KRONOS WORLDWIDE INC — Director's Dealing 2012

May 29, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: KRONOS WORLDWIDE INC (KRO)
CIK: 0001257640
Period of Report: 2012-05-25

Reporting Person: SIMMONS GLENN R (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-05-25	Common Stock $0.01 par value	P	1900	$17.3597	Acquired	33362	Direct
2012-05-25	Common Stock $0.01 par value	P	5000	$17.4074	Acquired	38362	Direct
2012-05-25	Common Stock $0.01 par value	J	1100	$17.3597	Acquired	24434	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.