In April 2020, the Company completed an underwritten public offering of 16,896,000 shares of its common stock and, to certain investors, pre-funded warrants to purchase 37,650,000 shares of its common stock, and accompanying common warrants to purchase up to an aggregate of 54,546,000 shares of its common stock. Each share of common stock and pre-funded warrant to purchase one share of common stock was sold together with a common warrant to purchase one share of common stock. The public offering price of each share of common stock and accompanying common warrant was $0.33 and $0.329 for each pre-funded warrant. The pre-funded warrants are immediately exercisable at a price of $0.001 per share of common stock. The common warrants are immediately exercisable at a price of $0.33 per share of common stock and will expire five years from the date of issuance. The shares of common stock and pre-funded warrants, and the accompanying common warrants, were issued separately and were immediately separable upon issuance. The gross proceeds to the Company were approximately $18.0 million before deducting underwriting discounts and commissions and other offering expenses of $1.6 million.
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