| 14 May 2004 | SALE | IMPAC MEDICAL SYSTEMS INC | 6,711 | 16.74 USD | |
| 14 May 2004 | SALE | IMPAC MEDICAL SYSTEMS INC | 544 | 17.79 USD | |
| 14 May 2004 | SALE | IMPAC MEDICAL SYSTEMS INC | 555 | 17.79 USD | |
| 14 May 2004 | SALE | IMPAC MEDICAL SYSTEMS INC | 4,910 | 19.36 USD | |
| 14 May 2004 | SALE | IMPAC MEDICAL SYSTEMS INC | 5,000 | 19.36 USD | |
| 31 Mar 2004 | PURCHASE | IMPAC MEDICAL SYSTEMS INC | 4,910 | 22.20 USD | |
| 01 Apr 2004 | PURCHASE | IMPAC MEDICAL SYSTEMS INC | 4,910 | 22.52 USD | |
| 01 Apr 2004 | PURCHASE | IMPAC MEDICAL SYSTEMS INC | 2,553 | 22.53 USD | |
| 11 Mar 2004 | PURCHASE | IMPAC MEDICAL SYSTEMS INC | 11,784 | 22.25 USD | |
| 12 Mar 2004 | PURCHASE | IMPAC MEDICAL SYSTEMS INC | 17,676 | 22.20 USD | |
| 15 Mar 2004 | PURCHASE | IMPAC MEDICAL SYSTEMS INC | 28,478 | 21.88 USD | |
| 12 Mar 2004 | PURCHASE | IMPAC MEDICAL SYSTEMS INC | 6,500 | 22.20 USD | |
| 02 Mar 2004 | PURCHASE | IMPAC MEDICAL SYSTEMS INC | 40,262 | 21.58 USD | |
| 02 Mar 2004 | PURCHASE | IMPAC MEDICAL SYSTEMS INC | 4,910 | 22.70 USD | |
| 03 Mar 2004 | PURCHASE | IMPAC MEDICAL SYSTEMS INC | 2,357 | 21.68 USD | |
| 02 Mar 2004 | PURCHASE | IMPAC MEDICAL SYSTEMS INC | 20,000 | 22.13 USD | |