Stockholders' Equity and Stock-Based Compensation Plans (Tables)

3 Months Ended

Mar. 31, 2014

Long-Term Incentive Plan [Member]

Fair Value of Liability Cash-Settled Stock Appreciation Rights

Under GAAP this element is determined to be share-based compensation and as such the fair value of these liability cash-settled stock appreciation rights is calculated on a quarterly basis. The fair value is calculated using a Monte Carlo model and is summarized as follows:


(in millions)	2014
Balance at January 1	$	0.0
Compensation charge for the period		0.1

Balance at March 31	$	0.1

Assumptions Used in the Monte Carlo Model

The following assumptions were used in the Monte Carlo model at March 31, 2014:


	2014
Dividend yield		1.11	%
Volatility of Innospec’s share price		36.0	%
Risk free interest rate		0.90	%

Stock Options Plan [Member]

Summary of Transactions of the Company's Stock Option Plans

The following table summarizes the transactions of the Company’s stock option plans for the three months ended March 31, 2014:


	Number of Options			Weighted Average Exercise Price		Weighted Average Grant-Date Fair Value
Outstanding at December 31, 2013		447,390		$	7.33
Granted—at discount		55,176		$	0.00	$	33.44
—at market value		21,542		$	46.03	$	14.18
Exercised		(43,770	)	$	6.16
Forfeited		(2,844	)	$	10.36

Outstanding at March 31, 2014		477,494		$	8.32

Stock Equivalent Units [Member]

Summarizes the Transactions of the SEUs

The following table summarizes the transactions of the Company’s SEUs for the three months ended March 31, 2014:


	Number of SEUs			Weighted Average Exercise Price		Weighted Average Grant-Date Fair Value
Outstanding at December 31, 2013		403,262		$	3.64
Granted—at discount		48,213		$	0.00	$	33.04
—at market value		7,147		$	46.03	$	14.18
Exercised		(141,600	)	$	5.52
Forfeited		(3,847	)	$	9.60

Outstanding at March 31, 2014		313,175		$	3.21