• Osisko Development completed a corporate reorganization via a name change to Osisko Gold Group, effective July 14, 2026.
• Common shares are set to begin trading under the new name with ticker OGG on the TSXV and NYSE at the July 20 open.
• Listed warrants are scheduled to switch tickers on July 20, including OGGWZ on Nasdaq and OGG.WT.U on the TSXV.
• The company expects no trading disruption; share and warrant certificates remain valid with no required holder action.
• The rebrand aligns the group around a North American gold focus led by the fully permitted Cariboo Gold Project in British Columbia.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Osisko Development Corp. published the original content used to generate this news brief on July 15, 2026, and is solely responsible for the information contained therein.