David Kleban is a Partner in the Firm’s Litigation department, where he represents clients in a variety of litigation contexts from pre-suit investigation through appeal and judgment collection. Mr. Kleban has assisted major media entities in the enforcement of their intellectual property rights in news content. He has also advised and represented investment firms and monoline insurers regarding claims concerning mortgage-backed securities. He has represented clients in SEC and CFTC investigations, among other complex investigations and lawsuits.

Representative Matters

Enforcement of intellectual property rights in news content on behalf of major media entities.

Prosecution of fraud and breach-of-contract claims on behalf of monoline insurers against sponsors and originators of mortgage-backed securities.

Representation of an innovator pharmaceutical company in connection with patent claims against the manufacturer of a biosimilar version of the innovator’s blockbuster drug.

Defense of claims against a non-profit organization relating to U.S. government-sponsored medical experiments in the 1940s.

Guidance to investors in mortgage-backed securities, including analysis of procedural and substantive litigation considerations.

Representation of a company and its founder in an SEC investigation and administrative proceeding concerning alleged violations of securities law, resulting in favorable settlement of the claims.

Representation of a European bank in connection with an industry-wide investigation and private class action suit concerning alleged manipulation of a benchmark rate used for interest rate swaps and swaptions.

Pro bono prosecution of negligence claims on behalf of tenants affected by a seven-alarm fire in New York’s Chinatown.

  • U.S. Supreme Court
  • U.S. Court of Appeals, Second Circuit
  • U.S. District Court, Southern District of New York
  • U.S. District Court, District of Colorado
  • New York