INNOSPEC INC. — Director's Dealing 2013

May 10, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: INNOSPEC INC. (IOSP)
CIK: 0001054905
Period of Report: 2013-05-10

Reporting Person: BOON PHILIP JOHN (Exec VP, Business Operations)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-05-09	Common Stock	M	3019	$10.38	Disposed	30233	Direct
2013-05-09	Common Stock	F	1500	$42.2433	Disposed	28733	Direct
2013-05-09	Common Stock	M	11546	$0.00	Disposed	40279	Direct
2013-05-09	Common Stock	F	5738	$42.2433	Disposed	34541	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2013-05-09	Stock Options	$10.38	M	3019	Disposed	2020-03-17	Common Stock (3019)	Direct
2013-05-09	Stock Options	$0.00	M	11546	Disposed	2020-03-17	Common Stock (11546)	Direct

Footnotes

F1: Total includes options from other tranches with different exercise prices, vesting dates and expiration dates.

F2: Shares of Common Stock withheld to pay tax liability and acquisition price.

F3: Total includes options from other tranches with different exercise prices, vesting dates and expiration dates.

F4: Total includes options from other tranches with different exercise prices, vesting dates and expiration dates.

F5: Shares of Common Stock withheld to pay tax liability.

F6: Total includes options from other tranches with different exercise prices, vesting dates and expiration dates

F7: Total includes options from other tranches with different exercise prices, vesting dates and expiration dates

F8: Total includes options from other tranches with different exercise prices, vesting dates and expiration dates