Common Stock Warrant Liabilities

3 Months Ended

Mar. 31, 2020

Warrants and Rights Note Disclosure [Abstract]

Common Stock Warrant Liabilities

Common Stock Warrant Liabilities

Prior to the IPO, we issued convertible preferred stock warrants in conjunction with prior the issuances of debt. We recorded these warrants to purchase convertible preferred stock as a liability on the consolidated balance sheets at fair value upon issuance as the warrants were exercisable for contingently redeemable preferred stock which was classified outside of stockholders' equity (deficit). The liability associated with these warrants were subject to remeasurement at each balance sheet date, with changes in fair value recorded in the consolidated statement of operations and comprehensive Loss as other expense, net.

On May 17, 2019, immediately upon closing of the IPO, our warrants to purchase convertible preferred stock were automatically converted to warrants to purchase an equal number of shares of our Class B common stock. As a result, the warrant was remeasured a final time, immediately prior to the closing of the IPO, and reclassified to additional paid-in capital within stockholders' equity. Changes in the fair value were recorded within other expense, net on the consolidated statement of operations.

In the three months ended March 31, 2020 there were no exercises of Class B common stock warrants. In the three months ended March 31, 2019, there were no exercises of preferred stock warrants. As of March 31, 2020 and December 31, 2019, the warrants are classified and recorded as additional paid-in capital on the condensed consolidated balance sheets.