| Type | Filed | Filer | Subject | Shares Owned | Percent Owned | |
|---|---|---|---|---|---|---|
| SC 13D/A | 2020-04-28 | CONTRAN CORP | KRONOS WORLDWIDE INC | 35,219,270 | 30.5% | EDGAR |
| SC 13D/A | 2019-09-04 | CONTRAN CORP | KRONOS WORLDWIDE INC | 35,219,270 | 30.4% | EDGAR |
| SC 13D/A | 2016-12-05 | CONTRAN CORP | KRONOS WORLDWIDE INC | 35,219,270 | 30.4% | EDGAR |
| SC 13D/A | 2015-12-02 | CONTRAN CORP | KRONOS WORLDWIDE INC | 35,219,270 | 30.4% | EDGAR |
| SC 13G/A | 2014-02-14 | AMERICAN INTERNATIONAL GROUP INC | KRONOS WORLDWIDE INC | 800 | 0.0% | EDGAR |
| SC 13D | 2014-02-04 | VALHI INC /DE/ | KRONOS WORLDWIDE INC | 35,219,270 | 30.4% | EDGAR |
| SC 13G | 2013-03-26 | AMERICAN INTERNATIONAL GROUP INC | KRONOS WORLDWIDE INC | 6,054,779 | 5.2% | EDGAR |
| SC 13G/A | 2013-02-06 | VALHI INC /DE/ | KRONOS WORLDWIDE INC | 35,219,270 | 30.4% | EDGAR |
| SC 13G/A | 2012-02-07 | VALHI INC /DE/ | KRONOS WORLDWIDE INC | 35,592,604 | 30.7% | EDGAR |
| SC 13G/A | 2011-02-09 | VALHI INC /DE/ | KRONOS WORLDWIDE INC | 17,696,302 | 30.5% | EDGAR |
| SC 13G/A | 2010-02-10 | VALHI INC /DE/ | KRONOS WORLDWIDE INC | 17,689,202 | 36.1% | EDGAR |
| SC 13G/A | 2009-02-11 | VALHI INC /DE/ | KRONOS WORLDWIDE INC | 17,595,635 | 35.9% | EDGAR |
| SC 13G/A | 2008-02-04 | VALHI INC /DE/ | KRONOS WORLDWIDE INC | 17,516,132 | 35.8% | EDGAR |
| SC 13G/A | 2007-02-09 | VALHI INC /DE/ | KRONOS WORLDWIDE INC | 17,516,132 | 35.8% | EDGAR |
| SC 13G/A | 2006-02-08 | VALHI INC /DE/ | KRONOS WORLDWIDE INC | 17,516,132 | 35.8% | EDGAR |
| SC 13G/A | 2005-02-04 | VALHI INC /DE/ | KRONOS WORLDWIDE INC | 3,985 | 0.0% | EDGAR |
| SC 13G | 2004-03-31 | VALHI INC /DE/ | KRONOS WORLDWIDE INC | 25,047,507 | 51.2% | EDGAR |