COMPX INTERNATIONAL INC — Director's Dealing 2012

May 18, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: COMPX INTERNATIONAL INC (CIX)
CIK: 0001049606
Period of Report: 2012-05-18

Reporting Person: SIMMONS HAROLD C (10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-05-18	Class A Common Stock $0.01 par value	J	100	$11.50	Acquired	55120	Indirect
2012-05-18	Class A Common Stock $0.01 par value	J	77	$11.59	Acquired	55197	Indirect
2012-05-18	Class A Common Stock $0.01 par value	J	884	$11.60	Acquired	56081	Indirect
2012-05-18	Class A Common Stock $0.01 par value	J	200	$11.74	Acquired	56281	Indirect
2012-05-18	Class A Common Stock $0.01 par value	J	100	$11.75	Acquired	56381	Indirect
2012-05-18	Class A Common Stock $0.01 par value	J	300	$11.88	Acquired	56681	Indirect
2012-05-18	Class A Common Stock $0.01 par value	J	100	$11.90	Acquired	56781	Indirect
2012-05-18	Class A Common Stock $0.01 par value	J	100	$11.95	Acquired	56881	Indirect
2012-05-18	Class A Common Stock $0.01 par value	J	200	$11.96	Acquired	57081	Indirect
2012-05-18	Class A Common Stock $0.01 par value	J	25	$12.00	Acquired	57106	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.