Marianne Catherine Brown - 30 Sep 2025 Form 4 Insider Report for NORTHROP GRUMMAN CORP /DE/ (NOC)

Role: Director
Signature: /s/ Jennifer C. McGarey, Attorney-in-Fact
Issuer symbol: NOC
Transactions as of: 30 Sep 2025
Net transactions value: +$46,308
Form type: 4
Filing time: 01 Oct 2025, 13:45:47 UTC
Previous filing: 03 Jul 2025
Next filing: 03 Oct 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Brown Marianne Catherine	Director	2980 FAIRVIEW PARK DRIVE, FALLS CHURCH	/s/ Jennifer C. McGarey, Attorney-in-Fact	01 Oct 2025	0001804183

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	NOC	Common Stock	Award	$46,308	+76	+0.71%	$609.32	10,836	30 Sep 2025	Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents shares of common stock deferred into a stock unit account pursuant to the Northrop Grumman 2024 Long-Term Incentive Stock Plan (the "Plan") in a transaction exempt pursuant to Rule 16b-3.
F2	Represents shares of common stock, including dividends, held in a stock unit account pursuant to the Plan. Dividends earned on shares held in the stock unit account were exempt from Section 16 and not reportable under rule 16a-11.