In February 2021, the Company sold 10,465,000 shares of its common stock in an underwritten public offering at a price of $11.00 per share, including the exercise in full by the underwriters of their option to purchase up to 1,365,000 additional shares of the Company’s common stock. The gross proceeds of the offering to the Company were approximately $115.1 million. Underwriter discounts and commissions and other share issue costs totaled approximately $7.2 million.

In August 2020, the Company entered into an at-the-market facility (the “ATM Facility”) with Cantor Fitzgerald & Co (“Cantor”). Pursuant to the ATM Facility, the Company may, at its option, offer and sell shares of its common stock from time to time for an aggregate offering price of up to $25.0 million. The Company will pay Cantor a commission of 3.0% of the gross proceeds from any future sales of such shares.

During the three months ended March 31, 2021, the Company sold 48,538 shares of its common stock at a weighted average price of $11.37 per share for gross proceeds of approximately $552,000. Share issue costs, including sales agent commissions, totaled approximately $53,000 during the reporting period.

In February 2020, the Company sold 1,500,000 shares of the Company’s common stock in an underwritten public offering at a price of $14.50 per share for gross proceeds of $21.75 million. Underwriter discounts and commissions and other share issue costs totaled approximately $1.8 million.

The following table provides a reconciliation of fixed price warrants to purchase shares of the Company’s common stock for the three months ended March 31, 2021 and 2020:

	Three Months Ended March 31,
	2021				2020
			Weighted				Weighted
			Average				Average
	Number of		Exercise		Number of		Exercise
	Warrants		Price		Warrants		Price
Balance at beginning of period		48,683	$	12.33		48,683	$	12.33
Balance and exercisable at end of period		48,683	$	12.33		48,683	$	12.33

Pursuant to a credit agreement, the Company issued a warrant to SWK Funding LLC to purchase (i) 40,910 shares of the Company’s common stock on March 28, 2018 at an exercise price of $11.00 per share with a seven-year term and (ii) 7,773 shares of the Company’s common stock on June 26, 2018 at an exercise price of $19.30 per share with a seven-year term. At March 31, 2021, the weighted average remaining life of the warrant was approximately 4.03 years.