Company: NOC
Filing Date: 2025-05-28
Form Type: 424B5
Source: 0001193125-25-129530
Chunk: 23

Company: NORTHROP GRUMMAN CORP /DE/
Filing Date: 2025-05-28
Form: 424B5
Chunk 23
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| • |     | DTC is a limited-purpose trust company organized under the New York Banking Law, a “banking                                                                                                                                  
 organization” within the meaning of the New York Banking Law, a member of the Federal Reserve System, a “clearing corporation” within the meaning of the New York Uniform Commercial Code and a “clearing agency” registered 
 pursuant to the provisions of Section 17A of the Exchange Act.                                                                                                                                                               |

| • |     | DTC is a wholly owned subsidiary of The Depository Trust & Clearing Corporation, which we refer to as                                                                                                                               
 DTCC. DTCC is the holding company for DTC, National Securities Clearing Corporation and Fixed Income Clearing Corporation, all of which are registered clearing agencies. DTCC is owned by the users of its regulated subsidiaries. |

| • |     | DTC holds securities for its participants and facilitates the clearance and settlement of securities transactions            
 between participants through electronic computerized book-entry transfers and pledges between direct participants’ accounts. |

| • |     | Direct participants include U.S. and non-U.S. securities brokers and                                                                                                                                           
 dealers, banks, trust companies, clearing corporations and certain other organizations. Indirect access to the DTC system is available to other entities such as both U.S. and non-U.S. securities brokers and 
 dealers, banks, trust companies and clearing corporations that clear through or maintain a custodial relationship with a direct participant, either directly or indirectly.                                    |

We have provided the descriptions of the operations and procedures of DTC, Clearstream and Euroclear in this prospectus supplement solely as a matter of convenience. These operations and procedures are solely within the control of DTC, Clearstream and Euroclear, respectively, and are subject to change by them from time to time. Neither we, the underwriters nor the trustee takes any responsibility for these operations or procedures, and you are urged to contact DTC or their participants directly to discuss these matters. S-17

Neither we, the underwriters nor the trustee have any responsibility or liability for any aspect of the records of DTC, Clearstream or Euroclear, or any of their respective participants, relating to beneficial interests in any global note, including for payments of interest and premium, if any, on and principal of any global note. Neither we, the underwriters nor the trustee are responsible for maintaining, supervising or reviewing any of those records. The information in this section concerning DTC, Clearstream and Euroclear, and their