Loss Per Share of Common Stock

3 Months Ended

Mar. 31, 2021

Loss Per Share of Common Stock

Loss Per Share of Common Stock

6. Loss Per Share of Common Stock

Basic loss per share is computed by dividing net loss applicable to common stockholders by the weighted average number of shares of common stock outstanding during each period. Diluted loss per share includes the effect, if any, from the potential exercise or conversion of securities, such as convertible preferred stock, convertible notes payable, warrants, stock options, and unvested restricted stock, which would result in the issuance of incremental shares of common stock. In computing the basic and diluted net loss per share applicable to common stockholders, the weighted average number of shares remains the same for both calculations due to the fact that when a net loss exists, dilutive shares are not included in the calculation. These potentially dilutive securities are more fully described in Note 7, and summarized in the table below:

	March 31,
	2021	2020
Convertible preferred stock	950,600	6,000,000
Restricted stock	22,000	5,250
Stock options	4,436,778	3,264,041
	5,409,378	9,269,291