Ultragenyx Reports Inducement Grant Under Nasdaq Listing Rule 5635(c)(4)

NOVATO, Calif., Aug. 25, 2026 -- Ultragenyx Pharmaceutical Inc. (NASDAQ: RARE), a biopharmaceutical company focused on the development and commercialization of novel therapies for rare and ultra-rare diseases, today reported the grant of 45,984 restricted stock units of the company’s common stock to 23 newly hired non-executive officers of the company. The awards were approved by the compensation committee of the company’s board of directors and granted under the Ultragenyx Employment Inducement Plan, with a grant date of August 16, 2026, as an inducement material to the new employees entering into employment with Ultragenyx in accordance with Nasdaq Listing Rule 5635(c)(4).