Osisko Gold Completes Name Change from Osisko Development

TORONTO, July 15, 2026 (GLOBE NEWSWIRE) -- Osisko Gold Group Inc. (NYSE: ODV, TSXV: ODV) (" Osisko Gold " or the " Company ") is pleased to announce the completion of its previously announced name change to "Osisko Gold Group Inc." from "Osisko Development Corp." (and "Groupe Aurifère Osisko Inc." from "Osisko Développement Corp."), effective July 14, 2026 (the " Name Change "), following receipt of shareholder approval at its annual and special meeting of shareholders held on June 23, 2026, and receipt of other applicable regulatory approvals.