Katherine Brennan, most recently General Counsel at Marsh LLC, takes on the role of Senior Vice President and General Counsel at Marsh McLennan, succeeding Peter Beshar, effective immediately.
Brennan takes charge of the broker’s global legal, compliance, and public affairs function, which supports Marsh, Guy Carpenter, Mercer, and Oliver Wyman.
She will continue to lead the company’s ESG efforts, and will report to Dan Glaser, President and Chief Executive Officer (CEO) of Marsh McLennan, and will join the firm’s Executive Committee.
During her time with Marsh McLennan, Brennan has held numerous legal and compliance leadership roles, including her most recent position as General Counsel, Marsh LLC. Previously, she served as Deputy Corporate Secretary and Chief Compliance Officer for Marsh McLennan from 2017 to 2021.
Earlier in her career, she worked as the General Counsel of Guy Carpenter, Marsh McLennan’s reinsurance broking arm.
Beshar has served as the broker’s Executive Vice President and General Counsel since 2014. In 2021, it was revealed that he had been nominated by President Biden to serve as the General Counsel of the U.S. Department of the Air Force, with the U.S. Senate unanimously confirming this nomination last week.
“Kate is a remarkable leader and lawyer, who has grown throughout her career here. Her experience leading a range of complex legal, compliance and regulatory matters on behalf of the Company makes her the ideal candidate for this role,” said Glaser. “We’re fortunate to have a colleague with her knowledge, integrity and commitment poised to take on this critical position.”
Commenting on Beshar’s departure, Glaser added: “On behalf of our 83,000 colleagues, I want to express my gratitude to Peter for his leadership and devotion to the company throughout nearly 20 years.
“Peter has embodied our commitment to advancing good and tirelessly promoted the Company’s reputation, helping us grow and thrive. He has also been a champion of ethics, strong and effective governance practices, and environmental and social causes. He leaves an amazing legacy at the Company. We wish him continued success as he serves the United States at a critical moment.”
