X0609 4 2025-02-17 0001038277 RADNOSTIX INC INIS 0001332430 GROSSO CHRISTOPHER G false 4137 COMMERCE CIRCLE IDAHO FALLS ID 83401 1 1 0 Common Stock 2025-02-17 4 J 0 269999 0 A 38477083 D Common Stock 2025-02-17 4 J 0 40384 0 A 365550 I As UTMA Custodian for daughter Common Stock 2025-02-17 4 J 0 40384 0 A 365550 I As UTMA Custodian for Son Common Stock 2025-02-17 4 J 0 230769 0 A 11681898 I By Dianne Grosso Credit Shelter Trust Represents shares of common stock issued in lieu of cash, at the option of the holder, for dividends payable on the issuer's outstanding Series C Redeemable Convertible Preferred Stock. /s/ Shahe Bagerdjian, Attorney-in-fact 2026-04-30