Sandesh Seth - Aug 18, 2025 Form 4 Insider Report for Actinium Pharmaceuticals, Inc. (ATNM)

Role: Chief Executive Officer, Director
Signature: /s/ Sandesh Seth
Stock symbol: ATNM
Transactions as of: Aug 18, 2025
Transactions value $: -$206,739
Form type: 4
Date filed: 8/20/2025, 05:00 PM
Previous filing: Apr 2, 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
SETH SANDESH	Chief Executive Officer, Director	C/O ACTINIUM PHARMACEUTICALS,, INC., 100 PARK AVE., 23RD FLOOR, NEW YORK,	/s/ Sandesh Seth	2025-08-20	0001566175

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ATNM	Common Stock	Tax liability	-$207K	-121K	-39.59%	$1.71	184K	Aug 18, 2025	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents shares of common stock withheld to pay Mr. Seth's tax withholding obligations incurred in connection with the vesting of 300,000 restricted stock units, or RSUs, on August 18, 2025. On August 17, 2022, Mr. Seth was granted an award of 300,000 RSUs, in exchange for warrants granted to Mr. Seth on December 17, 2012 for services provided to the Company prior to becoming employed by Actinium. The warrants were in the money since vesting on December 17, 2013. Mr. Seth refrained from exercising the warrants to be aligned with the long-term interests of the Company and stockholders. In November 2018, the Board extended the expiration of Mr. Seth's warrants to February 2022. In February 2022, the Company requested that Mr. Seth not exercise the warrants. In exchange, the Board determined to grant Mr. Seth 300,000 RSUs based on the average fair value of the warrants during their vested life to continue to align Mr. Seth with the long-term interest of the Company and stockholders.

Content

Represents shares of common stock withheld to pay Mr. Seth's tax withholding obligations incurred in connection with the vesting of 300,000 restricted stock units, or RSUs, on August 18, 2025. On August 17, 2022, Mr. Seth was granted an award of 300,000 RSUs, in exchange for warrants granted to Mr. Seth on December 17, 2012 for services provided to the Company prior to becoming employed by Actinium. The warrants were in the money since vesting on December 17, 2013. Mr. Seth refrained from exercising the warrants to be aligned with the long-term interests of the Company and stockholders. In November 2018, the Board extended the expiration of Mr. Seth's warrants to February 2022. In February 2022, the Company requested that Mr. Seth not exercise the warrants. In exchange, the Board determined to grant Mr. Seth 300,000 RSUs based on the average fair value of the warrants during their vested life to continue to align Mr. Seth with the long-term interest of the Company and stockholders.