6-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of January 2026

Commission File Number 001-42611

ISOENERGY LTD.

(Exact name of Registrant as specified in its charter)

N/A

(Translation of Registrant’s name into English)

217 Queen Street West, Suite 303

Toronto, Ontario

M5V 0R2

Tel: 1-833-572-2333

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

Form 20-F  ☐            Form 40-F  ☒

EXHIBIT INDEX

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Exhibit 99.1

IsoEnergy Completes C$57.5 Million Bought Deal Financing

All monetary amounts are expressedin Canadian Dollars, unless otherwise indicated.

TORONTO, Jan. 27, 2026 /CNW/ - IsoEnergy Ltd. (NYSE American: ISOU) (TSX: ISO) (the "Company" or "IsoEnergy") is pleased to announce that it has closed its previously announced bought deal financing, pursuant to which the Company sold 3,833,410 common shares of the Company ("CommonShares") at a price of C$15.00 per Common Share for gross proceeds of C$57,501,150 (the "Offering"), which includes the full exercise of the over-allotment option. The Offering was conducted by a syndicate of underwriters, led by Stifel Canada, Canaccord Genuity Corp. and Jett Capital Advisors, LLC (the "Underwriters").

The proceeds from the Offering are expected to be used to fund the continued development and further exploration of the Company's mineral properties, and for general corporate purposes.

Additionally, the Company anticipates that closing of its previously announced non-brokered concurrent private placement (the "Concurrent Private Placement") with NexGen Energy Ltd. ("NexGen") will occur on or about the date hereof.

This press release shall notconstitute an offer to sell or the solicitation of an offer to buy nor shall there be any sale of the securities in any state in whichsuch offer, solicitation or sale would be unlawful. The securities have not been, nor will they be, registered under the United StatesSecurities Act of 1933, as amended (the "U.S. Securities Act") and may not be offered or sold in the United States absent registrationor an applicable exemption from the registration requirements of the U.S. Securities Act, and applicable state securities laws.

About IsoEnergy Ltd.

IsoEnergy (NYSE American: ISOU; TSX: ISO) is a leading, globally diversified uranium company with substantial current and historical mineral resources in top uranium mining jurisdictions of Canada, the U.S. and Australia at varying stages of development, providing near-, medium- and long-term leverage to rising uranium prices. IsoEnergy is currently advancing its Larocque East project in Canada's Athabasca basin, which is home to the Hurricane deposit, boasting the world's highest-grade indicated uranium mineral resource. IsoEnergy also holds a portfolio of permitted past-producing, conventional uranium and vanadium mines in Utah with a toll milling arrangement in place with Energy Fuels. These mines are currently on standby, ready for rapid restart as market conditions permit, positioning IsoEnergy as a near-term uranium producer.

Neither the Toronto StockExchange nor its Regulation Services Provider (as that term is defined in the policies of the Exchange) accepts responsibility for theadequacy or accuracy of this press release.

Disclosure regarding forward-lookingstatements

This press release contains"forward-looking statements" within the meaning of the United States Private Securities Litigation Reform Act of 1995 and "forward-lookinginformation" within the meaning of applicable Canadian securities legislation (collectively, referred to as "forward-lookinginformation"). Generally, forward-looking information can be identified by the use of forward-looking terminology such as "plans","expects" or "does not expect", "is expected", "budget", "scheduled", "estimates","forecasts", "intends", "anticipates" or "does not anticipate", or "believes", or variationsof such words and phrases or state that certain actions, events or results "may", "could", "would", "might"or "will be taken", "occur" or "be achieved". This forward-looking information may relate to the Offeringand the Concurrent Private Placement, including statements with respect to the anticipated use of the net proceeds from the Offering,completion of the Concurrent Private Placement; and any other activities, events or developments that the Company expects or anticipateswill or may occur in the future.

Forward-looking statementsare necessarily based upon a number of assumptions that, while considered reasonable by management at the time, are inherently subjectto business, market and economic risks, uncertainties and contingencies that may cause actual results, performance or achievements tobe materially different from those expressed or implied by forward-looking statements. Such assumptions include, but are not limited to,IsoEnergy will complete the Concurrent Private Placement in accordance with the terms and conditions of the relevant agreements; the priceof uranium; and that general business and economic conditions will not change in a materially adverse manner. Although IsoEnergy has attemptedto identify important factors that could cause actual results to differ materially from those contained in forward-looking information,there may be other factors that cause results not to be as anticipated, estimated or intended. There can be no assurance that such informationwill prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements.Accordingly, readers should not place undue reliance on forward-looking information.

Such statements representthe current views of IsoEnergy with respect to future events and are necessarily based upon a number of assumptions and estimates that,while considered reasonable by IsoEnergy, are inherently subject to significant business, economic, competitive, political and socialrisks, contingencies and uncertainties. Risks and uncertainties include, but are not limited to the following: a material adverse changein the timing of and the terms and conditions upon which the Concurrent Private Placement is completed; regulatory determinations anddelays; stock market conditions generally; demand, supply and pricing for uranium; and general economic and political conditions in Canada,the United States and other jurisdictions where the applicable party conducts business. Other factors which could materially affect suchforward-looking information are described in the risk factors in IsoEnergy's most recent annual management's discussion and analysis orannual information form and IsoEnergy's other filings with the Canadian securities regulators which are available under the Company'sprofile on SEDAR+ at www.sedarplus.ca. IsoEnergy does not undertake to update any forward-looking information, except in accordance withapplicable securities laws.

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SOURCE IsoEnergy Ltd.

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%CIK: 0001997377

For further information: For further information, please contact: IsoEnergy Ltd., Philip Williams, CEO and Director, (833) 572-2333, [email protected]

CO: IsoEnergy Ltd.

CNW 09:15e 27-JAN-26