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Christopher Michael Viapiano is a partner in the Firm’s Litigation Group. Mr. Viapiano represents U.S. and non-U.S. companies and financial institutions in complex antitrust, commodities, securities and shareholder derivative litigation, criminal and regulatory enforcement matters and corporate internal investigations. He has represented clients under investigation by the U.S. Department of Justice, the U.S. Securities and Exchange Commission, the U.S. Commodity Futures Trading Commission, the Office of the Comptroller of the Currency, the Federal Reserve, the U.S. Internal Revenue Service and state attorneys general. Mr. Viapiano clerked for the Honorable Donald F. Parsons, Jr. of the Delaware Court of Chancery (2005-2006).


+1-202-956-7500

Christopher Michael Viapiano

Partner
Sullivan & Cromwell
Washington, DC

Practice Area: Antitrust Litigation

BTI Client Service All-Star History

  • 2019
All-Star

WHAT CLIENTS SAY

"Mr. Viapiano is not only very responsive, but also provides decisive advice."
"I respect the practical approach he takes."


ALL-STAR BIOGRAPHY

Christopher Michael Viapiano is a partner in the Firm’s Litigation Group. Mr. Viapiano represents U.S. and non-U.S. companies and financial institutions in complex antitrust, commodities, securities and shareholder derivative litigation, criminal and regulatory enforcement matters and corporate internal investigations. He has represented clients under investigation by the U.S. Department of Justice, the U.S. Securities and Exchange Commission, the U.S. Commodity Futures Trading Commission, the Office of the Comptroller of the Currency, the Federal Reserve, the U.S. Internal Revenue Service and state attorneys general. Mr. Viapiano clerked for the Honorable Donald F. Parsons, Jr. of the Delaware Court of Chancery (2005-2006).

Visit All-Star's Firm »


+1-202-956-7500

Christopher Michael Viapiano

Partner
Sullivan & Cromwell
Washington, DC

Practice Area: Antitrust Litigation

M&A All-Star

ALL-STAR BIOGRAPHY

Christopher Michael Viapiano is a partner in the Firm’s Litigation Group. Mr. Viapiano represents U.S. and non-U.S. companies and financial institutions in complex antitrust, commodities, securities and shareholder derivative litigation, criminal and regulatory enforcement matters and corporate internal investigations. He has represented clients under investigation by the U.S. Department of Justice, the U.S. Securities and Exchange Commission, the U.S. Commodity Futures Trading Commission, the Office of the Comptroller of the Currency, the Federal Reserve, the U.S. Internal Revenue Service and state attorneys general. Mr. Viapiano clerked for the Honorable Donald F. Parsons, Jr. of the Delaware Court of Chancery (2005-2006).

Visit All-Star's Firm »