Osisko Gold names Elijah Tyshynski as new CFO

Osisko Gold Group Inc. (OGG) announced a planned CFO leadership transition.

Rhea-AI Filing Summary

Osisko Gold Group Inc. (OGG) announced a planned CFO leadership transition. Alexander Dann intends to retire and will step down as Chief Financial Officer and Vice President, Finance after a 35-year career, remaining for a transition period to support an orderly handover. As part of a succession process, Elijah Tyshynski will be appointed CFO and join the senior leadership team following this transition. The company highlights entering its next stage of growth from a position of financial strength and emphasizes Mr. Tyshynski’s extensive capital markets and infrastructure financing experience. Osisko Gold reiterates its objective of becoming an intermediate gold producer through development of its 100%-owned, fully permitted Cariboo Gold Project in British Columbia, complemented by the Tintic Project in Utah.

Key Figures

CFO career length: 35 years Ownership of Cariboo Gold Project: 100%-owned Year Tyshynski became CFO of ATEX Resources: 2025 +2 more

5 metrics

CFO career length 35 years Length of Alexander Dann’s career before retirement

Ownership of Cariboo Gold Project 100%-owned Osisko Gold’s interest in the Cariboo Gold Project

Year Tyshynski became CFO of ATEX Resources 2025 Start of Elijah Tyshynski’s role as CFO and Corporate Secretary at ATEX Resources Inc.

Phone number – CEO contact +1 (514) 940-0685 Contact number provided for Sean Roosen, Chairman and CEO

Phone number – Investor Relations contact +1 (437) 423-3644 Contact number provided for Vice President, Investor Relations

Key Terms

intermediate gold producer, district-scale potential, brownfield property, forward-looking statements, +1 more

5 terms

intermediate gold producer financial

"objective is to become an intermediate gold producer through the development"

district-scale potential technical

"focused on past producing mining camps with district-scale potential"

brownfield property technical

"Tintic Project, located in the historic East Tintic mining district in Utah, U.S.A., a brownfield property"

forward-looking statements regulatory

"This news release contains "forward-looking information" ... and "forward-looking statements""

Forward-looking statements are predictions or plans that companies share about what they expect to happen in the future, like estimating sales or profits. They matter because they help investors understand a company's outlook, but since they are based on guesses and assumptions, they can sometimes be wrong.

leadership succession financial

"As part of the Company's planned leadership succession process, Elijah Tyshynski"

FAQ

What executive leadership change did Osisko Gold Group Inc. (OGG) announce?

Osisko Gold Group Inc. announced that Alexander Dann plans to retire and will step down as Chief Financial Officer and Vice President, Finance. He will remain for a transition period while Elijah Tyshynski is appointed CFO and joins the company’s senior leadership team.

Who is replacing the retiring CFO at Osisko Gold Group Inc. (OGG)?

Elijah Tyshynski will be appointed Chief Financial Officer of Osisko Gold Group Inc. following a transition period. He brings experience as CFO and Corporate Secretary of ATEX Resources Inc. and O3 Mining, and prior roles in strategic development and capital markets within the Osisko group.

How long has the retiring CFO of OGG worked in his career?

Retiring CFO Alexander Dann is stepping down after a 35-year career. He served as CFO and Vice President, Finance of Osisko Gold Group Inc. for approximately five years and will remain during a transition period to ensure an orderly handover of responsibilities.

What is Osisko Gold Group Inc.’s main development objective?

Osisko Gold Group Inc.’s objective is to become an intermediate gold producer through development of its 100%-owned, fully permitted Cariboo Gold Project in central British Columbia, Canada, within a broader regional land package hosting numerous exploration targets.

What key projects support OGG’s growth strategy?

Osisko Gold Group Inc.’s growth strategy is anchored by the Cariboo Gold Project in British Columbia, which is fully permitted and 100%-owned, and complemented by the Tintic Project in the historic East Tintic mining district in Utah, described as a brownfield property with significant exploration potential.

How does OGG describe its financial position entering this leadership transition?

Chairman and CEO Sean Roosen states that Osisko Gold enters its next phase of growth from a position of financial strength and that the incoming CFO inherits a robust balance sheet, supporting the company’s focus on financial discipline and execution of its growth strategy.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/25/2026 - 05:15 PM Accepted by SEC EDGAR 08/25/2026 - 05:15 PM Learn about SEC filing dates

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

Form 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of August 2026

Commission File Number: 001-41369

Osisko Gold Group Inc.
(Translation of registrant's name into English)

155 University Avenue, Suite 1450, Toronto, Ontario M5H 3B7
(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.
Form 20-F [   ]      Form 40-F [ X ]

EXHIBIT INDEX

Exhibit Number		Description
99.1		Press Release dated August 25, 2026

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

		Osisko Gold Group Inc.
		(Registrant)
Date: August 25, 2026		/s/ Alexander Dann
		Alexander Dann
		Chief Financial Officer and VP Finance

EXHIBIT 99.1

Osisko Gold Announces CFO Transition to Support Its Next Stage of Growth

TORONTO, Aug. 25, 2026 (GLOBE NEWSWIRE) -- Osisko Gold Group Inc. (NYSE: OGG, TSXV: OGG) ("Osisko Gold" or the "Company") announces that Alexander Dann has advised the Company of his intention to retire and will be stepping down from his role as Chief Financial Officer ("CFO") and Vice President, Finance, capping a distinguished 35-year career. Mr. Dann will remain with the Company for a transition period to support an orderly handover of responsibilities. As part of the Company's planned leadership succession process, Elijah Tyshynski will be appointed CFO and will join the senior leadership team following a period of transition, bringing extensive financial and capital markets experience as the Company enters its next stage of growth.

Sean Roosen, Chairman and CEO, commented: "We thank Alex for his significant contributions and leadership over the past five years. He was instrumental in guiding the Company through an important period and ensuring it enters its next phase of growth from a position of financial strength. On behalf of the Board of Directors and our entire team, I extend our sincere appreciation to Alex for his exemplary service and wish him all the best in his well-earned retirement. Elijah joins the Company at a pivotal time and inherits a robust balance sheet. We believe his experience and capabilities will help maintain the financial discipline required to execute our growth strategy and deliver long-term value for all shareholders."

Reflecting on his tenure, Mr. Dann commented: "Serving as CFO of Osisko Gold has been a privilege, and I am grateful to have worked alongside such a talented team. The Company is well-positioned for continued success, and I am confident the team will carry that momentum forward."

Elijah Tyshynski Biography

Mr. Tyshynski joins Osisko Gold from ATEX Resources Inc. where he served as Chief Financial Officer and Corporate Secretary from 2025 following the sale of O3 Mining to Agnico Eagle Mines ("Agnico"). During his time with O3 Mining, he acted as Chief Financial Officer and Corporate Secretary and oversaw financial and regulatory reporting, financings, implementation of internal policies and processes, and the eventual transaction with Agnico. Prior to, and during his time with O3 Mining, Mr. Tyshynski worked with Osisko Mining as the Director of Strategic Development, along with providing capital markets and strategic advice to other companies within the Osisko Group. Mr. Tyshynski background includes extensive infrastructure financing and structuring experience across developed and emerging markets, including at the sovereign and supranational levels, having held the position of Senior Portfolio Manager at Ontario Teachers Pension Plan, Head of Trading for the Standard Bank of South Africa in Johannesburg, and Vice President of Emerging Market Trading for both Morgan Stanley and Royal Bank of Canada in London, England.

ABOUT OSISKO GOLD GROUP INC. Osisko Gold Group Inc. 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 within the Company's broader Cariboo regional land package in central British Columbia, Canada, which hosts numerous prospective exploration targets and provides opportunities for future discoveries. Its Cariboo 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 significant exploration potential, extensive historical mining data, and access to established infrastructure. Osisko Gold 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, visit our website at www.osiskogold.ca or contact:
Sean Roosen	Philip Rabenok
Chairman and CEO	Vice President, Investor Relations
Email: sroosen@osiskogold.ca	Email: prabenok@osiskogold.ca
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) (collectively, "forward-looking statements"). Such forward-looking statements relate to, among other things: the anticipated retirement of Mr. Dann and his continued service during the transition period; the timing and completion of the planned leadership transition; the appointment of Mr. Tyshynski as CFO and his joining the Company’s senior leadership team; the anticipated benefits of the leadership transition and Mr. Tyshynski’s experience and capabilities; and the Company’s ability to maintain financial discipline, execute its growth strategy and deliver long-term value for shareholders; the Company’s objective of becoming an intermediate gold producer; and the exploration potential and prospectivity of its properties. 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 leadership transition proceeding on the anticipated terms and timeline; Mr. Dann remaining available to support an orderly handover of responsibilities; Mr. Tyshynski joining the Company and assuming the role of CFO as contemplated; the continuity and effective operation of the Company’s finance function throughout the transition; the Company continuing to have access to sufficient financial, managerial and other resources to execute its growth strategy; the absence of material adverse changes affecting the Company’s business, financial position or operations as a result of the leadership transition; the ability to develop the Cariboo Gold Project and its status as being fully permitted; the Company’s objective of becoming an intermediate gold producer; and the exploration potential and potential for future discoveries (if any) of its properties. 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: the absence of any work stoppages or suspensions at the Company's projects; 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 number of factors, including, without limitation: delays or changes in the anticipated timing or implementation of the leadership transition; the inability to complete an orderly and effective handover of responsibilities; disruption to the Company’s finance function, financial reporting, internal controls, treasury or financing activities; challenges associated with leadership succession and the integration of a new CFO; the Company’s inability to maintain financial discipline or execute its growth strategy as contemplated; adverse changes in the Company’s business, financial position, operating environment or access to capital; risks related to the exploration, development and operation of the Cariboo Gold Project; changes in estimated project costs, development timeline, or construction schedule; health, safety and security incidents; regulatory delays or changes in regulatory framework and applicable laws; labour shortages or disputes; general economic and market conditions and business conditions in the mining industry; fluctuations in commodity and currency exchange rates; 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.

Filing Exhibits & Attachments

1 document

Press Releases

• EX-99.1 PRESS RELEASE 12.5 KB