COMPX INTERNATIONAL INC — Director's Dealing 2011

May 31, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: COMPX INTERNATIONAL INC (CIX)
CIK: 0001049606
Period of Report: 2011-05-27

Reporting Person: SIMMONS HAROLD C (10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-05-27	Class A Common Stock $0.01 par value	P	1584	$13.65	Acquired	354238	Direct
2011-05-27	Class A Common Stock $0.01 par value	P	100	$13.6499	Acquired	354338	Direct
2011-05-27	Class A Common Stock $0.01 par value	P	15	$13.64	Acquired	354353	Direct
2011-05-27	Class A Common Stock $0.01 par value	P	200	$13.63	Acquired	354553	Direct
2011-05-27	Class A Common Stock $0.01 par value	P	100	$13.62	Acquired	354653	Direct
2011-05-27	Class A Common Stock $0.01 par value	P	1	$13.50	Acquired	354654	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Class A Common Stock $0.01 par value	26400	Indirect
Class A Common Stock $0.01 par value	755104	Indirect
Class A Common Stock $0.01 par value	3000	Indirect

Footnotes

F1: Directly held by the reporting person's wife. The reporting person disclaims beneficial ownership of any shares of the issuer's class A common stock that his wife holds.

F2: 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.

F3: Directly held by Kronos Worldwide, Inc. See the Additional Information filed as Exhibit 99 to this statement for a description of the relationship among the persons joining in this filing.