Represented a leading milk processor in defense of antitrust claims brought by retail plaintiffs following denial of class certification. The case settled favorably on the eve of trial.
    • 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