What changed in this filing

/stocks — the workspaceLOADING

Item 9A. Controls and Procedures

2026-01-27 compared with 2025-01-30 · 122 added, 115 removed, 177 unchanged (57% of the section changed)

4 unchanged sentences

CHANGES IN INTERNAL CONTROL OVER FINANCIAL REPORTING

During the three months ended December 31, 2024, no change occurred in our internal control over financial reporting that materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

Other Information

During the three months ended December 31, 2025, no changes occurred in our internal control over financial reporting that materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

MANAGEMENT’S REPORT ON INTERNAL CONTROL OVER FINANCIAL REPORTING

10 unchanged sentences

Chair, Chief Executive Officer and President

/s/ Kenneth B.

Corporate Vice President and Chief Financial Officer

January 26, 2026

NORTHROP GRUMMAN CORPORATION

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

25 unchanged sentences

January 26, 2026

NORTHROP GRUMMAN CORPORATION

Other Information

CERTAIN TRADING AGREEMENTS

During the quarter ended December 31, 2024 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.

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 December 31, 2025.

(Title) Type of Trading Arrangement Date of Adoption

Expiration Date of Trading Arrangement

Aggregate Number of Securities to Be Purchased or Sold

Roeder Rule 10b5-1 Trading Arrangement October 30, 2025 December 31, 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.

Sale of 318 shares

Sale of shares to be received upon payout of 2023 RSRs and RPSRs

(Corporate Vice President and President, Mission Systems)

Disclosure Regarding Foreign Jurisdictions that Prevent Inspections

6 unchanged sentences

Warden 54 Chair, Chief Executive Officer and President 2019

Crews 43 Corporate Vice President and Chief Financial Officer 2024 Vice President and Chief Financial Officer, Space Systems Sector (2023-2024);

Vice President and Chief Financial Officer, Mission Systems Sector (2021-2023);

Vice President and Chief Financial Officer, Land and Avionics C4ISR Division, Mission Systems Sector (2017-2020)

60 Corporate Vice President and Chief Financial Officer 2026

Executive Vice President and Chief Financial Officer, Discover Financial Services (2019-2025)

Davies 48 Corporate Vice President and President, Defense Systems Sector 2024 Vice President and General Manager, Strategic Deterrent Systems Division, Space Systems Sector (2023-2024);

3 unchanged sentences

Vice President, Business Development and Strategy, Space Systems Sector (2020-2021)

Vice President, Space Programs, Strategic Force Programs, Mission Systems Sector (2019-2020)

Hardesty 54 Corporate Vice President, Controller, and Chief Accounting Officer 2013

Jones 58 Corporate Vice President and President, Aeronautics Systems Sector 2021 Vice President and General Manager, Airborne C4ISR Division, Mission Systems Sector (2017-2020)

Jones 59 Corporate Vice President and President, Aeronautics Systems Sector 2021

Roeder 46 Corporate Vice President and President, Mission Systems Sector 2024 Corporate Vice President and President, Defense Systems Sector (2022-2024);

Vice President and General Manager, Airborne Multifunction Sensors, Mission Systems Sector (2020-2022)

Vice President Program Management, Communications Business Unit, Mission Systems Sector (2018-2020)

Simpson 62 Corporate Vice President and General Counsel 2023 Vice President, Associate General Counsel, Mission Systems Sector (2021-2023);

Vice President, Deputy General Counsel (2012-2021)

NORTHROP GRUMMAN CORPORATION

AUDIT COMMITTEE FINANCIAL EXPERT

AUDIT AND RISK COMMITTEE

The information as to the Audit and Risk Committee and the Audit and Risk Committee Financial Expert will be incorporated herein by reference to the Proxy Statement for the 2026 Annual Meeting of Shareholders.

2 unchanged sentences

The Standards of Business Conduct can be found on our website at www.northropgrumman.com under “Who We Are – Investors – Corporate Governance – Overview – Standards of Business Conduct.” A copy of the Standards of Business Conduct is available to any stockholder who requests it by writing to:

Northrop Grumman Corporation, c/o Office of the Secretary, 2980 Fairview Park Drive, Falls Church, VA 22042.

Northrop Grumman Corporation, c/o Office of the Secretary, 2980 Fairview Park Drive,

NORTHROP GRUMMAN CORPORATION

Falls Church, VA 22042.

We disclose amendments to provisions of our Standards of Business Conduct by posting amendments on our website.

25 unchanged sentences

and Orbital ATK, Inc.

(incorporated by reference to Exhibit 2.1 to Form 8-K filed September 18, 2017, File No.

(incorporated by reference to Exhibit 2.1 to Form 8-K filed September 18, 2017 )

2(b) Transaction Agreement dated as of April 28, 2014, among Alliant Techsystems Inc., Vista Spinco Inc., Vista Merger Sub Inc.

and Orbital Sciences Corporation (incorporated by reference to Exhibit 2.1 to Alliant Techsystems Inc.

(now known as Northrop Grumman Innovation Systems, Inc.) Form 8-K filed May 2, 2014, File No.

3(a) Restated Certificate of Incorporation of Northrop Grumman Corporation, dated May 15, 2024 (incorporated by reference to Exhibit 3.1 to Form 8-K filed May 16, 2024, File No.

3(b) Amended and Restated Bylaws of Northrop Grumman Corporation dated May 17, 2023 (incorporated by reference to Exhibit 3.2 to Form 8-K filed May 19, 2023, File No.

4(a) Indenture dated as of October 15, 1994, between Northrop Grumman Corporation (now Northrop Grumman Systems Corporation) and The Chase Manhattan Bank (National Association), Trustee (incorporated by reference to Exhibit 4.1 to Form 8-K filed October 25, 1994, File No.

(now known as Northrop Grumman Innovation Systems, Inc.) Form 8-K filed May 2, 2014 )

3(a) Restated Certificate of Incorporation of Northrop Grumman Corporation, dated May 15, 2024 (incorporated by reference to Exhibit 3.1 to Form 8-K filed May 16, 2024 )

3(b) Amended and Restated Bylaws of Northrop Grumman Corporation dated May 17, 2023 (incorporated by reference to Exhibit 3.2 to Form 8-K filed May 19, 2023 )

4(b) First Supplemental Indenture dated as of March 30, 2011 by and among Northrop Grumman Systems Corporation, The Bank of New York Mellon (successor trustee to JPMorgan Chase Bank and The Chase Manhattan Bank, N.A.), Titan II, Inc.

(formerly known as Northrop Grumman Corporation), and Titan Holdings II, L.P., to Indenture dated as of October 15, 1994, between Northrop Grumman Corporation (now Northrop Grumman Systems Corporation) and The Chase Manhattan Bank, N.A., Trustee (incorporated by reference to Exhibit 4.1 to Form 10-Q for the quarter ended March 31, 2011, filed April 27, 2011, File No.

4(c) Second Supplemental Indenture dated as of March 30, 2011 by and among Northrop Grumman Systems Corporation, The Bank of New York Mellon (successor trustee to JPMorgan Chase Bank and The Chase Manhattan Bank, N.A.), Titan Holdings II, L.P., and Northrop Grumman Corporation (formerly known as New P, Inc.), to Indenture dated as of October 15, 1994, between Northrop Grumman Corporation (now Northrop Grumman Systems Corporation) and The Chase Manhattan Bank, N.A., Trustee (incorporated by reference to Exhibit 4.2 to Form 10-Q for the quarter ended March 31, 2011, filed April 27, 2011, File No.

4(d) Form of Officers’ Certificate (without exhibits) establishing the terms of Northrop Grumman Corporation’s (now Northrop Grumman Systems Corporation’s) 7.875% Debentures due 2026 (incorporated by reference to Exhibit 4.3 to Form S-4 Registration Statement No.

3 unchanged sentences

NORTHROP GRUMMAN CORPORATION

4(f) Form of Officers’ Certificate establishing the terms of Northrop Grumman Corporation’s (now Northrop Grumman Systems Corporation’s) 7.75% Debentures due 2031 (incorporated by reference to Exhibit 10.9 to Form 8-K filed April 17, 2001, File No.

4(g) Senior Indenture dated as of December 15, 1991, between Litton Industries, Inc.

(predecessor-in-interest to Northrop Grumman Systems Corporation) and The Bank of New York, as trustee, under which its 7.75% and 6.98% debentures due 2026 and 2036 were issued, and specimens of such debentures (incorporated by reference to Exhibit 4.1 to the Form 10-Q of Litton Industries, Inc.

for the quarter ended April 30, 1996, filed June 11, 1996, File No.

for the quarter ended April 30, 1996, filed June 11, 1996 )

4(h) Supplemental Indenture with respect to Senior Indenture dated December 15, 1991, dated as of April 3, 2001, among Litton Industries, Inc.

(predecessor-in-interest to Northrop Grumman Systems Corporation), Northrop Grumman Corporation, Northrop Grumman Systems Corporation and The Bank of New York, as trustee (incorporated by reference to Exhibit 4.7 to Form 10-Q for the quarter ended March 31, 2001, filed May 10, 2001, File No.

4(i) Supplemental Indenture with respect to Senior Indenture dated December 15, 1991, dated as of December 20, 2002, among Litton Industries, Inc.

(predecessor-in-interest to Northrop Grumman Systems Corporation), Northrop Grumman Corporation, Northrop Grumman Systems Corporation and The Bank of New York, as trustee (incorporated by reference to Exhibit 4(t) to Form 10-K for the year ended December 31, 2002, filed March 24, 2003, File No.

(predecessor-in-interest to Northrop Grumman Systems Corporation), Northrop Grumman Corporation, Northrop Grumman Systems Corporation and The Bank of New York, as trustee (incorporated by reference to Exhibit 4(t) to Form 10-K for the year ended December 31, 2002, filed March 24, 2003 )

4(j) Third Supplemental Indenture dated as of March 30, 2011 by and among Northrop Grumman Systems Corporation (successor-in-interest to Litton Industries, Inc.), The Bank of New York Mellon (formerly known as The Bank of New York), as trustee, Titan II, Inc.

(formerly known as Northrop Grumman Corporation), and Titan Holdings II, L.P., to Senior Indenture dated December 15, 1991, between Litton Industries, Inc.

and The Bank of New York, as trustee (incorporated by reference to Exhibit 4.5 to Form 10-Q for the quarter ended March 31, 2011, filed April 27, 2011, File No.

and The Bank of New York, as trustee (incorporated by reference to Exhibit 4.5 to Form 10-Q for the quarter ended March 31, 2011, filed April 27, 2011 )

4(k) Fourth Supplemental Indenture dated as of March 30, 2011 by and among Northrop Grumman Systems Corporation (successor-in-interest to Litton Industries, Inc.), The Bank of New York Mellon (formerly known as The Bank of New York) as trustee, Titan Holdings II, L.P., and Northrop Grumman Corporation (formerly known as New P, Inc.), to Senior Indenture dated December 15, 1991, between Litton Industries, Inc.

and The Bank of New York, as trustee (incorporated by reference to Exhibit 4.6 to Form 10-Q for the quarter ended March 31, 2011, filed April 27, 2011, File No.

and The Bank of New York, as trustee (incorporated by reference to Exhibit 4.6 to Form 10-Q for the quarter ended March 31, 2011, filed April 27, 2011 )

4(l) Indenture between TRW Inc.

(predecessor-in-interest to Northrop Grumman Systems Corporation) and Mellon Bank, N.A., as trustee, dated as of May 1, 1986 (incorporated by reference to Exhibit 2 to the Form 8-A Registration Statement of TRW Inc.

dated July 3, 1986, File No.

dated July 3, 1986)

4(m) First Supplemental Indenture between TRW Inc.

9 unchanged sentences

Northrop Grumman Corporation;

and Northrop Grumman Systems Corporation (incorporated by reference to Exhibit 4(p) to Form 10-K for the year ended December 31, 2009, filed February 9, 2010, File No.

and Northrop Grumman Systems Corporation (incorporated by reference to Exhibit 4(p) to Form 10-K for the year ended December 31, 2009, filed February 9, 2010 )

NORTHROP GRUMMAN CORPORATION

2 unchanged sentences

(formerly known as Northrop Grumman Corporation), and Titan Holdings II, L.P., to Indenture between TRW Inc.

and Mellon Bank, N.A., as trustee, dated as of May 1, 1986 (incorporated by reference to Exhibit 4.7 to Form 10-Q for the quarter ended March 31, 2011, filed April 27, 2011, File No.

and Mellon Bank, N.A., as trustee, dated as of May 1, 1986 (incorporated by reference to Exhibit 4.7 to Form 10-Q for the quarter ended March 31, 2011, filed April 27, 2011 )

4(q) Eleventh Supplemental Indenture dated as of March 30, 2011, by and among Northrop Grumman Systems Corporation (successor-in-interest to Northrop Grumman Space & Mission Systems Corp.

and TRW Inc.), The Bank of New York Mellon, as successor trustee to JPMorgan Chase Bank and to Mellon Bank, N.A., Titan Holdings II, L.P., and Northrop Grumman Corporation (formerly known as New P, Inc.) to Indenture between TRW Inc.

and Mellon Bank, N.A., as trustee, dated as of May 1, 1986 (incorporated by reference to Exhibit 4.8 to Form 10-Q for the quarter ended March 31, 2011, filed April 27, 2011, File No.

4(r) Twelfth Supplemental Indenture, dated as of August 25, 2021, to the Indenture dated as of May 1, 1986, by and among Northrop Grumman Systems Corporation, Northrop Grumman Corporation and The Bank of New York Mellon, as trustee (incorporated by reference to Exhibit 4.1 to Form 8-K filed August 27, 2021, File No.

4(s) Thirteenth Supplemental Indenture, dated as of August 25, 2021, to the Indenture dated as of May 1, 1986, by and among Northrop Grumman Systems Corporation, Northrop Grumman Corporation and The Bank of New York Mellon, as trustee (incorporated by reference to Exhibit 4.2 to Form 8-K filed August 27, 2021, File No.

4(t) Indenture dated as of November 21, 2001, between Northrop Grumman Corporation and JPMorgan Chase Bank, as trustee (incorporated by reference to Exhibit 4.1 to Form 8-K filed November 21, 2001, File No.

4(u) Second Supplemental Indenture dated as of November 8, 2010, between Northrop Grumman Corporation and The Bank of New York Mellon, as successor trustee, to Indenture dated as of November 21, 2001 (incorporated by reference to Exhibit 4(a) to Form 8-K filed November 8, 2010, File No.

4(v) Form of Northrop Grumman Corporation’s 5.050% Senior Note due 2040 (incorporated by reference to Exhibit C to Exhibit 4(a) to Form 8-K filed November 8, 2010, File No.

4(w) Third Supplemental Indenture dated as of March 30, 2011, by and among Titan II, Inc.

(formerly known as Northrop Grumman Corporation), The Bank of New York Mellon, as successor trustee to JPMorgan Chase Bank, and Titan Holdings II, L.P., to Indenture dated as of November 21, 2001 between Northrop Grumman Corporation and JPMorgan Chase Bank, as trustee (incorporated by reference to Exhibit 4.9 to Form 10-Q for the quarter ended March 31, 2011, filed April 27, 2011, File No.

4(x) Fourth Supplemental Indenture dated as of March 30, 2011, by and among Titan Holdings II, L.P., The Bank of New York Mellon, as successor trustee to JPMorgan Chase Bank, and Northrop Grumman Corporation (formerly known as New P, Inc.), to Indenture dated as of November 21, 2001 between Northrop Grumman Corporation and JPMorgan Chase Bank, as trustee (incorporated by reference to Exhibit 4.10 to Form 10-Q for the quarter ended March 31, 2011, filed April 27, 2011, File No.

4(y) Fifth Supplemental Indenture, dated as of May 31, 2013, 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(a) to Form 8-K filed May 31, 2013, File No.

4(z) Form of 4.750% Senior Note due 2043 (incorporated by reference to Exhibit C to Exhibit 4(a) to Form 8-K filed May 31, 2013, File No.

4(aa) Sixth Supplemental Indenture, dated as of February 6, 2015, 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 February 6, 2015, File No.

4(bb) Form of 3.850% Senior Note due 2045 (incorporated by reference to Exhibit A to Exhibit 4.1 to Form 8-K filed February 6, 2015, File No.

and Mellon Bank, N.A., as trustee, dated as of May 1, 1986 (incorporated by reference to Exhibit 4.8 to Form 10-Q for the quarter ended March 31, 2011, filed April 27, 2011 )

4(t) Indenture dated as of November 21, 2001, between Northrop Grumman Corporation and JPMorgan Chase Bank, as trustee (incorporated by reference to Exhibit 4.1 to Form 8-K filed November 21, 2001 )

First Supplemental Indenture dated as of July 30, 2009, between Northrop Grumman Corporation and The Bank of New York Mellon, as successor trustee, to Indenture dated as of November 21, 2001 (incorporated by reference to Exhibit 4(a) to Form 8-K filed July 30, 2009)

Second Supplemental Indenture dated as of November 8, 2010, between Northrop Grumman Corporation and The Bank of New York Mellon, as successor trustee, to Indenture dated as of November 21, 2001 (incorporated by reference to Exhibit 4(a) to Form 8-K filed November 8, 2010 )

Form of Northrop Grumman Corporation’s 5.050% Senior Note due 2040 (incorporated by reference to Exhibit C to Exhibit 4(a) to Form 8-K filed November 8, 2010 )

Third Supplemental Indenture dated as of March 30, 2011, by and among Titan II, Inc.

Fourth Supplemental Indenture dated as of March 30, 2011, by and among Titan Holdings II, L.P., The Bank of New York Mellon, as successor trustee to JPMorgan Chase Bank, and Northrop Grumman Corporation (formerly known as New P, Inc.), to Indenture dated as of November 21, 2001 between Northrop Grumman Corporation and JPMorgan Chase Bank, as trustee (incorporated by reference to Exhibit 4.10 to Form 10-Q for the quarter ended March 31, 2011, filed April 27, 2011 )

Fifth Supplemental Indenture, dated as of May 31, 2013, 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(a) to Form 8-K filed May 31, 2013 )

Form of 4.750% Senior Note due 2043 (incorporated by reference to Exhibit C to Exhibit 4(a) to Form 8-K filed May 31, 2013 )

NORTHROP GRUMMAN CORPORATION

4(cc) Seventh Supplemental Indenture, dated as of December 1, 2016, 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 December 1, 2016, File No.

4(dd) Form of 3.200% Senior Note due 2027 (incorporated by reference to Exhibit A to Exhibit 4.1 to Form 8-K filed December 1, 2016, File No.

4(ee) Eighth Supplemental Indenture, dated as of October 13, 2017, 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 October 13, 2017, File No.

4(ff) Ninth Supplemental Indenture, dated as of March 23, 2020, between Northrop Grumman Corporation and The Bank of New York Mellon, as successor to JPMorgan Chase, Trustee, to Indenture dated as of November 21, 2001 (incorporated by reference to Exhibit 4.1 to Form 8-K filed March 24, 2020, File No.

4(gg) Form of 2.930% Senior Note due 2025 (incorporated by reference to Exhibit C to Exhibit 4.1 to Form 8-K filed October 13, 2017, File No.

4(hh) Form of 3.250% Senior Note due 2028 (incorporated by reference to Exhibit D to Exhibit 4.1 to Form 8-K filed October 13, 2017, File No.

4(ii) Form of 4.030% Senior Note due 2047 (incorporated by reference to Exhibit E to Exhibit 4.1 to Form 8-K filed October 13, 2017, File No.

4(jj) Form of 4.400% Senior Note due 2030 (incorporated by reference to Exhibit 4.1 to Form 8-K filed March 24, 2020, File No.

4(kk) Form of 5.150% Senior Note due 2040 (incorporated by reference to Exhibit 4.1 to Form 8-K filed March 24, 2020, File No.

4(ll) Form of 5.250% Senior Note due 2050 (incorporated by reference to Exhibit 4.1 to Form 8-K filed March 24, 2020, File No.

4(mm) Tenth Supplemental Indenture, dated as of September 2, 2021, 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 September 3, 2021, File No.

4(nn) Form of 7.875% Senior Note due 2026 (incorporated by reference to Exhibit A in Exhibit 4.1 to Form 8-K filed September 3, 2021, File No.

4(oo) Form of 7.750% Senior Note due 2026 (incorporated by reference to Exhibit B in Exhibit 4.1 to Form 8-K filed September 3, 2021, File No.

4(pp) Form of 6.650% Senior Note due 2028 (incorporated by reference to Exhibit C in Exhibit 4.1 to Form 8-K filed September 3, 2021, File No.

4(qq) Form of 7.750% Senior Note due 2029 (incorporated by reference to Exhibit D in Exhibit 4.1 to Form 8-K filed September 3, 2021, File No.

4(rr) Form of 7.750% Senior Note due 2031 (incorporated by reference to Exhibit E in Exhibit 4.1 to Form 8-K filed September 3, 2021, File No.

4(ss) Form of 6.980% Senior Note due 2036 (incorporated by reference to Exhibit F in Exhibit 4.1 to Form 8-K filed September 3, 2021, File No.

4(tt) Description of Securities (incorporated by reference to Exhibit 4(ll) to Form 10-K for the year ended December 31, 2019, filed January 30, 2020, File No.

4(uu) Eleventh Supplemental Indenture, dated as of February 8, 2023, 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 February 8, 2023, File No.

Sixth Supplemental Indenture, dated as of February 6, 2015, 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 February 6, 2015 )

Form of 3.850% Senior Note due 2045 (incorporated by reference to Exhibit A to Exhibit 4.1 to Form 8-K filed February 6, 2015 )

Seventh Supplemental Indenture, dated as of December 1, 2016, 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 December 1, 2016 )

Form of 3.200% Senior Note due 2027 (incorporated by reference to Exhibit A to Exhibit 4.1 to Form 8-K filed December 1, 2016 )

Eighth Supplemental Indenture, dated as of October 13, 2017, 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 October 13, 2017 )

Ninth Supplemental Indenture, dated as of March 23, 2020, between Northrop Grumman Corporation and The Bank of New York Mellon, as successor to JPMorgan Chase, Trustee, to Indenture dated as of November 21, 2001 (incorporated by reference to Exhibit 4.1 to Form 8-K filed March 24, 2020 )

4(hh) Form of 3.250% Senior Note due 2028 (incorporated by reference to Exhibit D to Exhibit 4.1 to Form 8-K filed October 13, 2017 )

4(ii) Form of 4.030% Senior Note due 2047 (incorporated by reference to Exhibit E to Exhibit 4.1 to Form 8-K filed October 13, 2017 )

4(jj) Form of 4.400% Senior Note due 2030 (incorporated by reference to Exhibit 4.1 to Form 8-K filed March 24, 2020 )

4(kk) Form of 5.150% Senior Note due 2040 (incorporated by reference to Exhibit 4.1 to Form 8-K filed March 24, 2020 )

4(ll) Form of 5.250% Senior Note due 2050 (incorporated by reference to Exhibit 4.1 to Form 8-K filed March 24, 2020 )

4(nn) Form of 7.875% Senior Note due 2026 (incorporated by reference to Exhibit A in Exhibit 4.1 to Form 8-K filed September 3, 2021 )

4(oo) Form of 7.750% Senior Note due 2026 (incorporated by reference to Exhibit B in Exhibit 4.1 to Form 8-K filed September 3, 2021 )

4(pp) Form of 6.650% Senior Note due 2028 (incorporated by reference to Exhibit C in Exhibit 4.1 to Form 8-K filed September 3, 2021 )

4(qq) Form of 7.750% Senior Note due 2029 (incorporated by reference to Exhibit D in Exhibit 4.1 to Form 8-K filed September 3, 2021 )

4(rr) Form of 7.750% Senior Note due 2031 (incorporated by reference to Exhibit E in Exhibit 4.1 to Form 8-K filed September 3, 2021 )

4(ss) Form of 6.980% Senior Note due 2036 (incorporated by reference to Exhibit F in Exhibit 4.1 to Form 8-K filed September 3, 2021 )

4(tt) Description of Securities (incorporated by reference to Exhibit 4(ll) to Form 10-K for the year ended December 31, 2019, filed January 30, 2020 )

NORTHROP GRUMMAN CORPORATION

4(vv) Form of 4.700% Senior Note due 2033 (incorporated by reference to Exhibit A included in Exhibit 4.1 to Form 8-K filed February 8, 2023, File No.

4(ww) Form of 4.950% Senior Note due 2053 (incorporated by reference to Exhibit B included in Exhibit 4.1 to Form 8-K filed February 8, 2023, File No.

4(xx) Twelfth Supplemental Indenture, dated as of January 31, 2024, 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 January 31, 2024, File No.

4(yy) Form of 4.600% Senior Note due 2029 (incorporated by reference to Exhibit A included in Exhibit 4.1 to Form 8-K filed January 31, 2024, File No.

4(zz) Form of 4.900% Senior Note due 2034 (incorporated by reference to Exhibit B included in Exhibit 4.1 to Form 8-K filed January 31, 2024, File No.

4(aaa) Form of 5.200% Senior Note due 2054 (incorporated by reference to Exhibit C included in Exhibit 4.1 to Form 8-K filed January 31, 2024, File No.

10(a) Credit Agreement, dated as of August 23, 2022, among Northrop Grumman Corporation, as Borrower;

Northrop Grumman Systems Corporation, as Guarantor;

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 August 23, 2022, File No.

4(vv) Form of 4.700% Senior Note due 2033 (incorporated by reference to Exhibit A included in Exhibit 4.1 to Form 8-K filed February 8, 2023 )

4(ww) Form of 4.950% Senior Note due 2053 (incorporated by reference to Exhibit B included in Exhibit 4.1 to Form 8-K filed February 8, 2023 )

4(yy) Form of 4.600% Senior Note due 2029 (incorporated by reference to Exhibit A included in Exhibit 4.1 to Form 8-K filed January 31, 2024 )

4(zz) Form of 4.900% Senior Note due 2034 (incorporated by reference to Exhibit B included in Exhibit 4.1 to Form 8-K filed January 31, 2024 )

4(aaa) Form of 5.200% Senior Note due 2054 (incorporated by reference to Exhibit C included in Exhibit 4.1 to Form 8-K filed January 31, 2024 )

4(bbb) Thirteenth Supplemental Indenture, dated as of May 29, 2025, 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, 2025 )

4(ccc) Form of 4.650% Senior Note due 2030 (incorporated by reference to Exhibit A included in Exhibit 4.2 to Form 8-K filed May 29, 2025 )

4(ddd) Form of 5.250% Senior Note due 2035 (incorporated by reference to Exhibit B included in Exhibit 4.3 to Form 8-K filed May 29, 2025 )

10(a) Credit Agreement, dated as of Sep tember 2 , 202 5 , among Northrop Grumman Corporation, as Borrower;

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 , 202 5 )

10(b) Form of Guarantee dated as of April 3, 2001, by Northrop Grumman Corporation of the indenture indebtedness issued by Litton Industries, Inc.

(predecessor-in-interest to Northrop Grumman Systems Corporation) (incorporated by reference to Exhibit 10.10 to Form 8-K filed April 17, 2001, File No.

10(c) Form of Guarantee dated as of April 3, 2001, by Northrop Grumman Corporation of Northrop Grumman Systems Corporation indenture indebtedness (incorporated by reference to Exhibit 10.11 to Form 8-K and filed April 17, 2001, File No.

(predecessor-in-interest to Northrop Grumman Systems Corporation) (incorporated by reference to Exhibit 10.10 to Form 8-K filed April 17, 2001 )

10(d) Form of Guarantee dated as of March 27, 2003, by Northrop Grumman Corporation, as Guarantor, in favor of JP Morgan Chase Bank, as trustee, of certain debt securities issued by the former Northrop Grumman Space & Mission Systems Corp.

(predecessor-in-interest to Northrop Grumman Systems Corporation) (incorporated by reference to Exhibit 4.2 to Form 10-Q for the quarter ended March 31, 2003, filed May 14, 2003, File No.

(i) First Amendment to Guarantee, dated as of August 25, 2021, to the Guarantee dated as of March 27, 2003, by and among Northrop Grumman Systems Corporation, Northrop Grumman Corporation and The Bank of New York Mellon, as trustee (incorporated by reference to Exhibit 10.1 to Form 8-K filed August 27, 2021, File No.

Northrop Grumman Corporation 1993 Stock Plan for Non-Employee Directors (as Amended and Restated January 1, 2010) (incorporated by reference to Exhibit 10.1 to Form 10-Q for the quarter ended June 30, 2009, filed July 23, 2009, File No.

Amended and Restated 2011 Long-Term Incentive Stock Plan (as amended and restated effective as of May 20, 2015) (incorporated by reference to Appendix B to the Company’s Proxy Statement on Schedule 14A for the 2015 Annual Meeting of Shareholders filed April 6, 2015, File No.

(i) Northrop Grumman Corporation Equity Grant Program for Non-Employee Directors under the Northrop Grumman 2011 Long-Term Incentive Stock Plan, Amended and Restated Effective as of January 1, 2016 (incorporated by reference to Exhibit 10.1 to Form 10-Q for the quarter ended September 30, 2015, filed October 28, 2015, File No.

(ii) 2021 Restricted Stock Rights Grant Agreement Granted Under the 2011 Long-Term Incentive Stock Plan (incorporated by reference to Exhibit 10.2 to Form 10-Q for the quarter ended March 31, 2021, filed April 29, 2021, File No.

(iii) 2021 Restricted Performance Stock Rights Grant Agreement Granted Under the 2011 Long-Term Incentive Stock Plan (incorporated by reference to Exhibit 10.3 to Form 10-Q for the quarter ended March 31, 2021, filed April 29, 2021, File No.

(predecessor-in-interest to Northrop Grumman Systems Corporation) (incorporated by reference to Exhibit 4.2 to Form 10-Q for the quarter ended March 31, 2003, filed May 14, 2003 )

First Amendment to Guarantee, dated as of August 25, 2021, to the Guarantee dated as of March 27, 2003, by and among Northrop Grumman Systems Corporation, Northrop Grumman Corporation and The Bank of New York Mellon, as trustee (incorporated by reference to Exhibit 10.1 to Form 8-K filed August 27, 2021 )

NORTHROP GRUMMAN CORPORATION

(iv) 2022 Restricted Stock Rights Grant Agreement Granted Under the 2011 Long-Term Incentive Stock Plan (incorporated by reference to Exhibit 10.2 to Form 10-Q for the quarter ended March 31, 2022, filed April 28, 2022, File No.

(v) 2022 Restricted Performance Stock Rights Grant Agreement Granted Under the 2011 Long-Term Incentive Stock Plan (incorporated by reference to Exhibit 10.3 to Form 10-Q for the quarter ended March 31, 2022, filed April 28, 2022, File No.

(vi) 2023 Restricted Stock Rights Grant Agreement Granted Under the 2011 Long-Term Incentive Stock Plan (incorporated by reference to Exhibit 10.1 to Form 10-Q for the quarter ended March 31, 2023, filed April 26, 2023, File No.

(vii) 2023 Restricted Performance Stock Rights Grant Agreement Granted Under the 2011 Long-Term Incentive Stock Plan (incorporated by reference to Exhibit 10.2 to Form 10-Q for the quarter ended March 31, 2023, filed April 26, 2023, File No.

Special 2023 Restricted Stock Rights Grant Agreement Granted to Roshan Roeder Under the 2011 Long-Term Incentive Stock Plan (incorporated by reference to Exhibit 10(f)(viii) to Form 10-K for the year ended December 31, 2023, filed January 25, 2024, File No.

2024 Restricted Stock Rights Grant Agreement Granted Under the 2011 Long-Term Incentive Stock Plan (incorporated by reference to Exhibit 10.1 to Form 10-Q for the quarter ended March 31, 2024, filed April 25, 2024, File No.

2024 Restricted Performance Stock Rights Grant Agreement Granted Under the 2011 Long-Term Incentive Stock Plan (incorporated by reference to Exhibit 10.2 to Form 10-Q for the quarter ended March 31, 2024, filed April 25, 2024, File No.

Northrop Grumman 2011 Long-Term Incentive Stock Plan (as Amended Through December 4, 2014) (incorporated by reference to Exhibit 10(h) to Form 10-K for the year ended December 31, 2014, filed February 2, 2015, File No.

(i) Summary of Non-Employee Director Award Terms Under the 2011 Long-Term Incentive Stock Plan effective December 21, 2011 (incorporated by reference to Exhibit 10(j)(ii) to Form 10-K for the year ended December 31, 2011, filed February 8, 2012, File No.

(ii) Northrop Grumman Corporation Equity Grant Program for Non-Employee Directors under the Northrop Grumman 2011 Long-Term Incentive Stock Plan, Amended and Restated Effective January 1, 2015 (incorporated by reference to Exhibit 10(h)(ii) to Form 10-K for the year ended December 31, 2014, filed February 2, 2015, File No.

Northrop Grumman 2024 Long-Term Incentive Stock Plan (incorporated by reference to Exhibit 10.1 to Form 8-K filed May 16, 2024, File No.

(i) Northrop Grumman Corporation Equity Grant Program for Non-Employee Directors under the Northrop Grumman 2024 Long-Term Incentive Stock Plan, Amended and Restated effective May 15, 2024 (incorporated by reference to Exhibit 10.2 to Form 10-Q for the quarter ended June 30, 2024, filed July 25, 2024, File No.

Northrop Grumman Supplemental Plan 2 (Amended and Restated Effective as of January 1, 2014) (incorporated by reference to Exhibit 10(l) to Form 10-K for the year ended December 31, 2013, Filed February 3, 2014, File No.

2022 Restricted Stock Rights Grant Agreement Granted Under the 2011 Long-Term Incentive Stock Plan (incorporated by reference to Exhibit 10.2 to Form 10-Q for the quarter ended March 31, 2022, filed April 28, 2022 )

2022 Restricted Performance Stock Rights Grant Agreement Granted Under the 2011 Long-Term Incentive Stock Plan (incorporated by reference to Exhibit 10.3 to Form 10-Q for the quarter ended March 31, 2022, filed April 28, 2022 )

2023 Restricted Stock Rights Grant Agreement Granted Under the 2011 Long-Term Incentive Stock Plan (incorporated by reference to Exhibit 10.1 to Form 10-Q for the quarter ended March 31, 2023, filed April 26, 2023 )

2023 Restricted Performance Stock Rights Grant Agreement Granted Under the 2011 Long-Term Incentive Stock Plan (incorporated by reference to Exhibit 10.2 to Form 10-Q for the quarter ended March 31, 2023, filed April 26, 2023 )

NORTHROP GRUMMAN CORPORATION

Northrop Grumman 2024 Long-Term Incentive Stock Plan (incorporated by reference to Exhibit 10.1 to Form 8-K filed May 16, 2024 )

Northrop Grumman Corporation Equity Grant Program for Non-Employee Directors under the Northrop Grumman 2024 Long-Term Incentive Stock Plan, Amended and Restated effective May 15, 2024 (incorporated by reference to Exhibit 10.2 to Form 10-Q for the quarter ended June 30, 2024, filed July 25, 2024)

2025 Restricted Stock Rights Grant Agreement Granted Under the 2024 Long-Term Incentive Stock Plan (incorporated by reference to Exhibit 10.1 to Form 10-Q for the quarter ended March 31, 2025, filed April 22, 2025)

2025 Restricted Performance Stock Rights Grant Agreement Granted Under the 2024 Long-Term Incentive Stock Plan (incorporated by reference to Exhibit 10.2 to Form 10-Q for the quarter ended March 31, 2025, filed April 22, 2025)

(i) Appendix B to the Northrop Grumman Supplemental Plan 2:

ERISA Supplemental Program 2 (Amended and Restated Effective as of January 1, 2014) (incorporated by reference to Exhibit 10(l)(i) to Form 10-K for the year ended December 31, 2013, filed February 3, 2014, File No.

Appendix I to the Northrop Grumman Supplemental Plan 2:

Officers Supplemental Executive Retirement Program II (Amended and Restated January 1, 2014) (incorporated by reference to Exhibit 10(k)(iv) to Form 10-K for the year ended December 31, 2015, filed February 1, 2016, File No.

(ii) Appendix I to the Northrop Grumman Supplemental Plan 2:

(iii) First Amendment to the Northrop Grumman Supplemental Plan 2, dated December 20, 2017 (Effective as of December 31, 2017) (incorporated by reference to Exhibit 10(j)(v) to Form 10-K for the year ended December 31, 2017, filed January 29, 2018 )

Severance Plan for Elected and Appointed Officers of Northrop Grumman Corporation (Amended and Restated Effective February 18, 2025) (incorporated by reference to Exhibit 10.3 to Form 10-Q for the quarter ended March 31, 2025, filed April 22, 2025)

Non-Employee Director Compensation Term Sheet, effective May 15, 2024 (incorporated by reference to Exhibit 10.3 to Form 10-Q for the quarter ended June 30, 2025, filed July 25, 2024)

Non-Employee Director Compensation Term Sheet, effective May 21, 2025 (incorporated by reference to Exhibit 10.1 to Form 10-Q for the quarter ended June 30, 2025, filed July 22, 2025)

Form of Indemnification Agreement between Northrop Grumman Corporation and its directors and executive officers (incorporated by reference to Exhibit 10.3 to Form 10-Q for the quarter ended March 31, 2012, filed April 25, 2012 )

+10(n) Northrop Grumman 2006 Annual Incentive Plan and Incentive Compensation Plan, as amended and restated effective January 1, 2024 (incorporated by reference to Exhibit 10.3 to Form 10-Q for the quarter ended March 31, 2024, filed April 25, 2024 )

Northrop Grumman Savings Excess Plan (Amended and Restated Effective as of July 1, 2023) (incorporated by reference to Exhibit 10.2 to Form 10-Q for the quarter ended June 30, 2023, filed July 26, 2023 )

Northrop Grumman Officers Retirement Account Contribution Plan (Amended and Restated Effective as of January 1, 2019) (incorporated by reference to Exhibit 10(v) to Form 10-K for the year ended December 31, 2018, filed January 31, 2019 )

Executive Basic Life Insurance and Accidental Death and Dismemberment Insurance Policy dated January 1, 2019 (incorporated by reference to Exhibit 10.4 to Form 10-Q for the quarter ended March 31, 2019, filed April 24, 2019 )

Executive Long-Term Disability Insurance Policy dated January 1, 2019 (incorporated by reference to Exhibit 10.5 to Form 10-Q for the quarter ended March 31, 2019, filed April 24, 2019 )

NORTHROP GRUMMAN CORPORATION

First Amendment to the Northrop Grumman Supplemental Plan 2, dated December 20, 2017 (Effective as of December 31, 2017) (incorporated by reference to Exhibit 10(j)(v) to Form 10-K for the year ended December 31, 2017, filed January 29, 2018, File No.

Severance Plan for Elected and Appointed Officers of Northrop Grumman Corporation (Amended and Restated Effective December 31, 2019) (incorporated by reference to Exhibit 10(j) to Form 10-K for the year ended December 31, 2019, filed January 30, 2020, File No.

Non-Employee Director Compensation Term Sheet, effective May 15, 2024 (incorporated by reference to Exhibit 10.3 to Form 10-Q for the quarter ended June 30, 2024, filed July 25, 2024, File No.

Non-Employee Director Compensation Term Sheet, effective May 17, 2023 (incorporated by reference to Exhibit 10.1 to Form 10-Q for the quarter ended June 30, 2023, filed July 26, 2023, File No.

Northrop Grumman 2006 Annual Incentive Plan and Incentive Compensation Plan, as amended and restated effective January 1, 2024 (incorporated by reference to Exhibit 10.3 to Form 10-Q for the quarter ended March 31, 2024, filed April 25, 2024, File No.

Executive Long-Term Disability Insurance Policy dated January 1, 2019 (incorporated by reference to Exhibit 10.5 to Form 10-Q for the quarter ended March 31, 2019, filed April 24, 2019, File No.

Executive Supplemental Individual Disability Insurance Plan dated June 10, 2022

Group Personal Excess Liability Policy effective as of January 1, 2024

Letter dated February 3, 2020 from Northrop Grumman Corporation to David Keffer regarding compensation effective February 17, 2020 (incorporated by reference to Exhibit 10.4 to Form 10-Q for the quarter ended March 31, 2020, filed April 29, 2020, File No.

*19 Insider Trading Policy and Procedure regarding Securities Trading for Designated Persons

Group Personal Excess Liability Policy effective as of January 1, 202 5 (incorporated by reference to Exhibit 10.4 to Form 10-Q for the quarter ended March 31, 2025, filed April 22, 2025)

Letter dated November 3, 202 5 from Northrop Grumman Corporation to John Greene regarding compensation effective January 7, 202 6

19 Insider Trading Policy and Procedure regarding Securities Trading for Designated Persons (incorporated by reference to Exhibit 19 to Form 10-K for the year ended December 31, 2024, filed January 30, 2025)

*21 Subsidiaries

3 unchanged sentences

Warden pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

*31.2 Certification of Kenneth B.

Crews pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

*31.2 Certification of John T .

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

**32.2 Certification of Kenneth B.

Crews pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

NORTHROP GRUMMAN CORPORATION

Northrop Grumman Policy Regarding the Recoupment of Certain Incentive Compensation Payments ( incorporated by reference to Exhibit 97 to Form 10-K for the year ended December 31, 20 23 , filed January 2 5 , 202 4 , File No.

**32.2 Certification of John T .

Greene pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Northrop Grumman Policy Regarding the Recoupment of Certain Incentive Compensation Payments (updated effective December 9, 2025)

*101 Northrop Grumman Corporation Annual Report on Form 10-K for the fiscal year ended December 31, 2025, formatted as inline XBRL (Extensible Business Reporting Language);

22 unchanged sentences

Arvind Krishna* Director

Robinson* Director

Gary Roughead* Director

7 unchanged sentences

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.

What changed 10-K

Item 9A. Controls and Procedures