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Osisko Development Corp.

WATCH

TSXV · Gold · Scored Apr 18, 2026

Composite Score 18/25
Management Skin-in-the-Game
4/5
Sean Roosen (Chairman & CEO) is the founder of Osisko Mining Corporation, which discovered and developed the Canadian Malartic mine — Canada's largest open-pit gold mine — before selling to Agnico-Yamana in 2014 for ~C$3.9B. He then founded Osisko Gold Royalties (OR) in 2014 and served as Executive Chairman/CEO until 2023. He founded Osisko Development in 2020. This is a genuine discovery-to-exit track record at scale, with shareholder value creation demonstrated across multiple vehicles.

Insider ownership is the key weakness: the board collectively held only CA$1.5M worth of shares in their own names per a Simply Wall St analysis (circa mid-2025), representing under 1% of outstanding shares. Osisko Gold Royalties Ltd holds ~24% as the largest single shareholder; Condire Investors LLC holds ~10%; individual retail investors hold ~55%. Sean Roosen personally participated in the August 2025 private placement (488,000 shares at US$2.05) and bought CA$1.4M of shares in the open market at CA$2.83. Double Zero Capital LP (a Roosen-affiliated vehicle) exercised pre-emptive rights in the February 2026 bought deal, purchasing 8,080,000 shares at US$3.54 for US$28.6M.

The recent insider buying by Roosen and the continued participation of Double Zero Capital in equity financings signals alignment. However, the very low direct board-level ownership (sub-1%) prevents a score of 5. The Osisko Gold Royalties strategic stake (24%) provides an institutional anchor with aligned interests given the shared brand and history.
Project Geology Quality
4/5
The Cariboo Gold Project hosts Probable Mineral Reserves of 2.07M oz Au (17,815 kt at 3.62 g/t Au) underpinning the 2025 Feasibility Study. Exclusive of reserves, the project also contains Measured Resources of 8,000 oz (47 kt at 5.06 g/t), Indicated Resources of 1.60M oz (17,332 kt at 2.88 g/t), and Inferred Resources of 1.86M oz (18,774 kt at 3.09 g/t). Total resource endowment including reserves exceeds 5.5M oz Au in situ. The project is a high-grade underground operation with a reserve grade of 3.62 g/t Au, placing it in the top quartile of global gold underground mines by grade.

The 2025 Feasibility Study was prepared in accordance with NI 43-101, with an effective date of April 22, 2025. The NI 43-101 Technical Report was filed on SEDAR+ on June 12, 2025 (within 45 days of the April 28, 2025 FS announcement). Qualified persons for mineral resources are Carl Pelletier, P.Geo. and Tessa Scott, P.Geo. (Norda Stelo, formerly InnovExplo). This constitutes FS-level economic validation with Probable reserves. Reserves are not yet at Proven stage (no Proven reserves reported), meaning there is upside potential from converting Indicated/Inferred to reserves through the ongoing 70,000m exploration program and 13,000m infill drilling program.

Key risks: the project is underground (higher mining complexity vs open-pit); the 1.86M oz Inferred resource cannot be mined under the current plan and requires additional drilling to convert. The Lowhee zone infill drilling in September 2025 returned high-grade intercepts (57.29 g/t over 3.05m), suggesting the resource could grow. BC jurisdiction carries moderate permitting/ESG risk; however, both the BC EAO Environmental Assessment Certificate (granted October 10, 2023) and BC Mines Act permits (November 20, 2024) and Environmental Management Act permits (December 12, 2024) have all been received. Project is fully permitted.
Capital Structure Health
3/5
As of December 31, 2025, Osisko Development held C$422.3M in cash. Following the US$143.8M bought deal at US$3.54/share (completed February 3, 2026) and the C$24.9M Appian warrant exercise (March 9, 2026), estimated cash exceeds C$650M before construction draws. Outstanding debt under the Appian US$450M senior secured credit facility is approximately US$106.4M (C$145.8M) drawn as of year-end 2025, with up to US$350M in additional tranches available upon FID.

Shares outstanding stood at 255,069,516 as of December 31, 2025 (per the Form 40-F). The February 2026 bought deal added ~40.6M shares, and the March 2026 Appian warrant exercise added ~5.6M shares, for a total of approximately 301M shares outstanding as of April 2026. Remaining warrant overhang (as of December 8, 2025) includes: ~7.75M warrants at C$14.75 (exp Mar 2027), ~11.36M at US$10.70 (exp May 2027), ~44.6M at US$3.00 (exp Oct 2029 — these are the most dilutive if exercised), plus options/RSUs (~5.7M options, ~1.8M RSUs). Fully diluted count is approximately 365M shares if all in-the-money warrants convert — representing meaningful dilution at current prices (~C$4.50-$5.20).

The capital score is constrained to 3 (not 4 or 5) because: (1) the C$881M initial capex project will require the remaining US$350M Appian facility draws plus continued equity support, meaning substantial dilution risk remains; (2) the US$3.00 warrant tranche (~44.6M warrants) is deeply in-the-money and creates overhang; (3) the project has not yet reached FID, so the full construction financing stack is not closed. Positively, the company is well-funded for pre-construction and exploration activities through 2026, and has a clear path to close the remaining financing at FID.
Catalyst Proximity
4/5
The Final Investment Decision (FID) is the single most significant near-term catalyst for ODV. As of April 2026, FID has not been formally made but is described as imminent, with JDS Energy & Mining appointed as project and construction manager (February 9, 2026), 2.1 km of underground development complete, six surface and three underground drill rigs operating, and a 266-room site camp expanded and operational. The company resumed planned site activities in March 2026 following a temporary suspension from an January 22, 2026 incident. Construction could realistically begin H1 2026, with first gold targeted H2 2027 (24-month build).

Additional near-term catalysts include: (1) Updated Mineral Reserve estimate from the ongoing 70,000m exploration/infill drilling campaign (launched in late 2025, expected 2026 results); (2) Release of Q1 2026 financial results; (3) Progress toward fully drawing the remaining US$350M under the Appian facility (a formal milestone requiring FID); (4) Ongoing infill drill results from the 13,000m campaign targeting resource-to-reserve conversion (December 2025 results showed 130 g/t Au over 0.5m and 8.56 g/t Au over 8.5m); (5) Potential sale/resolution of the Tintic Project (Utah) and completion of the San Antonio (Mexico) divestiture.

The FID catalyst is likely within weeks to a few months (H1 2026), which would be a major re-rating event. The combination of a fully-permitted, FS-backed project with construction management hired and pre-construction underway argues for a high catalyst score. The score is 4 rather than 5 because FID has not yet been formally announced and there remains execution risk on the construction timeline.
Comparable Acquisition Value
3/5
The 2025 Feasibility Study (FS-level — no study-tier discount required) reports an after-tax NPV5% of C$943M at US$2,400/oz gold (base case) and C$2,066M at US$3,300/oz (approximate spot gold as of April 2026). Using a USDCAD rate of 1.35, these translate to approximately US$699M (base) and US$1,530M (spot).

With ~301M shares outstanding (post-February 2026 bought deal and March 2026 warrant exercise) and a US$3.30/share price (NYSE, approximately April 10, 2026), the market cap is approximately US$993M. Net cash is estimated at roughly US$370M (C$650M cash minus C$145M debt = C$505M net ≈ US$374M). Enterprise value (EV) is approximately US$619M. The EV/NPV (base case) is US$619M / US$699M = ~0.89x; at spot gold, EV/NPV = US$619M / US$1,530M = ~0.40x. On a P/NAV basis using the FS NPV per share: base case NAV per share = US$699M / 301M = US$2.32/share → P/NAV = 3.30/2.32 = 1.42x (base); spot NAV per share = US$1,530M / 301M = US$5.09/share → P/NAV = 3.30/5.09 = 0.65x (spot). EV per reserve oz = US$619M / 2,070,000 oz = ~US$299/oz, which is at a moderate discount to comparable-stage FS-backed gold developers (peer range typically US$300-600/oz for FS-stage permitted projects in stable jurisdictions in a US$3,000+ gold price environment.

The scoring reflects the dual reality: at the FS base case gold price (US$2,400), ODV trades at a P/NAV above 1.0x (score 2); at spot gold (~US$3,300), it trades at ~0.65x P/NAV (score 3-4). Given that the market is pricing gold at US$3,300+, the more relevant valuation anchor is the spot case. The FS has not been updated to reflect current gold prices, which is itself a near-term catalyst. At spot gold the project economics improve dramatically (IRR 38%, NPV C$2.07B, payback 1.6 years), but the FS base case was built at US$2,400. Score of 3 reflects the uncertainty around gold price assumptions, the US$881M capex execution risk, and the premium the market assigns to a construction-stage Canadian gold project with a well-known sponsor.
Analyst Summary

Osisko Development (ODV) receives a WATCH verdict with a composite score of 18/25. The two strongest factors are Geology (4) and Catalyst Proximity (4). The Cariboo Gold Project stands out as a rare fully permitted, FS-backed, high-grade underground gold project in a tier-1 jurisdiction, with 2.07M oz in Probable reserves at 3.62 g/t Au backed by a NI 43-101 Feasibility Study filed on SEDAR+ June 12, 2025. The Final Investment Decision appears imminent — JDS has been contracted as construction manager, 2.1 km of underground development is complete, and US$650M+ in construction capital is in hand, all pointing to an FID in H1 2026 and first gold targeted in H2 2027. Sean Roosen's track record (Canadian Malartic discovery and C$3.9B sale, Osisko Gold Royalties founder) adds significant credibility.

The weakest factor is Capital Structure (3), driven by the dilution embedded in the path to construction. The C$881M initial capex requires drawing the remaining US$350M Appian facility (triggered at FID), and approximately 44.6M warrants at US$3.00 are deeply in-the-money, creating an overhang of ~365M fully diluted shares. Management ownership at the board level is under 1% (though Roosen and Double Zero Capital have been active buyers). The acquisition value factor (3) is constrained by the fact that at the FS base case gold price (US$2,400/oz), ODV trades at a P/NAV above 1.0x (~1.42x); only when marked to spot gold (~US$3,300/oz) does the project look inexpensive at ~0.65x P/NAV. The FS has not been updated to reflect current gold price strength, which the market has not fully re-rated.

The key catalyst to watch is the formal FID announcement, expected H1 2026, which would trigger the US$350M Appian facility draw, formalize the construction timeline, and likely prompt an updated economic analysis at current gold prices. A spot-gold FS update or construction decision announcement could be a significant re-rating event, potentially moving ODV toward a C$6-7 range implied by analyst consensus (C$7.29-C$7.50 targets). Investors should monitor the 70,000m infill drill program results, which could also expand the reserve base before or alongside construction, further improving project economics.

Valuation
NAV / Share C$2.3200
Price at Scoring C$4.9800
P/NAV Multiple 2.15x

Reference: explorers 0.1–0.3x · acquisition range 0.5–1.0x

Company
Exchange / Ticker
TSXV:ODV
Jurisdiction
British Columbia, Canada
Primary Commodity
Gold
Website
https://osiskodev.com
Disclaimer

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