Osisko Development Proposes Name Change to Osisko Gold Group, Secures Significant Financing

Osisko Development Corp. has announced a series of significant corporate and financial moves aimed at advancing its development projects. The company is proposing a name change to Osisko Gold Group Inc. at an upcoming shareholder meeting, signaling a strategic shift in its market identity within the gold sector.

A key component of the company's financing strategy has been the issuance of convertible notes. In May 2026, Osisko Development completed additional closings for its 4.125% convertible senior notes, bringing the total offering to US$300 million. These funds are earmarked for the continued development of its flagship Cariboo Gold Project.

The company has also finalized its commitment to the Tintic acquisition by completing a deferred payment installment. Furthermore, Osisko Development successfully closed a US$143.8 million "bought deal" public offering of common shares in February 2026, including the full exercise of the over-allotment option, reflecting investor confidence in its operational plans.

Operationally, the company has resumed planned site activities at the Cariboo Gold Project, including further infill drilling updates that have shown high-grade gold intercepts. Project and construction management services have been awarded to support the project's development. Osisko Development has also made key executive appointments, including Vice Presidents for Sustainable Development and Permitting and Compliance.