FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL OMB Number: 3235-0287 Expires: January 31, 2005 Estimated average burden hours per response... 0.5

(Print or Type Responses)

1. Name and Address of Reporting Person * BRACEWELL Mark   2. Issuer Name and Ticker or Trading Symbol INNOSPEC INC. [IOSP] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner _____ Officer (give title below) __X__ Other (specify below) Group Financial Controller (Last) (First) (Middle) 8375 SOUTH WILLOW STREET 3. Date of Earliest Transaction (Month/Day/Year) 05/24/2012 (Street) LITTLETON, CO 80124 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 05/24/2012 05/24/2012 M   300 (1) A $ 0 1,760 D   Common Stock 05/24/2012 05/24/2012 M   1,225 (2) D $ 0 3,015 D   Common Stock 05/24/2012 05/24/2012 M   634 (3) D $ 0 3,649 D

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
	Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.		SEC 1474 (9-02)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Stock Options

$ 0

05/24/2012

05/24/2012

M

625

02/20/2011

02/20/2018

Common Stock

625

$ 0

12,402

D

Stock Options

$ 0

05/24/2012

05/24/2012

M

2,616

03/24/2012

03/24/2019

Common Stock

2,616

$ 0

9,786

D

Stock Options

$ 0

05/24/2012

05/24/2012

M

1,320

02/13/2011

02/03/2016

Common Stock

1,320

$ 0

8,466

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
BRACEWELL Mark 8375 SOUTH WILLOW STREET LITTLETON, CO 80124				Group Financial Controller

Signatures

Nicola Earl		05/24/2012
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Pursuant to Clause 12 of the rules of the Innospec Inc Performance Related Stock Option Plan, a cash payment is being made to the Reporting Person in lieu of the transfer of the remaining 325 shares to enable him to pay UK withholding tax obligations in respect of the exercise of options.
(2)	Pursuant to Clause 12 of the rules of the Innospec Inc Performance Related Stock Option Plan, a cash payment is being made to the Reporting Person in lieu of the transfer of the remaining 1361 shares to enable him to pay UK withholding tax obligations in respect of the exercise of options.
(3)	Pursuant to Clause 12 of the rules of the Innospec Inc Performance Related Stock Option Plan, a cash payment is being made to the Reporting Person in lieu of the transfer of the remaining 686 shares to enable him to pay UK withholding tax obligations in respect of the exercise of options.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.