Basic and diluted net income (loss) per share are computed using the weighted average number of shares of common stock outstanding during the period, less any shares subject to repurchase or forfeiture. There were no shares of common stock subject to repurchase or forfeiture for the three and six months ended December 31, 2022 and 2021. Diluted net income (loss) per share is computed based on the sum of the weighted average number of common shares and potentially dilutive common shares outstanding during the period.

The following table presents the calculation of net income (loss) used to calculate basic income (loss) and diluted income (loss) per share (in thousands):


	Three Months Ended December 31,					Six Months Ended December 31,
	2022		2021			2022			2021
Net income (loss) – basic	$	10,253	$	(12,156	)	$	(6,371	)	$	(29,666	)
Change in fair value of warrant liability		—		(5,458	)		—			(8,046	)
Net income (loss) – diluted	$	10,253	$	(17,614	)	$	(6,371	)	$	(37,712	)

Share used in calculating net income (loss) per share was determined as follows (in thousands):


	Three Months Ended December 31,				Six Months Ended December 31,
	2022		2021		2022		2021
Weighted average shares used in calculating basic net income (loss) per share		133,261		126,725		133,258		115,982
Effect of potentially dilutive common shares from equity awards and liability-classified warrants		—		1,435		—		2,675
Weighted average shares used in calculating diluted net income (loss) per share		133,261		128,160		133,258		118,657

Our potentially dilutive shares, which include outstanding stock options, restricted stock units and warrants, are considered to be common stock equivalents and are only included in the calculation of diluted net income (loss) per share when their effect is dilutive.

The following table presents weighted average potentially dilutive shares that have been excluded from the calculation of net income (loss) per share because of their anti-dilutive effect (in thousands):


	Three Months Ended December 31,				Six Months Ended December 31,
	2022		2021		2022		2021
Stock options		27,452		20,460		27,606		20,671
Warrants		16,059		—		16,059		—
Restricted stock units		—		229		5		244
Total anti-dilutive shares		43,511		20,689		43,670		20,915