X0306 4 2019-10-30 0001133421 NORTHROP GRUMMAN CORP /DE/ NOC 0001682425 Addison Ann M 2980 FAIRVIEW PARK DRIVE FALLS CHURCH VA 22042 1 Corp VP & Chief HR Officer Common Stock 2019-10-30 4 M 0 5146.0000 0.0000 A 5146.0000 D Common Stock 2019-10-30 4 F 0 2398.0000 354.0800 D 2748.0000 D Common Stock 64.2947 I Held in Northrop Grumman Savings & Investment Plan Restricted Stock Rights 2019-10-30 4 M 0 5146.0000 0.0000 D Common Stock 5146.0000 2642.0000 D Shares issued upon vesting of Restricted Stock Rights ("RSRs") granted under the 2011 Long-Term Incentive Stock Plan ("LTISP") on 10/30/18 that vested on 10/30/19. Shares surrendered to issuer in payment of tax liability in connection with vesting of RSRs in accordance with Rule 16b-3(e). Held in the Northrop Grumman Savings and Investment Plan (the "Plan"), a qualified profit sharing plan, as of October 30, 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. Each RSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock. Total amount includes 1,751 RSRs granted under the LTISP on 2/13/19 that will vest on 2/13/22; and 891 RSRs granted under the LTISP on 10/30/18 that will vest on 10/30/21. /s/ Jennifer C. McGarey, Attorney-in-Fact 2019-11-01