12. WARRANTS

The following table presents information about warrants to purchase common stock issued and outstanding at June 30, 2020:


			Number of	Exercise Price
Year Issued	Defined Name	Classification	Warrants	as of June 30, 2020		Date of Expiration
2014	2014 Warrants	Equity	11	$	352.50	5/9/2021
2016	2016 Warrants	Equity	2,865	$	7,500.00	3/18/2021
2018	2018 Series A Warrants	Equity	211,921	$	6.98	6/25/2023
2019	Placement Agent Warrants	Equity	15,168	$	4.50	11/21/2024
2020	2020 Series A Warrants	Equity	2,545,455	$	2.75	3/10/2025
2020	Wainwright March 2020 Placement Agent Warrants	Equity	165,455	$	3.4375	3/5/2025
2020	2020 Series B Warrants	Equity	12,728	$	0.00001	Until Fully Exercised
2020	2020 Series C Warrants	Equity	1,680,240	$	1.62	10/17/2025
2020	Wainwright April 2020 Placement Agent Warrants	Equity	111,491	$	2.1875	4/15/2025
Total			4,745,334
Weighted average exercise price				$	7.08
Weighted average life in years						4.82