Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2017

Summary of ARRIS' Unvested Restricted Stock Unit (Excluding Performance Related)

The following table summarizes ARRIS’s unvested restricted stock unit (excluding performance-related) transactions during the year ending December 31, 2017:

	Ordinary Shares			Weighted Average Grant  Date Fair Value
Unvested at December 31, 2016		6,495,049		$	24.04
Granted		3,793,925			27.54
Vested		(2,571,398	)		22.98
Forfeited		(357,232	)		24.77
Unvested at December 31, 2017		7,360,344			26.18

The fair value of the restricted share units is estimated on the date of grant using a Monte Carlo Simulation model.

	Market Performance Shares			Weighted Average Grant Date Fair Value
Unvested at December 31, 2016		1,640,410		$	29.52
Granted		524,350			24.13
Vested		(211,689	)		41.12
Performance adjustment		(608,011	)		35.85
Unvested at December 31, 2017		1,345,060			22.73