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Osisko Development Corp.'s SEC filings document its Form 6-K reporting as a foreign issuer that files on Form 40-F, including press-release exhibits and notices for annual and special meetings of common shareholders. The records cover the company's North American gold-development business, led by the Cariboo Gold Project in British Columbia and complemented by the Tintic Project in Utah.
Recent filings disclose operating and financial results, Cariboo construction and pre-construction activity, Lowhee Zone drilling, Tintic small-scale mining activity, completed financings, warrant exercises, equity incentive awards and governance appointments. Meeting notices also identify common shares as the voting security class and record notice-and-access and beneficial-owner delivery arrangements.
Osisko Development Corp. reports completion of a 13,000‑meter underground infill drilling program at the Lowhee Zone of its 100%-owned, permitted Cariboo Gold Project in British Columbia, along with additional near-mine exploration drilling.
The company drilled 13,684 m on 10 m spacing, including 2,659 m of final infill and 2,995 m of extra infill and near-mine holes. Highlight intercepts include 44.68 g/t gold over 1.5 m, including 133.62 g/t over 0.5 m, and 31.64 g/t over 2.0 m, including 125.24 g/t over 0.5 m. Results will feed into an updated localized block model and mineral resource calculation. Lowhee currently hosts probable mineral reserves of 104,491 ounces of gold (923,162 tonnes grading 3.52 g/t), about 5% of Cariboo’s total probable reserves of 2.071 million ounces.
Osisko Development Corp. is preparing for its June 23, 2026 annual and special shareholder meeting, where investors will vote on key corporate matters. The company has nominated veteran mining finance executive Keith McKay to join the Board of Directors, as non-executive director Duncan Middlemiss will not stand for re-election.
Shareholders will also be asked to approve a proposed name change to "Osisko Gold Group Inc.", which management says better reflects its focus on gold and precious metals assets in North America, centered on the fully permitted, 100%-owned Cariboo Gold Project in British Columbia and the Tintic Project in Utah.
Osisko Development Corp. completed offerings of an aggregate US$300.0 million principal amount of 4.125% convertible senior notes due June 15, 2031, including a US$225.0 million base offering, a US$25.0 million option exercise and a US$50.0 million concurrent private placement with Double Zero Capital, LP.
The notes are senior unsecured, pay 4.125% interest semi-annually, and are initially convertible at 272.1088 common shares per US$1,000 principal amount, implying a conversion price of about US$3.68 per share, a 25.0% premium to the US$2.94 NYSE price on May 20, 2026. The company estimates net proceeds of approximately US$290.0 million and plans to use them to fund about US$40.2 million of capped call transactions, advance the Cariboo Gold Project and for general corporate purposes.
Osisko Development Corp. closed an additional US$75 million of 4.125% convertible senior notes due 2031, bringing its total recent convertible note financing to US$300 million. The company expects net proceeds of about US$290 million, before the cost of capped call transactions, to advance its Cariboo Gold Project and for general corporate purposes.
Osisko spent approximately US$40.2 million on cash-settled capped call transactions designed to offset potential economic dilution, effectively lifting the conversion premium from 25% to 100%. The notes carry a 4.125% coupon, are unsecured and covenant-light, and can be settled in cash, shares, or a mix at the company’s election, with an option to redeem after three years under specified conditions.
Major shareholder Double Zero Capital invested US$50 million in a concurrent private placement, and now holds common shares, warrants and notes representing about 23.89% of the company on a partially diluted basis, subject to a 19.9% ownership blocker unless certain approvals are obtained.
Double Zero Capital and related parties filed an amended Schedule 13D on Osisko Development Corp., reporting beneficial ownership of 63,632,697 common shares, or 19.9% of the class. This includes 48,591,775 shares held directly and 15,040,922 shares issuable under warrants, all limited by a 19.9% Beneficial Ownership Blocker.
The amendment also discloses that Double Zero agreed to purchase $50,000,000 principal amount of 4.125% convertible senior notes due 2031 in a private placement, for an aggregate price of $50,017,187.50 funded from its working capital. The notes pay 4.125% interest semi-annually from December 15, 2026, mature on June 15, 2031, and are initially convertible at 272.1088 shares per $1,000, subject to the same 19.9% ownership cap.
Osisko Development Corp. plans to settle the fourth of five deferred payments tied to its 2022 acquisition of a 100% interest in the Tintic Project in Utah using shares instead of cash. The Fourth Deferred Payment totals US$2,500,000 (C$3,453,000) and is expected to be fully paid in common shares.
The company intends to issue 871,683 common shares at a deemed price of approximately C$3.9613 per share, based on the 20-day volume-weighted average price as of May 26, 2026. This share issuance is subject to approval from the TSX Venture Exchange.
Osisko Development Corp. completed a private offering of US$225.0 million aggregate principal amount of 4.125% convertible senior notes due 2031 to qualified institutional buyers under Rule 144A. The company expects net proceeds of about US$215.9 million, before capped call costs.
Proceeds are intended to fund capped call transactions, advance the 100%-owned Cariboo Gold Project, and for general corporate purposes. The notes initially convert at 272.1088 common shares per US$1,000, implying a conversion price of roughly US$3.68, a 25.0% premium to the US$2.94 NYSE price on May 20, 2026. Certain initial purchasers also receive broker warrants for 1,279,536 common shares.
Osisko Development Corp. is raising capital through a US$275.0 million offering of 4.125% convertible senior notes due 2031, sold via a Rule 144A private placement and a concurrent private placement, including US$50.0 million purchased by affiliate Double Zero Capital, LP.
The notes are initially convertible at 272.1088 common shares per US$1,000 principal amount, implying a conversion price of about US$3.68 per share, a 25.0% premium to the US$2.94 NYSE share price on May 20, 2026. The company expects net proceeds of approximately US$215.9 million from the main offering and US$50.0 million from the private placement, to be used for capped call costs, development of the Cariboo Gold Project, and general corporate purposes.
Osisko Development Corp. plans an annual and special shareholder meeting on June 23, 2026 at 1:30 p.m. Eastern in Toronto. Holders of common shares at the May 11, 2026 record date can vote, with proxies due by June 19, 2026.
Shareholders will be asked to elect seven directors, reappoint PricewaterhouseCoopers LLP as auditor for the year ending December 31, 2026, approve moving the registered office from Québec to Ontario, and approve a corporate name change to “Osisko Gold Group Inc.” Both the board and all committees are dominated by independent directors, and the company highlights extensive governance, ethics, whistleblower, harassment and diversity policies.
Electronic “notice and access” is used for meeting materials, and the circular discloses that 304,721,378 common shares are outstanding, with Double Zero Capital LP and OR Royalties Inc. each holding more than 10%. The board targets 30% female representation and reports approximately 29% women among its nominees.
Osisko Development Corp. has appointed Mr. Greg Perrins as Vice President, Sustainable Development, effective May 18, 2026. He brings over 15 years of Indigenous relations and natural resource sector experience in British Columbia, including senior roles at BC Hydro and with several provincial ministries.
The company describes itself as a North American gold development business focused on past-producing mining camps. Its main objective is to advance its fully permitted, 100%-owned Cariboo Gold Project in central British Columbia, supported by additional potential from the Tintic Project in Utah.