Company: NOC
Filing Date: 2025-05-27
Form Type: 424B5
Source: 0001193125-25-126289
Chunk: 2

Company: NORTHROP GRUMMAN CORP /DE/
Filing Date: 2025-05-27
Form: 424B5
Chunk 2
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. Copies of certain information filed by us with the SEC are also available on our website at www.northropgrumman.com. Our website is not a part of, and is not incorporated by reference into, this prospectus supplement or the accompanying prospectus, and you should not consider it a part of this prospectus supplement or the accompanying prospectus. Incorporation by reference We are “incorporating by reference” information into this prospectus supplement, which means that we can disclose important information to you by referring you to another document that has been filed separately with the SEC. The information incorporated by reference is considered to be part of this prospectus supplement, and information that we file later with the SEC will automatically update and supersede the information contained in documents filed earlier with the SEC or contained in this prospectus supplement. This means that you must look at all of the SEC filings that we incorporate by reference to determine if any of the statements in this prospectus supplement or in any document previously incorporated by reference have been modified or superseded. We incorporate by reference in this prospectus supplement the documents listed below (File No. 001-16411)and any future filings made by us with the SEC under Section 13(a), 13(c), 14 or 15(d) of the Exchange Act, after the initial filing of this prospectus supplement and prior to the time that the offering is completed (in each case, other than those documents or the portions of those documents not deemed to be filed):

You may obtain copies, without charge, of documents incorporated by reference in this prospectus supplement, by requesting them in writing or by telephone from us as follows: Jennifer C. McGarey Corporate Vice President and Secretary 2980 Fairview Park Drive Falls Church, Virginia 22042 (703) 280-2900 Exhibits to the filings will not be sent unless those exhibits have been specifically incorporated by reference in this prospectus supplement. S-2

Forward-looking statements and important factors This prospectus supplement, the accompanying prospectus and the documents incorporated by reference herein or therein contain statements that constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Words such as “will,” “expect,” “anticipate,” “intend,” “may,” “could,” “should,” “plan,” “project,” “forecast,” “believe,” “estimate,” “guidance,” “outlook,” “trends,” “goals” and similar expressions generally identify these forward