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Joseph R. Seidman, Jr.

Joseph R. Seidman, Jr. received his bachelor’s degree in 1994 from Queens College of the City University of New York and received his J.D. in 1997 from St. John’s University School of Law.

Mr. Seidman is a member of the Firm’s Portfolio Monitoring and Case Evaluation team, where he investigates new matters involving potential violations of the federal securities laws and state laws, works extensively with individual and institutional clients, and handles all aspects of lead plaintiff proceedings pursuant to the Private Securities Litigation Reform Act.

Mr. Seidman has worked on numerous securities fraud cases from inception through settlement, including:  In re Beazer Homes U.S.A., Inc. Securities Litigation, No. 07-CV-725-CC (N.D. Ga.) ($30.5 million recovery); In re Taser International Securities Litigation, No. C05-0115 (D. Ariz.) ($20 million recovery); In re Willbros Group, Inc. Securities Litigation, No. 06-CV-1778 (S.D. Tex.) ($10.5 million recovery); In re KIT digital, Inc. Securities Litigation, No. 12-CV-4199 (S.D.N.Y.) ($6,001,999 recovery); City of Austin Police & Retirement Fund v. Kinross Gold Corp., No. 12-CV-1203 (S.D.N.Y.) ($33 million recovery); In re Tower Group International, Ltd. Securities Litigation, 13-CV-5852 (S.D.N.Y.) (partial settlement of $20.5 million); In re Biolase, Inc. Securities Litigation, No. 13-1300-JLS (FFMx) (C.D. Cal.) ($1.75 million recovery); and Peters v. JinkoSolar Holding Ltd., 11-CV-7133 (S.D.N.Y.).

Mr. Seidman was part of the team that successfully litigated an appeal before the Second Circuit Court of Appeals, which reversed a dismissal of the JinkoSolar case and affirmed the materiality standard for securities actions.  Mr. Seidman also worked on In re Tremont Securities Law, State Law and Insurance Litigation, which settled for over $100 million.

Mr. Seidman also worked on In re Freeport-McMoRan Copper & Gold, Inc. Derivative Litigation, C.A. No. 8110-VCN (Del. Ch.), a $153.5 million recovery that represented the second largest derivative settlement in Delaware and on the antitrust case, In re Air Cargo Shipping Services Antitrust Litigation, MDL No. 1775 (D.D.C.).

Currently, Mr. Seidman represents the Oklahoma Firefighters Pension and Retirement System in Avila v. LifeLock Inc., 15-cv-01398-SRB (D. Arizona), a securities fraud action alleging that executives made material misrepresentations to investors concerning LifeLock’s identity protection business and the status of a Federal Trade Commission investigation.

Mr. Seidman is admitted to the Bar of the State of New York.  He is also admitted to practice before the United States Court of Appeals for the Sixth Circuit, and the United States District Courts for the Southern and Eastern Districts of New York.

Practice Areas

  • Securities Litigation
  • Shareholder Rights Litigation
  • Antitrust Litigation
  • Complex and Class Action Litigation


  • J.D., St. John's University School of Law, 1997
  • B.S., Queens College of the City University of New York, 1994


  • New York
  • U.S. Courts of Appeals
    • Sixth Circuit
  • U.S. District Courts
    • Southern District of New York
    • Eastern District of New York