F4 and UraniumX Confirm Two Radioactive Trends Through Drilling at Murphy Lake
F4 extends radiometric trends at Murphy Lake, marking continued early-stage uranium exploration without yet identifying economic grades.

F4 Uranium Corp. (FFU) and its partner UraniumX have completed their summer 2026 drill program at the Murphy Lake property in the Athabasca Basin. The campaign totaled 4,092 meters across nine holes in six target areas, surpassing the initial plan of 2,500 meters. The work defined two primary trends: the Murphy Lake South Trend, with a strike length extended to approximately 1.3 kilometers, and the Murphy Lake North Trend, defined over a 330-meter strike.
Five of the six target areas returned anomalous radioactivity, and six of the nine holes exhibited elevated radiometric readings. In the South Trend, hole ML26-023 intersected anomalous radioactivity, recording handheld scintillometer readings greater than 300 cps over 0.5 meters (288.5–289.0 m) with a peak of 400 cps. Downhole gamma readings exceeded 500 cps over 3.2 meters, peaking at 2,696.9 cps.
Historical context from nearby hole ML22-006 returned 0.065% U3O8 over 2.5 meters, including 0.242% over 0.5 meters. The release also confirms the presence of visual pitchblende in hole ML26-015, which was previously announced, but provides no new chemical assay grades.
F4 Uranium Corp. (FFU) is a junior explorer with no established resources or revenue, relying on partner-funded drilling and flow-through financings. The company recently confirmed the completion of its summer 2026 program, which defined two mineralized trends over a combined strike length of approximately 1.6 km. However, the results did not attain economic grades.
The market was already aware of anomalous radioactivity hits in multiple target areas, following releases on June 2, June 9, and June 23. Today’s announcement serves as a summary of these findings rather than introducing new, higher-grade intercepts.
FFU’s stock price had been declining steadily from $0.20 in late April to between $0.10 and $0.12 around the date of this release, despite a series of headlines regarding anomalous radioactivity. This price action suggests the market has already priced in the absence of grade discoveries.
On July 7, 2026, the same day as this news release, the company closed a $1 million financing at $0.15 per unit. The timing of the announcement coincides with the completion of this capital raise.
The news represents incremental exploration progress but does not materially change the deposit’s potential or the company’s net asset value.
F4 Uranium Corp. (FFU) is a pre-revenue junior explorer spun out of F3 Uranium in August 2024. The company holds 17 early-stage uranium exploration properties in the Athabasca Basin. Its flagship Murphy Lake property is optioned to UraniumX (Stearman) with a path to earn a 70% interest for $18 million in expenditures and cash payments. The company also owns Todd Lake and Wales Lake, among others, but currently holds no resources.
The management team has a history of Athabasca discoveries, including Triple R and JR Zone, though F4 has yet to discover an economic deposit. As of March 31, 2026, the company reported cash of approximately $1.55 million and a working capital surplus of $2.45 million. A $1 million flow-through placement closed on July 7, 2026. According to the MD&A, capital is sufficient to maintain operations for the upcoming year, but ongoing exploration will require further funding or partner contributions.