KRONOS WORLDWIDE INC — Director's Dealing 2011

Dec 29, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: KRONOS WORLDWIDE INC (KRO)
CIK: 0001257640
Period of Report: 2011-12-29

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-12-29	Common Stock $0.01 par value	P	100	$17.985	Acquired	533540	Direct
2011-12-29	Common Stock $0.01 par value	P	3200	$17.99	Acquired	536740	Direct
2011-12-29	Common Stock $0.01 par value	P	6700	$18.00	Acquired	543440	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock $0.01 par value	57990042	Indirect
Common Stock $0.01 par value	35219270	Indirect
Common Stock $0.01 par value	373334	Indirect
Common Stock $0.01 par value	545276	Indirect
Common Stock $0.01 par value	5372	Indirect

Footnotes

F1: 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.

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 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.

F4: Directly held by the reporting person's wife. The reporting person disclaims beneficial ownership of, and a pecuniary interest in, any shares of the issuer's common stock that his wife holds.

F5: Directly held by Contran Corporation. See the Additional Information filed as Exhibit 99 to this statement for a description of the relationship to the reporting person.