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Sep 04, 2026, 17:05 ET Actinium Pharmaceuticals, Inc. to Present at the H.C. Wainwright 28th Annual Global Investment Conference
NEW YORK, Sept. 4, 2026 /PRNewswire/ -- Actinium Pharmaceuticals, Inc. (NYSE American: ATNM) (Actinium or the Company), a pioneer in the development of targeted radiotherapies, today announced that Sandesh Seth, Chairman and Chief Executive
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Aug 14, 2026, 17:02 ET Actinium Pharmaceuticals Announces Actimab-A Intellectual Property and Manufacturing Advances and Provides NYSE American Listing Update
NEW YORK, Aug. 14, 2026 /PRNewswire/ -- Actinium Pharmaceuticals, Inc. (NYSE American: ATNM) (Actinium or the Company), a pioneer in the development of targeted radiotherapies, today announced advances across its Actimab-A program, including
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Jun 03, 2026, 08:00 ET Actinium Presents New ATNM-400 Data in KRAS and EGFR Mutant Models at SNMMI 2026 Supporting a Mutation-Agnostic Opportunity In Non-Small Cell Lung Cancer
New KRAS-mutant data show ATNM-400 outperformed standard-of-care inhibitors sotorasib and adagrasib as a monotherapy. Treatment with these agents increased expression of the ATNM-400 target greater than 3.5x and enhanced their effect in combination Additional data
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Jun 03, 2026, 07:25 ET Actinium Pharmaceuticals Oral Presentation at SNMMI 2026 Highlights ATNM-400 Overcoming Resistance to All Three Approved Androgen Receptor Inhibitors and Offers Flexible, Well-Tolerated Dosing in Prostate Cancer Models
translation.In high PSMA expressing disease, ATNM-400 outperformed 177Lu-PSMA-617 in terms of activity and was similar to 225Ac-PSMA-617. However, as its target is not expressed in the salivary glands, ATNM-400 is not expected to cause xerostomia which is a key limitation of PSMA
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Jun 01, 2026, 08:00 ET Actinium Appoints Accomplished Oncology Expert Steffen Heeger MD, MSc as Chief Medical Officer to Drive Rejuvenated Pipeline Development
company where he advanced into global development, a PSMA program directly relevant to Actinium's ATNM-400 asset. His appointment comes at a pivotal moment as Actinium prepares to advance Actimab-A, ATNM-400, and Iomab-ACT toward key data readouts and expanded clinical trials in the second half of 2026.
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Jun 01, 2026, 07:00 ET Actinium Pharmaceuticals Presents New Radiochemistry Data at SNMMI 2026 Demonstrating That CAR Optimization Improves Tumor Targeting and Pharmacokinetics of Actinium-225 Radioconjugates
NEW YORK, June 1, 2026 /PRNewswire/ -- Actinium Pharmaceuticals, Inc. (NYSE American: ATNM) (Actinium or the Company), a pioneer in the development of targeted radiotherapies, on May 31, 2026 presented new radiochemistry data at the Society
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May 29, 2026, 17:31 ET Actinium Pharmaceuticals Receives Two Patent Allowances Spanning Its Actimab-A and Iomab-ACT Programs
NEW YORK, May 29, 2026 /PRNewswire/ -- Actinium Pharmaceuticals, Inc. (NYSE American: ATNM) (Actinium or the Company), a leader in the development of targeted radiotherapies, today announced that the Canadian Intellectual Property Office (CIPO)
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May 29, 2026, 17:30 ET Actinium Pharmaceuticals to Present ATNM-400 Program Update at SNMMI 2026 Conference on May 31-June 2 and Provides NYSE American Listing Standards Notice
Pharmaceuticals, Inc. (NYSE American: ATNM) (Actinium or the Company), a leader in the development of targeted radiotherapies, today announced it will provide a program update on its first-in-class Actinium-225 (225Ac) antibody radioconjugate, ATNM-400, highlighting new data that will be showcased
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May 06, 2026, 08:00 ET Actinium Pharmaceuticals Announces Three SNMMI 2026 Presentations Highlighting Differentiated Profile of ATNM-400 Across Lung and Prostate Cancer and Radioconjugate Optimization
differentiated profile of ATNM-400. Importantly, as we head toward clinical studies with ATNM-400, we showcase our efforts to maximize ATNM-400's therapeutic index by utilizing our deep radiochemistry expertise to optimize the CAR. Together, the data to be presented support ATNM-400's growing potential as
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Apr 22, 2026, 07:00 ET Actinium Pharmaceuticals, Inc. Announces Compelling Pan-Tumor Data for ATNM-400 Demonstrating Broad Efficacy Across Prostate, Lung, and Breast Cancer Models at the 2026 American Association of Cancer Research Annual Meeting
AMERICAN: ATNM) (Actinium or the Company), a pioneer in the development of targeted radiotherapies, today announced preclinical results for ATNM-400 across prostate, lung, and breast cancer models presented at the American Association for Cancer Research (AACR) Annual Meeting in San Diego, CA. ATNM-400 is
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Apr 22, 2026, 07:00 ET Actinium Highlights Transcriptional Reprogramming as a Key Mechanism Underpinning Mutation-Agnostic Activity of Actimab-A in AML at the 2026 American Association of Cancer Research Annual Meeting
NEW YORK, April 22, 2026 /PRNewswire/ -- Actinium Pharmaceuticals, Inc. (NYSE AMERICAN: ATNM) (Actinium or the Company), a pioneer in the development of targeted radiotherapies, today highlighted data presented at the American Association for
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Apr 06, 2026, 07:30 ET Actinium Pharmaceuticals Announces New Pan-Tumor Preclinical Data for ATNM-400 in Solid Tumors and Differentiated Mechanism for Actimab-A in AML to be Presented at 2026 AACR Annual Meeting
New data underscoring the potential of ATNM-400 as a first-in-class Ac-225 radioconjugate with broad pan-tumor efficacy across multiple solid tumor models Actimab-A demonstrates mutation-agnostic efficacy and a novel mechanism that enhances response to standard
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Feb 17, 2026, 07:42 ET Actinium Pharmaceuticals, Inc. to Present Two Abstracts at the 2026 AACR Annual Meeting
Presentations to Feature ATNM-400 and Actimab-A Programs Across Solid Tumors and Hematologic Oncology ApplicationsNEW YORK, Feb. 17, 2026 /PRNewswire/ -- Actinium Pharmaceuticals, Inc. (NYSE American: ATNM) ("Actinium" or the
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Dec 12, 2025, 08:45 ET Actinium Pharmaceuticals Presents New Preclinical Data Demonstrating Potent Anti-Tumor Activity of ATNM-400 Across Multiple Breast Cancer Subtypes Including Hormone Receptor-Positive, Triple-Negative, and Tamoxifen- and HER2 Therapy-Resistant Breast Cancer Models at SABCS 2025
cancer reinforces ATNM-400's potential to become a differentiated, first-in-class therapy. Beyond breast cancer, we have presented compelling ATNM-400 data in prostate cancer and lung cancer that demonstrate its pan-tumor potential. These data further support our excitement for ATNM-400 and our plans
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Dec 01, 2025, 08:45 ET Actinium Pharmaceuticals Announces ATNM-400 Data Demonstrating Potent Efficacy in Triple-Negative Breast Cancer and Ability to Overcome Endocrine and HER2-Targeted Therapy Resistance Being Presented at the San Antonio Breast Cancer Symposium
relapse.ATNM-400's Differentiated Profile and Mechanism of Action in Breast CancerATNM-400 represents a fundamentally different therapeutic approach, leveraging the potent alpha-particle emission of Actinium-225 to deliver targeted radiation to breast cancer cells. ATNM-400's target antigen
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Nov 04, 2025, 07:30 ET Actinium Pharmaceuticals, Inc. to Highlight ATNM-400 Data in Hormone-Resistant and HER2-Resistant Breast Cancer at the 2025 San Antonio Breast Cancer Symposium, Expanding Pan-Tumor Profile Across Three Solid Tumor Indications
About ATNM-400 ATNM-400 is a highly innovative, first-in-class, and multi-indication Actinium-225 (Ac-225) targeted radiotherapy candidate in development for prostate cancer, non-small cell lung cancer (NSCLC) and breast cancer. ATNM-400 is highly differentiated
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Nov 03, 2025, 08:30 ET Actinium Pharmaceuticals, Inc. to Participate in the Stephens Biotechnology Virtual Fireside Chat Conference
meaningfully improve patient outcomes. ATNM-400, Actinium's lead product candidate, is a novel, first-in-class, and multi-indication Actinium-225 (Ac-225) in development for prostate cancer and non-small cell lung cancer (NSCLC). The antigen specifically targeted by ATNM-400 is highly expressed in metastatic
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Oct 27, 2025, 07:00 ET Actinium Announces Superior Anti-Tumor Activity of ATNM-400 in Lung Cancer Compared to the Leading First, Second and Third-Line Approved EGFR Mutant Therapies and Mechanistic Synergy with Osimertinib at the AACR-NCI-EORTC International Conference on Molecular Targets and Cancer Therapeutics
Pharmaceuticals, Inc. (NYSE AMERICAN: ATNM) (Actinium or the Company), a pioneer in the development of differentiated targeted radiotherapies, today announced the presentation of the first ever preclinical data of ATNM-400 in non-small cell lung cancer (NSCLC). ATNM-400 a novel, multi-indication first-in-class
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Oct 24, 2025, 08:30 ET Actinium Pharmaceuticals Presents New Data Demonstrating Potent and Durable Efficacy of ATNM-400, a First-in-Class Multi-Tumor Actinium-225 Radiotherapy, at the 32nd Annual Prostate Cancer Foundation Scientific Retreat
About ATNM-400 ATNM-400 is a highly innovative, first-in-class, and multi-indication Actinium-225 (Ac-225) targeted radiotherapy candidate in development for prostate cancer and non-small cell lung cancer (NSCLC). ATNM-400 is highly differentiated
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Oct 13, 2025, 12:10 ET Actinium Pharmaceuticals to Unveil the Multi-Tumor Potential of ATNM-400, a First-in-Class Actinium-225 Radiotherapy, with Data in Non-Small Cell Lung Cancer at the AACR-NCI-EORTC International Conference on Molecular Targets and Cancer Therapeutics
About ATNM-400 ATNM-400 is a highly innovative, first-in-class, and multi-indication Actinium-225 (Ac-225) targeted radiotherapy candidate in development for prostate cancer and non-small cell lung cancer (NSCLC). ATNM-400 is highly differentiated
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Oct 13, 2025, 08:30 ET Actinium to Present ATNM-400 Preclinical Data Highlighting Durable Tumor Control and Ability to Overcome Resistance to Standard-of-Care Prostate Cancer Therapies at the 32nd Annual Prostate Cancer Foundation Scientific Retreat
Pharmaceuticals, Inc. "We look forward to highlighting ATNM-400 at PCF and engaging with prostate cancer KOLs as we work to further advance ATNM-400." About ATNM-400 ATNM-400 is a novel, first-in-class Ac-225 antibody radioconjugate
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