NORTHROP GRUMMAN CORP /DE/ — Director's Dealing 2026

Feb 3, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: NORTHROP GRUMMAN CORP /DE/ (NOC)
CIK: 0001133421
Period of Report: 2026-02-02

Reporting Person: WELSH MARK A III (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-02	Common Stock	S	2	$676.14	Disposed	4296	Direct
2026-02-02	Common Stock	S	2	$677.43	Disposed	4294	Direct
2026-02-02	Common Stock	S	4	$680.49	Disposed	4290	Direct
2026-02-02	Common Stock	S	8	$681.68	Disposed	4282	Direct
2026-02-02	Common Stock	S	22	$682.47	Disposed	4260	Direct
2026-02-02	Common Stock	S	6	$683.79	Disposed	4254	Direct
2026-02-02	Common Stock	S	7	$684.67	Disposed	4247	Direct
2026-02-02	Common Stock	S	10	$685.33	Disposed	4237	Direct
2026-02-02	Common Stock	S	11	$686.43	Disposed	4226	Direct
2026-02-02	Common Stock	S	8	$687.64	Disposed	4218	Direct
2026-02-02	Common Stock	S	10	$688.51	Disposed	4208	Direct
2026-02-02	Common Stock	S	5	$689.31	Disposed	4203	Direct

Footnotes

F1: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 23, 2025.

F2: Represents the weighted average sale price of $676.14 rounded to the nearest hundredth. The highest price at which the shares were sold was $676.17 and the lowest price at which the shares were sold was $676.11. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote in this Form 4.

F3: Represents the weighted average sale price of $677.43 rounded to the nearest hundredth. The highest price at which the shares were sold was $677.84 and the lowest price at which the shares were sold was $677.02. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote in this Form 4.

F4: Represents the weighted average sale price of $680.49 rounded to the nearest hundredth. The highest price at which the shares were sold was $680.94 and the lowest price at which the shares were sold was $680.33. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote in this Form 4.

F5: Represents the weighted average sale price of $681.68 rounded to the nearest hundredth. The highest price at which the shares were sold was $681.91 and the lowest price at which the shares were sold was $681.45. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote in this Form 4.

F6: Represents the weighted average sale price of $682.47 rounded to the nearest hundredth. The highest price at which the shares were sold was $682.98 and the lowest price at which the shares were sold was $682.04. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote in this Form 4.

F7: Represents the weighted average sale price of $683.79 rounded to the nearest hundredth. The highest price at which the shares were sold was $683.98 and the lowest price at which the shares were sold was $683.62. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote in this Form 4.

F8: Represents the weighted average sale price of $684.67 rounded to the nearest hundredth. The highest price at which the shares were sold was $684.92 and the lowest price at which the shares were sold was $684.14. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote in this Form 4.

F9: Represents the weighted average sale price of $685.33 rounded to the nearest hundredth. The highest price at which the shares were sold was $685.76 and the lowest price at which the shares were sold was $685.00. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote in this Form 4.

F10: Represents the weighted average sale price of $686.43 rounded to the nearest hundredth. The highest price at which the shares were sold was $686.83 and the lowest price at which the shares were sold was $686.10. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote in this Form 4.

F11: Represents the weighted average sale price of $687.64 rounded to the nearest hundredth. The highest price at which the shares were sold was $687.96 and the lowest price at which the shares were sold was $687.04. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote in this Form 4.

F12: Represents the weighted average sale price of $688.51 rounded to the nearest hundredth. The highest price at which the shares were sold was $688.88 and the lowest price at which the shares were sold was $688.08. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote in this Form 4.

F13: Represents the weighted average sale price of $689.31 rounded to the nearest hundredth. The highest price at which the shares were sold was $689.72 and the lowest price at which the shares were sold was $689.01. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote in this Form 4.