INNOSPEC INC. — Director's Dealing 2011

May 12, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: INNOSPEC INC. (IOSP)
CIK: 0001054905
Period of Report: 2011-05-12

Reporting Person: Cleminson Ian (Exec VP & CFO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-05-12	Common Stock	M	242	$27.085	Acquired	18941	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-05-12	Stock Options	$27.085	M	1354	Disposed	2017-02-21	Common stock (1354)	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 Ian Cleminson in lieu of the transfer of the remaining 1112 shares to enable him to pay the acquisition price obligations in respect of the exercise of options.