| Filed On | Filing |
|---|---|
| 16 Feb 2016 | SC 13G |
| 10 Feb 2015 | SC 13G |
| 10 Feb 2012 | SC 13G |
| 10 Feb 2010 | SC 13G |
| 29 Jan 2010 | SC 13G |
| 05 Feb 2008 | SC 13G |
| 05 Feb 2008 | SC 13G |
| 05 Feb 2008 | SC 13G |
| 05 Feb 2008 | SC 13G |
| 05 Feb 2008 | SC 13G |
| 05 Feb 2008 | SC 13G |
| 13 Feb 2007 | SCHEDULE 13G |
| 10 Feb 2006 | SC 13G |
| 17 Feb 2004 | UNION PACIFIC CORP 13G |
| 10 Feb 2004 | SC 13G |
| 14 Feb 2001 | SCHEDULE 13G - 02-14-01 - UNION PACIFIC CORPORATION |
| 12 Feb 2001 | SCHEDULE 13G |
| 08 Feb 2000 | SC 13G |
| 09 Aug 1999 | SC 13G |
| 23 Feb 1999 | SC 13G |
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