Current Role
  • Partner, Hagens Berman Sobol Shapiro LLP
  • Lead partner for associate training and development at Hagens Berman
  • Practice focuses on securities and antitrust matters, as well as nationwide consumer protection cases involving large corporations
  • Extensive experience working with expert witnesses, often in economic and other highly technical areas
Experience
  • Served as First Chair in a federal class action jury trial through to verdict
  • Previously appeared before the Eleventh Circuit Court of Appeals
  • Articling Student at “Seven Sister” Law Firm, Toronto, Canada
  • Associate at Am Law Top Ten firm, New York, New York
Recognition
  • The Best Lawyers in America, Consumer Protection Law, Best Lawyers, 2024-2025
  • The Best Lawyers in America, Plaintiffs Mass Tort Litigation/Class Actions, Best Lawyers, 2024-2025
  • Rising Star, Washington Super Lawyers, 2016-2023
  • National Trial Lawyers Top 40 Under 40 in Washington State, Civil Plaintiff, 2022
Notable Cases
Publications
  • Co-author, the American Bar Association’s “A Practitioner’s Guide to Class Action — Vermont Chapter”, 2021
  • Co-author, the American Bar Association’s “A Practitioner’s Guide to Class Actions — Vermont Chapter," 2017
  • “Designing a New Playbook for the New Paradigm: Global Securities Litigation and Regulation,” Harvard Law School Forum on Corporate Governance and Financial Regulation, 2011
  • “Legal Vulnerability of Bioethicists in Canada: Is a New Era Upon Us?” 30 Health Law in Canada 132, 2010
  • Catherine Y.N. Gannon and Stephanie Ben-Ishai, “The Threat of the Oppression Remedy to Reorganizing Insolvent Corporations,” Annual Review of Insolvency Law 429, 2009
Personal Insight

Ms. Gannon is fluent in French and active within the pro bono community, having recently served as Board President of the Eastside Legal Assistance Program. Outside of work, Ms. Gannon enjoys hiking with her family and honing her nascent hockey skills on the ice.