Osisko Development Announces Nomination of Keith Mckay to the Board of Directors and Proposes NAME Change to Osisko GOLD Group Inc. at Upcoming Annual and Special Meeting of Shareholders
ODV NYSE TSXV News Release
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OSISKO DEVELOPMENT ANNOUNCES NOMINATION OF KEITH MCKAY TO THE
BOARD OF DIRECTORS AND PROPOSES NAME CHANGE TO OSISKO GOLD GROUP
INC. AT UPCOMING ANNUAL AND SPECIAL MEETING OF SHAREHOLDERS
Montreal, Québec, June 2, 2026 – Osisko Development Corp. (NYSE: ODV, TSXV: ODV) ("Osisko
Development" or the " Company") announces its upcoming annual and special meeting (the
"Meeting") of holders of common shares of the Company (the " Shareholders"), to be held on June
23, 2026 at 1:30 p.m. (Eastern time) at First Canadian Place, 100 King St . W., Suite 3400, Toronto,
Ontario, M5X 1A4.
Director Nomination
As non-executive director Mr. Duncan Middlemiss will not be standing for re -election at the upcoming
Meeting, the Company has nominated Mr. Keith McKay for election to the Board of Directors. The
Company has also nominated the other incumbent directors for re-election at the Meeting.
"On behalf of the Board and management team, I would like to thank Duncan for his valuable
contributions and dedicated service," said Sean Roosen, Chairman and CEO . "We've greatly
benefited from his guidance and commitment during his tenure, and we wish him all the best in his
future endeavours."
Mr. McKay is a Chartered Professional Accountant with over 45 years of experience in finance and
executive leadership, primarily in the mining and natural resources sector. He has extensive expertise
in public company reporting, financing, mergers and acquisitions, risk management, and governance.
Mr. McKay currently serves as Chief Financial Officer of Dalradian Resources Inc., a position he has held
since June 2010. Mr. McKay has significant board experience, having served as a director and Audit
Committee Chair of several publicly listed mining companies, including Osisko Mining Inc., O3 Mining
Inc., and Noront Resources Ltd. Over the course of his career, he has held senior executive roles,
including Chief Financial Officer of Continental Gold Ltd., Andina Minerals Inc., and Aurelian Resources
Inc., as well as senior finance positions with AMEC Canada, Algoma Steel Inc., and Rio Algom Ltd. Mr.
McKay obtained his Chartered Accountant designation in 1981 with Coopers & Lybrand (now
PricewaterhouseCoopers LLP) and holds a Bachelor of Arts degree from Western University.
Proposed Name Change
At the upcoming Meeting, the Company is proposing that Shareholders consider a change of the
Company's name to "Osisko Gold Group Inc." to better reflect its evolution toward a primary gold and
precious metals-focused asset base in North America. Management believes the proposed name change
is timely as the Company enters a new chapter, underpinned by the continued de -risking and
advancement of its fully permitted Cariboo Gold Project.
Additional information regarding the Meeting, matters to be considered at the Meeting, and voting can
be found in the management information circular of Osisko Development dated May 11, 2026, filed with
securities regulators and available on the Company's website at www.osiskodev.com and on SEDAR+
(www.sedarplus.ca) under Osisko Development's issuer profile.
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ABOUT OSISKO DEVELOPMENT CORP.
Osisko Development Corp. is a continental North American gold development company focused on past
producing mining camps with district -scale potential. The Company's objective is to become an
intermediate gold producer through the development of its flagship, fully permitted, 100% -owned
Cariboo Gold Project, located in central British Columbia, Canada. Its project pipeline is complemented
by the Tintic Project , located in the historic East Tintic mining district in Utah, U.S.A., a brownfield
property with signifi cant exploration potential, extensive historical mining data, and access to
established infrastructure. Osisko Development is focused on developing long -life mining assets in
mining-friendly jurisdictions while maintaining a disciplined approach to capital allocation, development
risk management, and mineral inventory growth.
For further information, contact:
Sean Roosen Philip Rabenok
Chairman and CEO Vice President, Investor Relations
Email: [email protected] Email: [email protected]
Tel: +1 (514) 940-0685 Tel: +1 (437) 423-3644
CAUTION REGARDING FORWARD-LOOKING STATEMENTS
This news release contains "forward-looking information" (within the meaning of applicable Canadian securities laws) and "forward-
looking statements" (within the meaning of the U.S. Private Securities Litigation Reform Act of 1995, as amended) (collective ly,
"forward-looking statements"). Such forward -looking statements are identified with words such as "may", "will", "would", "could",
"anticipate", "believe", "expect", "plan", "intend", "potential", "estimate", "propose", "project", "outlook", "foresee" , "objective",
"strategy", variants of these words or the negative or comparable terminology, as well as terms usually used in the future and the
conditional. Information contained in forward -looking statements is based upon certain material assumptions that were applied in
drawing a conclusion or making a forecast or projection, including the assumptions, qualifications, limitations or st atements
pertaining to: the proposed timing of the Meeting; the proposed name change and anticipated benefits thereof; the Company's
objective to become an intermediate gold producer; the Company's evolution toward a primary gold and precious metals -focused
asset base in North America; the continued de -risking and advancement of the Cariboo Gold Project; the ability to develop the
Cariboo Gold Project and its status as being fully permitted ; the exploration potential and prospectivity (if any) of its proper ties.
Such forward-looking statements are based on a number of risks, uncertainties and assumptions which may cause actual results or
other expectations to differ materially from those anticipated and which may prove to be incorrect. These assumptions include , but
are not limited to: obtaining requisite shareholder approval at the Meeting; the absence of further work stoppages or suspensions
at the Project; favourable regulatory conditions and approvals; the ability to maintain adequate personnel and contractor levels; the
absence of unforeseen ground conditions or other geological challenges; the availability of necessary equipment, supplies and
infrastructure; and general economic and market conditions. Actual results could differ materially due to a numbe r of factors,
including, without limitation: receipt of requisite shareholder approval at the Meeting; risks related to the exploration, development
and operation of the Cariboo Gold Project; health, safety and security incidents; regulatory delays or chan ges in regulatory
framework and applicable laws; labour shortages or disputes; general eco nomic and market conditions and business conditions in
the mining industry; fluctuations in commodity and currency exchange rates; changes in regulatory framework and applicable laws,
as well as those risks and factors disclosed in the Company's most recent annual information form, financial statements and
management's discussion and analysis as well as other public filings on SEDAR+ (www.sedarplus.ca) and on EDGAR (www.sec.gov).
Although the Company believes the expectations conveyed by the forward-looking statements are reasonable based on information
available as of the date hereof, no assurances can be given as to future results, levels of activity and achievements. The Company
disclaims any obligation to update any forward-looking statements, whether as a result of new information, future events or results
or otherwise, except as required by law. Forward -looking statements are not guarantees of performance and there can be no
assurance that these forward-looking statements will prove to be accurate, as actual results and future events could differ materially
from those anticipated in such statements. Accordingly, readers should not place undue reliance on forward -looking statements.
Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the
TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this news release. No stock exchange,
securities commission or other regulatory authority has approved or disapproved the information contained herein.