Ranked in 3 Practice Areas
E

Eminent Practitioners

3

Band 3

Securities: Regulation: Enforcement

USA - Nationwide

2 Years Ranked

Ranked in Guides

About

Provided by Karen Patton Seymour

USA

Practice Areas

White-collar criminal defense, internal investigations, crisis management, complex commercial litigation, corporate governance

Career

Karen Patton Seymour is a member of the S&C’s Management Committee. She has a multidisciplinary practice focusing on corporate governance, crisis management, complex commercial litigation, white-collar criminal defense, and internal investigations involving a wide variety of subjects.

Ms. Seymour rejoined the Firm in 2021 from Goldman Sachs, where she served as Executive Vice President and General Counsel and was a member of the Management Committee. She oversaw the firm’s strategy regarding class action and other litigation and enforcement issues and served as a key advisor to the firm across a wide variety of legal and reputational matters.

Prior to her time at Goldman Sachs, Ms. Seymour was co-managing partner of S&C’s Litigation Group and represented corporations and individuals in state and federal investigations and proceedings involving allegations of securities fraud and insider trading, FCPA, anti-money laundering, OFAC sanctions, and criminal antitrust violations. She often worked on complex, multi-jurisdictional matters, such as leading the negotiations of numerous significant settlements involving multiple jurisdictions. Illustrative of this is the high profile sanctions settlement Ms. Seymour secured for BNP Paribas in 2014 for which the Financial Times noted the “limited fallout.” Ms. Seymour has tried numerous jury and bench trials in federal court and argued many appeals before the U.S. Court of Appeals for the Second Circuit. She has deep experience representing corporations and individuals outside of the United States in responding to U.S. inquiries and investigations, and assisting in complex international investigations.

From 2002 to 2004, Ms. Seymour served as Chief of the Criminal Division for the U.S. Attorney’s Office for the Southern District of New York, where she supervised 165 federal prosecutors and oversaw all criminal investigations and prosecutions in the district.

Professional Memberships

Member, The Board of Trustees of The Metropolitan Museum of Art; Trustee, The University of Texas Law School Foundation; Member, American Law Institute – Adviser on Restatement of the Law Third, Conflict of Laws project and on Principles of the Law, Compliance, Enforcement, and Risk Management for Corporations, Non-Profits, and Other Organizations; Board Member, Perlman Music Program; Board Member, Public Art Fund; Honorary Trustee, Vera Institute of Justice

Personal

University of London, LL.M., 1987; The University of Texas School of Law, J.D., 1986; Southern Methodist University, B.A./B.S., 1983

Chambers Review

Provided by Chambers

USA

Financial Services Regulation: Banking (Enforcement & Investigations) - USA - Nationwide
E
Eminent Practitioners

Karen Patton Seymour rejoined the Sullivan & Cromwell investigations team from her role as general counsel at a major international investment bank. She brings with her decades of experience at the forefront of the banking enforcement space.


Litigation: White-Collar Crime & Government Investigations - New York
Star Individuals

Karen Patton Seymour offers longstanding expertise in the most complex of white-collar criminal mandates, including large-scale multijurisdictional investigations. Her practice also includes civil disputes and crisis management.


Securities: Regulation: Enforcement - USA - Nationwide
3
Band 3

Karen Patton Seymour is a respected practitioner with extensive experience advising and representing clients in the securities space. Her particular focus is financial services regulation.

Strengths

Provided by Chambers

Discover other Lawyers at
Sullivan & Cromwell LLP

Provided by Chambers
Filter by
Band

California

Capital Markets: Debt & Equity

John L Savva
2
John L Savva
2
Band 2
Sarah P. Payne
2
Sarah P. Payne
2
Band 2
Alison S Ressler
3
Alison S Ressler
3
Band 3
Patrick S Brown
3
Patrick S Brown
3
Band 3
Intellectual Property: Patent Litigation

Andrei Iancu
4
Andrei Iancu
4
Band 4
Litigation: General Commercial

Robert A Sacks
2
Robert A Sacks
2
Band 2
Michael H Steinberg
4
Michael H Steinberg
4
Band 4
Litigation: Securities

Robert A Sacks
1
Robert A Sacks
1
Band 1
Brendan P Cullen
4
Brendan P Cullen
4
Band 4
Private Equity: Buyouts

Alison S Ressler
1
Alison S Ressler
1
Band 1
Rita-Anne O'Neill
2
Rita-Anne O'Neill
2
Band 2
Technology

Nader A Mousavi
1
Nader A Mousavi
1
Band 1
Mark Schenkel
U
Mark Schenkel
U
Up and Coming

California: Los Angeles & Surrounds

Corporate/M&A

Alison S Ressler
1
Alison S Ressler
1
Band 1
Eric M Krautheimer
3
Eric M Krautheimer
3
Band 3

California: San Francisco, Silicon Valley & Surro

Corporate/M&A

Michael Ringler
1
Michael Ringler
1
Band 1

District of Columbia

Antitrust

Renata Hesse
1
Renata Hesse
1
Band 1
Joseph Matelis
3
Joseph Matelis
3
Band 3
Samantha Hynes
U
Samantha Hynes
U
Up and Coming
Labor & Employment

Julia Jordan
4
Julia Jordan
4
Band 4
20 of 140 results