| SC 13G | 2008-02-05 | BARCLAYS GLOBAL INVESTORS NA /CA/ | XOMA LTD /DE/ | 3,546,712 | 2.7% | EDGAR |
| SC 13G | 2008-02-05 | BARCLAYS GLOBAL INVESTORS NA /CA/ | XOMA LTD /DE/ | 3,546,712 | 2.7% | EDGAR |
| SC 13G/A | 2008-01-30 | ORBIMED ADVISORS LLC | XOMA LTD /DE/ | 3,285,260 | 2.5% | EDGAR |
| SC 13G/A | 2007-02-28 | QVT Financial LP | XOMA LTD /DE/ | 6,566,253 | 6.5% | EDGAR |
| SC 13G/A | 2007-02-13 | QVT Financial LP | XOMA LTD /DE/ | 6,218,832 | 5.8% | EDGAR |
| SC 13G/A | 2005-04-11 | CITIGROUP INC | XOMA LTD /DE/ | 0 | 0.0% | EDGAR |
| SC 13G/A | 2005-02-14 | CITIGROUP INC | XOMA LTD /DE/ | 4,715,800 | 5.5% | EDGAR |
| SC 13G | 2004-02-17 | CITIGROUP INC | XOMA LTD /DE/ | 5,187,020 | 6.2% | EDGAR |