M. Jonathan Seibald

Of Counsel

Jonathan Seibald is Of Counsel in the New York office of Gibson, Dunn & Crutcher and a member of Gibson Dunn’s Litigation Practice Group. His practice focuses on white collar defense, securities enforcement matters, FCPA compliance, internal investigations, and complex securities and commercial litigation.

He has been recognized by The Best Lawyers in America® as “One to Watch” in the area of Litigation – Securities and Securities Regulation.

Representative Government and Internal Investigation Matters include:

  • Representation of global nutrition company in an investigation before the DOJ and SEC of potential FCPA violations, as well as in an investigation before the SEC relating to its public disclosures regarding the business model of certain foreign subsidiaries.
  • Represented global oil and gas services company in internal investigation spanning more than a dozen countries, on five continents, resulting in no charges brought anywhere globally
  • Representation of lender to small public companies in SEC enforcement action alleging violation of dealer registration requirements
  • Represented investment adviser in SEC investigation relating to potential securities fraud in connection with the sale of proprietary products to investors
  • Represented food company in internal investigation relating to compliance with economic sanctions laws
  • Represented broker-dealer in federal and state municipal bonds and telemarketing investigations
  • Represented broker-dealer and investment bank in multiple coordinated regulatory investigations and class actions arising out of sale of structured products issued by Lehman Brothers
  • Represented third-party witness in SEC action against an investment management firm and its co-founder for false advertising relating to the track record of an index product they marketed
  • Pre-acquisition FCPA due diligence for gaming company relating to potential casino and resort investment
  • Internal investigations for automobile manufacturer relating to potential FCPA issues

Representative Complex Securities and Commercial Litigation Matters include:

  • Successfully defended American General, an AIG Company, against misappropriation of trade secrets and breach of confidentiality claims seeking over a billion dollars in damages, securing plaintiffs’ dismissal of action with prejudice after extensive discovery and motion practice, and numerous court hearings
  • Successfully defended majority shareholder in lawsuit seeking to prevent sale of medical device company
  • Defense of multiple small public company investors in issuer lawsuits seeking to void transactions based on alleged violations of federal and state securities laws
  • Represented semiconductor products and services provider Semsysco GMBH in breach of contract lawsuit against semiconductor manufacturer in connection with development and purchase of specialized tool used in semiconductor manufacturing
  • Represented sellers in post-acquisition dispute in lithium-ion battery industry relating to merger agreement’s earnout provisions and claims of fraudulent inducement, which were successfully resolved in mediation
  • Represented mining company in post-acquisition dispute relating to claims for breach of contract and fraudulent inducement
  • Represented major retailer in securities class action relating to allegations of FCPA violations

Jonathan’s pro bono practice has focused on representing individuals seeking asylum in the United States.

He graduated magna cum laude in 2007 from Harvard Law School, where he was a member of the Harvard International Law Journal. Jonathan received his Bachelor of Arts degree in Economics and Government from Cornell University in 2003. He graduated with distinction in all subjects and was elected to Phi Beta Kappa. After graduating from Cornell, Jonathan worked in Washington, D.C. as an aide to Congresswoman Nita M. Lowey.

Jonathan is admitted to practice law in the State of New York and the United States District Courts for the Southern and Eastern Districts of New York.

Capabilities

Credentials

Education:
  • Harvard University - 2007 Juris Doctor
  • Cornell University - 2003 Bachelor of Arts
Admissions:
  • New York Bar