X0306 4 2019-05-23 0001133421 NORTHROP GRUMMAN CORP /DE/ NOC 0001216503 BUSH WESLEY G 2980 FAIRVIEW PARK DRIVE FALLS CHURCH VA 22042 1 1 Chairman Common Stock 2019-05-23 4 J 0 97449.0000 0.0000 A 97449.0000 D Common Stock 2019-05-23 4 J 0 1772.0000 0.0000 A 99221.0000 D Common Stock 2019-05-23 4 J 0 779.0000 0.0000 A 100000.0000 D Common Stock 2019-05-23 4 J 0 779.0000 0.0000 D 19256.6500 I Held in Bush Trust No. 4 Common Stock 2019-05-23 4 J 0 1772.0000 0.0000 D 17317.2500 I Held in Wesley G. Bush Rev. Trust Common Stock 2019-05-23 4 J 0 97449.0000 0.0000 D 109712.0000 I Held in WG&NF Bush Family Trust Common Stock 5659.8050 I Held in Northrop Grumman Savings & Investment Plan Transfer of shares from trust. Held in the Northrop Grumman Savings and Investment Plan (the "Plan"), a qualified profit sharing plan, as of May 23, 2019. Share totals with respect to the Plan are based upon unit accounting and therefore may reflect a change in units attributable to an individual though no acquisition or disposition occurred. /s/ Jennifer C. McGarey, Attorney-in-Fact 2019-05-28