Daniel Walker

Practice Areas

Dan Walker is a Shareholder of the Firm, which he rejoined in July 2017 after serving three years in the Health Care Division at the Federal Trade Commission.

Mr. Walker investigates and litigates complex cases on behalf of consumers and workers against some of the largest and most powerful companies in the world. Mr. Walker has helped recover hundreds of millions of dollars on behalf of plaintiffs, including in In re: Broiler Chicken Grower Antitrust Litig., 6:20-md-02977 (E.D. Okla.) (settlements, pending final approval, totaling $169 million on behalf of a class of chicken farmers), In re Loestrin 24 Fe Antitrust Litigation (settlements totaling $120 million for purchasers of hormonal birth control pills), In re Titanium Dioxide Antitrust Litigation (settlements totaling $163.5 million for purchasers of titanium dioxide), In re High Tech Employee Antitrust Litigation (settlements totaling $435 million for workers in the high tech industry), and Adriana Castro, M.D., P.A., et al. v. Sanofi Pasteur Inc. ($61.5 million settlement on behalf of pediatricians who purchased meningococcal vaccine). Mr. Walker was also a member of the trial team that successfully represented the Washington Mutual stockholders in a landmark bankruptcy court trial seeking to recover for losses sustained in the company’s sudden bankruptcy.

Mr. Walker’s current cases include, among others:

In re: Geisinger Health and Evangelical Community Hospital Healthcare Workers Antitrust Litig., 4:20-cv-00196 (M.D. Pa.) (representing a class of healthcare workers alleging an illegal agreement between two hospitals not to recruit each other’s workers)

Team Schierl Companies, et al. v. Aspirus, Inc., et al., No. 22-cv-580 (W.D. Wis.) (representing a class of direct purchasers of health care services alleging monopolization and price fixing)

Uriel Pharm. Health & Welfare Plan v. Advocate Aurora Health, Inc., No. 2:22-cv-610 (E.D. Wis.) (representing a class of direct purchasers of health care services alleging monopolization)

Estuary Transit District, et al. v. Hartford Healthcare Corp., et al., No. 3:24-cv-01051 (D. Conn.) (representing a class of direct purchasers of health care services alleging monopolization and price fixing)

Henry, et al. v. Brown University, et al., No. 1:22-cv-00125 (N.D. Ill.) (representing a class of current and former students of elite universities alleging the universities conspired to reduce financial aid awards, with $284 million in settlements with 10 of 17 defendants)

City of Brevard, North Carolina v. HCA Healthcare, Inc., et al., No. 1:22-cv-114 (W.D.N.C.) (representing a class of direct purchasers of health care services alleging monopolization)

Mayor and City Council of Baltimore v. Merck Corp., No. 23-cv-828 (E.D. Pa.) (representing a class of third-party payors alleging anticompetitive conduct by vaccine manufacturer)

In re: RealPage, Inc., Rental Software Antitrust Litig. (No. II), No. 3:23-md-3071 (M.D. Tenn.) (appointed as member of plaintiffs’ steering committee representing a class of renters suing over price fixing)

In re: Multiplan Health Insurance Provider Litig., No. 1:24-cv-06795 (N.D. Ill.) (representing a class of health care providers suing over price fixing)

While at the Federal Trade Commission, Mr. Walker investigated and litigated antitrust matters in the healthcare industry. In addition to leading various nonpublic investigations in the pharmaceutical and health information technology sectors, Mr. Walker litigated Federal Trade Commission v. AbbVie Inc., et al., a case alleging that a brand pharmaceutical manufacturer engaged in sham patent litigation to delay generic competition, and Federal Trade Commission v. Cephalon Inc., a “pay-for-delay” lawsuit over a brand pharmaceutical manufacturer’s payment to four generic competitors in return for the generics’ agreement to delay entry into the market. The Cephalon case settled shortly before trial for $1.2 billion—the largest equitable monetary relief ever secured by the Federal Trade Commission—as well as significant injunctive relief.

In addition, Mr. Walker speaks frequently on antitrust issues involving workers, health care, and intellectual property.

Mr. Walker is a magna cum laude graduate of Amherst College and Cornell University Law School. Before entering private practice, Mr. Walker clerked for the Honorable Richard C. Wesley of the United States Court of Appeals for the Second Circuit.