6 Net loss per share

Basic and diluted net loss per common share is determined by dividing net loss applicable to common shareholders by the weighted average number of common shares outstanding during the period. The outstanding convertible preferred shares and share-based compensation have been excluded from the calculation because their effects would be anti-dilutive. Therefore, the weighted average number of shares used to calculate both basic and diluted loss per share are the same.

The following potentially dilutive securities have been excluded from the computation of diluted weighted average shares outstanding as of June 30, as they would be anti-dilutive:


	2019	2018
Convertible preferred shares	—	9,433,910
Share options and unvested restricted share awards	2,440,629	1,801,235
	2,440,629	11,235,145

Amounts in the table above reflect the common share equivalents of the noted instruments.