X0508 4 2026-02-11 0 0001133421 NORTHROP GRUMMAN CORP /DE/ NOC 0001950117 ROEDER ROSHAN S 2980 FAIRVIEW PARK DRIVE FALLS CHURCH VA 22042 0 1 0 0 CVP & Pres. Mission Systems 0 Common Stock 2026-02-11 4 M 0 6476.48 0 A 6880.39 D Common Stock 2026-02-11 4 F 0 2968 678.83 D 3912.39 D Common Stock 115.5111 I Held in Northrop Grumman Savings Plan Restricted Performance Stock Rights 2026-02-11 4 A 0 5786.48 0 A Common Stock 5786.48 20650.48 D Restricted Stock Rights 2026-02-11 4 A 0 1701 0 A Common Stock 1701 8530 D Restricted Performance Stock Rights 2026-02-11 4 M 0 6476.48 0 D Common Stock 6476.48 14174 D Held in the Northrop Grumman Savings Plan (the "Plan"), a qualified defined contribution plan, as of February 11, 2026. 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 Restricted Performance Stock Right ("RPSR") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d). The RPSRs acquired include (i) 2,100.48 vested RPSRs with respect to the measurement period ended 12/31/25 acquired due to settlement of the RPSRs granted under the 2011 Long-Term Incentive Stock Plan ("2011 LTISP") on 2/16/23 that resulted in settlement at 148% of the target award; and (ii) 3,686 unvested RPSRs granted under the 2024 Long-Term Incentive Stock Plan (the "2024 LTISP") on 2/11/26 with a measurement period ending on 12/31/28. A total of 6,476.48 shares were issued in settlement of the 2023 RPSRs with a measurement period that ended 12/31/25, and the target award amount of 4,376 RPSRs was previously reported in connection with the grant of the 2023 RPSRs. Total amount includes (i) 6,476.48 vested RPSRs granted under the 2011 LTISP on 2/16/23 with a measurement period ended on 12/31/25; (ii) 5,133 RPSRs granted under the 2011 LTISP on 2/14/24 with a measurement period ending on 12/31/26; (iii) 5,355 RPSRs granted under the 2024 LTISP on 2/18/25 with a measurement period ending on 12/31/27; and (iv) 3,686 RPSRs granted under the 2024 LTISP on 2/11/26 with a measurement period ending on 12/31/28. Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares in Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock. The RSRs were granted under the 2024 LTISP on 2/11/26 and will vest on 2/12/29. Total amount includes (i) 2,017 RSRs granted under the 2011 LTISP on 2/16/23 that will vest on 2/17/26; (ii) 2,356 RSRs granted under the 2011 LTISP on 2/14/24 that will vest on 2/16/27; (iii) 2,456 RSRs granted under the 2024 LTISP on 2/18/25 that will vest on 2/18/28; and (iv) 1,701 RSRs granted under 2024 LTISP on 2/11/26 that will vest on 2/12/29. Total amount includes (i) 5,133 RPSRs granted under the 2011 LTISP on 2/14/24 with a measurement period ending on 12/31/26; (ii) 5,355 RPSRs granted under the 2024 LTISP on 2/18/25 with a measurement period ending on 12/31/27; and (iii) 3,686 RPSRs granted under the 2024 LTISP on 2/11/26 with a measurement period ending 12/31/28. /s/ Jennifer C. McGarey, Attorney-in-Fact 2026-02-13