Common Stock	9 Months Ended
Sep. 30, 2020
Common Stock
Common Stock	3. Common Stock As of September 30, 2020, the Company was authorized to issue up to 50,000,000 shares of common stock, par value $0.001 per share, and there were 22,174,428 shares of common stock issued and outstanding. In January 2020, we issued 3,412,969 shares of common stock, including the exercise in full of the underwriters' option to purchase an additional 445,170 shares, resulting in net proceeds of approximately $239.6 million. In May 2020, we issued 1,550,648 shares of common stock, including the exercise in full of the underwriter’s option to purchase an additional 202,259 shares, resulting in net proceeds of approximately $114.9 million. In July 2020, we issued 3,085,867 shares of common stock, including the exercise in full of the underwriters' option to purchase an additional 402,504 shares, resulting in net proceeds of approximately $248.2 million. In September 2019, we entered into equity distribution agreements with three sales agents, pursuant to which we may offer and sell from time to time through an “at-the-market” offering program, or ATM Program, up to $250.0 million in shares of our common stock. During the three months ended September 30, 2020, we sold 474,000 shares of our common stock for net proceeds of approximately $58.1 million under the ATM Program, which includes the payment of approximately $1.2 million to one sales agent as commission for such sales. During the nine months ended September 30, 2020, we sold 1,499,382 shares of our common stock for net proceeds of approximately $138.4 million under the ATM Program, which includes the payment of approximately $2.8 million to one sales agent as commission for such sales.

Common Stock

9 Months Ended

Sep. 30, 2020

3. Common Stock

As of September 30, 2020, the Company was authorized to issue up to 50,000,000 shares of common stock, par value $0.001 per share, and there were 22,174,428 shares of common stock issued and outstanding.

In January 2020, we issued 3,412,969 shares of common stock, including the exercise in full of the underwriters' option to purchase an additional 445,170 shares, resulting in net proceeds of approximately $239.6 million.

In May 2020, we issued 1,550,648 shares of common stock, including the exercise in full of the underwriter’s option to purchase an additional 202,259 shares, resulting in net proceeds of approximately $114.9 million.

In July 2020, we issued 3,085,867 shares of common stock, including the exercise in full of the underwriters' option to purchase an additional 402,504 shares, resulting in net proceeds of approximately $248.2 million.

In September 2019, we entered into equity distribution agreements with three sales agents, pursuant to which we may offer and sell from time to time through an “at-the-market” offering program, or ATM Program, up to $250.0 million in shares of our common stock. During the three months ended September 30, 2020, we sold 474,000 shares of our common stock for net proceeds of approximately $58.1 million under the ATM Program, which includes the payment of approximately $1.2 million to one sales agent as commission for such sales. During the nine months ended September 30, 2020, we sold 1,499,382 shares of our common stock for net proceeds of approximately $138.4 million under the ATM Program, which includes the payment of approximately $2.8 million to one sales agent as commission for such sales.