Net Loss per Share

6 Months Ended

Jun. 30, 2023

Basic and diluted net loss per share attributable to common stockholders was calculated as follows:


	Three Months Ended June 30,				Six Months Ended June 30,
	2023		2022		2023		2022
Numerator:
Net loss attributable to common stockholders ($ in millions)	$	(67.2)	$	(67.9)	$	(133.0)	$	(142.7)
Denominator:
Weighted average common shares outstanding — basic and diluted	69,534,731		61,816,225		69,434,971		61,757,722
Net loss per share attributable to common stockholders — basic and diluted	$	(0.97)	$	(1.10)	$	(1.92)	$	(2.31)

The Company’s potentially dilutive securities, which include stock options, unvested RSUs and warrants for common stock, have been excluded from the computation of diluted net loss per share as the effect would be anti-dilutive. Therefore, the weighted average number of common shares outstanding used to calculate both basic and diluted net loss per share attributable to common stockholders is the same. The Company excluded the following potential common shares, presented based on amounts outstanding at each period end, from the computation of diluted net loss per share attributable to common stockholders for the periods indicated because including them would have had an anti-dilutive effect.


	Six Months Ended June 30,
		2023	2022
Options to purchase common stock		9,264,477	8,904,546
Unvested restricted stock		3,293,112	837,289
Warrants for common stock (1)		412,969	—
Total		12,970,558	9,741,835

(1) Each outstanding warrant of Metromile assumed by the Company are converted automatically into warrants denominated in the Company's common stock with the number of warrants and exercise price adjusted based on the exchange ratio of 0.05263.