| Filed On | Filing |
|---|---|
| 14 Jul 2010 | SC 13D/A |
| 20 Apr 2010 | SC 13D/A |
| 24 Oct 2007 | SC 13D/A |
| 27 Sep 2007 | SC 13D/A |
| 02 Aug 2007 | SC 13D/A |
| 17 Jul 2007 | SC 13D/A |
| 16 Jul 2007 | SC 13D/A |
| 11 Jul 2007 | SC 13D/A |
| 02 Jul 2007 | SC 13D/A |
| 11 Jul 2003 | AMENDMENT NO. 1 TO SCHEDULE 13D |
| 26 Apr 2001 | SCHEDULE 13D/A |
| 08 Jan 2001 | SC 13D/A |
| 03 Jan 2001 | SCHEDULE 13D/A |
| 15 Nov 2000 | SCHEDULE 13D/A |
| 14 Apr 2000 | SC 13D/A |
| 24 Nov 1999 | GENZYME CORPORATION |
| 26 Feb 1999 | GENZYME TRANSGENICS CORPORATION |
| 14 Jan 1997 | SC 13D/A |
| 23 Dec 1996 | SC 13D/A |
| 18 Dec 1996 | SC 13D/A |
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