| SC 13G/A | 2018-06-08 | BlackRock Inc. | Northrop Grumman Innovation Systems, Inc. | 5,802,336 | 10.0% | EDGAR |
| SC 13G | 2018-02-13 | FMR LLC | ORBITAL ATK, INC. | 3,934,558 | 6.8% | EDGAR |
| SC 13G/A | 2018-02-09 | VANGUARD GROUP INC | ORBITAL ATK, INC. | 4,882,579 | 8.5% | EDGAR |
| SC 13G/A | 2018-02-08 | First Eagle Investment Management, LLC | ORBITAL ATK, INC. | 4,512,118 | 7.8% | EDGAR |
| SC 13G/A | 2018-01-23 | BlackRock Inc. | ORBITAL ATK, INC. | 5,567,694 | 9.7% | EDGAR |
| SC 13G/A | 2017-02-14 | FMR LLC | ORBITAL ATK, INC. | 1,036,341 | 1.8% | EDGAR |
| SC 13G/A | 2017-02-14 | LONDON CO OF VIRGINIA | ORBITAL ATK, INC. | 2,887,376 | 4.9% | EDGAR |
| SC 13G/A | 2017-02-10 | VANGUARD GROUP INC | ORBITAL ATK, INC. | 4,524,923 | 7.7% | EDGAR |
| SC 13G/A | 2017-02-07 | First Eagle Investment Management, LLC | ORBITAL ATK, INC. | 4,729,130 | 8.1% | EDGAR |
| SC 13G/A | 2017-01-25 | BlackRock Inc. | ORBITAL ATK, INC. | 4,717,486 | 8.1% | EDGAR |
| SC 13G/A | 2016-02-16 | DISCOVERY CAPITAL MANAGEMENT, LLC / CT | ORBITAL ATK, INC. | 0 | 0.0% | EDGAR |
| SC 13G/A | 2016-02-16 | Roystone Capital Management LP | ORBITAL ATK, INC. | 801,600 | 1.4% | EDGAR |
| SC 13G | 2016-02-12 | FMR LLC | ORBITAL ATK, INC. | 3,328,284 | 5.7% | EDGAR |
| SC 13G/A | 2016-02-11 | VANGUARD GROUP INC | ORBITAL ATK, INC. | 3,956,731 | 6.7% | EDGAR |
| SC 13G/A | 2016-02-10 | GOLDMAN SACHS ASSET MANAGEMENT, L.P. | ORBITAL ATK, INC. | 160,760 | 0.3% | EDGAR |
| SC 13G/A | 2016-02-09 | LONDON CO OF VIRGINIA | ORBITAL ATK, INC. | 3,250,264 | 5.5% | EDGAR |
| SC 13G/A | 2016-02-05 | First Eagle Investment Management, LLC | ORBITAL ATK, INC. | 3,360,061 | 5.7% | EDGAR |
| SC 13G/A | 2016-02-01 | GOLDMAN SACHS GROUP INC | ORBITAL ATK, INC. | 278,327 | 0.5% | EDGAR |
| SC 13G/A | 2016-01-27 | BlackRock Inc. | ORBITAL ATK, INC. | 4,254,079 | 7.2% | EDGAR |
| SC 13G/A | 2015-03-10 | BlackRock Inc. | ORBITAL ATK, INC. | 3,710,365 | 11.6% | EDGAR |