Why Is Actinium Pharmaceuticals Stock Rising Today?
Actinium Pharmaceuticals, Inc. (ATNM) stock was in the spotlight on Friday after the company announced promising new preclinical findings for its novel radiotherapy, ATNM-400, at the 2025 San Antonio Breast Cancer Symposium (SABCS).
The Actinium-225 (Ac-225) antibody radioconjugate demonstrated strong anti-tumor activity across multiple breast cancer models, including hormone receptor–positive (HR+), triple-negative (TNBC), and treatment-resistant tumors.
ATNM-400's Broad Potential
The company's latest research shows ATNM-400 achieving substantial tumor-growth suppression with minimal side effects in preclinical studies.
The therapy targets a validated antigen overexpressed in breast cancer and other solid tumors, such as Prostate Cancer and Non-Small Cell Lung Cancer (NSCLC), positioning ATNM-400 as a potential pan-tumor radiotherapy solution.
Following the update, Actinium's stock traded over 3% higher in Friday's premarket.
Get updates to this developing story directly on Stocktwits.
Legal Disclaimer:
MENAFN provides the
information “as is” without warranty of any kind. We do not accept
any responsibility or liability for the accuracy, content, images,
videos, licenses, completeness, legality, or reliability of the information
contained in this article. If you have any complaints or copyright
issues related to this article, kindly contact the provider above.

Comments
No comment