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Margaret E. Mazzeo

Partner

D  484.654.2883
F  610.667.7056

Margaret E. Mazzeo, a Partner of the Firm, concentrates her practice in the area of securities fraud litigation. Since joining the firm, Maggie has represented shareholders in numerous securities fraud class actions and direct actions, through all aspects of pre-trial proceedings, including complaint drafting, litigating motions to dismiss and motions for summary judgment, conducting document, deposition, and expert discovery, and appeals. Most recently, Maggie was part of the team that secured a $239 million recovery in In re Celgene Securities Litigation (D.N.J.), a seven-year-long fraud case involving allegations that drugmaker Celgene fraudulently concealed problems with two of its drugs. Maggie was also a member of the trial team that won a jury verdict in favor of investors in In re Longtop Financial Technologies Ltd. Securities Litigation, (S.D.N.Y.). In addition, Maggie served as counsel in a direct action on behalf of several prominent mutual funds in In re Petrobras Securities Litigation (S.D.N.Y.), a fraud case against Brazil’s state-run oil company, Petrobras, involving a decade-long bid-rigging scheme, the largest corruption scandal in Brazil’s history. These claims were successfully resolved as part of a $353 million reported settlement. Currently, Maggie serves as counsel in pending securities class actions involving Apple, Coinbase Global, FMC Corporation, and ICON plc, among others.

In addition to litigating securities class actions, Maggie also represented a class of internet advertisers in Cabrera v. Google (N.D. Cal.), a twelve-year-long consumer fraud case involving an overcharging scheme directed at users of Google’s online advertising platform. This case settled just weeks before trial for $100 million.

Practice Areas

Education

  • Franklin & Marshall College
    B.A. 2007, magna cum laude
  • Temple University Beasley School of Law
    J.D. 2011, cum laude

Admissions

  • Pennsylvania
  • New Jersey
  • USDC, District of New Jersey
  • USDC, Eastern District of Pennsylvania
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