Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2018

Schedule of Restricted Stock Unit Activity

Restricted stock unit activity for the three months ended March 31, 2018 is presented below (in thousands, except per share data):

				Weighted-
				Average
	Number of			Grant Date
	Shares			Fair Value
Unvested at December 31, 2017		509		$	37.59
Granted		12			39.14
Vested		(9	)		37.39
Forfeited		(17	)		37.62
Unvested at March 31, 2018		495		$	37.63

Schedule of Stock Option Activity

Stock option activity for the three months ended March 31, 2018 is presented below (in thousands, except per share data and contractual term):

				Weighted -		Weighted -
				Average		Average
				Exercise		Remaining		Aggregate
	Number			Price Per		Contractual		Intrinsic
	of Shares			Share		Term (in years)		Value
Outstanding at December 31, 2017		937		$	35.10
Granted		—			—
Exercised		(50	)		33.31
Forfeited		(12	)		35.02
Outstanding at March 31, 2018		875		$	35.21		5.75	$	5,465
Exercisable at March 31, 2018		625		$	35.17		5.16	$	3,924
Vested and expected to vest at March 31, 2018		875		$	35.21		5.75	$	5,465

Summary of Stock-Based Compensation Recorded in Expense Categories

Stock-based compensation was recorded in the following expense categories (in thousands):

	Three Months Ended
	March 31,
	2018		2017
Cost of services and fulfillment	$	1,020	$	1,197
Selling and marketing		244		162
General and administrative		699		690
Total	$	1,963	$	2,049

Shares Subject to Employee Stock Purchase Plan Valuation Assumptions

Forrester utilizes the Black-Scholes valuation model for estimating the fair value of shares subject to purchase under the employee stock purchase plan, which were valued using the following assumptions:

	Three Months Ended
	March 31,
	2018			2017
Average risk-free interest rate		1.92	%		0.88	%
Expected dividend yield		2.0	%		1.9	%
Expected life	0.5 Years			0.5 Years
Expected volatility		22	%		28	%
Weighted average fair value	$	8.49		$	8.49