| Date | Time | Source | Headline | Symbol | Company |
| 02/22/2018 | 6:00AM | Business Wire | Orbital ATK Announces Fourth Quarter and Full Year 2017 Financial Results | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 02/13/2018 | 10:02AM | Edgar (US Regulatory) | Statement of Ownership (sc 13g) | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 02/12/2018 | 4:30PM | GlobeNewswire Inc. | Northrop Grumman Acquisition of Orbital ATK Approved by European Commission | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 02/12/2018 | 9:20AM | Business Wire | Orbital ATK to Report Fourth Quarter 2017 Financial Results on February 22 | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 02/09/2018 | 1:21PM | Edgar (US Regulatory) | Amended Statement of Ownership (sc 13g/a) | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 02/08/2018 | 1:20PM | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 02/08/2018 | 12:01PM | Edgar (US Regulatory) | Amended Statement of Ownership (sc 13g/a) | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 02/06/2018 | 6:33PM | Edgar (US Regulatory) | Annual Statement of Changes in Beneficial Ownership (5) | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 02/06/2018 | 6:29PM | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 02/06/2018 | 6:28PM | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 02/06/2018 | 6:27PM | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 02/06/2018 | 6:25PM | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 02/06/2018 | 6:24PM | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 02/06/2018 | 6:23PM | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 02/06/2018 | 6:23PM | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 02/06/2018 | 6:22PM | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 02/06/2018 | 6:21PM | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 02/01/2018 | 9:48AM | Business Wire | Orbital ATK-Built GovSat-1 Multi-Mission Satellite Successfully Launched | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 01/31/2018 | 5:25PM | Business Wire | Orbital ATK’s Board of Directors Declares Quarterly Cash Dividend | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 01/26/2018 | 10:23AM | Business Wire | Orbital ATK-Built Al Yah 3 Commercial Communications Satellite in Good Health | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 01/24/2018 | 8:30AM | Business Wire | Orbital ATK Contracted By U.S. Navy for Development of an Extended Range Upgrade to the Advanced Anti-Radiation Guided Missile | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 01/23/2018 | 5:17PM | Edgar (US Regulatory) | Amended Statement of Ownership (sc 13g/a) | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 01/23/2018 | 8:30AM | Business Wire | DARPA Selects Orbital ATK for Hypersonic Engine Research Project | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 01/17/2018 | 8:30AM | Business Wire | Orbital ATK Demonstrates Counter Unmanned Aerial Systems Technologies | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 01/08/2018 | 9:01AM | Business Wire | Orbital ATK Awarded Contract for Intelsat Communications Satellite | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 01/04/2018 | 4:13PM | Business Wire | Orbital ATK Signs Cooperative Agreement with U.S. Air Force Space and Missile Systems Center | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 01/04/2018 | 9:00AM | Business Wire | Orbital ATK Receives Order for Second In-Orbit Satellite Servicing Vehicle | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 01/03/2018 | 6:26PM | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 01/03/2018 | 8:53AM | Business Wire | Orbital ATK Signs $23 Million Full-Rate Production Contract for Hard Target Void Sensing Fuze | NYSE:OA | Orbital Atk, Inc. (delisted) |
| 12/18/2017 | 8:15AM | Business Wire | Orbital ATK’s Cygnus Spacecraft Successfully Concludes Eighth Cargo Supply Mission to the International Space Station | NYSE:OA | Orbital Atk, Inc. (delisted) |