Warrants

6 Months Ended

Jun. 30, 2022

Warrants

Warrants

9. Warrants

A summary of warrant activity during the six months ended June 30, 2022 is as follows:

				Weighted-Average
			Weighted	Remaining
	Number of		Average	Contractual Term
	Warrants		Exercise Price	(Years)
Warrants outstanding, December 31, 2021	2,776,191
Expired	(155)
Exercises (see Note 8)	(1,760,870)
Warrants outstanding, June 30, 2022	1,015,166	$	0.66	1.4

The warrants outstanding as of June 30, 2022 included 869,566 Pre-Funded Warrants with an exercise price of $0.0001 per-share and no expiration date.