Veronica Callahan co-chairs the firm's Securities Enforcement and Litigation Group. She concentrates her practice on complex financial litigation, SEC and PCAOB enforcement actions and white collar criminal matters. Her clients include hedge funds and private equity funds, accounting firms, banking institutions, public issuers and underwriters. Ms. Callahan has successfully defended securities class action and individual litigations; fiduciary duty, suitability and common-law fraud claims; accountant liability matters and minority shareholder disputes. She has also efficiently led internal investigations and defended enforcement actions involving complex valuation, financial reporting, and insider trading issues. Ms. Callahan also has successfully arbitrated matters and negotiated complex settlements. She regularly writes and lectures on issues facing the financial markets.


One Year Later: Regulators Issue Guidance to Financial Professionals and Firms About the Senior Safe Act
SEC Scrutinizes Registered Investment Adviser’s Statements to Investors About Due Diligence
Securities Enforcement and Disputes and the Life Sciences Industry
Arnold & Porter Seminar
Awaiting Supreme Court Clarification on Fraudulent Scheme Claims
Harvard Law School Forum on Corporate Governance and Financial Regulation
Testing the Limits of Morrison
Harvard Law School Forum on Corporate Governance and Financial Regulation


The Legal 500 US
Securities Litigation: Defense (2014-2019)
Chambers USA
Litigation: Securities (New York) (2015-2019)


  • JD, University of California, Hastings College of the Law, 1995
  • BA, State University of New York at Albany, 1992
  • New York
  • Member, New York City Bar

  • Member, Board of Directors of New York County Lawyer’s Association Foundation, a not-for-profit entity whose mission is to improve the administration of justice and to facilitate the cultivation and diffusion of knowledge and understanding of the law and the promotion of the study of the law and the science of jurisprudence.

  • Member, American Bar Association, Section of Business Law

  • Member, American Bar Association, ABA Women Rainmakers

  • Member, SIFMA Compliance & Legal Society


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