Partner

1285 Avenue of the Americas W:
New York, NY 10019

+1 212 373 3321

Local Litigation Star

National Practice Area Star

Top 250 Women in Litigation


Practice area:

Securities


A partner in the Litigation Department, Claudia Hammerman has extensive experience in handling a broad range of litigation and regulatory matters with particular emphasis defending financial institutions and corporations in complex securities and commercial matters as well as representing financial institutions and other clients before the SEC, the Department of Justice and federal and state regulatory authorities.


Claudia has represented numerous financial institutions and Fortune 100 companies in various confidential internal investigations.


Claudia has served as litigation counsel on significant securities and commercial disputes for Citigroup, JPMorgan, Wachovia, Bank of New York Mellon and Bank of America. 


Among her recent significant matters, Claudia:

  • Represented Citigroup in connection with various CDO and other subprime-related litigations and regulatory matters.
  • Represented Bank of America in connection with certain regulatory investigations.
  • Represented Bank of New York Mellon in various litigations and regulatory matters relating to foreign exchange transactions.
  • Represented Citigroup in all litigations and regulatory matters relating to Lehman
  • Brothers’ bankruptcy and SIPC proceeding.
  • Represented Citigroup in all litigations and regulatory matters relating to Enron’s bankruptcy.
  • Represented JPMorgan in litigations and regulatory matters relating to its dealings with Delphi Corporation.
  • Represented Citigroup in litigations and regulatory matters relating to its dealings with Dynegy.
  • Represented Wachovia in litigations relating to auction rate securities. 


Claudia has been selected by her peers for The Best Lawyers in America and Super Lawyers and by Benchmark Litigation as a Litigation Star and one of the Top 250 Women in Litigation.


Claudia has taught several courses in Constitutional Law at Smith College and at Haverford College, and served on the Harvard Law Review. In 1991-92, she clerked for Judge Jon O. Newman, former chief judge of the Second Circuit Court of Appeals.


Updated July 2021