The Toronto Stock Exchange reports that IsoEnergy Ltd. will list additional shares. As stated in the prospectus supplement dated April 27, 2026, to the short form base shelf prospectus dated Jan. 13, 2026, the company is issuing up to $50-million of common shares to the public, pursuant to the at-the-market (ATM) distribution procedures as defined by National Instrument 44-102, Shelf Distributions.

According to the TSX, the ATM sales will be made directly on the TSX, NYSE American LLC, or any other trading market for the common shares in Canada or the United States, during the period commencing April 17, 2026, and ending upon termination of the equity distribution agreement dated April 17, 2026. As a result of the ATM procedures, prices may vary as between purchasers and during the period of distribution.