Stock Based Compensation (Tables)

3 Months Ended

Mar. 31, 2024

Summary of Stock Option Plans

A summary of activity under United’s stock option plans as of March 31, 2024, and the changes during the first three months of 2024 are presented below:

	Three Months Ended March 31, 2024
	Shares			Aggregate Intrinsic Value		Weighted Average
						Remaining Contractual Term (Yrs.)		Exercise Price
Outstanding at January 1, 2024		1,337,382						$	35.47
Exercised		(25,991	)						27.15
Forfeited or expired		(3,477	)						27.49
Outstanding at March 31, 2024		1,307,914		$	3,440		3.6	$	35.66
Exercisable at March 31, 2024		1,307,914		$	3,440		3.6	$	35.66

Changes to United's Restricted Common Shares

The following summarizes the changes to United’s nonvested restricted common shares for the period ended March 31, 2024:

	Shares			Weighted-Average Grant Date Fair Value Per Share
Nonvested at January 1, 2024		333,932		$	37.75
Granted		183,908			34.36
Vested		(187,258	)		36.60
Forfeited		(5,215	)		36.48
Nonvested at March 31, 2024		325,367		$	36.51

Status of United's Nonvested Stock Option Awards

The following table summarizes the status of United’s nonvested stock option awards during the first three months of 2024:

	Shares			Weighted-Average Grant Date Fair Value Per Share
Nonvested at January 1, 2024		56,526		$	5.65
Vested		(56,526	)		5.65
Forfeited or expired		0			0.00
Nonvested at March 31, 2024		0		$	0.00

Restricted Stock Units (RSUs) [Member]

Status of United's Nonvested Stock Option Awards

The following table summarizes the status of United’s nonvested RSUs during the first three months of 2024:

	Shares			Weighted-Average Grant Date Fair Value Per Share
Nonvested at January 1, 2024		363,502		$	37.53
Granted		254,592			32.80
Vested		(127,536	)		36.28
Forfeited or expired		(439	)		34.72
Nonvested at March 31, 2024		490,119		$	35.41