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

New York Stock Exchange/Archipelago
Notable
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.

WorldCom
Notable
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.

Philip Services
Notable
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.
News
Lowey Dannenberg Appointed Co-Lead Counsel in Lumen Technologies, Inc. Stockholder Derivative Litigation
On April 21, 2025, Hon. Kayla D. McClusky, United States Magistrate Judge, appointed Lowey Dannenberg, P.C. as the Co-Lead counsel representing Plaintiffs and a proposed class in the consolidated action: In re Lumen Technologies, Inc. Stockholder Derivative…
Blog
Don’t Press Replay: Third Circuit Rules in Favor of User Privacy with Popa Decision
In August 2022, the Third Circuit handed down a decision addressing both exceptions to and the definition of “intercept” under the Pennsylvania Wiretapping and Electronic Surveillance Control Act (WESCA).[1] Popa v. Harriet Carter Gifts, Inc. , 45 F. 4th 687 (3d Cir. 2022), reh’g granted and…





