Stockholders Equity (Tables)

3 Months Ended

Mar. 31, 2021

Stockholders Equity

Summary of Warrant Information

At March 31, 2021, outstanding warrants to purchase shares of common stock are as follows:

Shares Underlying Outstanding Warrants	Exercise Price		Expiration Date
597,881	$	21.00	May 10, 2022
1,183,491	$	5.60	October 16, 2023
993,139	$	2.87	February 12, 2025
7,717,661	$	2.87	March 27, 2025
1,867,912	$	3.25	January 25, 2026
4,285,935	$	3.25	March 17, 2026
1,200	$	1,680.00	None
16,647,219