Moderna, Inc. announced that John Mendlein, Ph.D., President of Corporate and Product Strategy, will be leaving the company effective February 1, 2019 to join Flagship Pioneering as an Executive Partner. He will be a strategic consultant to Moderna for six months to ensure a smooth transition. Dr. Mendlein joined Moderna's Board of Directors in 2012 soon after its founding. He joined the Company's Executive Committee in January 2018.