At-The-Market Offering

6 Months Ended

Jun. 30, 2019

Equity [Abstract]

At-The-Market Offering

At-The-Market Offering

On December 28, 2018, the Company entered into an At-the-Market Equity Offering Sales Agreement (the “2018 Sales Agreement”) with Stifel, as sales agent, pursuant to which the Company can sell through Stifel, from time to time, up to $75.0 million in shares of common stock in an at-the-market offering. All sales of shares will be made pursuant to an effective shelf registration statement on Form S-3 filed with the SEC. The Company pays Stifel a commission of approximately 3% of the aggregate gross proceeds received from all sales of common stock under the 2018 Sales Agreement. Unless otherwise terminated earlier, the 2018 Sales Agreement continues until all shares available under the Sales Agreement have been sold or termination of the 2018 Sales Agreement by the Company or by Stifel. As of June 30, 2019, there were no sales of common stock under the 2018 Sales Agreement.