RARE Investors Have Opportunity to Lead Ultragenyx Pharmaceutical Inc. Securities Fraud Lawsuit with the Schall Law Firm

LOS ANGELES, April 02, 2026 (GLOBE NEWSWIRE) -- The Schall Law Firm , a national shareholder rights litigation firm, reminds investors of a class action lawsuit against Ultragenyx Pharmaceutical Inc. (“Ultragenyx” or “the Company”) (NASDAQ: RARE) for violations of §§10(b) and 20(a) of the Securities Exchange Act of 1934 and Rule 10b-5 promulgated thereunder by the U.S. Securities and Exchange Commission. Investors who purchased the Company's securities between August 3, 2023 and December 26, 2025, inclusive (the “Class Period”), are encouraged to contact the firm before April 6, 2026.