Department profile
Sidley Austin LLP

Securities: Regulation: Enforcement

USA Guide 2026 : USA - Nationwide

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Sidley Austin LLP

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About

Provided by Sidley Austin LLP

For more information on the practice, please visit the practice's page at: https://www.sidley.com/en/us/services/securities-enforcement-and-regulatory/

Chambers Review

Provided by Chambers

Securities: Regulation: Enforcement - USA - Nationwide

Band 2

What the Team is Known For

Sidley Austin LLP is an impressive performer in the regulatory enforcement space thanks to its attorneys' in-depth knowledge of regulators and government agencies, while also impressing in the advisory space. The firm is active on behalf of hedge funds and accounting firms on a broad range of matters including insider trading cases, and has particular expertise in handling FINRA and SEC investigations for broker-dealers and other financial institutions. Sidley Austin offers expert representation of public companies in enforcement actions and investigations concerning accounting irregularities, whistle-blowing and other issues as well as advising on regulatory aspects of M&A and SEC reporting and disclosure. It is often involved in matters with complex multijurisdictional elements.

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Work Highlights

Provided by Chambers

  • Sidley Austin LLP represented Accelerant Holdings in the regulatory and disclosure aspects of its $830 million IPO and provided strategic advice post-IPO including, client’s officer determinations and Section 16 filing obligations.

Strengths

Provided by Chambers

  • Sidley consistently delivers clear, outstandingly strategic and practical solutions across its teams. They field a deep bench of knowledgeable and personable attorneys who take the time and effort to develop a solid understanding of our needs.

    Securities: Regulation: Enforcement respondentUSA

  • Sidley's securities regulation team offers insightful, practical solutions to difficult issues.

    Securities: Regulation: Enforcement respondentUSA

  • Sidley is extremely responsive and provide timely, efficient and practical counsel. Their breadth of experience means they are able to deliver truly specialized counsel quickly and effectively.

    Securities: Regulation: Enforcement respondentUSA

  • The team at Sidley provides practical guidance, tailored to our business needs and industry.

    Securities: Regulation: Enforcement respondentUSA

  • Sidley's hallmark is their sophisticated expertise, balanced with risk-adjusted practical advice that is always delivered promptly.

    Securities: Regulation: Enforcement respondentUSA

Notable Practitioners

Provided by Chambers

  • Sonia Gupta Barros
    Sonia Gupta Barros

    Sonia Gupta Barros

    Sonia Gupta Barros regularly advises large corporate clients on securities-related matters involving the SEC, including disclosure obligations, regulatory compliance and shareholder proposals.

    • Sonia is an excellent securities lawyer. She not only knows the law, but has a great sense of what the SEC cares about. She knows how to approach difficult issues in a practical, commercial way.

      Securities: Regulation: Enforcement respondentUSA

    • Sonia has years of industry experience so her advice is very valuable.

      Securities: Regulation: Enforcement respondentUSA

    • Sonia is well thought of and an expert in the field.

      Securities: Regulation: Enforcement respondentUSA

    • Sonia has a thorough understanding of how the SEC works. She is brilliant on remaining practical and solution-oriented on difficult and niche matters and assesses risks well.

      Securities: Regulation: Enforcement respondentUSA

    • Sonia has a high level of specialization in SEC disclosure matters and ends up lending her expertise to hundreds of clients each year with highly technical inquiries.

      Securities: Regulation: Enforcement respondentUSA
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  • Stephen Cohen
    Stephen Cohen

    Stephen Cohen

    Stephen Cohen has wide-reaching capabilities in regulatory enforcement. He is highly effective in representing asset managers and public companies before the SEC in disclosure and reporting matters, as well as in FCPA issues.

    • Stephen is a great leader of his department and has peerless attention to client service.

      Securities: Regulation: Enforcement respondentUSA

    • Stephen is an awesome partner who is super responsive and very client-oriented. He is among the most knowledgeable in the industry.

      Securities: Regulation: Enforcement respondentUSA
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  • Ranah L Esmaili
    Ranah L Esmaili

    Ranah L Esmaili

    Ranah Esmaili brings extensive experience to her practice assisting corporate clients in securities enforcement actions. Her experience includes insider trading, SPAC litigations and regulatory sweeps.

    • Ranah is a very sophisticated lawyer.

      Securities: Regulation: Enforcement respondentUSA

    • Ranah is extremely knowledgeable and responsive. She is incredibly polished when delivering and speaking with us as well as the SEC. Her insight into the SEC has been invaluable.

      Securities: Regulation: Enforcement respondentUSA

    • Ranah is knowledgeable and always on top of things.

      Securities: Regulation: Enforcement respondentUSA

    • Ranah is smart and talented, especially for fund issues.

      Securities: Regulation: Enforcement respondentUSA
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  • Lara Mehraban
    Lara Mehraban

    Lara Mehraban

    Lara Mehraban is regularly called upon for her deft handling of complex enforcement actions and investigations on behalf of senior executives, corporates and financial institutions.

    • Lara is an excellent communicator and negotiator with the SEC. She was well prepared on the facts and the law and was an excellent advocate.

      Securities: Regulation: Enforcement respondentUSA

    • Lara is incredibly sharp and intellectual.

      Securities: Regulation: Enforcement respondentUSA

    • Lara's expertise, balance and calmness has been instrumental in managing a difficult process in the right way. Her knowledge and connections have been crucial for quality advice.

      Securities: Regulation: Enforcement respondentUSA
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Ranked Individuals at Sidley Austin LLP (4)

USA - Nationwide

Members

Provided by Sidley Austin LLP

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