COMPX INTERNATIONAL INC — Director's Dealing 2012

May 4, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: COMPX INTERNATIONAL INC (CIX)
CIK: 0001049606
Period of Report: 2012-05-04

Reporting Person: SIMMONS HAROLD C (10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-05-04	Class A Common Stock $0.01 par value	P	300	$12.28	Acquired	52113	Indirect
2012-05-04	Class A Common Stock $0.01 par value	P	285	$12.29	Acquired	52398	Indirect
2012-05-04	Class A Common Stock $0.01 par value	P	500	$12.2999	Acquired	52898	Indirect
2012-05-04	Class A Common Stock $0.01 par value	P	842	$12.30	Acquired	53740	Indirect
2012-05-04	Class A Common Stock $0.01 par value	P	300	$12.35	Acquired	54040	Indirect
2012-05-04	Class A Common Stock $0.01 par value	P	73	$12.3699	Acquired	54113	Indirect
2012-05-04	Class A Common Stock $0.01 par value	P	468	$12.37	Acquired	54581	Indirect
2012-05-04	Class A Common Stock $0.01 par value	P	20	$12.44	Acquired	54601	Indirect
2012-05-04	Class A Common Stock $0.01 par value	P	419	$12.45	Acquired	55020	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Class A Common Stock $0.01 par value	359065	Direct
Class A Common Stock $0.01 par value	755104	Indirect
Class A Common Stock $0.01 par value	3000	Indirect

Footnotes

F1: Open market purchase by the reporting person's spouse.

F2: Directly held by the reporting person's spouse. The reporting person disclaims beneficial ownership of any shares of the issuer's common stock that his spouse holds.

F3: Directly held by NL Industries, Inc. See the Additional Information filed as Exhibit 99 to this statement for a description of the relationship to the reporting person.

F4: Directly held by Kronos Worldwide, Inc. See the Additional Information filed as Exhibit 99 to this statement for a description of the relationship to the reporting person.