Osisko Development Corp. is conducting a bought deal public offering of 35,311,000 common shares at US$3.54 per share, for gross proceeds of US$125,000,940 (approximately C$171,276,288). The underwriters’ cash commission is 4.5% of gross proceeds, or US$5,625,042.30 (about C$7,707,433), resulting in net proceeds of US$119,375,897.70 (about C$163,568,855) before estimated expenses of US$750,000 (about C$1,027,650). The underwriters - National Bank Financial Inc., RBC Dominion Securities Inc. and Cantor Fitzgerald Canada Corporation as co-lead underwriters and co-bookrunners, together with BMO Nesbitt Burns Inc. - also hold an over-allotment option to purchase up to an additional 5,296,650 shares for up to US$18,750,141 in extra gross proceeds (approximately C$25,691,443). If exercised in full, total gross proceeds would be US$143,751,081 (about C$196,967,731), with total commissions of US$6,468,798.65 (about C$8,863,548) and net proceeds of US$137,282,282.35 (about C$188,104,183), in each case before expenses.

Canadian legal matters are being handled for Osisko Development by Bennett Jones LLP and for the underwriters by Cassels Brock & Blackwell LLP, while Troutman Pepper Locke LLP and Paul, Weiss, Rifkind, Wharton & Garrison LLP act as U.S. counsel to the company and the underwriters, respectively.