Osisko Development Completes US$143.8 Million "Bought Deal" Public Offering of Common Shares Including Full Exercise of Over-Allotment Option

MONTREAL, Feb. 03, 2026 (GLOBE NEWSWIRE) -- Osisko Development Corp. (NYSE: ODV, TSXV: ODV) ("Osisko Development" or the "Company") is pleased to announce that it has completed its previously announced prospectus offering (the "Offering") of common shares of the Company (the "Common Shares"). The Offering was completed on a "bought deal" basis, pursuant to an underwriting agreement dated January 27, 2026, among the Company and a syndicate of underwriters comprising National Bank Capital Markets, RBC Capital Markets and Cantor, as co-lead underwriters and co-bookrunners, and BMO Capital Markets (collectively, the "Underwriters"). Pursuant to the Offering, the Company issued an aggregate of 40,607,650 Common Shares at a price of US$3.54 per Common Share for aggregate gross proceeds of US$143,751,081, including the exercise in full by the Underwriters of their over-allotment option.