INNOSPEC INC. — Director's Dealing 2011

May 18, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: INNOSPEC INC. (IOSP)
CIK: 0001054905
Period of Report: 2011-05-18

Reporting Person: Watt Brian (VP, Strategic Planning)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-05-18	Common Stock	M	1150	$9.9650	Acquired	11449	Direct
2011-05-18	Common Stock	M	555	$20.2300	Acquired	12004	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-05-18	Stock Options	$9.9650	M	1150	Disposed	2016-02-13	Common Stock (1150)	Direct
2011-05-18	Stock Options	$20.2300	M	1500	Disposed	2011-02-20	Common Stock (1500)	Direct

Footnotes

F1: Pursuant to Clause 16 of the Rules of the Innospec Inc Company Stock Option Plan A, a cash payment is being made to Brian Watt in lieu of the transfer of the remaining 945 shares to enable him to pay the acquisition price in respect of the exercise of options.