X0202 SCHEDULE 13G 0002099534 XXXXXXXX LIVE Ordinary Shares, no par value and American Depositary Shares, each representing three hundred Ordinary Shares, no par value 09/30/2026 0001949257 Radiopharm Theranostics Limited 75041J101 Level 3, 62 Lygon Street Carlton Vic C3 3053 Rule 13d-1(b) Regal Partners Funds Management Pty Limited C3 0.00 157139443.00 0.00 157139443.00 157139443.00 N 3.34 FI The number of shares beneficially owned includes: (i) 145,146,643 Ordinary Shares, no par value ("Ordinary Shares") and (ii) 39,976 American Depositary Shares, each representing three hundred Ordinary Shares. Regal Partners Limited C3 0.00 157139443.00 0.00 157139443.00 157139443.00 N 3.34 FI The number of shares beneficially owned includes: (i) 145,146,643 Ordinary Shares, no par value ("Ordinary Shares") and (ii) 39,976 American Depositary Shares, each representing three hundred Ordinary Shares. Radiopharm Theranostics Limited Level 3, 62 Lygon Street, Carlton Vic, Australia, 3053 Regal Partners Funds Management Pty Limited and Regal Partners Limited Level 46, Gateway, 1 Macquarie Place, Sydney NSW 2000 Australian N HC FI FI 157,139,443 3.34 0 157,139,443 0 157,139,443 N Y Y Y Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11. Regal Partners Funds Management Pty Limited /s/ Alexandra Rose 10/15/2026 Regal Partners Limited /s/ Kathleen Liu 10/15/2026