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Stockholders' Equity
3 Months Ended
Mar. 31, 2018
Equity [Abstract]  
Stockholders' Equity

6.

Stockholders’ Equity

Upon completion of the Company’s IPO, all of the Company’s outstanding shares of convertible preferred stock were converted into an aggregate of 6,690,066 shares of the Company’s common stock.  As of March 31, 2018, the Company’s authorized capital stock consists of 200,000,000 shares of common stock, par value $0.001 per share, and 10,000,000 shares of preferred stock, par value $0.001 per share.

The Company had 19,912,143 and 19,882,551 shares of common stock outstanding as of March 31, 2018 and December 31, 2017, respectively.

Changes in the number of shares of the Company’s common stock outstanding and total stockholders’ equity during the three months ended March 31, 2018 were as follows (in thousands, except share amounts):

 

 

 

Shares of

Common

Stock

 

 

Total

Stockholders’ Equity

 

Balance, December 31, 2017

 

 

19,882,551

 

 

$

71,082

 

Stock-based compensation

 

 

 

 

 

1,521

 

Exercise of stock options

 

 

29,592

 

 

 

29

 

Other comprehensive loss

 

 

 

 

 

(74

)

Net loss

 

 

 

 

 

(12,880

)

Balance, March 31, 2018

 

 

19,912,143

 

 

$

59,678

 

Common Stock Reserved for Future Issuance

Common stock reserved for future issuance at March 31, 2018 is as follows:

 

Issued and Outstanding:

 

 

 

 

Stock options

 

 

3,417,925

 

Warrants for common stock

 

 

10,660

 

Shares reserved for issuance under the ESPP

 

 

398,705

 

Shares reserved for future award grants

 

 

450,466

 

Total

 

 

4,277,756