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

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 merger terms, providing the seatholders with more than $250 million in additional consideration.

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WorldCom

Notable

By Vincent Briganti

Lowey Dannenberg’s innovative strategy and aggressive prosecution produced an extraordinary recovery for the New York City Pension Funds in the In re WorldCom, Inc. Securities Litigation, substantially superior to that of any other WorldCom investor in either class or opt-out litigation.

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Philip Services

Notable

By Vincent Briganti

After seven years of hard-fought litigation in the District Court and the Second Circuit Court of Appeals, Lowey Dannenberg achieved a $79 million settlement on behalf of United States investors of Philip Services Corp., a bankrupt Canadian resource recovery company.

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News

Lowey Appointed Interim Co-lead Counsel in Containerboard Case

Oct 28, 2025

  Key Takeaways: Lowey was appointed Co-Lead Class Counsel in Artuso Pastry Foods Corp. v. Packaging Corporation of America, et al. 1:25-cv-08856 (N.D. Ill.). Plaintiffs allege that the Defendants, large packaging manufacturers, colluded to raise prices on…

Blog

DOJ Announces New Antitrust Whistleblower Rewards Program

Sep 10, 2025

On July 8, 2025, the U.S. Department of Justice Antitrust Division announced the creation of a new Whistleblower Rewards program. This program will allow the Antitrust Division to offer rewards to individuals who report antitrust crimes. Individuals may qualify for monetary rewards of up to 30% of…

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