Caitlin Coslett

Practice Areas

Caitlin G. Coslett is a Shareholder and Co-Chair of the Firm’s Antitrust Department. She also serves on the Firm’s Diversity, Equity, and Inclusion Task Force and as the Work Assignment Coordinator. Ms. Coslett concentrates her practice on complex litigation, including antitrust and mass tort litigation.

Ms. Coslett represents classes of direct purchasers of pharmaceutical drugs who allege that drug manufacturers have violated federal antitrust law by wrongfully keeping less-expensive generic drugs off the market and/or by wrongfully impeding generic competition. Her work on generic suppression cases has contributed to significant settlements totaling hundreds of millions of dollars, including in the cases of In re Solodyn (Minocycline Hydrochloride) Antitrust Litigation (for which Ms. Coslett served as Co-Lead Counsel), In re Lidoderm Antitrust Litigation, and In re Skelaxin (Metaxalone) Antitrust Litigation. Ms. Coslett is currently litigating several similar antitrust pharmaceutical cases, such as In re Effexor XR Antitrust Litigation, In re Bystolic Antitrust Litigation, In re Intuniv Antitrust Litigation, In re Lamictal Antitrust Litigation, In re Novartis and Par Antitrust Litigation, In re Opana ER Antitrust Litigation, and In re Suboxone (Buprenorphine Hydrochloride and Naloxone) Antitrust Litigation. She was honored for “Outstanding Antitrust Litigation Achievement by a Young Lawyer” for her work in In re Lidoderm Antitrust Litigation.

Ms. Coslett’s experience litigating antitrust class actions also includes In re CRT Antitrust Litigation, In re Domestic Drywall Antitrust Litigation, In re Payment Card Interchange Fee and Merchant Discount Antitrust Litigation, In re Steel Antitrust Litigation, and In re Urethane [Polyether Polyols] Antitrust Litigation.

Ms. Coslett also played a significant role in the post-trial litigation in Cook v. Rockwell International Corporation, a mass tort class action brought on behalf of thousands of property owners near the Rocky Flats nuclear plant in Colorado. The case settled for $375 million following a successful appeal to the Tenth Circuit and, in ruling for the plaintiffs on appeal, then-Judge Neil Gorsuch (who is now a Supreme Court Justice) praised Class Counsel’s successful “judicial jiu-jitsu” in litigating the case through the second appeal.

Ms. Coslett was named a “Next Generation Lawyer” by The Legal 500 United States 2019 in the Civil Litigation/Class Actions: Plaintiff category and was selected as a Rising Star by Super Lawyers every year from 2014 – 2021. She has served as pro bono counsel for clients referred by the AIDS Law Project of Pennsylvania and Philly VIP and is a member of the National LGBT Bar Association.

A Philadelphia native, Ms. Coslett graduated magna cum laude from Haverford College with a B.S. in mathematics and economics and graduated cum laude from New York University School of Law. At NYU Law, Ms. Coslett was a Lederman/Milbank Fellow in Law and Economics and an articles selection editor for the NYU Review of Law and Social Change. Prior to law school, she was an economics research assistant at the Federal Reserve Board in Washington, D.C. Ms. Coslett was formerly one of the top 75 rated female chess players in the U.S.