Quarterly report pursuant to Section 13 or 15(d)

WARRANTS

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WARRANTS
 9 Months Ended
Sep. 30, 2021
Warrants and Rights Note Disclosure [Abstract]  
WARRANTS WARRANTS
From time to time, we have issued warrants to purchase shares of common stock. These warrants were issued in connection with financing transactions or in exchange for consulting services. Our warrants were subject to standard anti-dilution provisions applicable to shares of our common stock. All of the warrants issued have been either exercised, cancelled, or expired as of December 31, 2020 and no warrants have been issued in 2021.

    A roll-forward of warrant share activity from January 1, 2020 to September 30, 2020 is shown in the following table:
  Exercise Price Expiration Date Issued and
Outstanding
Warrants as of
January 1, 2020		 Warrants
Exercised/
Expired		 Issued and Outstanding Warrants as of September 30, 2020
Consulting Warrants $0.01 6/17/2020 6,667  (6,667) (1) — 
Financing Warrants $3.35 6/17/2020 62,530  (62,530) (2) — 
Private Placement Warrants - September 2017 $4.85 9/28/2020 1,966,319  (1,966,319) (3) — 
Placement Agent Warrants $4.85 9/28/2020 98,846  (98,846) (4) — 
  2,134,362  (2,134,362) — 

(1) During the nine months ended September 30, 2020, there were 6,667 warrants that were exercised through a cashless exercise which netted 6,640 shares being issued.
(2) During the nine months ended September 30, 2020, there were 62,530 warrants that expired.
(3) During the nine months ended September 30, 2020, there were 5,319 warrants that were cancelled and 1,961,000 warrants that expired.
(4) During the nine months ended September 30, 2020, there were 98,846 warrants that expired.