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| Ticker | Owner | Relationship | Date | Transaction | Cost | #Shares | Value ($) | #Shares Total | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| XOMA | Hughes Owen | Chief Executive Officer | Apr 20 '26 | Option Exercise | 0.00 | 21,136 | 0 | 191,264 | Apr 22 12:00 AM |
| XOMA | Hughes Owen | Chief Executive Officer | Dec 04 '25 | Buy | 25.05 | 100,000 | 2,505,000 | 102,000 | Dec 08 12:00 AM |
| XOMA | Hughes Owen | Chief Executive Officer | Sep 19 '25 | Option Exercise | 0.00 | 71,134 | 0 | 132,714 | Sep 23 12:00 AM |
| XOMA | Hughes Owen | Chief Executive Officer | May 20 '25 | Sale | 25.38 | 25,637 | 650,667 | 62,701 | May 21 12:00 AM |
| XOMA | Hughes Owen | Chief Executive Officer | May 19 '25 | Option Exercise | 0.00 | 106,718 | 0 | 168,281 | May 21 12:00 AM |
| XOMA | Hughes Owen | Chief Executive Officer | Nov 13 '24 | Sale | 29.95 | 21,881 | 655,336 | 34,979 | Nov 13 12:00 AM |
| XOMA | Hughes Owen | Chief Executive Officer | Nov 11 '24 | Option Exercise | 0.00 | 106,720 | 0 | 221,640 | Nov 13 12:00 AM |
| XOMA | Hughes Owen | Exec Chairman and Interim CEO | Oct 02 '23 | Buy | 13.83 | 1,000 | 13,830 | 3,500 | Oct 04 12:00 AM |
| XOMA | Hughes Owen | Exec Chairman and Interim CEO | Sep 26 '23 | Buy | 14.43 | 2,499 | 36,061 | 2,500 | Sep 27 12:00 AM |
| XOMA | Hughes Owen | Exec Chairman and Interim CEO | Sep 25 '23 | Buy | 14.65 | 1 | 15 | 1 | Sep 27 12:00 AM |
| XOMA | Hughes Owen | Interim CEO | May 24 '23 | Buy | 23.79 | 1,032 | 24,551 | 2,000 | May 25 12:00 AM |
| XOMA | Hughes Owen | Interim CEO | May 23 '23 | Buy | 23.46 | 968 | 22,706 | 968 | May 25 12:00 AM |
| CGEM | Hughes Owen | President and CEO | Jan 12 '21 | Buy | 21.00 | 2,500 | 52,500 | 506,226 | Jan 14 12:00 AM |