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Stock-Based Compensation Plans (Tables)

6 Months Ended

Jun. 30, 2016

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	)			0.0
Balance at June 30		$	0.3			$	0.1

Assumptions Used in the Monte Carlo Model

The following assumptions were used in the Monte Carlo model at June 30:

		2016				2015
Dividend yield			1.39	%			1.29	%
Volatility of Innospec’s share price			24.99	%			24.38	%
Risk free interest rate			0.71	%			1.01	%

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 six months ended June 30, 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			56,046			$	0.00			$	36.13
- at market value			24,794			$	44.34			$	9.17
Exercised			(50,425	)		$	5.58			$	28.00
Forfeited			(18,539	)		$	18.52			$	23.32
Outstanding at June 30, 2016			679,315			$	20.22			$	20.44

Stock Equivalent Units [Member]

Summarizes Transactions of SEUs

The following table summarizes the transactions of the Company’s SEUs for the six months ended June 30, 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			(42,123	)		$	2.05			$	25.73
Forfeited			(8,980	)		$	4.41			$	30.73
Outstanding at June 30, 2016			299,616			$	4.19			$	32.89

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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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