Glenn has focused his 40-year legal career on the energy industry, serving as lead counsel in litigation, counseling, legislative, and regulatory matters at both the state and federal levels. Drawing on his experience as both a lawyer and senior business executive, he approaches legal strategy and business objectives as closely intertwined. Glenn works with executive management and teams across finance, operations, rates, regulatory affairs, and communications to address complex legal, regulatory, and business challenges through creative solutions and consensus-building. When litigation is required, he handles matters efficiently, strategically, and aggressively.

In July 2026, Glenn retired as Senior Vice President and General Counsel of Commonwealth Edison Company (ComEd), the country’s fourth-largest electric utility, where he led the company’s legal, claims, and damage prevention departments and served on its Senior Leadership Committee. Concurrently, Glenn served as Senior Vice President and Deputy General Counsel of ComEd’s parent company, Exelon, where his responsibilities included federal energy regulation, corporate and commercial transactions, and legal support for multi-state regulatory matters, infrastructure, and development across Exelon’s six operating utilities.

Prior to joining ComEd, Glenn was an energy partner at several law firms, including a boutique he co-founded and Jenner & Block. He has worked with utilities in jurisdictions ranging from California to Puerto Rico and before the Federal Energy Regulatory Commission. Throughout his career, Glenn has led teams handling government investigations, financings—including securitized financings—rate cases, prudence disputes, and audits, while advising on complex issues involving business strategy, finance, operations, and regulation.

Glenn is a 1985 graduate of Yale Law School and earned undergraduate and graduate degrees in mathematics and economics from Northwestern University. Outside of work, he lives with two Thai cats and is an avid photographer, cook, and student of history.