Osisko Development Announces Closing of US$225.0 Million Aggregate Principal Amount of 4.125% Convertible Senior Notes Offering

Osisko Development Corp. closed a US$225.0 million offering of 4.125% convertible senior notes due 2031, with net proceeds of approximately US$215.9 million expected to fund the development of the Cariboo Gold Project and general corporate purposes. The notes have an initial conversion price of US$3.68 per share (25% premium over the May 20 stock price of US$2.94), and the company also received an additional US$50.0 million in notes from affiliate Double Zero Capital, LP.

05/26/2026, 5:00 PM • GlobeNewswire

Osisko Development Appoints Vice President, Construction Contracting and Commercial

Osisko Development Corp. announced the appointment of Sarah MacDonald as Vice President of Construction Contracting and Commercial, effective immediately. MacDonald brings over 18 years of experience in legal and commercial affairs, previously serving as General Counsel at Dumas Contracting Ltd. Her appointment is intended to strengthen the company's execution capabilities as it advances the Cariboo Gold Project in British Columbia.

05/04/2026, 5:00 PM • GlobeNewswire

Funded Builders Are Pulling Away From the Gold Mining Pack

Institutional capital is increasingly flowing toward funded gold mining developers as global mine output approaches a plateau. Lake Victoria Gold, G Mining Ventures, i-80 Gold, Osisko Development, and Troilus Mining are leading the pack with secured funding and advancing construction projects. Lake Victoria Gold secured a $25 million gold loan facility and $3 million convertible debenture, while G Mining Ventures' Tocantinzinho mine generated $255 million in free cash flow in 2025.

04/17/2026, 9:30 AM • Benzinga

Osisko Development Announces Annual Grant of Incentive Awards

Osisko Development Corp. announced the grant of 1,104,400 stock options and 1,426,600 restricted share units to senior officers and non-executive employees as part of its annual compensation review. The options are exercisable at C$4.51 per share and expire in 2031, vesting over three years, while RSUs will cliff vest in 2029 subject to time and performance conditions.

04/01/2026, 8:43 PM • GlobeNewswire

Osisko Development Appoints Vice President, Permitting and Compliance

Osisko Development Corp. announced the appointment of Sarah Harrison as Vice President, Permitting and Compliance, effective February 2, 2026. Harrison brings over 13 years of experience in environmental assessment, permitting, and regulatory compliance in the mining sector, with expertise spanning the full mine development lifecycle in western Canada.

02/02/2026, 5:00 PM • GlobeNewswire

Osisko Development Completes Sale of San Antonio Gold Project

Osisko Development Corp. has completed the sale of its 100% interest in the San Antonio Gold Project in Mexico to Axo Copper Corp., receiving 15.3 million Axo shares (9.99% stake) plus contingent deferred payments including up to US$4 million in cash and additional shares tied to feasibility study completion, gold pour, and future equity financings.

01/27/2026, 8:30 PM • GlobeNewswire

Osisko Développement annonce un placement public par prise ferme de 125 millions de dollars américains d’actions ordinaires afin de faire progresser la conversion des ressources minérales en réserves en vue de l’intégration au plan minier du projet aurifère Cariboo

Osisko Development Corp. announced a US$125 million bought deal public offering of 35.3 million common shares at US$3.54 per share to finance drilling and exploration work at its Cariboo Gold Project in British Columbia. The offering includes an over-allotment option for an additional US$18.75 million. Proceeds will be used for mineral resource-to-reserve conversion and general working capital needs.

01/26/2026, 9:01 PM • GlobeNewswire

Osisko Development Announces US$125 Million Bought Deal Public Offering of Common Shares to Advance Mineral Resource-to-Reserve Conversion Toward Mine Plan Integration at the Cariboo Gold Project

Osisko Development Corp. announced a US$125 million bought deal public offering of 35.3 million common shares at US$3.54 per share, with an additional over-allotment option for up to 5.3 million shares. The net proceeds will fund infill conversion drilling, at-depth exploration at the Cariboo Gold Project, and general working capital. The offering is expected to close on January 30, 2026, subject to regulatory approvals from the TSX Venture Exchange and New York Stock Exchange.

01/26/2026, 6:16 PM • GlobeNewswire

Osisko Development Announces US$125 Million Bought Deal Public Offering of Common Shares to Advance Mineral Resource-to-Reserve Conversion Toward Mine Plan Integration at the Cariboo Gold Project

Osisko Development Corp. announced a US$125 million bought deal public offering of 35.3 million common shares at US$3.54 per share, with an additional over-allotment option for up to 5.3 million shares. The company plans to use net proceeds for infill conversion drilling, at-depth exploration at the Cariboo Gold Project, and general working capital. The offering is expected to close on or about January 30, 2026, subject to regulatory approvals.

01/26/2026, 5:17 PM • GlobeNewswire

Osisko Development Reports Contractor Fatality at the Cariboo Gold Project

Osisko Development Corp. reported a fatal injury to a contractor at its Cariboo Gold Project in British Columbia on January 22, 2026. The company has suspended activities at the project pending an investigation. The incident marks a significant safety concern for the gold development company.

01/23/2026, 7:00 AM • GlobeNewswire

Osisko Development and Electric Elements File Early Warning Report for Niobay Metals Inc.

Osisko Development Corp. acquired 8,571,429 units of Niobay Metals Inc. for $1.2 million on December 18, 2025, increasing its ownership stake from 10.8% to 12.3% on a basic basis. The investment was made through its subsidiary Barkerville Gold Mines Ltd. as part of Niobay's private placement offering.

12/23/2025, 6:57 PM • GlobeNewswire

Brunswick Exploration Drills 47.2 Meters at 1.66% Li2O Within 120.7 Meters at 1.31% Li2O

Brunswick Exploration reported promising lithium exploration results from its Anatacau Main Project in Quebec, with drill holes revealing multiple spodumene-bearing pegmatites and high lithium mineralization across a 170-meter strike length.

11/17/2025, 5:00 AM • GlobeNewswire

Osisko Development Files Early Warning Report Regarding Falco Resources Ltd.

Osisko Development acquired 6,250,000 units of Falco Resources at C$0.32 per unit, increasing its ownership to approximately 15.9% of outstanding shares through a private placement transaction.

10/27/2025, 8:00 AM • Benzinga

Osisko Development Announces Upsizing of Previously Announced "Bought Deal" LIFE Offering; Additional Concurrent Private Placement

Osisko Development increased its previously announced financing offering from C$30 million to C$60 million, consisting of flow-through shares and common shares, to fund construction of the Cariboo Gold Project.

10/09/2025, 3:59 PM • GlobeNewswire

Osisko Développement annonce un placement par voie de prise ferme au titre de la Dispense pour financement de l’émetteur coté de 30 millions de dollars canadiens d’actions accréditives nationales et d’actions accréditives de la Colombie-Britannique

Osisko Développement has agreed with financial institutions to conduct a C$30 million private placement of national and British Columbia flow-through shares, with proceeds to be used for mining exploration expenses in Canada.

10/08/2025, 6:43 PM • GlobeNewswire