| 2007-11-01 | NightHawk Radiology Holdings Inc | S | ▼−3,400 sh | $23.25 | ▼−$79.1K | 312,580 |
| 2007-11-01 | NightHawk Radiology Holdings Inc | S | ▼−7 sh | $23.24 | ▼−$162.68 | 312,573 |
| 2007-11-01 | NightHawk Radiology Holdings Inc | S | ▼−54 sh | $23.23 | ▼−$1,254.42 | 312,519 |
| 2007-11-01 | NightHawk Radiology Holdings Inc | S | ▼−1,639 sh | $23.21 | ▼−$38K | 310,880 |
| 2007-11-01 | NightHawk Radiology Holdings Inc | S | ▼−400 sh | $23.16 | ▼−$9,264 | 310,480 |
| 2007-11-01 | NightHawk Radiology Holdings Inc | S | ▼−7,250 sh | $23.15 | ▼−$168K | 303,230 |
| 2007-11-01 | NightHawk Radiology Holdings Inc | S | ▼−200 sh | $23.14 | ▼−$4,628 | 303,030 |
| 2007-11-01 | NightHawk Radiology Holdings Inc | S | ▼−341 sh | $23.13 | ▼−$7,887.33 | 302,689 |
| 2007-11-01 | NightHawk Radiology Holdings Inc | S | ▼−1,059 sh | $23.12 | ▼−$24.5K | 301,630 |
| 2007-11-01 | NightHawk Radiology Holdings Inc | S | ▼−3,400 sh | $23.08 | ▼−$78.5K | 298,230 |
| 2007-10-15 | NightHawk Radiology Holdings Inc | S | ▼−200 sh | $25.90 | ▼−$5,180 | 332,430 |
| 2007-10-15 | NightHawk Radiology Holdings Inc | S | ▼−200 sh | $25.79 | ▼−$5,158 | 332,230 |
| 2007-10-15 | NightHawk Radiology Holdings Inc | S | ▼−1,500 sh | $25.78 | ▼−$38.7K | 330,730 |
| 2007-10-15 | NightHawk Radiology Holdings Inc | S | ▼−100 sh | $25.53 | ▼−$2,553 | 330,630 |
| 2007-10-15 | NightHawk Radiology Holdings Inc | S | ▼−100 sh | $25.52 | ▼−$2,552 | 330,530 |
| 2007-10-15 | NightHawk Radiology Holdings Inc | S | ▼−1,500 sh | $25.50 | ▼−$38.3K | 329,030 |
| 2007-10-15 | NightHawk Radiology Holdings Inc | S | ▼−1,800 sh | $25.33 | ▼−$45.6K | 327,230 |
| 2007-10-15 | NightHawk Radiology Holdings Inc | S | ▼−400 sh | $25.31 | ▼−$10.1K | 326,830 |
| 2007-10-15 | NightHawk Radiology Holdings Inc | S | ▼−1,200 sh | $25.30 | ▼−$30.4K | 325,630 |
| 2007-10-15 | NightHawk Radiology Holdings Inc | S | ▼−207 sh | $25.00 | ▼−$5,175 | 325,423 |
| 2007-10-15 | NightHawk Radiology Holdings Inc | S | ▼−181 sh | $24.96 | ▼−$4,517.76 | 325,242 |
| 2007-10-15 | NightHawk Radiology Holdings Inc | S | ▼−1,773 sh | $24.95 | ▼−$44.2K | 323,469 |
| 2007-10-15 | NightHawk Radiology Holdings Inc | S | ▼−200 sh | $24.86 | ▼−$4,972 | 323,269 |
| 2007-10-15 | NightHawk Radiology Holdings Inc | S | ▼−550 sh | $24.85 | ▼−$13.7K | 322,719 |
| 2007-10-15 | NightHawk Radiology Holdings Inc | S | ▼−1,700 sh | $24.80 | ▼−$42.2K | 321,019 |
| 2007-10-15 | NightHawk Radiology Holdings Inc | S | ▼−2,946 sh | $24.77 | ▼−$73K | 318,073 |
| 2007-10-15 | NightHawk Radiology Holdings Inc | S | ▼−1,693 sh | $24.75 | ▼−$41.9K | 316,380 |
| 2007-10-15 | NightHawk Radiology Holdings Inc | S | ▼−1,500 sh | $24.68 | ▼−$37K | 315,980 |
| 2007-10-01 | NightHawk Radiology Holdings Inc | S | ▼−100 sh | $24.14 | ▼−$2,414 | 350,280 |
| 2007-10-01 | NightHawk Radiology Holdings Inc | S | ▼−1,794 sh | $24.13 | ▼−$43.3K | 348,486 |
| 2007-10-01 | NightHawk Radiology Holdings Inc | S | ▼−400 sh | $24.12 | ▼−$9,648 | 348,086 |
| 2007-10-01 | NightHawk Radiology Holdings Inc | S | ▼−2,400 sh | $24.11 | ▼−$57.9K | 345,686 |
| 2007-10-01 | NightHawk Radiology Holdings Inc | S | ▼−600 sh | $24.08 | ▼−$14.4K | 345,086 |
| 2007-10-01 | NightHawk Radiology Holdings Inc | S | ▼−2,256 sh | $24.05 | ▼−$54.3K | 342,830 |
| 2007-10-01 | NightHawk Radiology Holdings Inc | S | ▼−1,700 sh | $23.96 | ▼−$40.7K | 341,130 |
| 2007-10-01 | NightHawk Radiology Holdings Inc | S | ▼−200 sh | $23.88 | ▼−$4,776 | 340,930 |
| 2007-10-01 | NightHawk Radiology Holdings Inc | S | ▼−2,300 sh | $23.87 | ▼−$54.9K | 338,630 |
| 2007-10-01 | NightHawk Radiology Holdings Inc | S | ▼−2,600 sh | $23.86 | ▼−$62K | 336,030 |
| 2007-10-01 | NightHawk Radiology Holdings Inc | S | ▼−1,700 sh | $23.80 | ▼−$40.5K | 334,330 |
| 2007-10-01 | NightHawk Radiology Holdings Inc | S | ▼−1,700 sh | $23.77 | ▼−$40.4K | 332,630 |
| 2007-09-18 | NightHawk Radiology Holdings Inc | S | ▼−300 sh | $23.65 | ▼−$7,095 | 367,830 |
| 2007-09-18 | NightHawk Radiology Holdings Inc | S | ▼−2,000 sh | $23.60 | ▼−$47.2K | 365,830 |
| 2007-09-18 | NightHawk Radiology Holdings Inc | S | ▼−200 sh | $23.58 | ▼−$4,716 | 365,630 |
| 2007-09-18 | NightHawk Radiology Holdings Inc | S | ▼−1,950 sh | $23.57 | ▼−$46K | 363,680 |
| 2007-09-18 | NightHawk Radiology Holdings Inc | S | ▼−200 sh | $23.55 | ▼−$4,710 | 363,480 |
| 2007-09-18 | NightHawk Radiology Holdings Inc | S | ▼−800 sh | $23.54 | ▼−$18.8K | 362,680 |
| 2007-09-18 | NightHawk Radiology Holdings Inc | S | ▼−1,000 sh | $23.40 | ▼−$23.4K | 361,680 |
| 2007-09-18 | NightHawk Radiology Holdings Inc | S | ▼−2,700 sh | $23.35 | ▼−$63K | 358,980 |
| 2007-09-18 | NightHawk Radiology Holdings Inc | S | ▼−700 sh | $23.31 | ▼−$16.3K | 358,280 |
| 2007-09-18 | NightHawk Radiology Holdings Inc | S | ▼−4,300 sh | $23.30 | ▼−$100K | 353,980 |