 NOVATO, Calif., Feb. 04, 2021 GLOBE NEWSWIRE -- Ultragenyx Pharmaceutical Inc. NASDAQ: RARE, a biopharmaceutical company focused on the development of novel products for serious rare and ultra-rare genetic diseases, today announced that it will host a conference call on Thursday, February 11, 2021 at 5pm ET to discuss its financial results and corporate update for the fourth quarter and the year ended December 31, 2020. 