X0609 4 2026-04-24 1 0002089283 Eagle Nuclear Energy Corp. NUCL 0001843474 Spring Valley Acquisition Sponsor II, LLC false 4030 MAPLE AVENUE, SUITE 500 DALLAS TX 75219 0 0 1 0 0001477462 Sorrells Christopher Dixon false 4030 MAPLE AVENUE, SUITE 500 DALLAS TX 75219 0 0 1 0 0 Common Stock 2026-04-24 4 J 0 695810 D 1712525 D Private Warrant 11.5 2026-04-24 4 J 0 2722216 D 2026-03-26 2031-02-24 Common Stock 2722216 6699917 D On April 24, 2026, Spring Valley Acquisition Sponsor II, LLC (the "Sponsor") transferred all of its 2,408,335 shares of common stock and 9,422,133 warrants (the "Securities") of Eagle Nuclear Energy Corp. (the "Issuer") to its members for no consideration. Supercycle Holdings LLC ("Supercycle") received 1,712,525 shares and 6,699,917 warrants. The reported Securities were held directly by the Sponsor and are now held directly by Supercycle. The Sponsor and Supercycle are controlled by Mr. Christopher Sorrells. Accordingly, all of the securities held by the Sponsor and Supercycle may be deemed to be beneficially held by Mr. Sorrells. Each reporting person under this Form 4 disclaims beneficial ownership of the reported securities except to the extent of their respective pecuniary interest therein and the filing of this Form 4 shall not be construed as an admission that any such reporting person is the beneficial owner of any such securities. Supercycle elected to limit the number of shares of common stock that may be issued to a specified threshold of 9.8% of the issued and outstanding shares of common stock (the "Blocker"). As a result of the Blocker, as of the date hereof, any attempted exercise by Supercycle of warrants in excess of the specified threshold will not be effected. Spring Valley Acquisition Sponsor II, LLC, By: /s/ Christopher Sorrells Name: Christopher Sorrells Title: Manager 2026-04-28 /s/ Christopher Sorrells 2026-04-28