Drill Results
F4 Uranium drills 0.5 m of 460 cps at Murphy Lake
F4 Uranium’s Murphy Lake Drill Results Confirm Targeting Model, But Assays Await to Validate Grade Potential

Executive Summary
- F4 Uranium Corp. released initial radiometric results from the first two drill holes (ML26-015 and ML26-016) of its ~2,500-metre Murphy Lake drill program in the Athabasca Basin.
- Hole ML26-015 encountered anomalous radioactivity up to 460 counts per second (cps) over 1.0 metre, with visually identified pitchblende and intense hydrothermal alteration just above the Athabasca unconformity.
- Hole ML26-016, a step-out hole, intersected similar but less intense alteration, with scintillometer readings not exceeding 300 cps.
- The drilling program is fully financed by partner UraniumX Discovery Corp. under an option agreement that allows UraniumX to earn up to a 70% interest.
- Drilling will advance to Target 2 to test a conductor identified by a May 5, 2026 MLEM survey.
- Management emphasizes that radiometric readings are preliminary and require laboratory assay confirmation to determine true uranium grades.
Material Impact
- The results are entirely consistent with the company's targeting model and historical data from 2022 (ML22-006 and ML22-012).
- The announcement follows the commencement of drilling in late May 2026, making it an expected, incremental update rather than a market-moving surprise.
- Preliminary radiometric data does not equate to chemical assay grades. The absence of final assay results limits the immediate financial and valuation impact.
- The fully funded nature of the program by UraniumX mitigates near-term capital raising pressure for this specific project, but does not alter the broader capital needs for the company's other properties.
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Company Overview
- F4 Uranium Corp. is a pre-revenue junior explorer spun out from F3 Uranium in August 2024.
- The company holds a portfolio of 17 uranium exploration properties in Saskatchewan's Athabasca Basin, with a carrying value of $6.8 million.
- The flagship Murphy Lake property (609 hectares) is located in a highly prospective corridor, situated 5 km south of IsoEnergy's Hurricane deposit, 4 km east of Cameco's La Rocque Lake zone, and 30 km northwest of Orano's McLean Lake.
- Other key assets include the wholly-owned Todd Lake, Wales Lake, Cree Bay, and Grey Island projects, all targeting the Patterson Lake Corridor and Clearwater Domain.
- The company is currently in the exploration phase, focusing on geophysical surveys and diamond drilling to define drill targets and test geological models.
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Jul 09, 2026 · 10:33