| Filed On | Filing |
|---|---|
| 10 Feb 2010 | SC 13G |
| 11 Feb 2009 | SC 13G |
| 13 Feb 2008 | SC 13G |
| 10 Oct 2007 | SCHEDULE 13G |
| 14 Feb 2007 | SC 13G |
| 31 Jan 2007 | WELLS FARGO & COMPANY |
| 13 Nov 2006 | SCHEDULE 13G |
| 14 Feb 2006 | SC 13G |
| 24 Jan 2006 | SCHEDULE |
| 03 Jan 2006 | SC 13G |
| 06 Jun 2005 | SC 13G |
| 09 Feb 2005 | FORM 13G HOLDINGS REPORT |
| 20 Oct 2004 | SC 13G |
| 31 Aug 2004 | SC 13G |
| 14 Feb 2001 | SCHEDULE 13G - 02-14-01 - XOMA LIMITED |
| 09 Nov 1999 | SC 13G |
| 05 Feb 1996 | SCHEDULE 13G |
| 14 Feb 1995 | SC 13G |
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