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
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Recent Cases

Roche v. Aetna, Inc.
Healthcare, Notable
Lowey Dannenberg is defending Aetna in a class action related to state anti-subrogation laws. Minerley v. Aetna Inc., et al., 13-cv-1337 (D.N.J.). Lowey Dannenberg has defended and won dismissal of […]

Federated Investment Management Company, et al., v. Republic of Argentina
Antitrust
Lowey obtained emergency injunctive relief on behalf of Federated Investors, one of the largest investment firms in the country with over $363 billion in assets under management, preventing the Government […]

Juniper Networks
Notable
Lowey Dannenberg served as lead counsel, representing the New York City Pension Funds and related class members, alleging that Juniper Networks, Inc. fraudulently concealed the backdating of millions of stock […]
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...





