Annual report pursuant to Section 13 and 15(d)

Warrants (Tables)

v3.21.1
Warrants (Tables)
12 Months Ended
Dec. 31, 2020
Warrants and Rights Note Disclosure [Abstract]  
Summary of Warrant Activity
The following table summarizes the warrant activity for the years ending December 31, 2020 and 2019 (in thousands except exercise price): 
Issued With / For Exercise
Price
Warrants
Outstanding
January 1,
2019
2019
Warrants
Issued
2019
Warrants
Expired
Warrants
Outstanding
December 31,
2019
2020
Warrants
Issued
2020
Warrants
Expired
2020
Warrants
Exchanged
Warrants
Outstanding
December 31,
2020
Non-Derivative Warrants:
Financing 300.00 —  —  —  —  — 
Financing 450.00 —  —  —  —  — 
2015 Offering 150.00 115  —  —  115  —  (115) —  — 
2017 Debt 27.60 15  —  —  15  —  —  —  15 
2019 Offering 7.43 —  31  —  31  —  —  —  31 
2019 Offering 7.59 —  35  —  35  —  —  —  35 
2020 Offering 2.42 —  —  —  —  94  —  —  94 
115.54 B 147  66  —  213  94  (115) —  192 
Derivative Warrants:
2016 Offerings 67.50 A 66  —  —  66  —  —  (52) 14 
2017 Offering 70.50 A 117  —  (117) —  —  —  —  — 
2017 Offering 75.00 A —  (6) —  —  —  —  — 
67.50 B 189  —  (123) 66  —  —  (52) 14 
104.18 B 336  66  (123) 279  94  (115) (52) 206 
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AThese warrants are subject to fair value accounting and contain a contingent net cash settlement feature. See Note 14.
BWeighted average exercise prices are as of December 31, 2020.