Agnès is a leading securities litigator whose practice spans high-stakes securities class actions, complex commercial litigation, and regulatory investigations. She serves as a trusted advisor to investment banks, corporate issuers, directors, and officers, regularly representing them in major securities matters across the country. Her investigative work includes matters involving the DOJ, SEC, CFTC, FINRA, and various banking and state regulatory authorities. She has also represented clients in antitrust litigation and provides strategic counsel to clients in matters involving transactions and financing.
Recognized early in her career, Agnès was named a “Rising Star” in Securities by Law360 and featured in Benchmark Litigation’s inaugural “Under 40 Hot List” in 2016. She has been consistently ranked by Chambers (currently Band 2) for securities litigation and has earned accolades such as “Leading Partner” in Securities Litigation Defense from Legal 500, “Litigation Star” and one of the “Top 250 Women in Litigation” from Benchmark Litigation, and was named North America Securities Lawyer of the Year in the IFLR Women in Business Law Awards 2025.
Agnès previously served as a law clerk to Judge Robert D. Sack of the U.S. Court of Appeals for the Second Circuit and Judge Kimba M. Wood of the U.S. District Court for the Southern District of New York.
In addition to her practice, Agnès is actively engaged in pro bono work, reflecting her commitment to public service and access to justice.
Prior to joining Freshfields, Agnès’ recent representations include:
- Uber Technologies in consolidated putative securities class action in connection with initial public offering, asserting claims under the Securities Act.
- PayPal Holdings in consolidated putative securities class action alleging claims under the Securities Exchange Act.
- Paramount Global in putative securities class action in connection with a public offering.
- Underwriter syndicates including, variously, J.P. Morgan, Citigroup, Barclays, Citigroup, Credit Suisse, Goldman Sachs, Morgan Stanley, and other global banks, in securities class actions on behalf of investors in companies such as Benefitfocus, AMC, Evoqua, Mesa Air, CPI Card Group, Sprouts, Endocyte Pharmaceuticals, Nationstar, Biozoom and others.
- Citibank in action brought in NY federal court by counterparty in currency hedging trade claiming fraud and negligence and litigated through trial.
- BNP Paribas in putative class actions under antitrust laws in connection with U.S. Treasury securities and Government-Sponsored Entities (GSE) bonds.
- Barclays in securities litigations in connection with residential mortgage-backed securities.
- Nomura in numerous RMBS loan repurchase litigations.
- Former CFO of brand management company in connection with securities class action and derivative actions.
- Major global banks in investigations by numerous authorities related to subjects such as securities, antitrust/price fixing, market manipulation, and compliance and controls.
- Major financial institution in securities litigation relating to high-frequency trading and dark pools.
- Major financial institutions in Delaware Chancery Court and other state court litigations relating to change-of-control rights.
- Natixis in appeal to Second Circuit related to Nigerian oil warrants.
- Barclays Capital in litigation over Archstone Holdings, Inc., including an expedited trial.
- Telecommunications company in a putative class action brought in connection with the company’s initial public offering, for alleged breaches of Section 11 of the Securities Act of 1933.
- Companies and directors and officers in connection with shareholder litigations related to mergers and acquisitions, brought in several states.
- Prominent private equity investment group in connection with an international acquisition.
- DIRECTV and DISH in petition for certiorari to United States Supreme Court in litigation involving Commerce Clause.
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