| Date | Time | Source | Headline | Symbol | Company |
| 12/11/2017 | 8:30AM | Business Wire | Orbital ATK Announces U.S. Air Force Contract for Long Duration Propulsive ESPA Spacecraft | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 12/06/2017 | 7:25PM | Business Wire | Orbital ATK Receives Second Request from Federal Trade Commission | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 12/06/2017 | 5:35PM | GlobeNewswire Inc. | Northrop Grumman Receives Second Request from FTC | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 12/06/2017 | 8:28AM | Business Wire | Orbital ATK’s Cygnus Spacecraft Departs International Space Station, Begins Secondary Mission in Space | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 12/04/2017 | 2:59PM | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 12/04/2017 | 2:58PM | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 12/04/2017 | 2:57PM | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 12/01/2017 | 9:00AM | Business Wire | Orbital ATK Achieves Major Development Milestone for Joint Polar Satellite System Program | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 11/30/2017 | 9:00AM | Business Wire | Orbital ATK Delivers Al Yah 3 Commercial Communications Satellite to Launch Site | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 11/29/2017 | 2:08PM | Edgar (US Regulatory) | Current Report Filing (8-k) | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 11/29/2017 | 10:30AM | GlobeNewswire Inc. | Orbital ATK Shareholders Vote to Approve Acquisition by Northrop Grumman | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 11/29/2017 | 10:09AM | Business Wire | Orbital ATK Stockholders Approve Acquisition by Northrop Grumman Corporation | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 11/20/2017 | 8:30AM | Business Wire | Orbital ATK Supports Launch of ULA’s Delta II Rocket | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 11/20/2017 | 6:05AM | Edgar (US Regulatory) | Additional Proxy Soliciting Materials (definitive) (defa14a) | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 11/14/2017 | 7:45AM | Business Wire | Orbital ATK’s Cygnus Successfully Completes Rendezvous and Berthing With International Space Station | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 11/12/2017 | 10:15AM | Business Wire | Orbital ATK Successfully Launches Eighth Cargo Delivery Mission to the International Space Station | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 11/10/2017 | 11:00AM | Business Wire | Orbital ATK Set to Launch Eighth Cargo Resupply Mission to the International Space Station | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 11/07/2017 | 11:56AM | Business Wire | Orbital ATK Successfully Tests First Motor Case for Next Generation Launch Vehicle | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 11/06/2017 | 4:09PM | Edgar (US Regulatory) | Additional Proxy Soliciting Materials (definitive) (defa14a) | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 11/02/2017 | 1:55PM | Edgar (US Regulatory) | Quarterly Report (10-q) | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 11/02/2017 | 8:30AM | Business Wire | Orbital ATK’s Board of Directors Declares Quarterly Cash Dividend | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 11/02/2017 | 6:03AM | Edgar (US Regulatory) | Current Report Filing (8-k) | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 11/02/2017 | 6:00AM | Business Wire | Orbital ATK Announces Third Quarter 2017 Financial Results | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 11/01/2017 | 8:30AM | Business Wire | Orbital ATK Demonstrates Tactical Solid Rocket Motor Manufactured Through Additive Manufacturing | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 10/31/2017 | 9:55PM | Business Wire | Orbital ATK Successfully Launches Minotaur C Rocket Carrying 10 Spacecraft to Orbit for Planet | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 10/30/2017 | 2:44PM | Business Wire | Orbital ATK Set to Launch Minotaur C Rocket Carrying SkySat and Dove Spacecraft for Planet | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 10/26/2017 | 10:01AM | Business Wire | Orbital ATK Raises $1.3 Million in Annual Employee United Way Campaign | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 10/25/2017 | 8:30AM | Business Wire | Orbital ATK Delivers 100,000th HELLFIRE Rocket Motor | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 10/25/2017 | 6:03AM | Edgar (US Regulatory) | Proxy Statement - Merger or Acquistion (definitive) (defm14a) | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 10/24/2017 | 8:30AM | Business Wire | Orbital ATK Awarded $24 Million Contract from Lockheed Martin for F-35 Composite Structures | NYSE:OA | Orbital Atk, Inc. (delisted) |