Agnès Dunogué


Agnès Dunogué is a partner in the firm’s Litigation Group.

Ms. Dunogué's practice focuses on securities litigation, as well as complex commercial litigation and appellate litigation. Ms. Dunogué has represented investment banks, other companies, and directors and officers in numerous securities matters in state and federal courts. She has also advised clients in the context of mergers and acquisitions, and has represented companies in investigations by the SEC and the New York Stock Exchange.

Ms. Dunogué currently represents Barclays Capital in several litigations throughout the country, in connection with residential mortgage-backed securities, including in actions brought by various Federal Home Loan Banks. Ms. Dunogué is also representing Nomura Holdings, in numerous RMBS loan repurchase litigations.

Ms. Dunogué’s practice includes representing clients in appellate matters in a number of state and federal courts. Among other engagements, Ms. Dunogué represents a CDO manager in a securities fraud lawsuit pending in the Court of Appeals for the Second Circuit. She also represented a client in an appeal involving a dispute regarding the estate of fashion designer Oleg Cassini. Ms. Dunogué also briefed and argued an appeal to the New York Supreme Court, Appellate Division, of a Family Court decision, on behalf of a pro bono client, obtaining a unanimous reversal of the order that had been entered against her client; the appellate decision was reported in the New York Law Journal.

Ms. Dunogué is a former law clerk to Judge Robert D. Sack, on the U.S. Court of Appeals for the Second Circuit, and Judge Kimba M. Wood, on the U.S. District Court for the Southern District of New York.

Selected Experience

  • Represented Barclays Capital in litigation over Archstone Holdings, Inc. After an expedited trial in the Southern District of New York, the court found for Barclays on all issues, allowing Barclays and BofA Merrill to dispose of several billion dollars in disputed assets.
  • Represented a 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.
  • Represented companies and directors and officers in connection with shareholder litigations related to mergers and acquisitions, brought in several states.
  • Counseled a prominent private equity investment group in connection with an international acquisition.


  • Yale Law School, J.D., 2004
  • Harvard University, B.A., 1998, summa cum laude


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