Basic and diluted loss per share

12 Months Ended

Dec. 31, 2021

Basic and diluted loss per share

Basic and diluted loss per share

22. Basic and diluted loss per share:

	December 31,		December 31,		December 31,
	2021		2020		2019
Net loss attributable to the common shareholders of:
Greenbrook TMS	$	(24,751,487)	$	(29,663,540)	$	(15,909,879)
Weighted average common shares outstanding:
Basic and diluted		15,423,870		12,799,876		10,765,719
Loss per share:
Basic and diluted	$	(1.60)	$	(2.32)	$	(1.48)

For the year ended December 31, 2021, the effect of 897,500 (December 31, 2020 – 736,500; December 31, 2019 – 599,634) options, 51,307 lender warrants (December 31, 2020 – 51,307; December 31, 2019 – nil) and nil broker warrants (December 31, 2020 – 112,909; December 31, 2019 – 213,638) have been excluded from the diluted calculation because this effect would be anti-dilutive.