NOVATO, Calif., Sept. 30, 2025 (GLOBE NEWSWIRE) -- Ultragenyx Pharmaceutical Inc. (NASDAQ: RARE) today announced the appointment of Eric Olson as chief business officer (CBO) and executive vice president effective September 22, 2025, following the planned retirement of Thomas Kassberg. Mr. Olson will be responsible for leading the company’s business development, corporate development and alliance management functions. “We thank Tom for his 14 years of impactful contributions to Ultragenyx, including transf ...