More than 50 years of landmark results
Since 1967, Lowey Dannenberg has represented investors and major corporations in complex litigation, recovering billions of dollars on their behalf.Solutions for Complex Cases
Professional Recommendations
Recent Cases

Shelled Eggs
Antitrust, Commodities
On June 8, Lowey Dannenberg Chairman Vincent Briganti was appointed as Co-Lead Counsel for the Direct Purchaser Plaintiffs in In Re: Shell Eggs Antitrust Litigation, No. 3:26-md-03175-JDP (W.D. Wisc.) Plaintiffs […]

Amitza
Healthcare
Lowey Dannenberg, on behalf of named plaintiff Premera Blue Cross, is leading a class on behalf of Third-Party Payers of Amitiza (Lubiprostone) against Takeda Pharmaceutical Company Ltd. and related entities. […]

Amgen
Health Care, Healthcare
On September 30, 2025, the U.S. District Court for the Eastern District of Virginia largely denied Amgen’s motion to dismiss in CareFirst of Maryland Inc. et al. v. Amgen Inc. […]
News
Lowey Dannenberg and Co-Counsel File Class Action on Behalf of End-Payors for Immunosuppressive Drug Stelara (Ustekinumab)
On December 7, 2023, Lowey Dannenberg, P.C. and its co-counsel, representing named Plaintiff CareFirst BlueCross BlueShield,filed suit against Stelara manufacturer Johnson & Johnson (“J&J”) in the U.S. District Court for the Eastern District of Virginia. The…
Blog
Meta’s Ambitious VR Acquisitions Attract Antitrust Probe
At the company’s annual Connect conference in October 2021, Mark Zuckerberg announced that Facebook was renamed “Meta,” as a better embodiment of the company’s future focus on metaverse. At the core of this ambitious plan to build a virtual universe is Meta’s VR business. Since its rebranding, the...





