Sandesh Seth - 02 Sep 2026 Form 4 Insider Report for Actinium Pharmaceuticals, Inc. (ATNM)

Reporting relationship: Chief Executive Officer, Director
Issuer ticker: ATNM
Reported as of: 02 Sep 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 04 Sep 2026, 17:00:26 UTC
Prior SEC filing: 20 Aug 2025
Source filing: View source filing
Reporting owner signature: /s/ Sandesh Seth

Key filing fact

Sandesh Seth filed Form 4 for Actinium Pharmaceuticals, Inc. (ATNM) on 04 Sep 2026.

Key facts

This page summarizes Sandesh Seth's Form 4 filing for Actinium Pharmaceuticals, Inc. (ATNM).
3 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 04 Sep 2026, 17:00.

Change

Previous filing in this sequence was filed on 20 Aug 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001566175 Primary reporting owner

SETH SANDESH

Relationship: Chief Executive Officer, Director
Address: C/O ACTINIUM PHARMACEUTICALS, INC., 100 PARK AVE., 23RD FLOOR, NEW YORK
Signature: /s/ Sandesh Seth
Signature date: 04 Sep 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

ATNM transaction

Common Stock

Award

Transaction value
Shares: +753,600
Change %: +408%
Price: $0.000000^*
Shares after: 938,081
Date: 02 Sep 2026
Ownership: Direct
Footnotes: F1

ATNM transaction

Common Stock

Award

Transaction value
Shares: +1,027,274
Change %: +110%
Price: $0.000000^*
Shares after: 1,965,355
Date: 02 Sep 2026
Ownership: Direct
Footnotes: F2

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

ATNM transaction Derivative

Stock Option (Right to Buy)

Award

Transaction value
Shares: +1,130,400
Change %
Price: $0.000000^*
Shares after: 1,130,400
Date: 02 Sep 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 1,130,400
Exercise price: $1.00
Footnotes: F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

Represents a grant of restricted stock units ("RSUs"). These RSUs vest as follows: 1/3 on the first anniversary of the date of grant, 1/3 on the second anniversary of the date of grant and 1/3 on the third anniversary of the date of grant.

Footnote F2

Represents a grant of RSUs. These RSUs vest fully on the third anniversary of the date of grant.

Footnote F3

The stock options vest and become exercisable in fifty equal monthly tranches beginning on the date of grant.