As former Chair of the NAAG Multistate Antitrust Task Force and as Wisconsin's Assistant Attorney General for Antitrust from 2005-2024, Gwendolyn has extensive experience litigating antitrust cases on behalf of the State of Wisconsin- including merger enforcement, cartel prosecutions. She was the lead attorney in State of Wisconsin v. Indivior, where she led 42 Attorneys General in their successful case against the manufacturer of Suboxone, resulting in a $102.5 million settlement. Gwendolyn was also on the trial team for the States' challenge to the T-Mobile/Sprint merger.
Gwendolyn was co-chair of the Pharmaceutical Industry Working Group in the National Association of Attorneys General Antitrust Task Force, and was a delegate to the “Future of Pharma Mergers” international initiative spearheaded by the FTC, and lead the Reimagining Pharma Attorney Generals Advisory Group.
