On December 30, 2019, the Company entered into a private warrant exchange in which certain accredited investors purchased unregistered common stock at a reduced exercise price per share of $0.50 for any warrant with a stated exercise price greater than $0.50 per share and no discount for warrants with a stated exercise price equal to or less than $0.50 per share. The Company sold 2,230,000 shares of common stock, as well as 446,000 additional shares as an inducement to exercise their warrants, for a total of 2,676,000 shares of common stock, $0.001 par value. Aggregate gross proceeds from the private warrant exchange were approximately $1.1 million.

During January 2020, the Company entered into a private warrant exchange in which certain accredited investors purchased unregistered common stock at a reduced exercise price per share of $0.50 for any warrant with a stated exercise price greater than $0.50 per share and no discount for warrants with a stated exercise price equal to or less than $0.50 per share. The Company issued 4,040,000 shares of common stock, as well as 408,000 additional shares as an inducement to exercise their warrants, for a total of 4,448,000 shares of common stock, $0.001 par value. Aggregate gross proceeds from the private warrant exchange were approximately $1.9 million.

On February 28, 2020, the Company entered into a private warrant exchange in which certain accredited investors purchased unregistered common stock at a range of $0.18 to $0.45 per share as compared to the stated exercise price on their warrant, which ranged from $0.30 to $0.75 per share of common stock. The Company issued 7,842,500 shares of common stock, as well as 784,245 additional shares as an inducement to exercise their warrants, for a total of 8,626,745 shares of common stock, $0.001 par value. Aggregate gross proceeds from the private warrant exchange were approximately $2.2 million.

non-cash