Colleen NoonanRyan


New York + 1.212.326.3444

Colleen Noonan Ryan regularly counsels companies undertaking internal investigations and defending white collar criminal and regulatory matters.

Colleen has significant experience conducting internal investigations on highly sensitive issues for companies in a wide range of industries. She also has defended clients before the DOJ, the SEC, the CFTC, and other government agencies. Colleen frequently works with clients on compliance-related issues, including assisting clients with designing and strengthening their corporate compliance programs. She also has experience representing clients in complex commercial litigation, including securities litigation and financial litigation.

Colleen maintains an active pro bono practice. She recently served as CJA appointed counsel for a client facing federal criminal charges. Colleen also has represented domestic violence victims and individuals seeking asylum. She is a member of the New York State Bar Association.


  • Citizens Financial Group secures dismissals of putative class action claimsJones Day client Citizens Financial Group Inc. (“Citizens”) secured dismissals of putative class action complaints brought by two shareholders who claim that Citizens violated the Securities Exchange Act of 1934 by making alleged misstatements regarding the extent to which customer appointments were made or kept.
  • Private equity firm pursues fraud claims related to sale of portfolio companyJones Day is serving as lead counsel to a private equity firm and its portfolio company in significant litigation asserting fraud and breaches of contractual representations and warranties in connection with the acquisition of the portfolio company.
  • IBM resolves claims related to alleged exposure to toxic emissionsJones Day client International Business Machines Corporation (IBM) resolved numerous claims brought by hundreds of current and former residents of Endicott, NY alleging personal injuries, diminution in property values, and other damages related to alleged vapor intrusion and historic air emissions in the area from IBM's former manufacturing facility.
  • Major financial institution defends conduct in government investigation of alleged manipulation of derivatives benchmarkJones Day represents a major financial institution in connection with an ongoing U.S. Commodity Futures Trading Commission investigation into the alleged manipulation of a common derivatives benchmark.
  • Reynolds American acquires Lorillard for $27.4 billionJones Day advised Reynolds American Inc. (NYSE: RAI) in its acquisition of Lorillard, Inc. for $27.4 billion and in the related $7.1 billion divestiture to an affiliate of Imperial Tobacco Group and $4.7 billion investment by British American Tobacco, RAI's largest shareholder.
  • Reynolds American defends against eleven shareholder lawsuits in Delaware Chancery CourtJones Day is representing Reynolds American Inc. ("RAI") in eleven shareholder lawsuits in Delaware Chancery Court arising out of RAI's acquisition of Lorillard Inc.
  • Reynolds American defends against shareholder lawsuit in North Carolina state courtJones Day is representing Reynolds American Inc. ("RAI") and its board of directors in a shareholder lawsuit in North Carolina state court arising out of RAI's acquisition of Lorillard.
  • Jones Day team helps clients successfully petition the U.S. Government to become lawful permanent residentsOver the course of three years, associates from Jones Day’s New York Office represented Ms. F and her minor son in their petitions to become lawful permanent residents after they fled the Dominican Republic from her abusive husband.
  • European bank consortium resolves litigation with project sponsor in connection with Spanish solar power plant financingJones Day successfully represented a consortium of thirteen European banks in litigation concerning the construction of two thermosolar power plants in Spain in a billion dollar dispute with the project's sponsor concerning the project financing.
  • Emergency order of protectionOn March 1, 2013, Michael Dailey, Amy Palumbo, and Colleen Noonan obtained a permanent order of protection for Ms. X to protect her against violence from her live-in boyfriend.
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