<link type="text/css" rel="stylesheet" href="https://www.globenewswire.com/styles/gnw_nitf.css" /> <p align="justify">NEW YORK and NEW ORLEANS, March 17, 2026 (GLOBE NEWSWIRE) -- <a href="https://ksfcounsel.com/" rel="nofollow" target="_blank" rel="nofollow">Kahn Swick & Foti</a>, LLC ("KSF") and KSF partner, former Attorney General of Louisiana, Charles C. Foti, Jr., notifies investors in <a href="https://www.ksfcounsel.com/cases/nasdaqgs-rare/" rel="nofollow" target="_blank" rel="nofollow">Ultragenyx Pharmaceutical</a> Inc. ("Ultragenyx" or the "Company") (NASDAQ:<a class="ticker" href="https://www.benzinga.com/quote/RARE" rel="nofollow">RARE</a>) of a class action securities lawsuit.</p> <p align="justify">CLASS DEFINITION: The lawsuit seeks to recover losses on behalf of investors of Ultragenyx who were adversely affected by alleged securities fraud between August 3, 2023 and December 26, 2025. Follow the link below to get more information and be contacted by a member of our team:</p> <p align="center"><a href="https://www.ksfcounsel.com/cases/nasdaqgs-rare/" rel="nofollow" target="_blank" rel="nofollow">https://www.ksfcounsel.com/cases/nasdaqgs-rare/</a></p> <p align="justify">Ultragenyx investors should contact KSF Managing Partner Lewis Kahn toll-free at 1-877-515-1850 or via email (<a href="mailto: [email protected] " rel="nofollow"> [email protected] </a>), or visit <a href="https://www.ksfcounsel.com/cases/nasdaqgs-rare/" rel="nofollow" target="_blank" rel="nofollow">https://www.ksfcounsel.com/cases/nasdaqgs-rare/</a> to learn more.</p> <p align="justify">CASE DETAILS: On December 26, 2025, the ...</p><p><a href=https://www.benzinga.com/pressreleases/26/03/g51316155/ultragenyx-pharmaceutical-inc-notice-of-april-6-2026-application-deadline-for-class-action-lawsuit?utm_source=benzinga_taxonomy&utm_medium=rss_feed_free&utm_content=taxonomy_rss&utm_campaign=channel alt=Ultragenyx Pharmaceutical Inc. Notice of April 6, 2026 Application Deadline for Class Action Lawsuit - Contact Lewis Kahn, Esq. at Kahn Swick & Foti, LLC, Before Application Deadline>Full story available on Benzinga.com</a></p>