Company: NOC
Filing Date: 2025-05-28
Form Type: 424B5
Source: 0001193125-25-129530
Chunk: 0

Company: NORTHROP GRUMMAN CORP /DE/
Filing Date: 2025-05-28
Form: 424B5
Chunk 0
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Filed Pursuant to Rule 424(b)(5)
Registration No. 333-270497 Prospectus supplement (To prospectus dated March 13, 2023) Northrop Grumman Corporation $500,000,000 4.650% Senior Notes due 2030 $500,000,000 5.250% Senior Notes due 2035 We are offering $500,000,000 of our 4.650% Senior Notes due 2030 (the “2030 notes”) and $500,000,000 of our 5.250% Senior Notes due 2035 (the “2035 notes” and, together, with the 2030 notes, the “notes”). The 2030 notes will mature on July 15, 2030 and the 2035 notes will mature on July 15, 2035, in each case, unless redeemed earlier. We will pay interest on the 2030 notes and the 2035 notes semi-annually in arrears on January 15 and July 15 of each year, beginning on January 15, 2026. Interest on the notes will accrue from May 29, 2025. We may redeem the notes of a series at our option, as a whole or in part, at any time or from time to time, at the redemption prices for such series described in this prospectus supplement. The redemption provisions are more fully described in this prospectus supplement in the section titled “ Description of notes— Optional redemption.” The notes will not be listed on any securities exchange. Currently, there is no public market for the notes. The notes will be unsecured senior obligations of Northrop Grumman Corporation, which we refer to as Northrop Grumman. The notes will rank equally and ratably in right of payment with all Northrop Grumman’s existing and future unsecured and unsubordinated indebtedness and senior in right of payment to any future indebtedness of Northrop Grumman that is subordinated to the notes. Investing in the notes involves risks. See the section entitled “ Risk factors ” beginning on page S-8 of this prospectus supplement and in our Annual Report on Form 10-Kfor our fiscal year ended December 31, 2024 incorporated by reference herein. Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or passed upon the adequacy or accuracy of this prospectus supplement or the accompanying prospectus. Any representation