Note 7 — Equity

Common Stock

On August 21, 2015, we filed a universal shelf registration statement with the U.S. Securities and Exchange Commission enabling us to offer and sell from time to time up to $100 million of equity, debt or other types of securities. We also entered into an at-the-market (“ATM”) equity offering sales agreement with Cowen & Company, LLC (“Cowen”) on August 20, 2015, under which we may offer and sell shares of our common stock having an aggregate value of up to $35 million. On March 8, 2018, we amended our August 20, 2015 equity offering sales agreement (“Amended Agreement”) with Cowen whereby the maximum aggregate value of the Company’s common stock (“Shares”) we may offer and sell, from time to time, was increased from $35,000,000 to $50,000,000. The Company intends to use the proceeds of this offering for Gabriel product development and marketing, and general corporate purposes, which may include working capital, capital expenditures, other corporate expenses and acquisitions of complementary products, technologies or businesses.

During the three months ended March 31, 2018, we sold 1,751,689 shares under the ATM. The average sales price per common share was $4.02 and the aggregate proceeds from the sales totaled $7,042 during the period. Sales commissions, fees and other costs associated with the ATM totaled $212.

Warrants

In 2015 we issued warrants (“Advisor Warrants”) for the purchase of 25,000 shares of common stock at an exercise price of $7 per share, which expire in April 2020. The Advisor Warrants were issued for advisory services provided by a third party. Our Advisor Warrants were recorded at fair value on the issuance date and included in Additional Paid in Capital on our Condensed Consolidated Balance Sheet. The Advisor Warrants are exercisable by the holder, in whole or in part, until expiration, and may also be net-share-settled. Terms of the warrant agreement include no registration requirements for the underlying common stock and there are no anti-dilution provisions. The fair value at issuance of the warrants was recorded in Prepaid Expenses and Other Current Assets and was amortized over the twelve-month life of the service contract, with the expense included in Selling, General and Administrative Expense in our Condensed Consolidated Statements of Operations.

The fair value of the Advisor Warrants at the issuance date of $121 was estimated utilizing the Black-Scholes valuation model with the following assumptions: (i) dividend yield on our common stock of 0 percent, (ii) expected stock price volatility of 87.5 percent, (iii) a risk-free interest rate of 1.33 percent, and (iv) an expected warrant term of 5 years.

Information about warrants outstanding during the three months ended March 31, 2018 follows:

Original Number of Warrants Issued		Exercise Price per Common Share		Exercisable at December 31, 2017		Became Exercisable		Exercised		Terminated / Cancelled / Expired		Exercisable at March 31, 2018		Expiration Date
	25,000	$	7.00		25,000		—		—		—		25,000	April 2020
					25,000		—		—		—		25,000