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    Amendment: SEC Form 11-K/A filed by Northrop Grumman Corporation

    6/11/26 1:02:20 PM ET
    $NOC
    Industrial Machinery/Components
    Industrials
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    noc-20260611
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Grumman Defined Contribution Plans Master Trust | Participation in Northrop Grumman Defined Contribution Plans Master Trust2025-12-310001133421noc:EBPNGSPMemberFidelity Brokerage Services LLC | BrokerageLink Account2025-12-310001133421noc:EBPNGSPMemberState Street Bank and Trust Company | State Street Bank and Trust Company short-term investment fund2025-12-31



    ______________________________________________
    SECURITIES AND EXCHANGE COMMISSION
    Washington, D.C. 20549
     ____________________
    FORM 11-K/A
    (Amendment No. 1)
     ____________________
    (Mark One)
     
        þ
    ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
    For the fiscal year ended December 31, 2025
    OR
     
        ¨
    TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
    For the transition period from              to             .
    Commission file number: 1-16411
     
    A.Full title of the plan and address of the plan, if different from that of the issuer named below:
    NORTHROP GRUMMAN SAVINGS PLAN
     
    B.Name of issuer of the securities held pursuant to the plan and the address of its principal executive office:
    NORTHROP GRUMMAN CORPORATION
    2980 Fairview Park Drive
    Falls Church, Virginia 22042
    ________________________________________________
    Explanatory Note:

    This Amendment No. 1 to the Annual Report on Form 11-K (this “Amendment”) is being filed solely to include the conformed signature of the independent registered public accounting firm, which had been inadvertently omitted from the original Form 11-K, as filed with the U.S. Securities and Exchange Commission on June 11, 2026 (the “Original Form 11-K”). Except as described above, this Amendment does not amend, update or change any other information in the Original Form 11-K.



    Northrop Grumman Savings Plan
    Financial Statements as of December 31, 2025 and 2024,
    and for the Year Ended December 31, 2025,
    Supplemental Schedule as of December 31, 2025,
    and Report of Independent Registered Public Accounting Firm




    NORTHROP GRUMMAN SAVINGS PLAN
    TABLE OF CONTENTS
     Page
    REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
    1
    FINANCIAL STATEMENTS
    Statements of Net Assets Available for Benefits as of December 31, 2025 and 2024
    2
    Statement of Changes in Net Assets Available for Benefits for the Year Ended December 31, 2025
    3
    Notes to Financial Statements
    4
    SUPPLEMENTAL SCHEDULE
    Form 5500, Schedule H, Part IV, Line 4i, Schedule of Assets (Held at End of Year) as of December 31, 2025
    13
    SIGNATURE
    14
    EXHIBIT INDEX
    15
     




    REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
    To the Plan Participants and Plan Administrator of
    Northrop Grumman Savings Plan

    Opinion on the Financial Statements
    We have audited the accompanying statements of net assets available for benefits of Northrop Grumman Savings Plan (the “Plan”) as of December 31, 2025 and 2024, the related statement of changes in net assets available for benefits for the year ended December 31, 2025, and the related notes (collectively referred to as the “financial statements”). In our opinion, the financial statements present fairly, in all material respects, the net assets available for benefits of the Plan as of December 31, 2025 and 2024, and the changes in net assets available for benefits for the year ended December 31, 2025, in conformity with accounting principles generally accepted in the United States of America.

    Basis for Opinion
    These financial statements are the responsibility of the Plan's management. Our responsibility is to express an opinion on the Plan's financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Plan in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
    We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.
    Report on Supplemental Schedule
    The supplemental schedule of assets (held at end of year) as of December 31, 2025 has been subjected to audit procedures performed in conjunction with the audit of the Plan's financial statements. The supplemental schedule is the responsibility of the Plan's management. Our audit procedures included determining whether the supplemental schedule reconciles to the financial statements or the underlying accounting and other records, as applicable, and performing procedures to test the completeness and accuracy of the information presented in the supplemental schedule. In forming our opinion on the supplemental schedule, we evaluated whether the supplemental schedule, including its form and content, is presented in compliance with the Department of Labor's Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974. In our opinion, such schedule is fairly stated, in all material respects, in relation to the financial statements as a whole.

    /s/ DELOITTE & TOUCHE LLP
    McLean, VA
    June 11, 2026

    We have served as the auditor of the Plan since at least 1994; however, an earlier year could not be reliably determined.


    1


    NORTHROP GRUMMAN SAVINGS PLAN
    STATEMENTS OF NET ASSETS AVAILABLE FOR BENEFITS
    December 31
    $ in thousands20252024
    Assets:
    Investments:
    Plan interest in Northrop Grumman Defined Contribution Plans Master Trust (Note 3)$39,301,997 $35,040,516 
    Investment in BrokerageLink account—at fair value4,641,343 4,024,861 
    Short-term investment fund—at fair value143 902 
    Total investments43,943,483 39,066,279 
    Receivables:
    Notes receivable from participants 339,104 329,923 
    Employer contributions74,657 77,567 
    Participant contributions— 8 
    Total receivables413,761 407,498 
    Total assets44,357,244 39,473,777 
    Liabilities:
    Accrued expenses2,059 1,923 
    Net assets available for benefits$44,355,185 $39,471,854 
    The accompanying notes are an integral part of these financial statements.
    2


    NORTHROP GRUMMAN SAVINGS PLAN
    STATEMENT OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS
    Year Ended
    $ in thousandsDecember 31, 2025
    Additions:
    Investment income:
    Plan interest in the Northrop Grumman Defined Contribution Plans Master Trust$5,952,669 
    Other investments:
    Net appreciation in fair value of other investments515,172 
    Dividends104,944 
    Interest30,138 
    Total investment income6,602,923 
    Interest income on notes receivable from participants24,742 
    Contributions:
    Participant contributions1,415,870 
    Employer contributions664,002 
    Rollover contributions139,573 
    Total contributions2,219,445 
    Total additions8,847,110 
    Deductions:
    Benefits paid to participants3,950,883 
    Expenses12,896 
    Total deductions3,963,779 
    Increase in net assets4,883,331 
    Net assets available for benefits
    Beginning of year39,471,854 
    End of year$44,355,185 
    The accompanying notes are an integral part of these financial statements.
    3


    NORTHROP GRUMMAN SAVINGS PLAN
    NOTES TO FINANCIAL STATEMENTS

    1. DESCRIPTION OF THE PLAN
    The following description of the Northrop Grumman Savings Plan (the “Plan”) provides only general information. Participants should refer to the Plan document for a more complete description of the Plan’s provisions.
    General
    The Plan is a qualified profit-sharing and stock bonus plan that includes an employee stock ownership plan sponsored by Northrop Grumman Corporation (the “Company” or “Plan sponsor”). The Plan was established February 1, 1962.
    The Plan's Benefit Plans Administrative and Investment Committees control and manage the operation of the Plan. State Street Bank and Trust Company (“State Street” or the “Trustee”) serves as Trustee of the Plan. The Plan is subject to the provisions of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”).
    Plan investments are participant directed. The Plan holds an interest in the Northrop Grumman Defined Contribution Plans Master Trust (the “DC Master Trust”). It also holds investments in a short-term investment fund at the Trustee, and participant-directed brokerage accounts held in the Fidelity Brokerage Services LLC BrokerageLink Account (“BrokerageLink Account”).
    Eligibility
    The Plan covers substantially all hourly and salaried employees of the Company who are at least 18 years old, are citizens or residents of the United States of America (“U.S.”), are not covered under another plan, and whose pay is determined in accordance with the U.S Internal Revenue Code of 1986, as amended (the “Code”) and processed on a U.S. payroll system of the Company.
    Contributions
    Participant contributions are subject to certain limitations imposed by the Code. Contributions can be made on a tax-deferred (pre-tax) basis, after-tax basis or to a Roth 401(k) on an after-tax basis, or a combination thereof through payroll withholdings. Participants may also rollover benefit payments from certain pension plans sponsored by the Company and other qualified plans into the Plan. Active participants may change the percentage of their contributions. First time eligible employees (newly hired, rehired, and certain transfers) are automatically enrolled into the Plan approximately 45 days after the date of hire, rehire, or transfer unless an alternative election is made. Contributions for those automatically enrolled in the Plan increase by one percent each year up to a maximum percentage specified by the Plan sponsor and relate to pre-tax and Roth 401(k) contributions only.
    For employees hired before April 1, 2016, the employer’s matching contributions are generally as follows:
    Employee ContributionEmployer
    Match
    First 2% of eligible compensation
    100 %
    Next 2% of eligible compensation
    50 %
    Next 4% of eligible compensation
    25 %
    Contributions over 8%
    — 
    Certain employees hired or rehired between July 1, 2008 and April 1, 2016, and who meet the applicable Plan requirements, are also eligible to receive an additional employer contribution known as a Retirement Account Contribution ("RAC"). The RAC contribution is generally made annually in the first quarter of the following year. Generally, participants must be employed by the Company on the last day of the plan year to be eligible to receive the RAC contribution. For the year ended December 31, 2025, the Company made a $49.3 million RAC contribution which was remitted to the Plan in March 2026. The amount is generally determined as a percentage of eligible compensation in accordance with the following table:
    Participant’s Age as of December 31, 2016Percentage of
    Compensation
    Under 353 %
    35 – 494 %
    50 or older5 %
    4


    Certain employees who joined the company as part of the June 2018 Orbital ATK, Inc acquisition, who were hired between January 1, 2007 and June 5, 2018, are also eligible to receive a Non-Elective Contribution ("NEC"). The NEC contribution is generally made annually in the first quarter of the following year. Generally, participants must be employed by the Company on the last day of the plan year to be eligible to receive the NEC contribution. The NEC contribution ranges from 2.5 percent to 4.0 percent of eligible compensation based on age and years of service. For the year ended December 31, 2025, the Company made a $25.3 million NEC contribution to the Plan, which was remitted to the Plan in March 2026.
    For most employees hired after April 1, 2016, and certain employees who did not previously participate in a Company sponsored pension plan or receive a RAC or a NEC, the employer’s matching contributions are generally as follows:
    Employee ContributionEmployer
    Match
    First 4% of eligible compensation
    100 %
    For employees with less than 5 years of service:
    Next 4% of eligible compensation
    50 %
    Contributions over 8%
    — 
    For employees with 5 or more years of service:
    Next 6% of eligible compensation
    50 %
    Contributions over 10%
    — 
    Participant Accounts
    Individual accounts are maintained for each Plan participant. Each participant account is credited with participant and employer contributions and an allocation of any Plan earnings. Each participant account is charged with withdrawals and an allocation of any Plan losses and administrative expenses. Allocations are based on participant units. Participants are entitled to the net of these contributions, withdrawals and allocations to the extent of their vesting in the account.
    Vesting
    Plan participants are fully vested in the balance of their accounts from employee contributions and earnings thereon. Plan participants, other than participants covered under certain collective bargaining agreements, become fully vested in employer matching contributions, and earnings thereon, upon completion of three years of service. Plan participants who are eligible for RAC and NEC fully vest in those employer contributions, and earnings thereon, upon completion of three years of service.
    Investment Options
    Plan participants direct their employee and employer contributions to be invested in the investment funds described below. If direction is not provided by a participant, contributions are generally invested in an appropriate Retirement Path fund. The investment funds are managed by professional investment managers appointed by Plan management.
    Subject to certain restrictions, participants may generally change their investment elections and transfer existing account balances between investment funds daily.
    Contributions deposited into each investment fund are used to purchase units of that fund based on unit values that are updated daily prior to any Plan transactions. Plan transactions include contributions, withdrawals, distributions and transfers. The value of each participant’s account within each fund depends on two factors: the number of units purchased to date and the current value of each unit.
    U.S. Equity Fund — The U.S. Equity Fund primarily consists of holdings in large and medium-sized U.S. company stocks. The fund’s objective is to achieve a high total return through long-term growth of capital and the reinvestment of current income.
    U.S. Fixed-Income Fund — The U.S. Fixed-Income Fund primarily consists of holdings in marketable, fixed-income securities rated within the four highest investment grades assigned by Moody’s Investor Services or Standard & Poor’s Corporation, U.S. Treasury or federal agency obligations, or cash equivalent instruments. The fund invests in a range of fixed-income securities that mature, on average, in eight to ten years.
    Stable Value Account — Investments in the Stable Value Account primarily include synthetic guaranteed investment contracts (“synthetic GICs”), cash and cash equivalents. See Note 5 for further information on synthetic GICs.
    5


    Northrop Grumman Fund (“NG Stock Fund”) — The NG Stock Fund invests primarily in Northrop Grumman Corporation common stock.
    Balanced Fund — The Balanced Fund is designed to provide investors with a diversified portfolio consisting of targeted proportions of fixed-income securities (35 percent), U.S. equities (45 percent), and international equities (20 percent). The fund seeks to exceed the return of the bond market and approach the return of the stock market, but with less risk than an investment solely in equities.
    International Equity Fund — The International Equity Fund consists of stocks of a diversified group of companies in developed countries outside of the U.S. The fund’s objectives are capital appreciation over the long term, along with current income (dividends).
    Small Cap Fund — The Small Cap Fund consists of a diversified group of U.S. companies with lower market capitalization and higher expected revenue growth than the large, well-established companies that make up the S&P 500 Index. The fund seeks to provide capital appreciation over the long term, rather than current income.
    Emerging Markets Fund — The Emerging Markets Fund consists of a diversified portfolio of stocks issued by companies based in developing countries. The fund’s objective is capital appreciation over the long term.
    Retirement Path Portfolios — Each retirement path is a broadly diversified portfolio of funds consisting of equities, fixed-income securities and other investments tailored to the participants' investment time horizons. The name of each portfolio reflects the year when the participants expect to retire or draw interest and/or principal out of their accounts. The portfolio consists of eleven Retirement Path funds spanning to 2070.
    Apart from the Stable Value Account and NG Stock Fund, the large majority of the other funds are included in common/collective trust (“CCT”) funds. These funds manage pooled trust accounts, which group assets together to develop generally larger and more diversified portfolios. These funds may also include a short-term investment fund.
    Participants may also direct their investments through a BrokerageLink Account sponsored by an affiliate of the Plan's recordkeeper, Fidelity, which offers a range of investment options including mutual funds, U.S. equities, and fixed-income securities.
    Notes Receivable from Participants
    Participants may borrow from their individual accounts in accordance with the Plan document, with loans from a minimum of $1,000 up to a maximum equal to 1) the lesser of $50,000 reduced by the highest outstanding loan balance over the past 12 months, or 2) 50 percent of their vested account balance. Loans are secured by the balance in the participant's account and are issued at an interest rate set at the prime rate plus one percent. Repayments are made from payroll deductions (for active employees) or other forms of payment (for former employees or employees on a leave of absence). As of December 31, 2025, outstanding participant loans had maturities through 2040 and interest rates ranging from 4.25 percent to 11.5 percent. As of December 31, 2024, outstanding participant loans had maturities through 2039 and interest rates ranging from 3.25 percent to 11.5 percent.
    Payment of Benefits
    Upon termination of employment with the Company (including termination due to death, disability, or retirement), participants may receive a lump-sum payment of their entire account balance, installment payments, or the total account balance as an annuity, net of any outstanding loan balances. Otherwise, distributions generally begin on a participant's mandatory commencement date. Participants may roll over account balances to individual retirement accounts or another employer’s qualified retirement plan.
    Distributions from the NG Stock Fund may be paid in cash, stock, or a combination of the two, depending on the participant’s election.
    Withdrawals
    Participants may withdraw all or a portion of their vested account balance in accordance with the Plan document, which provides different rules for withdrawals based on whether or not the participant has reached age 591/2.
    Forfeited Accounts
    As of December 31, 2025 and 2024, Plan forfeitures available were $4.6 million and $3.9 million, respectively. Forfeited amounts may be used to reduce employer contributions or to offset Plan expenses. During the year ended December 31, 2025, employer contributions were reduced by $27.4 million due to forfeitures. No forfeitures were used to offset Plan expenses during 2025.
    6


    2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
    Basis of Accounting
    The accompanying financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”).
    Use of Estimates
    The preparation of financial statements in accordance with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities and changes therein, and disclosure of contingent assets and liabilities. Actual results could differ materially from those estimates.
    Risks and Uncertainties
    The Plan provides various investment options to its participants. Investment securities are exposed to various risks, including interest rate and credit risk, overall market volatility, market risks including global events such as pandemics or international conflicts, and risks related to U.S. and foreign government instability. Due to the level of risk associated with certain investment securities, it is reasonably possible that changes in the values of investment securities may occur in the near term, and those changes could materially affect the amounts reported in the financial statements.
    Fair Value of Financial Instruments
    The Plan and the DC Master Trust measure the fair value of its financial instruments using observable and unobservable inputs. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect internal market assumptions. Assets are classified in their entirety based on the lowest level of input that is significant to the fair value measurement.
    These two types of inputs create the following fair value hierarchy:
    Level 1 - Quoted prices for identical instruments in active markets.
    Level 2 - Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations whose inputs are observable or whose significant value drivers are observable.
    Level 3 - Significant inputs to the valuation model are unobservable.
    Investment Valuation and Income Recognition
    The investments held by the Plan and the DC Master Trust are stated at fair value with the exception of synthetic GICs in the Stable Value Account of the DC Master Trust, which are stated at contract value. Fair value of a financial instrument is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (see Note 4). The synthetic GICs are stated at contract value because contract value is the amount that would be received by participants if they were to initiate permitted transactions under the terms of the Plan. Contract value is equal to the value of initial deposited principal, plus accumulated interest and additional deposits, minus withdrawals and expenses (see Note 5). Plan management provides direction and oversight of the valuation process. The fair value of Plan and DC Master Trust investments is determined as follows:
    Investments in mutual funds and U.S. equities, which include common stocks, are valued at the last reported sales price on the active market on which the securities are traded on the last business day of the plan year. Investments in CCT funds are valued based on the net asset value (“NAV”) derived by investment managers, as a practical expedient. The short-term investment fund is not an exchange-traded fund, however, the price per unit is published and represents the actual price at which the units held in the fund can be bought or sold. Fixed-income securities are valued based on broker quotes or model-derived valuations.
    All securities and cash equivalents are quoted in the local currency and then converted into U.S. dollars. Purchases and sales of securities are recorded on a trade-date basis. Interest income is recorded on the accrual basis. Dividends are recorded on the ex-dividend date. Broker commissions, transfer taxes, and other charges and expenses incurred in connection with the purchase, sale, or other disposition of securities or other investments are added to the cost of such securities or other investments, or are deducted from the proceeds of the sale or other disposition thereof, as appropriate. Taxes, if any, on fund assets, or on any gain resulting from the sale or other disposition of such assets, or on the earnings of the funds, are apportioned among the participants whose interests in the Plan are affected, and the share of such taxes apportioned to each such person is charged against their account in the Plan.
    The Trustee, in performing any required valuations or calculations, relies on the prices provided by pricing sources, the investment managers, Plan management or the participant’s broker as a certification as to the value.
    7


    The DC Master Trust allocates investment income, realized gains and losses, and unrealized appreciation and depreciation on the underlying securities to the participating plans daily based upon the market value of each plan’s investment. The realized gain or loss on investments is the difference between the proceeds received and the average cost of investments sold. The unrealized appreciation or depreciation is the aggregate difference between the current fair market value and the cost of investments.
    Notes Receivable from Participants
    Participant loans are measured at their unpaid principal balance plus accrued interest.
    Expenses
    Plan expenses are paid by the Plan or the Plan sponsor as provided in the Plan document. Fees incurred by the Plan for investment management services of $3.5 million are presented as a reduction to investment income in the Statement of Changes in Net Assets Available for Benefits for the year ended December 31, 2025.
    Payment of Benefits
    Benefit payments to participants are recorded upon distribution. Amounts allocated to accounts of participants who have elected to withdraw funds from the Plan but have not yet been paid were $7.3 million and $6.0 million at December 31, 2025 and 2024, respectively. These amounts continued to accrue investment earnings (losses) until paid.
    3. INVESTMENTS
    The Plan's total divided interest represents 99 percent of total net assets reported by the Trustee of the DC Master Trust as of December 31, 2025 and 2024. The remaining interest in the investments held by the DC Master Trust belongs to the Northrop Grumman Financial Security and Savings Program.
    The net assets of the DC Master Trust and the Plan's interest in Master Trust balances as of December 31, 2025 and 2024, are as follows:
    Master Trust Balances
    Plan's Interest in Master Trust Balances
    $ in thousands2025202420252024
    Assets
    At fair value:
    Cash equivalents and short-term investment fund$78,177 $93,059 $77,001 $91,680 
    U.S. equities4,048,009 3,594,037 4,030,621 3,576,126 
    Common/collective trust funds32,627,651 28,679,632 32,193,443 28,262,363 
    Collateral held under securities lending agreements200,064 693,505 197,935 685,586 
    Total investments at fair value36,953,901 33,060,233 36,499,000 32,615,755 
    At contract value:
    Synthetic guaranteed investment contracts3,052,155 3,161,481 3,005,171 3,112,812 
    Total investments at contract value3,052,155 3,161,481 3,005,171 3,112,812 
    Dividends, interest, taxes and other receivables213 284 210 281 
    Total assets40,006,269 36,221,998 39,504,381 35,728,848 
    Liabilities
    Due to broker for securities purchased and other payables4,516 2,796 4,449 2,746 
    Collateral held under securities lending agreements200,064 693,505 197,935 685,586 
    Total liabilities204,580 696,301 202,384 688,332 
    Net assets of the DC Master Trust$39,801,689 $35,525,697 $39,301,997 $35,040,516 
    8


    Net investment income for the DC Master Trust for the plan year ended December 31, 2025, is as follows:
    $ in thousands2025
    Investment income
    Net appreciation in value of investments$5,867,005 
    Interest95,113 
    Dividends65,793 
    Other income2,255 
    Investment manager fees(3,597)
    Net investment income$6,026,569 
    4. FAIR VALUE MEASUREMENTS
    Certain investments that are measured at fair value using NAV per share (or its equivalent) as a practical expedient are not required to be categorized in the fair value hierarchy tables. The total fair value of these investments is included in the tables below to permit reconciliation of the fair value hierarchy to amounts presented in the investments footnote (Note 3). These investments have no unfunded commitments, redemption notice periods greater than seven days or other redemption restrictions. As of December 31, 2025 and 2024, there were no investments expected to be sold at a value materially different than NAV.
    The table below sets forth the fair value of the investments by level, measured on a recurring basis and held by the DC Master Trust as of December 31, 2025:
    2025
    $ in thousandsLevel 1Level 2Total
    DC Master Trust at fair value
    Cash equivalents and short-term investment fund$— $78,177 $78,177 
    U.S. equities4,048,009 — 4,048,009 
    Collateral held under securities lending agreements— 200,064 200,064 
    Common/collective trust funds valued using NAV as a practical expedient32,627,651 
    Total DC Master Trust at fair value$4,048,009 $278,241 $36,953,901 
    The table below sets forth the fair value of the BrokerageLink Account and short-term investment fund, by level, measured on a recurring basis, and held by the Plan as of December 31, 2025:
    2025
    $ in thousandsLevel 1Level 2Total
    Other Plan investments
    BrokerageLink Account$4,577,861 $63,482 $4,641,343 
    State Street Bank and Trust Company short-term investment fund— 143 143 
    Total other Plan investments$4,577,861 $63,625 $4,641,486 
    9


    The table below sets forth the fair value of the investments by level, measured on a recurring basis and held by the DC Master Trust as of December 31, 2024:
    2024
    $ in thousandsLevel 1Level 2Total
    DC Master Trust at fair value
    Cash equivalents and short-term investment fund$18 $93,041 $93,059 
    U.S. equities3,594,037 — 3,594,037 
    Collateral held under securities lending agreements— 693,505 693,505 
    Common/collective trust funds valued using NAV as a practical expedient28,679,632 
    Total DC Master Trust at fair value$3,594,055 $786,546 $33,060,233 
    The table below sets forth the fair value of the BrokerageLink Account and short-term investment fund, by level, measured on a recurring basis, and held by the Plan as of December 31, 2024:
    2024
    $ in thousandsLevel 1Level 2Total
    Other Plan investments
    BrokerageLink Account$3,968,127 $56,734 $4,024,861 
    State Street Bank and Trust Company short-term investment fund— 902 902 
    Total other Plan investments$3,968,127 $57,636 $4,025,763 
    5. INTEREST IN SYNTHETIC GUARANTEED INVESTMENT CONTRACTS
    Synthetic guaranteed investment contracts consist of fully benefit-responsive wrapper contracts that provide specified interest rates. Realized and unrealized gains and losses on the underlying assets are not reflected immediately in the net assets of the Plan, but are amortized as adjustments to the future interest-crediting rate over a period equal to or less than the duration of the underlying assets. Primary variables affecting the future crediting rate of the wrapper contracts include the current yield of underlying assets, the duration of underlying assets, and the difference between the market value and contract value of underlying assets.
    Investments held in synthetic guaranteed investment contracts (at contract value) totaled $3.1 billion and $3.2 billion as of December 31, 2025 and 2024, respectively.
    Certain events, such as Plan termination or a plan merger initiated by the Plan sponsor, may limit the ability of the Plan to transact at contract value or may allow for the termination of the wrapper contract at less than contract value. Plan management believes that the occurrence of events that may limit the ability of the Plan to transact at less than contract value is not probable.
    6. THIRD PARTY BORROWINGS
    The DC Master Trust participates in a securities lending program with State Street through the separately managed Stable Value Account. The program allows State Street to loan securities, which are assets of the DC Master Trust, to approved borrowers. Such assets could be subject to sale restrictions in the event security lending agreements are terminated and the securities have not been returned to the DC Master Trust. DC Master Trust assets on loan to third-party borrowers under security lending agreements are as follows:
    December 31
    $ in thousands20252024
    Underlying securities of synthetic guaranteed investment contracts$195,889 $679,519 
    10


    State Street requires borrowers, pursuant to a security loan agreement, to deliver collateral to secure each loan. The initial collateral required is 102 percent of the fair value of U.S. securities borrowed and 105 percent for foreign equity securities borrowed. The DC Master Trust bears the risk of loss with respect to any unfavorable change in fair value of the invested cash collateral. However, the borrower bears the risk of loss related to the decrease in the fair value of the securities collateral and, therefore, may have to deliver additional cash or securities to maintain the required collateral. In U.S. markets, State Street generally enters into a netting arrangement with a borrower which permits the netting of mark-to-market exposure for transactions within the lending program with that borrower. Such arrangements would cover lending transactions with the borrower and reverse repurchase agreements of cash collateral involving investment of the collateral. State Street may also negotiate a right of offset in the event of borrower default. In the event of borrower default, State Street indemnifies the DC Master Trust against any loss of the amount loaned. As of December 31, 2025, cash and non-cash collateral associated with securities on loan totaled $167 million and $33 million, respectively. As of December 31, 2024, cash and non-cash collateral associated with securities on loan totaled $603 million and $91 million, respectively. Cash collateral primarily consists of short-term investment funds. Non-cash collateral consists of fixed-income securities. All of the securities on loan are collateralized at more than 102 percent.
    7. EXEMPT PARTY-IN-INTEREST TRANSACTIONS
    Party-in-interest transactions through the DC Master Trust include the purchase and sale of investments managed by affiliates of the Plan's Trustee and transactions involving Northrop Grumman Corporation common stock. The NG Stock Fund within the DC Master Trust held 7.1 million and 7.7 million shares of common stock of the Company with a fair value of $4.0 billion and $3.6 billion at December 31, 2025 and 2024, respectively. The Plan’s interest in the net assets of the NG Stock Fund was approximately 99.6 percent and 99.5 percent at December 31, 2025 and 2024, respectively. During 2025, the NG Stock Fund earned dividends of $66 million from its investment in Northrop Grumman Corporation common stock.
    State Street affiliates managed $0.1 million and $0.9 million of Plan assets held in a short-term investment fund as of December 31, 2025 and 2024, respectively. The Plan paid $0.4 million to the Trustee in fees during the year ended December 31, 2025.
    The DC Master Trust utilized various investment managers to manage its net assets. These net assets may be invested into funds also managed by the investment managers. Therefore, these transactions qualify as party-in-interest transactions. The Plan had transactions with the Trustee’s short-term investment fund, a liquidity pooled fund in which participation commences and terminates on a daily basis. In Plan management’s opinion, fees paid during the year for services rendered by parties-in-interest were based upon customary and reasonable rates for such services. The Plan also issues loans to participants, which are secured by the vested balances in the participants' accounts.
    8. PLAN TERMINATION
    Although it has not expressed any intention to do so, the Company has the right under the Plan provisions to discontinue its contributions at any time and to terminate the Plan subject to ERISA provisions. In the event of a Plan termination, participants will become fully vested in their accounts.
    9. FEDERAL INCOME TAX STATUS
    The Plan obtained its latest determination letter dated August 31, 2021, in which the IRS determined that the Plan’s terms at the time of the determination letter application were in compliance with applicable sections of the Code and, therefore, is exempt from taxation. In December 2016, the IRS began publishing a Required Amendments List for individually designed plans which specifies changes in qualification requirements. The list is published annually and requires plans to be amended for each item on the list, as applicable, to retain its tax-exempt status. Management believes the Plan and related trust are currently designed, have been amended, and are being operated in compliance with the applicable requirements of the Code. Therefore, no provision for income taxes has been included in the Plan’s financial statements.
    11


    10. RECONCILIATION OF FINANCIAL STATEMENTS TO FORM 5500
    A reconciliation of net assets available for benefits per the financial statements to Form 5500 is as follows:
    December 31
    $ in thousands20252024
    Net assets available for benefits per the financial statements$44,355,185 $39,471,854 
    Less amounts allocated to withdrawing participants(7,281)(6,049)
    Net assets available for benefits per Form 5500$44,347,904 $39,465,805 
    A reconciliation of benefits paid to participants per the financial statements to Form 5500 for the year ended December 31, 2025, is as follows:
    $ in thousands
    Benefits paid to participants per the financial statements$3,950,883 
    Add amounts allocated to withdrawing participants at December 31, 20257,281 
    Less amounts allocated to withdrawing participants at December 31, 2024(6,049)
    Benefits paid to participants per Form 5500$3,952,115 
    Amounts allocated to withdrawing participants are recorded on Form 5500 for benefit claims that have been processed and approved for payment prior to December 31, 2025 and 2024, but not yet paid as of that date.

    ******

    12


    NORTHROP GRUMMAN SAVINGS PLAN

    FORM 5500, SCHEDULE H, PART IV, LINE 4i,
    SCHEDULE OF ASSETS (HELD AT END OF YEAR)
    AS OF DECEMBER 31, 2025
    $ in thousands
     Identity of Issuer, Borrower,
    Lessor, or Similar Party
    Description of Investment,
    Including Maturity Date, Rate of
    Interest, Collateral, and Par or
    Maturity Value
    CostCurrent Value
    *Northrop Grumman Defined Contribution Plans Master TrustParticipation in Northrop Grumman Defined Contribution Plans Master Trust**$39,301,997 
    *Fidelity Brokerage Services LLCBrokerageLink Account**4,641,343 
    *State Street Bank and Trust CompanyState Street Bank and Trust Company short-term investment fund**143 
    *Plan Participants
    Participant loans (maturing from 2026 to 2040 at interest rates ranging from 4.25 percent to 11.5 percent)
    **339,104 
    Total$44,282,587 
    * Party-in-interest
    ** Cost information is not required for participant-directed investments and loans, and therefore is not included.

    13


    SIGNATURE
    Pursuant to the requirements of the Securities and Exchange Act of 1934, the trustees (or other persons who administer the employee benefit plan) have duly caused this annual report to be signed on its behalf by the undersigned hereunto duly authorized.
     
     NORTHROP GRUMMAN SAVINGS PLAN
    Dated:June 11, 2026 By: /s/ Michael A. Hardesty
       Michael A. Hardesty
    Chair, Audit Subcommittee of the Benefit Plans Administrative Committee

    14



    EXHIBIT INDEX
    *23
    Consent of Independent Registered Public Accounting Firm
    *Filed with this report

    15
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    Issued on behalf of VisionWave Holdings, Inc. At Eurosatory 2026 in Paris, VisionWave Holdings, Inc. (NASDAQ:VWAV) unveiled two new UK-built autonomous platforms — the TALON™ aerial system and the D-FLY™ counter-drone interceptor — and showed them operating together inside its STRATUM™ battlefield-autonomy ecosystem. NEW YORK, June 23, 2026 (GLOBE NEWSWIRE) -- American News Group — Drone warfare has rewritten the modern battlefield, and the defense industry’s biggest buyers are no longer shopping for one-off gadgets — they want systems that talk to each other. At Eurosatory 2026 in Paris on June 23, VisionWave Holdings, Inc. (NASDAQ:VWAV) made its pitch for exactly that, unveiling two co

    6/23/26 10:44:06 AM ET
    $VWAV
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    Computer Software: Prepackaged Software
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    Northrop Grumman Announces Date for Second Quarter 2026 Financial Results and Webcast

    FALLS CHURCH, Va., June 18, 2026 (GLOBE NEWSWIRE) -- Northrop Grumman Corporation (NYSE:NOC) announced today that its second quarter 2026 financial results will be released on Tuesday, July 21, 2026, prior to the market opening. The earnings announcement, and accompanying earnings presentation, will be available on the company's website at http://investor.northropgrumman.com. Earnings Call WebcastThe company will host a live, audio only, earnings call webcast at 9:30 a.m. ET the same day. This webcast can be accessed on the company's website at http://investor.northropgrumman.com. A replay of the webcast will be available shortly after the call and will remain available for a limited time

    6/18/26 9:00:38 AM ET
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    Industrial Machinery/Components
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    CPI Aerostructures is Awarded Follow-on Contract from Northrop Grumman for Welded Assemblies for E-2D Advanced Hawkeye

    EDGEWOOD, N.Y., May 26, 2026 (GLOBE NEWSWIRE) -- CPI Aerostructures, Inc. ("CPI Aero®" or the "Company") (NYSE:CVU) announced that its wholly owned subsidiary, Welding Metallurgy, Inc. (WMI) has reached an Agreement with Northrop Grumman Corporation (NYSE:NOC) and has been awarded follow-on orders for welded structure assemblies for the E-2D Advanced Hawkeye (E-2D) aircraft. Under the terms of these new orders, WMI will manufacture more than 20 different complex welded assemblies in support of the production of E-2D aircraft with deliveries through 2028. "CPI Aero is proud to supply complex welded assemblies to Northrop Grumman under our NADCAP certification for fusion and resistance weld

    5/26/26 8:30:00 AM ET
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    Military/Government/Technical
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    The Quiet Talent Migration Reshaping the U.S. Commercial Space Sector

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    5/7/26 12:25:00 PM ET
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    Military UAV Sector Forecast to Surpass $40+ Billion as Modern Warfare Evolves

    NEW YORK, Feb. 19, 2026 (GLOBE NEWSWIRE) -- Market News Updates News Commentary - Unmanned aerial vehicles (UAVs), commonly known as drones, have become a transformative technology in modern defense and military operations, reshaping strategies from reconnaissance to precision strike capabilities. Military drones offer armed forces enhanced situational awareness, reduced risk to personnel, and cost-efficient mission profiles across surveillance, target acquisition, logistics, and electronic warfare. As autonomous systems incorporating artificial intelligence and advanced sensor suites continue to mature, they are increasingly integral to networked battlefield operations and force multiplie

    2/19/26 8:30:00 AM ET
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    Amendment: SEC Form SC 13G/A filed by Northrop Grumman Corporation

    SC 13G/A - NORTHROP GRUMMAN CORP /DE/ (0001133421) (Subject)

    11/13/24 12:38:27 PM ET
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    Industrial Machinery/Components
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    SEC Form SC 13G/A filed by Northrop Grumman Corporation (Amendment)

    SC 13G/A - NORTHROP GRUMMAN CORP /DE/ (0001133421) (Subject)

    2/12/24 10:22:08 AM ET
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    Industrial Machinery/Components
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    SEC Form SC 13G/A filed by Northrop Grumman Corporation (Amendment)

    SC 13G/A - NORTHROP GRUMMAN CORP /DE/ (0001133421) (Subject)

    1/30/24 1:13:59 PM ET
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    Northrop Grumman Announces Date for Second Quarter 2026 Financial Results and Webcast

    FALLS CHURCH, Va., June 18, 2026 (GLOBE NEWSWIRE) -- Northrop Grumman Corporation (NYSE:NOC) announced today that its second quarter 2026 financial results will be released on Tuesday, July 21, 2026, prior to the market opening. The earnings announcement, and accompanying earnings presentation, will be available on the company's website at http://investor.northropgrumman.com. Earnings Call WebcastThe company will host a live, audio only, earnings call webcast at 9:30 a.m. ET the same day. This webcast can be accessed on the company's website at http://investor.northropgrumman.com. A replay of the webcast will be available shortly after the call and will remain available for a limited time

    6/18/26 9:00:38 AM ET
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    Northrop Grumman Board Declares Quarterly Dividend

    FALLS CHURCH, Va., May 19, 2026 (GLOBE NEWSWIRE) -- The board of directors of Northrop Grumman Corporation (NYSE:NOC) declared a quarterly dividend of $2.47 per share on Northrop Grumman common stock, payable June 17, 2026, to shareholders of record as of the close of business June 1, 2026. Northrop Grumman continues to execute a disciplined capital allocation strategy that prioritizes investments in the manufacturing capabilities and capacity needed to deliver differentiating technologies quickly for our customers. Northrop Grumman is a leading global aerospace and defense technology company. Our pioneering solutions equip our customers with the capabilities they need to connect and prot

    5/19/26 5:08:04 PM ET
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    Northrop Grumman Releases First Quarter 2026 Financial Results

    FALLS CHURCH, Va., April 21, 2026 (GLOBE NEWSWIRE) -- Northrop Grumman Corporation (NYSE:NOC) has released its first quarter 2026 financial results. A copy of the earnings release has been furnished in the company's Form 8-K filing and is also available on the company's investor relations website at http://investor.northropgrumman.com. Earnings Call Webcast As previously announced, Northrop Grumman will webcast its earnings conference call at 9:30 a.m. Eastern time today. A live audio broadcast of the conference call will be available on http://investor.northropgrumman.com. About Northrop Grumman Northrop Grumman is a leading global aerospace and defense technology company. Our pioneer

    4/21/26 7:18:51 AM ET
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