| 2007-05-07 | NightHawk Radiology Holdings Inc | S | ▼−1,000 sh | $18.45 | ▼−$18.5K | 2,583,517 |
| 2007-05-07 | NightHawk Radiology Holdings Inc | S | ▼−400 sh | $18.30 | ▼−$7,320 | 2,583,117 |
| 2007-05-07 | NightHawk Radiology Holdings Inc | S | ▼−1,500 sh | $18.25 | ▼−$27.4K | 2,581,617 |
| 2007-05-07 | NightHawk Radiology Holdings Inc | S | ▼−600 sh | $18.07 | ▼−$10.8K | 2,581,017 |
| 2007-05-07 | NightHawk Radiology Holdings Inc | S | ▼−300 sh | $18.05 | ▼−$5,415 | 2,580,717 |
| 2007-05-07 | NightHawk Radiology Holdings Inc | S | ▼−3,000 sh | $18.04 | ▼−$54.1K | 2,577,717 |
| 2007-05-07 | NightHawk Radiology Holdings Inc | S | ▼−1,000 sh | $18.01 | ▼−$18K | 2,576,717 |
| 2007-05-07 | NightHawk Radiology Holdings Inc | S | ▼−900 sh | $17.95 | ▼−$16.2K | 2,575,817 |
| 2007-05-07 | NightHawk Radiology Holdings Inc | S | ▼−500 sh | $17.92 | ▼−$8,960 | 2,575,317 |
| 2007-05-07 | NightHawk Radiology Holdings Inc | S | ▼−100 sh | $17.91 | ▼−$1,791 | 2,575,217 |
| 2007-05-07 | NightHawk Radiology Holdings Inc | S | ▼−3,000 sh | $17.88 | ▼−$53.6K | 2,572,217 |
| 2007-05-07 | NightHawk Radiology Holdings Inc | S | ▼−2,454 sh | $17.77 | ▼−$43.6K | 2,569,763 |
| 2007-04-23 | NightHawk Radiology Holdings Inc | S | ▼−1,400 sh | $20.30 | ▼−$28.4K | 2,597,871 |
| 2007-04-23 | NightHawk Radiology Holdings Inc | S | ▼−3,800 sh | $20.25 | ▼−$77K | 2,594,071 |
| 2007-04-23 | NightHawk Radiology Holdings Inc | S | ▼−1,400 sh | $20.15 | ▼−$28.2K | 2,592,671 |
| 2007-04-23 | NightHawk Radiology Holdings Inc | S | ▼−1,400 sh | $20.10 | ▼−$28.1K | 2,591,271 |
| 2007-04-23 | NightHawk Radiology Holdings Inc | S | ▼−200 sh | $20.01 | ▼−$4,002 | 2,591,071 |
| 2007-04-23 | NightHawk Radiology Holdings Inc | S | ▼−1,400 sh | $20.00 | ▼−$28K | 2,589,671 |
| 2007-04-23 | NightHawk Radiology Holdings Inc | S | ▼−600 sh | $19.97 | ▼−$12K | 2,589,071 |
| 2007-04-23 | NightHawk Radiology Holdings Inc | S | ▼−100 sh | $19.94 | ▼−$1,994 | 2,588,971 |
| 2007-04-23 | NightHawk Radiology Holdings Inc | S | ▼−900 sh | $19.93 | ▼−$17.9K | 2,588,071 |
| 2007-04-23 | NightHawk Radiology Holdings Inc | S | ▼−310 sh | $19.92 | ▼−$6,175.2 | 2,587,761 |
| 2007-04-23 | NightHawk Radiology Holdings Inc | S | ▼−3,244 sh | $19.85 | ▼−$64.4K | 2,584,517 |
| 2007-01-29 | NightHawk Radiology Holdings Inc | S | ▼−100 sh | $25.73 | ▼−$2,573 | 2,687,695 |
| 2007-01-29 | NightHawk Radiology Holdings Inc | S | ▼−400 sh | $25.70 | ▼−$10.3K | 2,687,295 |
| 2007-01-29 | NightHawk Radiology Holdings Inc | S | ▼−200 sh | $25.68 | ▼−$5,136 | 2,687,095 |
| 2007-01-29 | NightHawk Radiology Holdings Inc | S | ▼−400 sh | $25.67 | ▼−$10.3K | 2,686,695 |
| 2007-01-29 | NightHawk Radiology Holdings Inc | S | ▼−500 sh | $25.65 | ▼−$12.8K | 2,686,195 |
| 2007-01-29 | NightHawk Radiology Holdings Inc | S | ▼−97 sh | $25.64 | ▼−$2,487.08 | 2,686,098 |
| 2007-01-29 | NightHawk Radiology Holdings Inc | S | ▼−203 sh | $25.63 | ▼−$5,202.89 | 2,685,895 |
| 2007-01-29 | NightHawk Radiology Holdings Inc | S | ▼−400 sh | $25.62 | ▼−$10.2K | 2,685,495 |
| 2007-01-29 | NightHawk Radiology Holdings Inc | S | ▼−454 sh | $25.61 | ▼−$11.6K | 2,685,041 |
| 2007-01-29 | NightHawk Radiology Holdings Inc | S | ▼−400 sh | $25.60 | ▼−$10.2K | 2,684,641 |
| 2007-01-29 | NightHawk Radiology Holdings Inc | S | ▼−500 sh | $25.58 | ▼−$12.8K | 2,684,141 |
| 2007-01-29 | NightHawk Radiology Holdings Inc | S | ▼−700 sh | $25.55 | ▼−$17.9K | 2,683,441 |
| 2007-01-29 | NightHawk Radiology Holdings Inc | S | ▼−100 sh | $25.54 | ▼−$2,554 | 2,683,341 |
| 2007-01-29 | NightHawk Radiology Holdings Inc | S | ▼−300 sh | $25.53 | ▼−$7,659 | 2,683,041 |
| 2007-01-29 | NightHawk Radiology Holdings Inc | S | ▼−400 sh | $25.52 | ▼−$10.2K | 2,682,641 |
| 2007-01-29 | NightHawk Radiology Holdings Inc | S | ▼−600 sh | $25.51 | ▼−$15.3K | 2,682,041 |
| 2007-01-29 | NightHawk Radiology Holdings Inc | S | ▼−600 sh | $25.50 | ▼−$15.3K | 2,681,441 |
| 2007-01-29 | NightHawk Radiology Holdings Inc | S | ▼−1,000 sh | $25.48 | ▼−$25.5K | 2,680,441 |
| 2007-01-29 | NightHawk Radiology Holdings Inc | S | ▼−2,200 sh | $25.47 | ▼−$56K | 2,678,241 |
| 2007-01-29 | NightHawk Radiology Holdings Inc | S | ▼−100 sh | $25.46 | ▼−$2,546 | 2,678,141 |
| 2007-01-29 | NightHawk Radiology Holdings Inc | S | ▼−500 sh | $25.45 | ▼−$12.7K | 2,677,641 |
| 2007-01-29 | NightHawk Radiology Holdings Inc | S | ▼−800 sh | $25.44 | ▼−$20.4K | 2,676,841 |
| 2007-01-29 | NightHawk Radiology Holdings Inc | S | ▼−300 sh | $25.40 | ▼−$7,620 | 2,676,541 |
| 2007-01-29 | NightHawk Radiology Holdings Inc | S | ▼−8 sh | $25.39 | ▼−$203.12 | 2,676,533 |
| 2007-01-29 | NightHawk Radiology Holdings Inc | S | ▼−100 sh | $25.38 | ▼−$2,538 | 2,676,433 |
| 2007-01-29 | NightHawk Radiology Holdings Inc | S | ▼−200 sh | $25.37 | ▼−$5,074 | 2,676,233 |
| 2007-01-29 | NightHawk Radiology Holdings Inc | S | ▼−952 sh | $25.36 | ▼−$24.1K | 2,675,281 |