Net loss per share attributable to common stockholders

12 Months Ended

Sep. 30, 2020

Earnings Per Share [Abstract]

Net loss per share attributable to common stockholders

14. Net loss per share attributable to common stockholders

The following table sets forth the computation of the Company’s basic and diluted net loss per share attributable to common stockholders:

	Year ended September 30,
(in thousands, except per share data)	2020			2019			2018
Numerator:
Net loss attributable to common stockholders	$	(139,931	)	$	(107,669	)	$	(71,236	)
Denominator:
Weighted-average shares used in computing net loss per share, basic and diluted		39,190			27,462			2,793
Net loss per share attributable to common stockholders, basic and diluted	$	(3.57	)	$	(3.92	)	$	(25.51	)

The potentially dilutive common shares that were excluded from the calculation of diluted net loss per share because their effect would have been antidilutive for the periods presented are as follows:

	Year ended September 30,
(in thousands)	2020		2019		2018
Shares subject to options to purchase common stock		3,948		3,551		2,521
Unvested restricted shares of common stock		—		24		97
Unvested restricted stock units		569		462		—
Unvested shares of common stock issued upon early exercise of stock options		17		38		74
Shares subject to employee stock purchase plan		33		76		—
Shares subject to warrants to purchase common stock		26		26		64
Shares subject to warrants to purchase redeemable convertible preferred stock		—		—		79
Shares of redeemable convertible preferred stock		—		—		18,951
Total		4,593		4,177		21,786