Quarterly report pursuant to Section 13 or 15(d)

Stockholders' equity (deficit) (Tables)

v3.21.2
Stockholders' equity (deficit) (Tables)
6 Months Ended
Jun. 30, 2021
Stockholders' Equity Note [Abstract]  
Common Stock Reserved for Future Issuance
The Company has reserved common stock for future issuance as follows:
June 30, 2021 December 31, 2020
Conversion of Series F Preferred Stock 5,764,533  7,251,189 
Exercise of options to purchase common stock 2,200,244  1,302,574 
Exercise of warrants to purchase common stock 9,433,584  9,916,997 
Conversion of notes payable —  1,255,039 
Total 17,398,361  19,725,799