
Derivatives: Mainly Regulatory
USA Guide 2026 : USA - Nationwide
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Ranked Individuals
About
Provided by Sullivan & Cromwell LLP
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Strengths
Provided by Chambers
Sullivan & Cromwell provides exceptional representation in complex matters. They don't just react, they proactively develop an effective defense strategy.
Derivatives: Mainly Regulatory respondentUSASullivan & Cromwell provide technical expertise which is not available elsewhere. They have highly sophisticated attorneys that understand the interactions between numerous statutes and regulations.
Derivatives: Mainly Regulatory respondentUSA
Notable Practitioners
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Senior Statespeople 
Senior Statespeople 
David J Gilberg
David Gilberg has an impressive practice which sees him frequently advise on regulatory matters, including on the rules surrounding digital assets. David has a comprehensive understanding of the law and a legal intellect with a good balance of creativity and conservatism.
Derivatives: Mainly Regulatory respondentUSADavid is an experienced derivatives attorney who gives expert and practical advice.
Derivatives: Mainly Regulatory respondentUSA
Senior Statespeople 
Senior Statespeople 
Kenneth M Raisler
Kenneth Raisler has long been highly regarded for his regulatory practice and he is especially recommended for his expertise in matters involving the CFTC. Band 1 
Band 1 
Colin Lloyd
Colin Lloyd has a flourishing regulatory practice, regularly advising on matters impacting both the US and international jurisdictions. He is the market regulator whisperer. He is thoughtful and measured in his responses and super efficient.
Derivatives: Mainly Regulatory respondentUSAColin is a top notch regulatory attorney who has experience in existing areas such as derviatives and securities laws and also in-depth knowledge in new and novel areas such as digital assets.
Derivatives: Mainly Regulatory respondentUSAColin is truly one of a kind. He has a unique understanding, expertise, vision and is incredibly supportive.
Derivatives: Mainly Regulatory respondentUSAColin is a talented and creative lawyer. He is smart as a whip and has a comprehensive understanding of the law in this area.
Derivatives: Mainly Regulatory respondentUSAColin's expertise on insolvency regimes and market regulation is unmatched.
Derivatives: Mainly Regulatory respondentUSA
Band 1 
Band 1 
James McDonald
James McDonald brings a wealth of experience in enforcement and is regularly seen representing clients in regulatory and compliance investigations related to their trading activities. He understands the DOJ, the nuances of laws and regulations and thinks at levels that others can't.
Derivatives: Mainly Regulatory respondentUSA
Band 1 
Band 1 
Kathleen S. McArthur
Kathleen McArthur's regulatory, enforcement and investigations expertise make her well placed to handle cases involving market manipulation. Kathleen is fantastic, she has deep industry knowledge, is always available and is both practical and knowledgeable on what needs to happen. Her work product is always exceptional.
Derivatives: Mainly Regulatory respondentUSA
Band 1 
Band 1 
Rebecca J Simmons
Rebecca Simmons' broad regulatory knowledge makes her a popular choice for trading associations and financial services firms. Rebecca's knowledge of FCM regulation and insolvency is unmatched.
Derivatives: Mainly Regulatory respondentUSA
Ranked Individuals at Sullivan & Cromwell LLP (12)
Members
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David J Gilberg
View profile of David J Gilberg
Colin Lloyd
View profile of Colin Lloyd
Kenneth M Raisler
View profile of Kenneth M Raisler
Rebecca J Simmons
View profile of Rebecca J Simmons
Kathleen S. McArthur
View profile of Kathleen S. McArthur
James McDonald
View profile of James McDonald
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