• University of Pennsylvania Law School (J.D., 2005), summa cum laude; Research Editor, University of Pennsylvania Law Review
  • Princeton University (A.B., 2002), cum laude

bar admissions

  • Florida
  • New Jersey
  • Pennsylvania
  • District of Columbia

court admissions

  • U.S. Court of Appeals, Third Circuit
  • U.S. Court of Appeals, Eleventh Circuit
  • U.S. District Court, District of Columbia
  • U.S. District Court, Southern District of Florida
  • U.S. District Court, Middle District of Florida
  • District of Columbia Courts
  • Florida State Courts
  • New Jersey State Courts
  • Pennsylvania State Courts
John E. Clabby

John E. Clabby

T: 813.229.4229
F: 813.229.4133

John “Jack” Clabby defends companies and their leaders in high-stakes litigation. A former Assistant U.S. Attorney, he represents public and private companies, officers, and directors in shareholder class actions and derivative suits, government investigations, and other litigation alleging corporate and commercial wrongdoing. Mr. Clabby leads the firm’s securities and derivative litigation practice group.

Mr. Clabby also conducts internal investigations for companies and other institutional clients in a variety of areas, including fraud allegations, accounting missteps, and data-theft matters. In addition, he advises corporate boards and management on legal issues regarding cybersecurity.

As an Assistant U.S. Attorney in New Jersey, Mr. Clabby investigated and prosecuted white collar crimes, including financial, mortgage, and government-contract fraud, as well as crimes related to cybersecurity and national security. He began his career as an associate at the litigation firm Williams & Connolly LLP in Washington, D.C., where he represented companies and executives facing securities fraud suits, regulatory enforcement actions, and complex business lawsuits.

Mr. Clabby has significant experience managing large-scale document discovery and e-discovery, working with expert witnesses, and reporting to corporate boards on litigation and investigations. He conducts litigation with careful attention to cost efficiencies, including the use of early-case assessment and predictive coding where possible.