KRONOS WORLDWIDE INC — Director's Dealing 2012

May 17, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: KRONOS WORLDWIDE INC (KRO)
CIK: 0001257640
Period of Report: 2012-05-17

Reporting Person: WATSON STEVEN L (Director, Vice Chair. of the Board & CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-05-17	Common Stock $0.01 par value	P	1000	$16.98	Acquired	113152	Direct
2012-05-17	Common Stock $0.01 par value	P	1000	$17.00	Acquired	114152	Direct
2012-05-17	Common Stock $0.01 par value	P	1000	$17.10	Acquired	115152	Direct
2012-05-17	Common Stock $0.01 par value	P	1000	$17.15	Acquired	116152	Direct
2012-05-17	Common Stock $0.01 par value	P	1000	$17.25	Acquired	117152	Direct
2012-05-17	Common Stock $0.01 par value	P	1000	$17.50	Acquired	118152	Direct
2012-05-17	Common Stock $0.01 par value	P	1000	$17.75	Acquired	119152	Direct
2012-05-17	Common Stock $0.01 par value	P	1000	$18.00	Acquired	120152	Direct
2012-05-17	Common Stock $0.01 par value	P	1000	$18.25	Acquired	121152	Direct
2012-05-17	Common Stock $0.01 par value	P	1000	$18.40	Acquired	122152	Direct
2012-05-17	Common Stock $0.01 par value	P	1000	$18.50	Acquired	123152	Direct