Basic net loss per share is calculated by dividing net loss attributable to common stockholders by the weighted-average number of common shares outstanding during the period and excludes any dilutive effects of stock-based awards and warrants. Diluted net loss per share attributable to common stockholders is computed giving effect to all potentially dilutive common shares, including common stock issuable upon exercise of stock options and warrants. As the Company had net losses during the three months ended March 31, 2023 and 2022, all potentially dilutive common shares were determined to be anti-dilutive.

Securities that were not included in the diluted per share calculations because they would be anti-dilutive were as follows (in shares):


	For the Three Months Ended March 31,
	2023		2022
Options to purchase common stock		61,844		42,739
Warrants to purchase common stock		268,698		283,751
Preferred investment options		1,489,952		—
Total		1,820,494		326,490