Margaret Thomas

King & Spalding

My Contact Information

King & Spalding


Washington DC


 Professional Profile

Maggie’s practice focuses on government investigations, white-collar criminal proceedings, and False Claims Act and whistleblower litigation.  Her experience includes defending individuals and companies in investigations by the Department of Justice (DOJ), the Securities and Exchange Commission (SEC), U.S. Attorneys’ Offices, and states Attorneys General Offices.  In addition, Maggie has experience conducting internal investigations and counseling clients on sensitive internal matters.   


Representative Matters

Represented a major financial institution in connection with a Department of Justice investigation into the origination and sale of residential mortgage backed securities.

Represented a pharmaceutical manufacturer in investigation related to kickback and off-label promotion issues by the Department of Justice and multiple U.S. Attorneys’ Offices, the Department of Health and Human Services Office of Inspector General, and various state Attorneys General, as well as parallel federal False Claims Act qui tam litigation.

Represented individuals and corporations in investigations involving the Department of Justice and U.S. Attorney’s Offices.

Representing a global pharmaceutical company in qui tam litigation regarding government price reporting issues.


Other Distinctions

Named a “Rising Star” for Criminal Defense: White Collar in Washington SuperLawyers in 2019.

Practice Areas

  • Foreign Corrupt Practices Act
  • Government Investigations
  • Internal Investigations