Kellie Lerner focuses her practice on representing businesses and governmental entities in complex antitrust actions. Ms. Lerner has litigated a wide variety of antitrust claims, including price-fixing, unlawful boycotting, monopolization and monopoly leveraging cases.

Ms. Lerner served as a member of the trial team in In re Abbott Laboratories Norvir Antitrust Litigation, in which she represented consumers and Third Party Payors in a lawsuit against Abbott Laboratories for quadrupling the price of Norvir, a life-saving HIV medication. The case settled on the virtual eve of trial for $10 million.

Ms Lerner is currently litigating In re Photochromic Lens Antitrust Litigation, In re Polyurethane Foam Antitrust Litigation, In re NCAA Student Athlete Name & Likeness Licensing Litigation and In re Municipal Derivatives Antitrust Litigation. She is also very active in investigating and initiating antitrust class actions.

Ms. Lerner is a frequent speaker and writer on emerging antitrust issues affecting businesses. Her publications include: "Class Actions: Practical Considerations of Motions to Deny Certification," New York Law Journal, August 15, 2011 (co-author), "NFL: Single Entity or Sherman Act Violator?," New York Law Journal, March 8, 2010 (co-author), "American Needle v. NFL: The Supreme Court Tackles Whether Pro Football Should Be Exempt From Antitrust Laws," Andrews Litigation Reporter, December 2009 (author), and "Trinko and Beyond," NYLitigator, Winter 2007 (co-author).

In March 2011, Ms. Lerner was named to Law360's "Rising Star" list of five competition lawyers under 40 to watch. She is a member of the New York State Bar Association, Commercial & Federal Litigation Section – Antitrust Committee, the Women in Antitrust Committee, the American Bar Association Civil Redress Task Force, and the National Association of Women Lawyers.