Note 9 - Subsequent Event

In January 2019, the Company sold 924,500 common shares through its at-the-market program and realized net proceeds of $0.4 million.

Since December 31, 2018, holders of the Company’s March 2018 Series A warrants exercised approximately 2.5 million shares, resulting in proceeds to the Company of $1.5 million.

Since December 31, 2018, the Company granted stock options to its employees to purchase a total of 530,000 common shares at a price range from $0.43 to $0.58 per share related to new hires.

On March 6, 2019, the Company executed an amendment to the Company’s 2013 Amended and Restated Stock Plan, as amended (the “Plan Amendment”). The Plan Amendment increased the number of shares of common stock that the Company is authorized to issue under the plan to 22,750,000 shares.

On March 6, 2019, the Company filed a Certificate of Amendment to its Certificate of Incorporation, as amended, with the Secretary of State of the State of Delaware to increase the number of authorized shares of Actinium’s common stock from 400,000,000 to 600,000,000 shares.