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

Antitrust

Commodities

Data Privacy

Health Care

Securities

Professional Recommendations

“[Lowey Dannenberg] has considerable experience in litigating ‘some of the largest class actions throughout the country.’ . . . . The quality of their representation is also evidenced by the fact that Class Members, including sophisticated institutional investors, have not objected to the Settlement. The Court has no reason to doubt the quality of their representation.”

Hon. Gregory H. Woods, July 7, 2022 Fairness HearingTranscript, at p. 24 in In re JPMorgan Precious Metals Spoofing Litigation 18 Civ. 10356 (S.D.N.Y.)

“The court appreciates class counsel’s taking on these challenges and class counsel’s able navigation of these hard problems, in developing the case on behalf of the putative class, and in bringing contentious settlement negotiations to a successful outcome.

I might add too that the settlement was not only successful. Compared with many analogous cases, it was also prompt, a fact that brings obvious advantages to the class.”

Hon. Paul Engelmayer, May 31, 2022 Fairness Hearing Transcript, at p. 30 in In re JPMorgan Treasury Spoofing Litigation, 20 Civ. 3515 (S.D.N.Y.)

Recent Cases

Federated Investment Management Company, et al., v. Republic of Argentina

Antitrust

By Vincent Briganti

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 […]

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Juniper Networks

Notable

By Vincent Briganti

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 […]

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New York Stock Exchange/Archipelago

Notable

By Vincent Briganti

The Firm acted as Co-Lead Counsel for a class of seatholders seeking to enjoin the merger between the New York Stock Exchange and Archipelago Holdings, Inc. Lowey’s representation achieved revised […]

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News

Lowey Dannenberg has been Ranked on Chambers & Partners

Jun 4, 2026

Lowey Dannenberg, P.C. is thrilled to announce that we were recognized by Chambers & Partners as one of the top law firms in the Antitrust: Mainly Plaintiff New York Guide.  Additionally, Nicole Veno has been recognized by Chambers & Partners as an Associate...

Blog

The Importance of Portfolio Monitoring for Pension Trustees

Jun 17, 2025

Trustees’ Fiduciary Duties Relating to Securities Class Action Litigation As fiduciaries, trustees are held to a stringent legal standard of care in administering their Pension Plan. Central to their responsibilities is the duty of prudent administration, which requires careful consideration of...

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