Thomas Giblin advises companies and individuals on a full range of civil and regulatory matters, including securities litigation, derivative litigation, and government investigations.

Mr. Giblin helps clients navigate the complex litigation and regulatory landscape that securities issuers, corporate directors and officers, auditors, and financial institutions face.

He regularly represents clients in a full spectrum of litigation and enforcement activity, including securities class actions, shareholder derivative litigation and investigations by the DOJ, SEC, CFTC, and others, including regulators outside of the US.

Mr. Giblin draws on a background in economics and a keen understanding of the underlying business needs of his clients. He frequently secures dismissal of securities litigation at the pleading stage and regularly resolves matters before they proceed to trial.

In addition to his commercial work, Mr. Giblin handles pro bono work. In one notable matter, he won a favorable verdict at trial for a small business owner accused of violating federal and state labor laws, and successfully argued for affirmance by the Second Circuit Court of Appeals.

During law school, he served on the editorial board of the Columbia Business Law Review. Mr. Giblin has clerked for the Honorable Gary L. Lancaster, Chief Judge of the United States District Court for the Western District of Pennsylvania, as well as the Honorable Thomas P. Agresti, Chief Judge of the United States Bankruptcy Court for the Western District of Pennsylvania.

Mr. Giblin’s representative matters include:

Securities Litigation

  • Ferrellgas Partners, L.P., in In re Ferrellgas Partners, L.P., Securities Litig., 2018 WL 2081859 (S.D.N.Y. 2018); obtained dismissal at the pleading stage
  • Endo International plc, in a variety of matters, including Friedman v. Endo Int’l plc, 2018 WL 446189 (S.D.N.Y. 2018); obtained dismissal at the pleading stage
  • Wayfair, Inc. in Dingee v. Wayfair Inc., 2016 WL 3017401 (S.D.N.Y. 2016); obtained dismissal at the pleading stage
  • Funko, Inc. in a variety of securities and derivative litigations
  • ABN AMRO Bank N.V. and its affiliates in connection with several Madoff-related clawback litigations
  • Deutsche Bank, in multiple civil litigations arising from the issuance and sale of mortgage-backed securities, including cases brought by investors and insurers

White Collar Investigations

  • An issuer who went public in a deSPAC transaction, in connection with an SEC investigation
  • Traders of financial instruments in connection with multi-jurisdictional regulatory and antitrust investigations including by the DOJ, SEC, CFTC, and several non-U.S. regulators related to financial commodities trading
  • A large national accounting firm in connection with investigations by the Securities and Exchange Commission and other federal agencies, as well as related civil litigation
  • A high-profile subject of an insider trading investigation conducted by the Department of Justice and Securities and Exchange Commission

Bar Qualification

  • New York
  • Pennsylvania


  • JD, Columbia University School of Law, 2009
    Kent Scholar
  • BS, Duke University, 2006
    magna cum laude