Stockholders' Equity

3 Months Ended

Mar. 31, 2020

Stockholders' Equity Attributable to Parent [Abstract]

Stockholders' Equity

Stockholders’ Equity

Common Stock

Total common stock authorized to be issued as of March 31, 2020 was 1,000,000,000 shares, with a par value of $0.0001 per share. At March 31, 2020 and December 31, 2019, there were 40,700,206 and 39,817,917 shares outstanding, inclusive of 4,689 and 6,219 restricted shares subject to repurchase for unvested shares related to early option exercises under the Company’s stock equity plans, respectively.

During 2019, the Company issued an aggregate of 11,530,442 shares of common stock related to various cash and cashless (net) exercises of warrants for common stock. Cash exercises for warrants for 617,296 shares of common stock resulted in aggregate gross proceeds of approximately $6,184, of which $6,092 was received in cash, $92 was received in digital

currencies. Furthermore, there were 13,975,359 warrants exercised under cashless (net) provisions resulting in the issuance of 10,913,146 shares of common stock.

Warrants

The Company has various warrants outstanding. A summary of the Company’s warrant activity is set forth below:

Warrant Type	Cash Exercise Price per share		Warrants Outstanding December 31, 2019	Warrants Exercised		Warrants Outstanding March 31, 2020
				Cash	Cashless
Common stock warrant (Series D-1)	$	5.54	14,866	—	—	14,866
Common stock warrants (Series F)	$	9.22	377,402	—	—	377,402
Public Warrants (PHUNW)	$	11.50	1,761,291	—	—	1,761,291
Private Placement Warrants	$	11.50	1,658,381	—	—	1,658,381
Unit Purchase Option Warrants	$	11.50	24,172	—	—	24,172
Total			3,836,112	—	—	3,836,112