MARK A. WELSH III - 02 Feb 2026 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
02 Feb 2026
Net transactions value
-$65,029
Form type
4
Filing time
03 Feb 2026, 13:49:25 UTC
Previous filing
25 Nov 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
WELSH MARK A III Director 2980 FAIRVIEW PARK DRIVE, FALLS CHURCH /s/ Jennifer C. McGarey, Attorney-in-Fact 03 Feb 2026 0001692554

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction NOC Common Stock Sale $1,352 -2 -0.05% $676.14 4,296 02 Feb 2026 Direct F1, F2
transaction NOC Common Stock Sale $1,355 -2 -0.05% $677.43 4,294 02 Feb 2026 Direct F1, F3
transaction NOC Common Stock Sale $2,722 -4 -0.09% $680.49 4,290 02 Feb 2026 Direct F1, F4
transaction NOC Common Stock Sale $5,453 -8 -0.19% $681.68 4,282 02 Feb 2026 Direct F1, F5
transaction NOC Common Stock Sale $15,014 -22 -0.51% $682.47 4,260 02 Feb 2026 Direct F1, F6
transaction NOC Common Stock Sale $4,103 -6 -0.14% $683.79 4,254 02 Feb 2026 Direct F1, F7
transaction NOC Common Stock Sale $4,793 -7 -0.16% $684.67 4,247 02 Feb 2026 Direct F1, F8
transaction NOC Common Stock Sale $6,853 -10 -0.24% $685.33 4,237 02 Feb 2026 Direct F1, F9
transaction NOC Common Stock Sale $7,551 -11 -0.26% $686.43 4,226 02 Feb 2026 Direct F1, F10
transaction NOC Common Stock Sale $5,501 -8 -0.19% $687.64 4,218 02 Feb 2026 Direct F1, F11
transaction NOC Common Stock Sale $6,885 -10 -0.24% $688.51 4,208 02 Feb 2026 Direct F1, F12
transaction NOC Common Stock Sale $3,447 -5 -0.12% $689.31 4,203 02 Feb 2026 Direct F1, F13
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
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.