Net Income (Loss) Per Common Share Attributable to Alpha and Omega Semiconductor Limited (Tables)

12 Months Ended

Jun. 30, 2025

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The following table presents the calculation of basic and diluted net income (loss) per share:

	Year Ended June 30,
	2025		2024		2023
	(in thousands, except per share data)
Numerator:
Net income (loss)	$	(96,976)	$	(11,081)	$	12,364
Denominator:
Basic:
Weighted average number of common shares used to compute basic net income (loss) per share	29,405		28,236		27,552
Diluted:
Weighted average number of common shares used to compute basic net income (loss) per share	29,405		28,236		27,552
Effect of potentially dilutive securities:
Stock options, RSUs and ESPP shares	—		—		1,976
Weighted average number of common shares used to compute diluted net income (loss) per share	29,405		28,236		29,528
Net income (loss) per share:
Basic	$	(3.30)	$	(0.39)	$	0.45
Diluted	$	(3.30)	$	(0.39)	$	0.42

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The following potential dilutive securities were excluded from the computation of diluted net income (loss) per share as their effect would have been anti-dilutive:

	Year Ended June 30,
	2025	2024	2023
	(in thousands)
Employee stock options and RSUs	2,475	2,822	310
ESPP	629	1,019	309
Total potential dilutive securities	3,104	3,841	619