Note 6 — Equity

Common Stock

On July 30, 2018 we filed a $100,000 universal shelf registration statement on SEC Form S-3 which was declared effective by the SEC on August 16, 2018. We also entered an at-the-market equity offering sales agreement (“ATM”) with Cowen & Company, LLC on August 31, 2018, under which we can offer and sell shares of our common stock having an aggregate value of up to $50,000.

We use the ATM proceeds for GABRIEL product development, marketing and general corporate purposes, which may include working capital, capital expenditures, other corporate expenses and acquisitions of complementary products, technologies or businesses. As of June 30, 2019, common stock with an aggregate value of up to $31,584 remained available for offer and sale under the ATM agreement.

During the three months ended June 30, 2019, we sold 467,928 shares under the ATM. The average sales price per common share was $6.28 and the aggregate proceeds from the sales totaled $2,937 during the period. Sales commissions, fees and other costs associated with the ATM totaled $88. During the six months ended June 30, 2019, we sold 1,028,266 shares under the ATM. The average sales price per common share was $5.71 and the aggregate proceeds from the sales totaled $5,873 during the period. Sales commissions, fees and other costs associated with the ATM totaled $176.

Warrants

In 2015 we issued warrants for the purchase of 25,000 shares of common stock at an exercise price of $7 per share, which expire in April 2020. Information about warrants outstanding as of June 30, 2019 is as follows:

Original Number of Warrants Issued		Exercise Price per Common Share		Exercisable at December 31, 2018		Became Exercisable		Exercised		Terminated / Cancelled / Expired		Exercisable at June 30, 2019		Expiration Date
	25,000	$	7.00		25,000		—		—		—		25,000	April 2020
					25,000		—		—		—		25,000