0001918080 2026-02-23 2026-02-23 true 0001918080 8-K/A 2026-02-23 DEEP ISOLATION NUCLEAR, INC. DE 000-56406 87-4225965 2001 Addison Street Suite 300 Berkeley CA 94704 509 943-5222 false false false false true false This Current Report on Form 8-K/A (this “Amendment”) amends and restates the Current Report on Form 8-K filed by Deep Isolation Nuclear, Inc. (the “Company”) with the U.S. Securities and Exchange Commission on August 31, 2026 (the “Original Report”). The purpose of this Amendment is to correct certain numerical errors in Item 5.02 of the Original Report relating to the one-time bonus payments to Chris Parker, Chief Commercial Officer, and Jesse Sloane, Executive Vice President, Engineering. No other changes have been made to the Original Report. Except as specifically amended hereby, the Original Report remains in full force and effect as originally filed.