Other Information
−Removed: Consistent with Item 408 of Regulation S-K, the following table reflects Rule 10b5-1 trading arrangements and non-Rule 10b5-1 trading arrangements (as defined in Item 408) entered into by any director or officer (as defined in Rule 16a-1(f) of the Exchange Act) during the quarter ended September 30, 2025.
−Removed: (Title) Type of Trading Arrangement Date of Adoption
−Removed: Expiration Date of Trading Arrangement
+Added: Consistent with Item 408 of Regulation S-K, the following table reflects Rule 10b5-1 trading arrangements and non-Rule 10b5-1 trading arrangements (as defined in Item 408) entered into by any director or officer (as defined in Rule 16a-1(f) of the Exchange Act) during the quarter ended March 31, 2026.
+Added: (Title) Type of Trading Arrangement Date of Adoption Expiration Date of Trading Arrangement
Aggregate Number of Securities to Be Purchased or Sold
−Removed: Rule 10b5-1 Trading Arrangement September 2, 2025 February 2, 2026 or such earlier date upon the completion of all trades under the plan or the occurrence of such other termination events as specified in the plan.
+Added: Warden Rule 10b5-1 Trading Arrangement February 13, 2026 January 29, 2027 or such earlier date upon the completion of all trades under the plan or the occurrence of such other termination events as specified in the plan.
Sale of 25,000 shares of common stock
(Chair, Chief Executive Officer and President)
−Removed: Rule 10b5-1 Trading Arrangement August 23, 2025 August 7, 2026 or such earlier date upon the completion of all trades under the plan or the occurrence of such other termination events as specified in the plan.
+Added: Rule 10b5-1 Trading Arrangement February 20, 2026 March 12, 2027 or such earlier date upon the completion of all trades under the plan or the occurrence of such other termination events as specified in the plan.
Sale of 1,036 shares of common stock
+Added: Sale of shares to be received upon payout of 2024 RSRs and RPSRs (1)
+Added: (Corporate Vice President, Controller, and Chief Accounting Officer)
+Added: Rule 10b5-1 Trading Arrangement February 25, 2026 February 5, 2027 or such earlier date upon the completion of all trades under the plan or the occurrence of such other termination events as specified in the plan.
+Added: Gift of 526 shares
+Added: Sale of shares received upon payout of 2023 RSRs and RPSRs
+Added: (Corporate Vice President and President, Aeronautics Systems Sector)
+Added: (1) The aggregate number of shares to be sold will depend, in part, on future company performance.
NORTHROP GRUMMAN CORPORATION
−Removed: Credit Agreement, dated as of September 2, 2025, among Northrop Grumman Corporation, the lenders party thereto and JPMorgan Chase Bank, N.A., as administrative agent (incorporated by reference to Exhibit 10.1 to Form 8-K filed September 2, 2025, File No.
+Added: 2026 Restricted Stock Rights Grant Agreement Specifying Terms and Conditions Applicable to 2026 Restricted Stock Rights Granted under the 2024 Long-Term Incentive Stock Plan
+Added: 2026 Restricted Performance Stock Rights Grant Agreement Specifying Terms and Conditions Applicable to 2026 Restricted Performance Stock Rights Granted Under the 2024 Long-Term Incentive Stock Plan
+Added: 2026 Restricted Stock Rights Grant Agreement Specifying Terms and Conditions Applicable to 2026 Restricted Stock Rights Granted to Kathy J.
+Added: Warden under the 2024 Long-Term Incentive Stock Plan
+Added: 2026 Restricted Performance Stock Rights Grant Agreement Specifying Terms and Conditions Applicable to 2026 Restricted Performance Stock Rights Granted to Kathy J.
+Added: Warden under the 2024 Long-Term Incentive Stock Plan
+Added: Special 2026 Restricted Stock Rights Grant Agreement Specifying Terms and Conditions Applicable to 2026 Restricted Stock Rights Granted to John T.
+Added: Greene Under the 2024 Long-Term Incentive Stock Plan
+Added: Group Personal Excess Liability Policy, effective as of January 1, 202 6
+Added: *+10.7 Form of Indemnification Agreement between Northrop Grumman Corporation and its directors and executive officers
*15 Letter from Independent Registered Public Accounting Firm
1 unchanged sentence
Warden pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
−Removed: *31.2 Certification of Kenneth B.
−Removed: Crews pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
+Added: *31.2 Certification of John T.
+Added: Greene pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
**32.1 Certification of Kathy J.
Warden pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
−Removed: **32.2 Certification of Kenneth B.
−Removed: Crews pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
−Removed: *101 Northrop Grumman Corporation Quarterly Report on Form 10-Q for the quarter ended September 30, 2025, formatted as inline XBRL (Extensible Business Reporting Language):
+Added: **32.2 Certification of John T.
+Added: Greene pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
+Added: *101 Northrop Grumman Corporation Quarterly Report on Form 10-Q for the quarter ended March 31, 2026, formatted as inline XBRL (Extensible Business Reporting Language):
(i) the Cover Page, (ii) Condensed Consolidated Statements of Earnings and Comprehensive Income, (iii) Condensed Consolidated Statements of Financial Position, (iv) Condensed Consolidated Statements of Cash Flows, (v) Condensed Consolidated Statements of Changes in Shareholders’ Equity, (vi) Notes to Condensed Consolidated Financial Statements, and (vii) Other Information.
1 unchanged sentence
*104 Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)
+Added: + Management contract or compensatory plan or arrangement
* Filed with this report
7 unchanged sentences
(Principal Accounting Officer)
−Removed: October 20, 2025
+Added: April 20, 2026
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.