Viridian Therapeutics, Inc. announced Also on October 30, 2023, the appointment of Thomas Beetham as the Company?s Chief Operating Officer, effective immediately. Mr. Beetham, age 54, served as Chief Legal Officer and Secretary of Magenta Therapeutics, Inc. (now Dianthus Therapeutics, Inc. (Nasdaq: DNTH)), a biotechnology company, from June 2021 to September 2023, where he was a member of the Magenta?s executive team and responsible for overseeing the legal and compliance functions. Mr. Beetham has more than 20 years of experience in operations, strategy, business development and legal across the biopharmaceutical industry.

Prior to joining Magenta, Mr. Beetham served as Executive Vice President, Corporate Development and Operations, Chief Legal Officer and Secretary of Kiniksa Pharmaceuticals Ltd., a biopharmaceutical company, from November 2019 to June 2021, during which time he oversaw several functions including strategy, business development, legal, technical operations, medical affairs, quality, compliance, human resources, among others. Previously, Mr. Beetham served as Kiniksa?s Executive Vice President, Corporate Development, Chief Legal Officer and Secretary from December 2015 to November 2019, and before that as Senior Vice President in the same roles from Kiniksa?s formation in July 2015 to December 2015. Prior to joining Kiniksa, Mr. Beetham held various roles at Synageva BioPharma Corp.

from October 2013 to June 2015, including serving as the Chief Legal Officer and Senior Vice President of Corporate Development. Prior to joining Synageva, Mr. Beetham served as General Legal Counsel of New England Biolabs, Inc. Prior to joining Biolabs, Mr. Beetham held various roles at Genzyme Corporation, including as the lead corporate attorney responsible for Genzyme?s hematology/oncology and multiple sclerosis products, and before that was a business and transactional attorney with the law firm of Palmer & Dodge, LLP. Mr. Beetham holds a J.D. from Boston College Law School, an M.B.A. from Boston College?s Carroll School of Management and a B.A. from the University of Rochester.