Basic net loss per common share is calculated by dividing the net loss attributable to common stockholders by the weighted average number of common shares outstanding (including common shares issuable under our Amended and Restated Directors’ Deferred Compensation Plan, or “DDCP”). Diluted loss per common share is calculated by dividing loss attributable to common stockholders by the weighted average number of common shares outstanding (including common shares issuable under our DDCP) plus the dilutive effect of outstanding instruments such as warrants, stock options, non-vested shares and convertible preferred stock. Because we reported a net loss attributable to common stockholders for all periods presented, diluted loss per common share is the same as basic loss per common share, as the effect of utilizing the fully diluted share count would have reduced the net loss per

common share. The following securities (listed on an as-if-converted-to-Common-Stock basis) have been excluded from the computation of diluted weighted average shares outstanding as of June 30, 2025 and 2024, as they would be anti-dilutive (in thousands):


	Three and Six Months Ended June 30,
	2025		2024
Warrants		1,032		965
Stock options		5,242		3,367
Non-vested shares		1,313		38
Series A-1 convertible preferred stock		17		17