Note 10 - Common Stock Warrants

12 Months Ended

Dec. 31, 2022

Notes to Financial Statements

Common Stock Warrants Disclosure [Text Block]

Note 10. Common Stock Warrants

As of December 31, 2022 and 2021, outstanding warrants to purchase shares of Common Stock were as follows:

Date Exercisable	Number of Shares Issuable			Exercise Price		Exercisable for	Classification	Expiration
December 2020		2,407,500	(1)	$	11.50	Common Stock	Equity	December 2025
December 2020		24,583	(2)	$	11.50	Common Stock	Equity	December 2025
December 2020		1,929,111	(3)	$	1.97	Common Stock	Equity	April 2023
May 2021		115,851	(4)	$	8.63	Common Stock	Equity	May 2026
Total		4,477,045

 

(1) Consists of 2,407,500 shares of Common Stock underlying warrants to purchase one-half (1/2) of one share of Common Stock, issued in connection with Tottenham’s initial public offering. We may redeem the outstanding warrants, in whole and not in part, at $0.01 per warrant if the last sales price of our Common Stock equals or exceeds $16.50 per share for any twenty trading days within a thirty-trading day period. As of December 31, 2022 and 2021, no warrants had been exercised.

(2) Consists of 24,583 shares of Common Stock underlying warrants to purchase one-half (1/2) of one share of Common Stock, issued to Chardan Capital Markets, LLC (“Chardan”) upon exercise of their unit purchase option, which was issued in connection with Tottenham’s initial public offering. As of December 31, 2022 and 2021, no warrants had been exercised.

(3) Consists of 1,929,111 shares of Common Stock underlying warrants to purchase one share of Common Stock, issued by Clene Nanomedicine as Series A preferred stock and senior equity Warrants in August 2013. As of December 31, 2022 and 2021, none of the warrants had been exercised.

(4) Consists of 115,851 shares of Common Stock underlying the Avenue Warrant. As of December 31, 2022 and 2021, the warrant had not been exercised.