Company: NOC
Filing Date: 2025-05-14
Form Type: DEFA14A
Source: 0001133421-25-000029
Chunk: 0

Company: NORTHROP GRUMMAN CORP /DE/
Filing Date: 2025-05-14
Form: DEFA14A
Chunk 0
---
### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION

#### Washington, D.C. 20549

#### SCHEDULE 14A

#### Proxy Statement Pursuant to Section 14(a)

#### of the Securities Exchange Act of 1934
Filed by the Registrant

Filed by a Party other than the Registrant

Check the appropriate box:

| Preliminary Proxy Statement                                                     |
| Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) |
| Definitive Proxy Statement                                                      |
| Definitive Additional Materials                                                 |
| Soliciting Material Pursuant to §240.14a-12                                     |

#### Northrop Grumman Corporation
<div align='center'>(Name of Registrant as Specified In Its Charter)</div>

<div align='center'>(Name of Person(s) Filing Proxy Statement, if other than the Registrant)</div>

Payment of Filing Fee:

| No fee required.                                                                                    |
| Fee paid previously with preliminary materials.                                                     |
| Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11 |

May 14, 2025

Information Regarding the 2025 Annual Meeting of Shareholders

Northrop Grumman’s 2025 Annual Meeting of Shareholders will be held on Wednesday, May 21. If you hold Northrop Grumman shares through one of the company savings plans, read on for information about voting.

If you hold shares, you should have received an email notification from Broadridge on Monday, April 7 with a subject line of “ Vote Now! NORTHROP GRUMMAN CORPORATION Annual Meeting. ” It would have been sent to your email address on record (either your personal or company address) and includes instructions for viewing the 2025 Proxy Statement and Annual Report, as well as for voting your shares. You can also visit www. ProxyVote.com and follow the instructions given there, or vote through one of the other ways described in the 2025 Proxy Statement, which can be accessed on the company’s investor relations webpage ( investor.northropgrumman.com ).

The voting deadline for participants in the Northrop Grumman Savings Plan or the Northrop Grumman Financial Security and Savings Program for the company’s 2025 Annual Meeting of Shareholders is Sunday, May 18, at 11:59 p.m. Eastern time. The proposals scheduled to be presented and