James Heyworth


JIM HEYWORTH is an associate in Sidley’s New York office. Jim represents corporations, professional services firms and individuals in a variety of complex commercial litigation matters. Such litigation commonly has involved allegations of violations of the Securities Act of 1933, the Securities Exchange Act of 1934 and the Investment Company Act of 1940. He has represented clients in federal and state courts throughout the United States, as well as various arbitral forums. Jim also has experience representing clients in SEC, DOJ and FINRA investigations.


Representative engagements include:

  • Representation of JPMorgan Chase & Co. and affiliated entities in actions brought by the Federal Deposit Insurance Corp. (FDIC) in connection with offerings of mortgage-backed securities 
  • Representation of Deutsche Bank affiliates and individuals in putative class action alleging violations of the Securities Exchange Act of 1934 in connection with closed-end investment funds (Motion to dismiss granted, 738 F.Supp.2d 432 (S.D.N.Y. 2010))  
  • Representation of Magna International Inc. and its officers in a putative class action alleging violations of the Securities Exchange Act of 1934 (Motion to dismiss granted, 2013 WL 4505256 (S.D.N.Y. Aug. 23, 2013)) 
  • Representation of JPMorgan Chase-affiliated entities in bankruptcy adversary proceeding brought by the Chapter 7 trustee of HomeBanc Corp. in connection with disputed repurchase transactions (Motion for summary judgment granted, 2013 WL 211180 (D. Del. Bkry Jan. 18, 2013)) 
  • Representation of Big Four accounting firm in putative class action alleging violations of the Securities Exchange Act of 1934 arising from the failure of a bank  
  • Representation of a former CEO of a government sponsored enterprise in connection with a class action lawsuit related to alleged breaches of federal securities laws  
  • Representation of a Big Four accounting firm in defense of nationwide class action lawsuits alleging violations of the Fair Labor Standards Act  
  • Representation of a healthcare services company in New York State Court in defense of claims brought by bondholders’ trustee arising from alleged breach of indenture agreement 
  • Representation of a financial institution in connection with regulatory and internal investigations into certain practices relating to mortgage backed securities 

Jim’s securities litigation experience includes representation of issuers, investment banks, investment advisers and individuals in class actions, derivative actions, and other litigation matters involving equity securities, mutual funds, mortgage and other debt securities and complex derivative securities. 

Jim received a B.A. from Cornell University and a J.D. from Fordham University School of Law, where he was an associate editor of the Fordham Urban Law Journal. While in law school, Jim was distinguished for achievements in legal writing. 

Pro Bono

Jim also maintains an active pro bono practice and has co-authored a practice guide on the use of electronic discovery, specifically focused on social media, in domestic violence litigation.