Caroline Zalka

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Biography

Caroline Zalka
Caroline Hickey Zalka is Head of Weil’s Securities Litigation practice and a member of the Firm’s Management Committee. A trial and appellate litigator, she defends the full suite of shareholder litigation and complex business matters in courts and arbitrations nationwide, with particular depth in private equity disputes, including acquisition-related disputes and LP/GP and fund-level matters.

Forbes named Caroline one of America’s Top Women Lawyers in 2026, and Euromoney honored her as North America Securities Lawyer of the Year at its Women in Business Law Americas Awards that same year. She was selected to three 2025 Lawdragon 500 lists — “Leading Lawyers in America,” “Leading Litigators in America,” and “Leading Global Litigators.” Chambers USA ranks Caroline as a leading securities litigator in New York, with clients describing her as “a brilliant lawyer — not only a great strategist and a great writer, but a very, very commanding personality in an adversarial setting,” someone whose “depth of understanding, both of the relevant facts and of applicable law, is consistently impressive,” who “stands out for how she understands the business objectives and how to get there in the least painful way,” and is “very sharp at seeing around corners.” Benchmark Litigation has named her a “Local Litigation Star” in New York for Securities Litigation, while Legal 500 recognizes her nationally as a top-ranked “Leading Partner” for Securities Litigation: Defense, and recommends her for M&A Litigation: Defense, based on her “incredible practical advice.”

Beyond the courtroom, Caroline advises boards of directors, board committees, and senior management on securities law, corporate governance, disclosure, and regulatory matters. She has deep experience with internal investigations and governmental and regulatory proceedings, including those brought by the DOJ, SEC, New York Attorney General’s Office, and New York District Attorney’s Office.

Selected Experience

Lululemon — Representing lululemon athletica, its senior officers and directors in parallel securities class action and multiple shareholder derivative proceedings. Previously secured dismissal of a nationwide greenwashing class action — one of the first such claims tested at the motion to dismiss stage.

Warner Bros. Discovery — Successfully defended WBD in a putative securities class action arising from the industry-defining $43 billion merger between AT&T’s WarnerMedia and Discovery that formed one of the world’s largest media companies.

Digital Currency Group — Representing leading digital asset venture capital firm DCG and certain executives in a high-stakes securities fraud class action stemming from an alleged scheme to conceal an impending loss, and a related action challenging representations about a subsidiary’s solvency.

Carlyle Group — In a landmark MAE clause dispute in Delaware Chancery Court, defeated a motion for expedited trial seeking to force Carlyle to close on a significant investment in AmEx Global Business Travel at the height of COVID-19-related financial turbulence.

BTG Pactual — Following a multi-week arbitration trial before a Swiss tribunal, secured a $270 million settlement for Brazilian investment bank BTG Pactual in a complex cross-border dispute arising from its acquisition of a Swiss bank later revealed to be a conduit for fraud linked to sovereign wealth fund 1MDB.

JBS USA — Represented the second-largest U.S. poultry producer in securities class action and shareholder derivative proceedings arising from an alleged industry-wide antitrust conspiracy, with related appellate litigation before the Tenth Circuit.

Sanofi — Represented Sanofi, its Genzyme subsidiary, and certain senior executives in federal securities class actions, producing a leading Second Circuit decision interpreting the Supreme Court’s Omnicare standard for opinion liability.

Additional representations include Blackstone, Morgan Stanley, Walgreens Boots Alliance, Marathon Digital Holdings, Archstone-Smith, Ascena Retail Group, and Aéropostale.

Pro Bono & Community

Caroline co-heads Weil’s Violence Against Women Act initiative, representing immigrant victims of domestic abuse. She is a member of the Leadership Advisory Committee of the National Women’s Law Center, with which she submitted an amicus brief to the Sixth Circuit in support of former Ohio State University students who were victims of sexual abuse. She also serves on the board of the New York Legal Assistance Group, one of New York City’s largest legal aid providers.

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