Stockholders' Equity (Tables)

12 Months Ended

May 31, 2023

The following table summarizes information about stock option activity for the fiscal year ended May 31, 2023:


	Shares	Weighted average exercise price		Weighted average remaining contractual life	Aggregate intrinsic value (in thousands)
Outstanding at beginning of year - June 1, 2022	2,346,248	$	17.13
Granted	187,826	$	21.54
Exercised	(47,824)	$	14.79
Forfeited	(79,701)	$	20.02
Expired	(200,000)	$	12.14
Outstanding at end of year - May 31, 2023	2,206,549	$	17.90	5.89	$	—
Options exercisable at year-end	1,408,208	$	17.12	4.77	$	—
Options expected to vest in future periods	798,341	$	19.28	7.86	$	—

The following table summarizes information about restricted stock unit activity for the year ended May 31, 2023:


	Restricted Stock Units	Weighted Average Grant-Date Fair Value
Non-vested at beginning of year, June 1, 2022	670,017	$	18.36
Granted	379,572	$	19.99
Vested	(275,007)	$	20.29
Canceled	(38,562)	$	19.28
Non-vested at end of year, May 31, 2023	736,020

The following table summarizes information about performance unit award activity for the year ended May 31, 2023:


	Performance Unit Awards	Weighted Average Grant-Date Fair Value
Non-vested at beginning of year, June 1, 2022	449,473	$	17.02
Granted	175,386	$	21.53
Vested	(45,008)	$	20.54
Canceled	(31,321)	$	20.16
Non-vested at end of year, May 31, 2023	548,530	$	19.23

The following tables represents the break out of stock-based compensation included in the Company's Consolidated Statement of Operations: