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Commitments and Contingencies | 9 Months Ended
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Sep. 30, 2025
Commitments and Contingencies [Abstract] |
Commitments and Contingencies | Note 2 - Commitments and Contingencies On June 15, 2012, the Company entered into a license and sponsored research agreement with Fred Hutchinson Cancer Research Center (“FHCRC”) to build upon previous and ongoing clinical trials with apamistamab (licensed antibody). FHCRC has completed both a Phase 1 and Phase 2 clinical trial with apamistamab. The Company has been granted exclusive rights to the antibody and related master cell bank developed by FHCRC. A milestone payment of $1 million will be due to FHCRC upon U.S. Food and Drug Administration (“FDA”) approval of the first drug utilizing the licensed antibody. Upon commercial sale of the drug, royalty payments of 2% of net sales will be due to FHCRC. On March 27, 2025, a putative class action complaint (the “Securities Complaint”) was filed by alleged stockholder Nitin Kohil against the Company and executives Sandesh Seth, Avinash Desai, Madhuri Vusirikala, and Sergio Giralt (the “Defendants”), styled Kohil v. Actinium Pharmaceuticals, Inc., et al., Case No. 1:25-cv-02553 in the United States District Court for the Southern District of New York. The Securities Complaint alleges that the Defendants made material misrepresentations and omissions concerning the Iomab-B Phase 3 Sierra Trial and the plaintiff asserts claims against all Defendants pursuant to section 10(b) of the Securities Exchange Act (the “Exchange Act”) and Rule 10b-5 promulgated thereunder, as well as additional claims against the individual Defendants pursuant to Section 20(a) of the Exchange Act. The Complaint purports to assert class action claims on behalf of all persons and entities that purchased or otherwise acquired Actinium securities between October 31, 2022 and August 2, 2024. Plaintiff seeks unspecified damages. On June 24, 2025, the court in the securities action appointed lead plaintiffs who filed an amended Securities Complaint on August 25, 2025. Defendants moved to dismiss the amended Securities Complaint on October 24, 2025. Lead plaintiffs’ opposition is due in late December 2025. On May 5, 2025, a derivative shareholder complaint (the “Georges Complaint”) was filed against the Company and certain of the Company’s directors and officers alleging derivative liability for the allegations made in the Securities Complaint. On May 13, 2025, a second derivative shareholder complaint (the “Robinson Complaint” and, together with the Georges Complaint, the “Derivative Complaints”) was filed against the Company and certain of the Company’s directors also alleging derivative liability for the allegations made in the Securities Complaint. On June 24, 2025, the Court consolidated the Derivative Complaints (the “Derivative Action”). On July 29, 2025, the parties to the Derivative Action filed a stipulation with the Court to stay the Derivative Action pending resolution of any motion to dismiss the Securities Complaint. The Court entered the stipulation on July 30, 2025. The Company and other Defendants intend to defend vigorously against such claims, however, there can be no assurances as to the outcome.

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