Other Information
−Removed: During the quarter ended June 30, 2025 , none of our directors or officers (as defined in Rule 16a-1(f) of the Exchange Act) adopted or terminated a Rule 10b5-1 trading arrangement or non-Rule 10b5-1 trading arrangement, as those terms are defined in Item 408 of Regulation S-K.
+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 September 30, 2025.
+Added: (Title) Type of Trading Arrangement Date of Adoption
+Added: Expiration Date of Trading Arrangement
+Added: Aggregate Number of Securities to Be Purchased or Sold
+Added: 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: Sale of 10,000 shares of common stock
+Added: (Chair, Chief Executive Officer and President)
+Added: 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: Sale of 382 shares of common stock
NORTHROP GRUMMAN CORPORATION
−Removed: Thirteenth Supplemental Indenture, dated as of May 29 , 202 5 , between Northrop Grumman Corporation and The Bank of New York Mellon, as successor to JPMorgan Chase Bank, Trustee, to Indenture dated as of November 21, 2001 (incorporated by reference to Exhibit 4.1 to Form 8-K filed May 29 , 202 5 , File No.
−Removed: Form of 4.650 % Senior Note due 20 30 (included in Exhibit 4.1 ) (incorporated by reference to Exhibit 4.2 to Form 8-K filed May 29, 2025, File No.
−Removed: Form of 5.250 % Senior Note due 20 35 (included in Exhibit 4.1) (incorporated by reference to Exhibit 4.3 to Form 8-K filed May 29, 2025, File No.
−Removed: Non-Employee Director Compensation Term Sheet, effective May 21 , 202 5
+Added: 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.
*15 Letter from Independent Registered Public Accounting Firm
7 unchanged sentences
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 June 30, 2025 , formatted as inline XBRL (Extensible Business Reporting Language):
+Added: *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):
(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)
−Removed: + Management contract or compensatory plan or arrangement
* Filed with this report
7 unchanged sentences
(Principal Accounting Officer)
−Removed: July 21, 2025
+Added: October 20, 2025
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.