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Gentlemen, you can't fight in here, this is the war room!

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Justice Brandeis

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A willingness to take risks and go against the grain.

Curriculum Vitae

SARAH LAFRENIERE is a Partner at Edelson PC and a member of the firm’s antitrust team.

Sarah specializes in prosecuting antitrust conspiracies, recovering damages for businesses who are victims of price-fixing cartels and other anticompetitive conduct.  She also advocates for small businesses adversely affected by anticompetitive unilateral conduct, where she helps companies challenge exclusionary tying arrangements, restrictive exclusive dealing contracts, and other exercises of monopoly power.

Before joining Edelson PC, Sarah served as a Partner at an international litigation firm, representing diverse clients including technology startups, non-profit organizations, investors, and consumers. Sarah clerked for Judge Victor J. Wolski at the United States Court for Federal Claims.

  • In re Multiplan, No. 24-md-6795 (N.D. Ill.) – Represents a proposed class of healthcare providers alleging price-fixing among major insurers and MultiPlan.
  • Community Care v. GoodRx, No. 24-cv-09490 (C.D. Cal.) – Represents proposed class of independent pharmacies alleging price-fixing among prominent PBMs and GoodRx.
  • Mass. Laborers’ Health & Welfare Fund v. Boehringer Ingelheim, No. 24-cv-10565 (D. Mass) – Represents proposed class of indirect purchasers alleging drug manufacturer Boehringer Ingelheim has unlawfully monopolized major inhaler markets via wrongful patent listings in FDA’s Orange Book.
  • AXG Roofing, LLC v. RB Global, Inc. et. Al. 1:2025-cv-03487 (N.D. Ill.) – Represents a proposed class of construction companies alleging price fixing of construction rental equipment.
  • PHHHOTO Inc. v. Meta Platforms, Inc. (F/K/A Facebook), 1:21-cv-06159 (E.D.N.Y.) – Sarah represented an upstart photo app alleging Facebook engaged in monopolistic conduct, and obtained a landmark Second Circuit decision on statutes of limitations.
  • In re Diisocyanates Antitrust Litigation, 2:18-mc-1001 (W.D. Pa.) – Sarah represented a class of manufacturers in claims against major industrial suppliers for conspiring to artificially inflate prices of the chemicals methylene diphenyl diisocyanate (MDI) and toluene diisocyanate (TDI).
  • In re Foreign Exchange Benchmark Rates Antitrust Litigation, 1:13-cv-7789 (S.D.N.Y.) – Sarah represented a class of investors in the foreign exchange market against international banks alleged of fixing the price of foreign exchange instruments.
  • 2301 M Cinema LLC d/b/a West End Cinema et al v. Silver Cinemas Acquisition Co. et al., 1:17-cv-01990 (D.D.C.) – Sarah represented art house cinemas in a successful settlement against a nationwide theater chain for monopolizing the market for specialty films.
  • Commonwealth of Virginia, ex. rel. Joshua Harman, v. Trinity Industries, Inc.,et al., CL13000698-00 (Va. Cir. Ct.) – Sarah represented a whistleblower who brought claims on behalf of the Commonwealth of Virginia alleging fraudulent sales of guardrail end terminals in violation of the Virginia Fraud Against Taxpayers Act.
  • VW “Clean Diesel” Litigation – Sarah represented European consumers seeking damages from Volkswagen AG in relation to that company’s massive “clean-diesel” fraud. Sarah had been at the forefront of litigation pursuant to 28 U.S.C. § 1782, obtaining evidence through U.S. discovery mechanisms European consumers to  use in their litigation abroad.
  • National Law Journal: Rising Star, Elite Trial Lawyers, 2022
  • Best Lawyers: One to Watch, Antitrust Law, Litigation – Antitrust, 2020–present
  • Super Lawyers: Rising Star, Washington DC, 2020–present 
  • Law 360: Rising Star, Competition Law, 2019
  • American Antitrust Institute: Outstanding Antitrust Litigation Achievement by a Young Lawyer, 2018 
  • Recipient of the Mussey Prize for the Highest Scholastic Average in the Final Year of Study by the American University Washington College of Law
  • “Under the Umbrella: Antitrust Damages,” ABA Antitrust Spring Meeting, March 2023
  • “Current Developments in Class Actions,” The Knowledge Group, May 2023
  • “Ephemeral Messaging: Addressing eDiscovery Risks in Civil Litigation,” Innovative Driven, May 2022
  • “JeopTARdy!,” ABA National Institute on Class Actions, April 2022
  • “Anatomy of an Antitrust Case: Class Certification,” ABA Section of Antitrust Law, Civil Practice and Procedure Committee, May 2022
  • “Discovery Nuts and Bolts Series,” ABA Section of Antitrust Law, Civil Practice and Procedure Committee, June 2021
  • “Private Antitrust Enforcement/Damages Claims Globally,” June 2020
  • “The State of Leniency,” GCR Live 4th Annual Cartel Conference, March 2019
  • “Seventh Circuit Reminds Practitioners, Article III Standing and Antitrust Standing are Distinct,” Lexology, May 20, 2022
  • “Personal Jurisdiction in Federal Class Actions: Three New Rulings but Little Clarity,” Lexology, May 20, 2020
  • “What the Canadian Air Cargo Decision May Mean for Possible U.S. Claimants,” Lexology, Mar. 5, 2019
  • “Inconsistent Case Law on 28 U.S.C. § 1782 Continues to Confuse Litigants and District Courts,” Lexology, Nov. 28, 2018
  • “The Volkswagen Scandal: Catalyst For Class Action Change?,” Law360, Feb. 27, 2018
  • “Two Years After Campbell-Ewald, Defendants Face Uphill Battle “Picking Off” Named Plaintiffs,” Lexology, Feb. 21, 2018
  • “Product hopping by a pharmaceutical company “likely” violated the antitrust laws,” Lexology, Oct. 13, 2015
  • Washington
  • New York
  • District of Columbia
  • Southern and Eastern Districts of New York, Second Circuit
  • Eastern District of Michigan