Jonathan I. Mark

Jonathan I. Mark

Jonathan I. Mark

Senior Counsel

212.701.3100 PhonevCard
212.378.2298 Fax

Cahill Gordon & Reindel LLP
80 Pine Street
New York, NY 10005-1702



  • Dartmouth College, A.B., 1969
  • Columbia Law School, J.D., 1974
  • Clerkship/Government Service

    • Honorable Thomas P. Griesa, United States District Court, Southern District, 1974-1975


    • New York

Jonathan I. Mark is Senior Counsel in Cahill Gordon & Reindel LLP's corporate practice group.

Jon represents issuers and investment banks in public and private financing transactions. Jon's practice has also included advising on Investment Company Act and Investment Advisers Act matters. He has also advised on broker-dealer compliance matters including representing a number of small firms through the broker-dealer registration process. In addition, Jon serves as independent outside counsel to independent directors and Audit Committees of several public companies.

Jon became a partner in 1982 and Senior Counsel in 2017.