| Date | Time | Source | Headline | Symbol | Company |
| 09/27/2010 | 7:17PM | Business Wire | The Law Office of Robbins Umeda LLP Announces an Investigation of the Acquisition of NightHawk Radiology Holdings, Inc. by Vi... | NASDAQ:NHWK | Nighthawk Radiology Holdings, Inc. (MM) |
| 09/27/2010 | 5:32PM | Business Wire | CORRECTING & REPLACING Shareholder Alert: Faruqi & Faruqi, LLP Announces Investigation Related to the Acquisition of NightHaw... | NASDAQ:NHWK | Nighthawk Radiology Holdings, Inc. (MM) |
| 09/27/2010 | 5:23PM | Edgar (US Regulatory) | Additional Proxy Soliciting Materials (definitive) (DEFA14A) | NASDAQ:NHWK | Nighthawk Radiology Holdings, Inc. (MM) |
| 09/27/2010 | 5:21PM | Edgar (US Regulatory) | Current report filing (8-K) | NASDAQ:NHWK | Nighthawk Radiology Holdings, Inc. (MM) |
| 09/27/2010 | 5:19PM | Edgar (US Regulatory) | Additional Proxy Soliciting Materials (definitive) (DEFA14A) | NASDAQ:NHWK | Nighthawk Radiology Holdings, Inc. (MM) |
| 09/27/2010 | 5:00PM | Business Wire | Ryan & Maniskas, LLP Announces Investigation of NightHawk Radiology Holdings, Inc. | NASDAQ:NHWK | Nighthawk Radiology Holdings, Inc. (MM) |
| 09/27/2010 | 4:26PM | Business Wire | Shareholder Alert: Faruqi & Faruqi, LLP Announces Investigation Related to the Acquisition of NightHawk Radiology Holdings, I... | NASDAQ:NHWK | Nighthawk Radiology Holdings, Inc. (MM) |
| 09/27/2010 | 3:59PM | Business Wire | Law Office of Brodsky & Smith, LLC Announces Investigation of NightHawk Radiology Holdings, Inc. | NASDAQ:NHWK | Nighthawk Radiology Holdings, Inc. (MM) |
| 09/27/2010 | 3:01PM | Business Wire | Shareholder Alert: Powers Taylor Law Firm Investigates NightHawk Radiology Holdings’ Board Concerning the Acquisition by Vi... | NASDAQ:NHWK | Nighthawk Radiology Holdings, Inc. (MM) |
| 09/27/2010 | 2:35PM | Business Wire | Levi & Korsinsky, LLP Launches an Investigation into the Possible Breaches of Fiduciary Duty by the Board of NightHawk Radiol... | NASDAQ:NHWK | Nighthawk Radiology Holdings, Inc. (MM) |
| 09/27/2010 | 11:50AM | Business Wire | Kendall Law Group Investigates NightHawk Radiology Holdings Acquisition for Shareholders | NASDAQ:NHWK | Nighthawk Radiology Holdings, Inc. (MM) |
| 09/27/2010 | 8:00AM | PR Newswire (US) | Virtual Radiologic and NightHawk Radiology Announce Merger | NASDAQ:NHWK | Nighthawk Radiology Holdings, Inc. (MM) |
| 09/09/2010 | 4:09PM | Edgar (US Regulatory) | Current report filing (8-K) | NASDAQ:NHWK | Nighthawk Radiology Holdings, Inc. (MM) |
| 09/08/2010 | 4:01PM | GlobeNewswire Inc. | NightHawk Radiology Holdings, Inc. to Speak at the Morgan Stanley Global Healthcare Conference September 13, 2010 | NASDAQ:NHWK | Nighthawk Radiology Holdings, Inc. (MM) |
| 08/31/2010 | 8:10AM | GlobeNewswire Inc. | NightHawk Posts Report Card From Independent Research Firm's Survey of 355 Customers Serving Nearly 800 Sites | NASDAQ:NHWK | Nighthawk Radiology Holdings, Inc. (MM) |
| 08/24/2010 | 8:10AM | GlobeNewswire Inc. | NightHawk Unveils an Indispensable Resource for Radiologists -- the "BlackBook of Radiology" | NASDAQ:NHWK | Nighthawk Radiology Holdings, Inc. (MM) |
| 08/12/2010 | 8:10AM | GlobeNewswire Inc. | NightHawk Radiology Launches Client Peer Review Program | NASDAQ:NHWK | Nighthawk Radiology Holdings, Inc. (MM) |
| 08/06/2010 | 6:07AM | Edgar (US Regulatory) | Quarterly Report (10-Q) | NASDAQ:NHWK | Nighthawk Radiology Holdings, Inc. (MM) |
| 08/05/2010 | 4:03PM | Edgar (US Regulatory) | Current report filing (8-K) | NASDAQ:NHWK | Nighthawk Radiology Holdings, Inc. (MM) |
| 08/05/2010 | 4:01PM | GlobeNewswire Inc. | NightHawk Radiology Holdings, Inc. Announces Second Quarter 2010 Results | NASDAQ:NHWK | Nighthawk Radiology Holdings, Inc. (MM) |
| 07/22/2010 | 4:02PM | GlobeNewswire Inc. | NightHawk Radiology Holdings, Inc. to Host Conference Call to Discuss Second Quarter 2010 Earnings Results | NASDAQ:NHWK | Nighthawk Radiology Holdings, Inc. (MM) |
| 07/06/2010 | 6:03AM | Edgar (US Regulatory) | Current report filing (8-K) | NASDAQ:NHWK | Nighthawk Radiology Holdings, Inc. (MM) |
| 06/30/2010 | 4:09PM | GlobeNewswire Inc. | Nighthawk Announces Completion of Settlement Transaction With St. Paul Radiology, P.A. | NASDAQ:NHWK | Nighthawk Radiology Holdings, Inc. (MM) |
| 06/17/2010 | 5:01PM | Edgar (US Regulatory) | Statement of Ownership (SC 13G) | NASDAQ:NHWK | Nighthawk Radiology Holdings, Inc. (MM) |
| 06/16/2010 | 6:02AM | Edgar (US Regulatory) | Current report filing (8-K) | NASDAQ:NHWK | Nighthawk Radiology Holdings, Inc. (MM) |
| 06/03/2010 | 12:38PM | GlobeNewswire Inc. | NightHawk Launches New Corporate Website | NASDAQ:NHWK | Nighthawk Radiology Holdings, Inc. (MM) |
| 06/01/2010 | 6:52PM | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | NASDAQ:NHWK | Nighthawk Radiology Holdings, Inc. (MM) |
| 06/01/2010 | 6:52PM | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | NASDAQ:NHWK | Nighthawk Radiology Holdings, Inc. (MM) |
| 06/01/2010 | 6:52PM | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | NASDAQ:NHWK | Nighthawk Radiology Holdings, Inc. (MM) |
| 06/01/2010 | 4:59PM | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | NASDAQ:NHWK | Nighthawk Radiology Holdings, Inc. (MM) |