NL INDUSTRIES INC — Director's Dealing 2011

Sep 23, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: NL INDUSTRIES INC (NL)
CIK: 0000072162
Period of Report: 2011-09-23

Reporting Person: SIMMONS HAROLD C (Director, Chairman of the Board & CEO, 10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-09-23	Common stock $0.125 par value	P	1205	$12.15	Acquired	364385	Indirect
2011-09-23	Common stock $0.125 par value	P	16	$12.28	Acquired	364401	Indirect
2011-09-23	Common stock $0.125 par value	P	5000	$12.30	Acquired	369401	Indirect
2011-09-23	Common stock $0.125 par value	P	25	$12.36	Acquired	369426	Indirect
2011-09-23	Common stock $0.125 par value	P	249	$12.39	Acquired	369675	Indirect
2011-09-23	Common stock $0.125 par value	P	5200	$12.40	Acquired	374875	Indirect
2011-09-23	Common stock $0.125 par value	P	200	$12.45	Acquired	375075	Indirect
2011-09-23	Common stock $0.125 par value	P	100	$12.46	Acquired	375175	Indirect
2011-09-23	Common stock $0.125 par value	P	14210	$12.50	Acquired	389385	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common stock $0.125 par value	40387531	Indirect
Common stock $0.125 par value	1052054	Direct
Common stock $0.125 par value	222100	Indirect
Common stock $0.125 par value	2000	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 Valhi, 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 TIMET Finance Management Company. See the Additional Information filed as Exhibit 99 to this statement for a description of the relationship to the reporting person.

F5: 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.