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Stock-Based Compensation Plans (Tables)

3 Months Ended

Mar. 31, 2016

Stock Options Plan [Member]

Summary of Transactions of 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, 2016:

		Number of Options				Weighted Average Exercise Price				Weighted Average Grant-Date Fair Value
Outstanding at December 31, 2015			667,439			$	19.87			$	20.19
Granted - at discount			54,642			$	0.00			$	35.91
- at market value			23,852			$	44.18			$	9.11
Exercised			(47,212	)		$	5.26			$	28.63
Forfeited			(10,832	)		$	13.82			$	1.00
Outstanding at March 31, 2016			687,889			$	20.23			$	20.37

Stock Equivalent Units [Member]

Summarizes Transactions of SEUs

The following table summarizes the transactions of the Company’s SEUs for the three months ended March 31, 2016:

		Number of SEUs				Weighted Average Exercise Price				Weighted Average Grant-Date Fair Value
Outstanding at December 31, 2015			279,750			$	3.79			$	31.72
Granted - at discount			63,653			$	0.00			$	35.71
- at market value			7,316			$	44.18			$	9.11
Exercised			(38,638	)		$	2.24			$	26.44
Forfeited			(3,310	)		$	11.97			$	28.48
Outstanding at March 31, 2016			308,771			$	4.07			$	32.70

Additional Exceptional Long-Term Incentive Plan [Member]

Summary of Fair Value of Balance Sheet Dates

The fair values at each of the balance sheet dates are summarized as follows:

(in millions)		2016				2015
Balance at January 1		$	1.0			$	0.1
Compensation (credit)/charge for the period			(0.7	)			0.1
Balance at March 31		$	0.3			$	0.2

Assumptions Used in the Monte Carlo Model

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

		2016				2015
Dividend yield			1.41	%			1.19	%
Volatility of Innospec’s share price			25.37	%			25.91	%
Risk free interest rate			0.87	%			0.89	%

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Tabular disclosure of share-based compensation plans that may be presented in a single table for outstanding, vested and expected to vest, and exercisable awards. The information that may be disclosed in this table may include, but is not limited to, number of shares, weighted average exercise price, weighted average remaining contractual life, and aggregate intrinsic value.

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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