| Filed On | Filing |
|---|---|
| 02 Feb 2016 | 13G |
| 12 Feb 2015 | SIAL |
| 04 Feb 2015 | 13G |
| 13 Feb 2014 | 13G FILING |
| 04 Feb 2014 | SIAL |
| 12 Feb 2013 | SC 13G |
| 08 Feb 2013 | 13G FILING |
| 04 Feb 2013 | SC 13G |
| 30 Jan 2013 | SC 13G |
| 10 Feb 2011 | SC 13G |
| 12 Feb 2010 | SC 13G |
| 29 Jan 2010 | SC 13G |
| 11 Feb 2008 | SC 13G |
| 10 Feb 2006 | SC 13G |
| 15 Feb 2005 | SIGMA-ALDRICH |
| 14 Feb 2005 | SC 13G |
| 17 Feb 2004 | SC 13G |
| 18 Feb 2003 | SCHEDULE 13G |
| 30 Apr 2002 | SCHEDULE 13G |
| 14 Feb 2002 | SC 13G |
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