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Ghillaine co-leads the Securities Investigations + Enforcement Practice Group at Troutman Pepper. She focuses her practice on government and securities regulatory investigations, financial services litigation, commercial litigation, and corporate compliance. Drawing on her experience in government service and private practice, Ghillaine regularly represents corporations and individuals in investigations conducted by the Securities & Exchange Commission, the Department of Justice, the Financial Industry Regulatory Authority, and other government and regulatory agencies. Ghillaine has successfully defended several high profile SEC investigations and enforcement proceedings involving a wide range of significant issues, including insider trading, accounting fraud, market manipulation, and broker-dealer sales practice violations. Prior to entering private practice, Ghillaine was a Branch Chief and Staff Attorney in the New York Regional Office of the Securities & Exchange Commission’s Division of Enforcement, where she investigated and litigated a wide range of securities enforcement matters.

On March 11, the Securities and Exchange Commission (SEC) and Commodity Futures Trading Commission (CFTC) signed a memorandum of understanding (MOU) that both agencies describe as “historic.” The MOU is intended to reset the relationship between the agencies by reducing turf battles, avoiding duplicative regulation, and providing clearer, technology-neutral oversight — particularly in markets where securities and derivatives regimes overlap, including crypto. While it does not change either agency’s statutory authority, it creates a formal framework for coordination that will materially affect how policy, examinations, and enforcement play out in practice.

Today, the Securities and Exchange Commission’s (SEC) Division of Enforcement announced significant updates to its Enforcement Manual, the first comprehensive revision since 2017. These changes, which will now be reviewed annually, are designed to promote greater fairness, transparency, and efficiency in SEC investigations and enforcement actions.

At the Securities Enforcement Forum New York 2026, held on February 5, U.S. Attorney for the Southern District of New York (SDNY) Jay Clayton outlined enforcement priorities that should capture the attention of prediction market operators, crypto market participants, and public companies. As reported by Law360, Clayton made clear that the SDNY is actively considering how existing laws apply to prediction markets and that he fully expects fraud cases to be brought in that space. He also stressed that crypto markets are not exempt from traditional fraud scrutiny and described an enforcement approach that encourages companies to self-report misconduct and cooperate in exchange for potential nonprosecution agreements.

In 2025, the U.S. digital asset landscape evolved more dramatically than in any year since the industry’s inception. A pro‑innovation White House, an active Congress, and key regulators — including the U.S. Securities and Exchange Commission (SEC), the Commodity Futures Trading Commission (CFTC), the Office of the Comptroller of the Currency (OCC), the Department of

The Financial Industry Regulatory Authority (FINRA) has proposed a sweeping update to how broker‑dealers handle outside business activities and private securities transactions. FINRA seeks to consolidate and replace Rules 3270 (Outside Business Activities of Registered Persons) and 3280 (Private Securities Transactions of an Associated Person) with a single new rule: Rule 3290 (Outside Activities Requirements). The proposal preserves the core investor protection concepts of the existing rules but refocuses them on investment‑related activities.

Troutman Pepper Locke’s Securities Investigations and Enforcement team counsels and defends clients through all stages of securities enforcement proceedings. Our attorneys have served in key government agencies and regulatory bodies, and bring their insight to bear in each representation. The team includes a former branch chief of the Division of Enforcement at the SEC, former enforcement lawyers, regulators and government attorneys, assistant United States Attorneys and former assistant attorneys general, as well as in-house counsel for public companies. Our lawyers and practice have been identified as leaders in the field by publications such as the Legal 500, SuperLawyers, Benchmark Litigation, and Chambers USA.

On January 9, the U.S. Supreme Court granted certiorari in Ongkaruck Sripetch v. U.S. Securities and Exchange Commission (SEC). The case arises out of an SEC civil enforcement action in the Ninth Circuit and squarely presents an important remedial question that the Court left open in Liu v. SEC, i.e., what counts as a “victim” for purposes of SEC disgorgement, and does the SEC have to show that investors actually lost money before it can obtain that relief?

The Financial Industry Regulatory Authority’s (FINRA) 2026 Annual Regulatory Oversight Report is the most current and comprehensive statement of FINRA’s priorities and expectations for member firms. It does not create new legal obligations, but it is clearly designed as an exam and enforcement roadmap. The 2026 Report weaves together FINRA’s FINRA Forward modernization program, new and evolving risks (especially cyber‑enabled fraud and generative AI (GenAI)), and detailed observations on firms’ supervisory, operational, and financial controls. Firms should use it as a structured checklist for 2026 risk assessments, revisions to written supervisory procedures (WSPs), and enhancements to testing, surveillance, and training.

Troutman Pepper Locke’s Securities Investigations + Enforcement Practice

Troutman Pepper Locke’s Securities Investigations and Enforcement team counsels and defends clients through all stages of securities enforcement proceedings. Our attorneys have served in key government agencies and regulatory bodies, and bring their insight to bear in each representation. The team includes a former branch chief of

On September 26, Securities and Exchange Commission (SEC) Chair Paul S. Atkins announced a return to the SEC’s prior practice of allowing individuals and entities facing enforcement actions to request that the SEC simultaneously consider both their settlement offers and any related waiver requests. Waivers may be necessary to avoid automatic disqualifications and collateral consequences that can result from enforcement actions, such as the loss of well-known seasoned issuer status, safe harbor protections, private offering exemptions, or the ability to serve in certain regulated capacities.