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  4. [Form 4] NORTHROP GRUMMAN CORP /DE/ Insider Trading Activity

Northrop Grumman (NYSE: NOC) director trades 95 shares under 10b5-1 plan

Filing Impact
(Neutral)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

Northrop Grumman Corp. director Mark A III Welsh reported selling a total of 95 shares of common stock on August 3, 2026. The 10 open‑market transactions were executed at weighted‑average prices including $544.53 and $554.14 per share, pursuant to a pre‑arranged Rule 10b5‑1 trading plan adopted on August 23, 2025.

Positive

  • None.

Negative

  • None.
Insider WELSH MARK A III
Role Director
Sold 95 shs ($52K)
Type Security Shares Price Value
Sale Common Stock F1, F2 8 $544.53 $4K
Sale Common Stock F1, F3 19 $545.59 $10K
Sale Common Stock F1, F4 11 $546.42 $6K
Sale Common Stock F1, F5 31 $547.42 $17K
Sale Common Stock F1, F6 10 $548.32 $5K
Sale Common Stock F1, F7 6 $549.50 $3K
Sale Common Stock F1 2 $550.68 $1K
Sale Common Stock F1 2 $552.95 $1K
Sale Common Stock F1 2 $553.90 $1K
Sale Common Stock F1, F8 4 $554.14 $2K
Holdings After Transaction: Common Stock — 4,393 shares (Direct)
Footnotes (8)
  1. 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.
  2. F2. Represents the weighted average sale price of $544.53 rounded to the nearest hundredth. The highest price at which the shares were sold was $544.81 and the lowest price at which the shares were sold was $544.03. 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.
  3. F3. Represents the weighted average sale price of $545.59 rounded to the nearest hundredth. The highest price at which the shares were sold was $545.82 and the lowest price at which the shares were sold was $545.12. 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.
  4. F4. Represents the weighted average sale price of $546.42 rounded to the nearest hundredth. The highest price at which the shares were sold was $546.89 and the lowest price at which the shares were sold was $546.05. 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.
  5. F5. Represents the weighted average sale price of $547.42 rounded to the nearest hundredth. The highest price at which the shares were sold was $547.94 and the lowest price at which the shares were sold was $547.12. 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.
  6. F6. Represents the weighted average sale price of $548.32 rounded to the nearest hundredth. The highest price at which the shares were sold was $548.78 and the lowest price at which the shares were sold was $548.11. 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.
  7. F7. Represents the weighted average sale price of $549.50 rounded to the nearest hundredth. The highest price at which the shares were sold was $549.74 and the lowest price at which the shares were sold was $549.03. 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.
  8. F8. Represents the weighted average sale price of $554.14 rounded to the nearest hundredth. The highest price at which the shares were sold was $554.17 and the lowest price at which the shares were sold was $554.11. 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.
Shares sold 95 shares Total Northrop Grumman common shares sold on August 3, 2026
Number of sale transactions 10 transactions Sale transactions reported in the transaction summary for that date
Weighted-average price example $544.53 per share Weighted average sale price for one group of sales on August 3, 2026
Weighted-average price example $554.14 per share Weighted average sale price for another group of sales on August 3, 2026
10b5-1 plan adoption date August 23, 2025 Date the reporting person adopted the Rule 10b5-1 trading plan
Net buy/sell direction net-sell 95 shares Transaction summary shows net-sell of 95 shares with no buys reported
Rule 10b5-1 trading plan regulatory
"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan..."
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
weighted average sale price financial
"Represents the weighted average sale price of $544.53 rounded to the nearest hundredth."
Sale in open market or private transaction financial
"transaction_code_description: Sale in open market or private transaction"

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FAQ

What insider transactions did Northrop Grumman (NOC) disclose for August 3, 2026?
Northrop Grumman reported that director Mark A III Welsh sold 95 shares of common stock on August 3, 2026. The 10 open‑market transactions used weighted‑average prices in the mid‑$540s to mid‑$550s per share under a Rule 10b5‑1 trading plan.

Who is the reporting person in the Northrop Grumman (NOC) Form 4 filing?
The reporting person is Mark A III Welsh, a director of Northrop Grumman Corp. He reported multiple open‑market sales of common stock totaling 95 shares, all executed on August 3, 2026, and conducted under a previously adopted Rule 10b5‑1 trading plan.

How many Northrop Grumman (NOC) shares were sold and at what prices?
The Form 4 shows 95 shares of Northrop Grumman common stock sold across 10 transactions. Footnotes disclose weighted‑average sale prices for groups of trades, including $544.53, $545.59, $546.42, $547.42, $548.32, $549.50, and $554.14 per share.

Were the August 3, 2026 Northrop Grumman (NOC) insider sales under a Rule 10b5-1 plan?
Yes. A footnote states the sales "were effected pursuant to a Rule 10b5-1 trading plan" adopted by the reporting person on August 23, 2025. The filing’s Rule 10b5‑1 checkbox is also marked, affirming execution under a pre‑arranged trading plan.

How many transactions and what type of trades were reported for Northrop Grumman (NOC)?
The transaction summary lists 10 sale transactions and zero purchases, gifts, or derivative exercises. Each entry is coded "S" for a sale of common stock described as a "Sale in open market or private transaction," all dated August 3, 2026.
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
X
Check this box to indicate that a 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). See Instruction 10.
1. Name and Address of Reporting Person*
WELSH MARK A III
(Last)(First)(Middle)
2980 FAIRVIEW PARK DRIVE
(Street)
FALLS CHURCH VIRGINIA 22042
(City)(State)(Zip)
UNITED STATES
(Country)		2. Issuer Name and Ticker or Trading Symbol
NORTHROP GRUMMAN CORP /DE/ [ NOC ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
08/03/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock08/03/2026S8(1)D$544.53(2)4,480D
Common Stock08/03/2026S19(1)D$545.59(3)4,461D
Common Stock08/03/2026S11(1)D$546.42(4)4,450D
Common Stock08/03/2026S31(1)D$547.42(5)4,419D
Common Stock08/03/2026S10(1)D$548.32(6)4,409D
Common Stock08/03/2026S6(1)D$549.5(7)4,403D
Common Stock08/03/2026S2(1)D$550.684,401D
Common Stock08/03/2026S2(1)D$552.954,399D
Common Stock08/03/2026S2(1)D$553.94,397D
Common Stock08/03/2026S4(1)D$554.14(8)4,393D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. 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.
2. Represents the weighted average sale price of $544.53 rounded to the nearest hundredth. The highest price at which the shares were sold was $544.81 and the lowest price at which the shares were sold was $544.03. 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.
3. Represents the weighted average sale price of $545.59 rounded to the nearest hundredth. The highest price at which the shares were sold was $545.82 and the lowest price at which the shares were sold was $545.12. 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.
4. Represents the weighted average sale price of $546.42 rounded to the nearest hundredth. The highest price at which the shares were sold was $546.89 and the lowest price at which the shares were sold was $546.05. 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.
5. Represents the weighted average sale price of $547.42 rounded to the nearest hundredth. The highest price at which the shares were sold was $547.94 and the lowest price at which the shares were sold was $547.12. 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.
6. Represents the weighted average sale price of $548.32 rounded to the nearest hundredth. The highest price at which the shares were sold was $548.78 and the lowest price at which the shares were sold was $548.11. 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.
7. Represents the weighted average sale price of $549.50 rounded to the nearest hundredth. The highest price at which the shares were sold was $549.74 and the lowest price at which the shares were sold was $549.03. 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.
8. Represents the weighted average sale price of $554.14 rounded to the nearest hundredth. The highest price at which the shares were sold was $554.17 and the lowest price at which the shares were sold was $554.11. 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.
Remarks:
/s/ Jennifer C. McGarey, Attorney-in-Fact08/04/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR