Catherine M. Clarkin

Cathy Clarkin is a partner in Sullivan & Cromwell’s Capital Markets and Financial Services Groups and is co-head of the Firm’s Capital Markets Group. She advises clients on a wide variety of capital market transactions across a broad range of industries. Cathy has advised on many high-profile public and private offerings of equity and debt securities by U.S. and non-U.S. issuers, including IPOs, secondary offerings, complex debt issuances, liability management transactions and securities issued in connection with M&A and joint ventures. She regularly advises clients on ongoing public company matters, including corporate governance, ESG, cybersecurity and disclosure matters.
Cathy is a frequent speaker and author in the areas of securities law and ESG. She serves on the board of Lawyers Alliance for New York and is a member of the NYC Bar Securities Regulation Committee. She received her B.A. from American University and J.D. from Catholic University Law School.