| Filed On | Filing |
|---|---|
| 13 Feb 2018 | ROBECO INVESTMENT MANAGEMENT INC. |
| 19 Nov 2015 | SC 13G |
| 13 Oct 2015 | SC 13G |
| 09 Jan 2014 | DAVIS SELECTED ADVISERS |
| 30 Jan 2013 | SC 13G |
| 09 Feb 2012 | SC 13G |
| 10 Feb 2011 | LH AS OF 12/31/10 |
| 11 Feb 2010 | SC 13G |
| 29 Jan 2010 | SC 13G |
| 06 Feb 2009 | SC 13G |
| 13 Feb 2008 | LH AS OF 12-31-07 |
| 14 Feb 2007 | 13G 12/31/06 LH |
| 11 Feb 2004 | JWS 13G FILING 12/31/03 |
| 14 Feb 2003 | SCHEDULE 13G |
| 08 Nov 2002 | SC 13G |
| 13 Feb 2002 | SC 13G |
| 04 Jan 2000 | SCHEDULE 13G |
| 12 Nov 1999 | SC 13G |
| 12 Feb 1999 | SCHEDULE 13G - 02-01-99 - LABORATORY CORPORATION OF |
| 09 Feb 1999 | 13G FILING |
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