INNOSPEC INC. — Director's Dealing 2012

May 21, 2012

SEC Form 4/A — Form 4/A

Issuer: INNOSPEC INC. (IOSP)
CIK: 0001054905
Period of Report: 2012-05-17

Reporting Person: Williams Patrick (Exec VP & President, Fuel Spec)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-05-16	Common Stock	S	3964	$28.74	Disposed	126373	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-05-16	Stock Options	$4.62	M	3964	Disposed	2019-03-24	Common Stock (3964)	Direct

Footnotes

F1: The shares of Common Stock sold by the Reporting Person and reported herein were sold at a range of between $29.0700 and $28.5524 per share. The sale price reported represents the weighted average sale price for the reported transaction and has been rounded to the nearest cent.

F2: Total includes trances in other options only.