Hausfeld welcomes leading antitrust and consumer protection litigator Daniel J. Walker as partner
WASHINGTON, D.C. [Tuesday, June 2, 2026] – Hausfeld is pleased to announce that Daniel J. Walker has joined the firm as a partner in its Washington, D.C. office. Dan is a leading antitrust and consumer protection litigator with experience at the Federal Trade Commission’s Health Care Division and in private practice. His arrival further strengthens Hausfeld’s nationally recognized plaintiff-side Antitrust and Competition practice in the United States.
Dan represents consumers, workers, and others in complex litigation against some of the largest companies in the world. Drawing on his experience in private practice and at the FTC’s Health Care Division, he has helped recover hundreds of millions of dollars on behalf of claimants in cases challenging harmful conduct across many sectors, including health care, pharmaceuticals, technology, and agriculture.
In his prior roles at a leading plaintiffs’ firm, Dan played key roles in major complex actions involving alleged price-fixing, monopolization, and other exclusionary conduct, including In re Broiler Chicken Grower Antitrust Litigation, In re Loestrin 24 Fe Antitrust Litigation, In re Titanium Dioxide Antitrust Litigation, and In re High Tech Employee Antitrust Litigation, among others. Dan also played a key role in significant pharmaceutical matters for the FTC, including Federal Trade Commission v. AbbVie Inc. and Federal Trade Commission v. Cephalon Inc., in which the FTC obtained $1.2 billion in monetary relief.
Regarding Dan’s arrival, Global Chair Brian A. Ratner said:
“Dan brings an exceptional combination of private and government enforcement experience, with a phenomenal track record of results for consumers and businesses. His joining adds important strength to our market-leading Antitrust and Competition practice and reflects Hausfeld’s continued investment in outstanding lawyers who are equipped to take on the most complex and high-impact competition litigation matters for plaintiffs.”
Dan added:
“Hausfeld has long been known for bringing ambitious, cutting-edge antitrust and consumer cases, and I’m honored to contribute my skills and experience to that work alongside such a talented team. I look forward to working with my new colleagues to build on the recoveries we’ve already achieved for consumers and other plaintiffs in markets where competition has been distorted.”
Press Contact
Lisa Sharrow, Director of Marketing & Business Development
Hausfeld LLP
+1 202 953‑8177
lsharrow@hausfeld.com
About Hausfeld
Hausfeld is a leading litigation law firm with offices in Boston, New York, Philadelphia, San Francisco, and Washington, D.C., as well as in the UK and continental Europe. In the last decade, Hausfeld has won landmark trials, negotiated complex settlements, and recovered billions of dollars for clients both in and out of court. Hausfeld lawyers consistently apply forward‑thinking ideas and creative solutions to the most vexing global legal challenges faced by clients. As a result, the firm’s litigators have developed numerous innovative legal theories that have expanded the quality and availability of legal recourse for claimants around the globe.
