NORTHROP GRUMMAN CORP /DE/ (NOC)

Data as of Oct 1, 2026, from SEC Form 4 filings.

S&P 500Net insider selling (90d)Watch NOC

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Latest NOC insider trades

Mark A. Welsh III - Director
Open-market sale$4K
Aug 3, 2026
Mark A. Welsh III - Director
Open-market sale$10K

About NORTHROP GRUMMAN CORP /DE/ (NOC)

NORTHROP GRUMMAN CORP /DE/ files with the SEC under CIK 0001133421 and is classified as search, detection, navigation, guidance, aeronautical sys. We track it alongside the rest of the Information Technology sector.

Sector: Information Technology

SEC filings for NOC on EDGAR

NOC Form 4 activity by transaction type, last 90 days

Form 4 transaction type	Transactions	Shares	Total value
Open-market sale	10	95	$52K
Grant or award	3	36,081

Dollar totals cover purchases and sales only (codes P and S). Grants, option exercises, gifts and tax withholding are counted in shares, because none of them is a trade at a market price.

NOC insider transactions (Form 4)

79 Form 4 filings on record, the earliest from Oct 1, 2024, newest first. Filing history page 1 of 3.

Date	Insider	Transaction	Security	Shares	Price	Value
Sep 30, 2026	Arvind Krishna - Director	Grant or award	Common Stock	75^{footnote F1}	$483.48	$36K
Footnote F1 (shares): 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.
Sep 30, 2026	Marianne Catherine Brown - Director	Grant or award	Common Stock	96^{footnote F1}	$483.48	$46K
Footnote F1 (shares): 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.
Aug 19, 2026	Kathy J. Warden - Officer	Grant or award	Market Stock Units	35,910	$0.00	-
Aug 3, 2026	Mark A. Welsh III - Director	Open-market sale	Common Stock	8^{footnote F1}	$544.53^{footnote F2}	$4K
Aug 3, 2026	Mark A. Welsh III - Director	Open-market sale	Common Stock	19^{footnote F1}	$545.59^{footnote F3}	$10K
Aug 3, 2026	Mark A. Welsh III - Director	Open-market sale	Common Stock	11^{footnote F1}	$546.42^{footnote F4}	$6K
Aug 3, 2026	Mark A. Welsh III - Director	Open-market sale	Common Stock	31^{footnote F1}	$547.42^{footnote F5}	$17K
Aug 3, 2026	Mark A. Welsh III - Director	Open-market sale	Common Stock	10^{footnote F1}	$548.32^{footnote F6}	$5K
Aug 3, 2026	Mark A. Welsh III - Director	Open-market sale	Common Stock	6^{footnote F1}	$549.50^{footnote F7}	$3K
Aug 3, 2026	Mark A. Welsh III - Director	Open-market sale	Common Stock	2^{footnote F1}	$550.68	$1K
Aug 3, 2026	Mark A. Welsh III - Director	Open-market sale	Common Stock	2^{footnote F1}	$552.95	$1K
Aug 3, 2026	Mark A. Welsh III - Director	Open-market sale	Common Stock	2^{footnote F1}	$553.90	$1K
Aug 3, 2026	Mark A. Welsh III - Director	Open-market sale	Common Stock	4^{footnote F1}	$554.14^{footnote F8}	$2K
Footnote F1 (shares): 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. Footnote F2 (price): 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… Full note on SEC EDGAR Footnote F3 (price): 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… Full note on SEC EDGAR Footnote F4 (price): 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… Full note on SEC EDGAR Footnote F5 (price): 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… Full note on SEC EDGAR Footnote F6 (price): 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… Full note on SEC EDGAR Footnote F7 (price): 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… Full note on SEC EDGAR Footnote F8 (price): 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… Full note on SEC EDGAR
Jun 30, 2026	Marianne Catherine Brown - Director	Grant or award	Common Stock	91^{footnote F1}	$509.31	$46K
Footnote F1 (shares): 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.
Jun 30, 2026	Arvind Krishna - Director	Grant or award	Common Stock	71^{footnote F1}	$509.31	$36K
Footnote F1 (shares): 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.
May 20, 2026	Mary A. Winston - Director	Grant or award	Common Stock	349^{footnote F1}	$552.17	$193K
Footnote F1 (shares): 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.
May 20, 2026	Mark A. Welsh III - Director	Grant or award	Common Stock	349^{footnote F1}	$552.17	$193K
Footnote F1 (shares): 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.
May 20, 2026	James S. Turley - Director	Grant or award	Common Stock	349^{footnote F1}	$552.17	$193K
Footnote F1 (shares): 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.
May 20, 2026	Thomas M. Schoewe - Director	Grant or award	Common Stock	349^{footnote F1}	$552.17	$193K
Footnote F1 (shares): 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.
May 20, 2026	Gary Roughead - Director	Grant or award	Common Stock	349^{footnote F1}	$552.17	$193K
Footnote F1 (shares): 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.
May 20, 2026	Kimberly A. Ross - Director	Grant or award	Common Stock	349^{footnote F1}	$552.17	$193K
Footnote F1 (shares): 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.
May 20, 2026	Arvind Krishna - Director	Grant or award	Common Stock	349^{footnote F1}	$552.17	$193K
Footnote F1 (shares): 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.
May 20, 2026	Christopher W. Grady - Director	Grant or award	Common Stock	349^{footnote F1}	$552.17	$193K
Footnote F1 (shares): 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.
May 20, 2026	Marianne Catherine Brown - Director	Grant or award	Common Stock	349^{footnote F1}	$552.17	$193K
Footnote F1 (shares): 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.
May 20, 2026	David P. Abney - Director	Grant or award	Common Stock	349^{footnote F1}	$552.17	$193K
Footnote F1 (shares): 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.
May 4, 2026	Mark A. Welsh III - Director	Open-market sale	Common Stock	1^{footnote F1}	$566.60	$567
May 4, 2026	Mark A. Welsh III - Director	Open-market sale	Common Stock	5^{footnote F1}	$568.75^{footnote F2}	$3K
May 4, 2026	Mark A. Welsh III - Director	Open-market sale	Common Stock	9^{footnote F1}	$569.49^{footnote F3}	$5K
May 4, 2026	Mark A. Welsh III - Director	Open-market sale	Common Stock	43^{footnote F1}	$570.47^{footnote F4}	$25K
May 4, 2026	Mark A. Welsh III - Director	Open-market sale	Common Stock	3^{footnote F1}	$571.74^{footnote F5}	$2K
May 4, 2026	Mark A. Welsh III - Director	Open-market sale	Common Stock	6^{footnote F1}	$572.72^{footnote F6}	$3K
May 4, 2026	Mark A. Welsh III - Director	Open-market sale	Common Stock	14^{footnote F1}	$573.51^{footnote F7}	$8K
May 4, 2026	Mark A. Welsh III - Director	Open-market sale	Common Stock	2^{footnote F1}	$574.51^{footnote F8}	$1K
May 4, 2026	Mark A. Welsh III - Director	Open-market sale	Common Stock	4^{footnote F1}	$575.59^{footnote F9}	$2K
May 4, 2026	Mark A. Welsh III - Director	Open-market sale	Common Stock	7^{footnote F1}	$576.38^{footnote F10}	$4K
May 4, 2026	Mark A. Welsh III - Director	Open-market sale	Common Stock	1^{footnote F1}	$577.05	$577
Footnote F1 (shares): 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. Footnote F2 (price): Represents the weighted average sale price of $568.75 rounded to the nearest hundredth. The highest price at which the shares were sold was $568.92 and the lowest price at which the shares were sold was $568.49. The reporting person undertakes to provide to the Issuer, any… Full note on SEC EDGAR Footnote F3 (price): Represents the weighted average sale price of $569.49 rounded to the nearest hundredth. The highest price at which the shares were sold was $569.97 and the lowest price at which the shares were sold was $569.01. The reporting person undertakes to provide to the Issuer, any… Full note on SEC EDGAR Footnote F4 (price): Represents the weighted average sale price of $570.47 rounded to the nearest hundredth. The highest price at which the shares were sold was $570.84 and the lowest price at which the shares were sold was $570.25. The reporting person undertakes to provide to the Issuer, any… Full note on SEC EDGAR Footnote F5 (price): Represents the weighted average sale price of $571.74 rounded to the nearest hundredth. The highest price at which the shares were sold was $571.98 and the lowest price at which the shares were sold was $571.32. The reporting person undertakes to provide to the Issuer, any… Full note on SEC EDGAR Footnote F6 (price): Represents the weighted average sale price of $572.72 rounded to the nearest hundredth. The highest price at which the shares were sold was $572.98 and the lowest price at which the shares were sold was $572.51. The reporting person undertakes to provide to the Issuer, any… Full note on SEC EDGAR Footnote F7 (price): Represents the weighted average sale price of $573.51 rounded to the nearest hundredth. The highest price at which the shares were sold was $573.80 and the lowest price at which the shares were sold was $573.14. The reporting person undertakes to provide to the Issuer, any… Full note on SEC EDGAR Footnote F8 (price): Represents the weighted average sale price of $574.51 rounded to the nearest hundredth. The highest price at which the shares were sold was $574.66 and the lowest price at which the shares were sold was $574.35. The reporting person undertakes to provide to the Issuer, any… Full note on SEC EDGAR Footnote F9 (price): Represents the weighted average sale price of $575.59 rounded to the nearest hundredth. The highest price at which the shares were sold was $575.99 and the lowest price at which the shares were sold was $575.38. The reporting person undertakes to provide to the Issuer, any… Full note on SEC EDGAR Footnote F10 (price): Represents the weighted average sale price of $576.38 rounded to the nearest hundredth. The highest price at which the shares were sold was $576.87 and the lowest price at which the shares were sold was $576.03. The reporting person undertakes to provide to the Issuer, any… Full note on SEC EDGAR
Mar 31, 2026	Marianne Catherine Brown - Director	Grant or award	Common Stock	68^{footnote F1}	$682.24	$46K
Footnote F1 (shares): 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.
Mar 31, 2026	Arvind Krishna - Director	Grant or award	Common Stock	53^{footnote F1}	$682.24	$36K
Footnote F1 (shares): 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.
Mar 2, 2026	Kathryn G. Simpson - Officer	Open-market sale	Common Stock	873^{footnote F1}	$745.00	$650K
Footnote F1 (shares): The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 28, 2025.
Feb 27, 2026	Roshan S. Roeder - Officer	Open-market sale	Common Stock	1,754^{footnote F1}	$720.00	$1.26M
Footnote F1 (shares): The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on October 30, 2025.
Feb 19, 2026	Kathryn G. Simpson - Officer	Open-market sale	Common Stock	194^{footnote F1}	$727.62	$141K
Footnote F1 (shares): The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 28, 2025.
Feb 19, 2026	Roshan S. Roeder - Officer	Open-market sale	Common Stock	512^{footnote F1}	$727.62	$373K
Footnote F1 (shares): The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on October 30, 2025.
Feb 19, 2026	Michael A. Hardesty - Officer	Open-market sale	Common Stock	147	$732.98	$108K
Feb 12, 2026	Christopher W. Grady - Director	Grant or award	Common Stock	71^{footnote F1}	$695.06	$49K
Footnote F1 (shares): 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.
Feb 17, 2026	Benjamin R. Davies - Officer	Option exercise	Common Stock	274	$0.00	-
Feb 17, 2026	Benjamin R. Davies - Officer	Tax withholding / forfeiture	Common Stock	123	$701.12	$86K
Feb 18, 2026	Benjamin R. Davies - Officer	Open-market sale	Common Stock	2,189	$719.61^{footnote F1}	$1.58M
Feb 17, 2026	Benjamin R. Davies - Officer	Option exercise	Restricted Stock Rights	274	$0.00	-
Footnote F1 (price): Represents the weighted average sale price of $719.61 rounded to the nearest hundredth. The highest price at which the shares were sold was $719.935 and the lowest price at which the shares were sold was $719.55. The reporting person undertakes to provide to the Issuer, any… Full note on SEC EDGAR
Feb 17, 2026	Robert J. Fleming - Officer	Option exercise	Common Stock	264	$0.00	-
Feb 17, 2026	Robert J. Fleming - Officer	Tax withholding / forfeiture	Common Stock	85	$701.12	$60K
Feb 17, 2026	Robert J. Fleming - Officer	Option exercise	Restricted Stock Rights	264	$0.00	-
Feb 17, 2026	Michael A. Hardesty - Officer	Option exercise	Common Stock	538	$0.00	-
Feb 17, 2026	Michael A. Hardesty - Officer	Tax withholding / forfeiture	Common Stock	243	$701.12	$170K
Feb 17, 2026	Michael A. Hardesty - Officer	Open-market sale	Common Stock	715.94	$700.63	$502K
Feb 17, 2026	Michael A. Hardesty - Officer	Option exercise	Restricted Stock Rights	538	$0.00	-
Feb 17, 2026	Thomas H. Jones - Officer	Option exercise	Common Stock	2,152	$0.00	-
Feb 17, 2026	Thomas H. Jones - Officer	Tax withholding / forfeiture	Common Stock	1,005	$701.12	$705K
Feb 17, 2026	Thomas H. Jones - Officer	Option exercise	Restricted Stock Rights	2,152	$0.00	-
Feb 17, 2026	Kathy J. Warden - Officer	Option exercise	Common Stock	10,760	$0.00	-
Feb 17, 2026	Kathy J. Warden - Officer	Tax withholding / forfeiture	Common Stock	4,857	$701.12	$3.41M
Feb 17, 2026	Kathy J. Warden - Officer	Option exercise	Restricted Stock Rights	10,760	$0.00	-

Recent NOC Form 8-K filings

Read NOC company news

Aug 21, 2026Item 5.02

Read the filing on SEC EDGAR

Jul 21, 2026Item 2.02, 9.01

Read the filing on SEC EDGAR

May 21, 2026Item 5.07

Read the filing on SEC EDGAR

Apr 21, 2026Item 2.02, 9.01

Read the filing on SEC EDGAR

Recent NOC Form 144 notices of proposed sale

An insider files Form 144 before selling restricted or control stock. It announces a planned sale. If the sale goes ahead, it shows up later on a Form 4.

Filed	Filer	Relationship	Shares	Market value	Notice
Jul 24, 2026	-	-	-	-	View on EDGAR
May 4, 2026	-	-	-	-

Congress trades in NOC

All congress trades

Stock trades in NOC disclosed by members of the U.S. House in the last 12 months, newest first. Values are the ranges as filed.

Member	Type	Traded	Disclosed	Value range	Owner	Days to disclose	Filing
Steve CohenDemocrat, TN-09	Sale (partial)

NOC insider trading FAQ

What is the latest insider trade for NOC?

NORTHROP GRUMMAN CORP /DE/ (NOC) had 4 insider filings in the last 90 days, with the most recent on 2026-10-01. The full record for NOC runs to 79 Form 4 filings, the earliest from 2024-10-01. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.

How many insiders are buying NOC stock?

No insider purchases of NOC were filed in the last 90 days.

How many insiders are selling NOC stock?

10 insider sales of NOC were filed in the last 90 days, totaling $52K.

Where can I see NOC SEC filings (Form 4, 10-K, 10-Q, 8-K)?

This page collects NOC Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.

More Information Technology companies with insider activity

Recent insider filings

The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.

Oct 1, 2026 - Arvind Krishna view on EDGAR
Oct 1, 2026 - Marianne Catherine Brown view on EDGAR
Aug 21, 2026 - Kathy J. Warden view on EDGAR
Aug 4, 2026 - Mark A. Welsh III view on EDGAR
Jul 1, 2026 - Marianne Catherine Brown view on EDGAR
Jul 1, 2026 - Arvind Krishna view on EDGAR
May 21, 2026 - Mary A. Winston view on EDGAR
May 21, 2026 - Mark A. Welsh III view on EDGAR
May 21, 2026 - James S. Turley view on EDGAR

Related companies with recent insider activity

Learn more

Insider selling: signal or noise?: Why most insider sales are routine, and the few patterns worth a second look.
Form 144 vs Form 4: A Form 144 announces a planned sale; the Form 4 reports it after it happens.
Insider activity in Information Technology: Where NOC's peers are being bought and sold.
Every recent Form 4: The market-wide feed, updated as filings arrive from SEC EDGAR.

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Form 4 transaction type

Transactions

Total value

Open-market sale

$52K

Grant or award

36,081

Date

Insider

Transaction

Security

Price

Value

Sep 30, 2026

Arvind Krishna - Director

Grant or award

Common Stock

75^{footnote F1}

$483.48

$36K

Footnote F1 (shares): 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.

Sep 30, 2026

Marianne Catherine Brown - Director

Grant or award

Common Stock

96^{footnote F1}

$483.48

$46K

Footnote F1 (shares): 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.

Aug 19, 2026

Kathy J. Warden - Officer

Grant or award

Market Stock Units

35,910

$0.00

Aug 3, 2026

Mark A. Welsh III - Director

Open-market sale

Common Stock

8^{footnote F1}

$544.53^{footnote F2}

$4K

Aug 3, 2026

Mark A. Welsh III - Director

Open-market sale

Common Stock

19^{footnote F1}

$545.59^{footnote F3}

$10K

Aug 3, 2026

Mark A. Welsh III - Director

Open-market sale

Common Stock

11^{footnote F1}

$546.42^{footnote F4}

$6K

Aug 3, 2026

Mark A. Welsh III - Director

Open-market sale

Common Stock

31^{footnote F1}

$547.42^{footnote F5}

$17K

Aug 3, 2026

Mark A. Welsh III - Director

Open-market sale

Common Stock

10^{footnote F1}

$548.32^{footnote F6}

$5K

Aug 3, 2026

Mark A. Welsh III - Director

Open-market sale

Common Stock

6^{footnote F1}

$549.50^{footnote F7}

$3K

Aug 3, 2026

Mark A. Welsh III - Director

Open-market sale

Common Stock

2^{footnote F1}

$550.68

$1K

Aug 3, 2026

Mark A. Welsh III - Director

Open-market sale

Common Stock

2^{footnote F1}

$552.95

$1K

Aug 3, 2026

Mark A. Welsh III - Director

Open-market sale

Common Stock

2^{footnote F1}

$553.90

$1K

Aug 3, 2026

Mark A. Welsh III - Director

Open-market sale

Common Stock

4^{footnote F1}

$554.14^{footnote F8}

$2K

Footnote F1 (shares): 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.
Footnote F2 (price): 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… Full note on SEC EDGAR
Footnote F3 (price): 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… Full note on SEC EDGAR
Footnote F4 (price): 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… Full note on SEC EDGAR
Footnote F5 (price): 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… Full note on SEC EDGAR
Footnote F6 (price): 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… Full note on SEC EDGAR
Footnote F7 (price): 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… Full note on SEC EDGAR
Footnote F8 (price): 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… Full note on SEC EDGAR

Jun 30, 2026

Marianne Catherine Brown - Director

Grant or award

Common Stock

91^{footnote F1}

$509.31

$46K

Footnote F1 (shares): 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.

Jun 30, 2026

Arvind Krishna - Director

Grant or award

Common Stock

71^{footnote F1}

$509.31

$36K

Footnote F1 (shares): 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.

May 20, 2026

Mary A. Winston - Director

Grant or award

Common Stock

349^{footnote F1}

$552.17

$193K

Footnote F1 (shares): 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.

May 20, 2026

Mark A. Welsh III - Director

Grant or award

Common Stock

349^{footnote F1}

$552.17

$193K

Footnote F1 (shares): 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.

May 20, 2026

James S. Turley - Director

Grant or award

Common Stock

349^{footnote F1}

$552.17

$193K

Footnote F1 (shares): 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.

May 20, 2026

Thomas M. Schoewe - Director

Grant or award

Common Stock

349^{footnote F1}

$552.17

$193K

Footnote F1 (shares): 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.

May 20, 2026

Gary Roughead - Director

Grant or award

Common Stock

349^{footnote F1}

$552.17

$193K

Footnote F1 (shares): 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.

May 20, 2026

Kimberly A. Ross - Director

Grant or award

Common Stock

349^{footnote F1}

$552.17

$193K

Footnote F1 (shares): 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.

May 20, 2026

Arvind Krishna - Director

Grant or award

Common Stock

349^{footnote F1}

$552.17

$193K

Footnote F1 (shares): 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.

May 20, 2026

Christopher W. Grady - Director

Grant or award

Common Stock

349^{footnote F1}

$552.17

$193K

Footnote F1 (shares): 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.

May 20, 2026

Marianne Catherine Brown - Director

Grant or award

Common Stock

349^{footnote F1}

$552.17

$193K

Footnote F1 (shares): 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.

May 20, 2026

David P. Abney - Director

Grant or award

Common Stock

349^{footnote F1}

$552.17

$193K

Footnote F1 (shares): 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.

May 4, 2026

Mark A. Welsh III - Director

Open-market sale

Common Stock

1^{footnote F1}

$566.60

$567

May 4, 2026

Mark A. Welsh III - Director

Open-market sale

Common Stock

5^{footnote F1}

$568.75^{footnote F2}

$3K

May 4, 2026

Mark A. Welsh III - Director

Open-market sale

Common Stock

9^{footnote F1}

$569.49^{footnote F3}

$5K

May 4, 2026

Mark A. Welsh III - Director

Open-market sale

Common Stock

43^{footnote F1}

$570.47^{footnote F4}

$25K

May 4, 2026

Mark A. Welsh III - Director

Open-market sale

Common Stock

3^{footnote F1}

$571.74^{footnote F5}

$2K

May 4, 2026

Mark A. Welsh III - Director

Open-market sale

Common Stock

6^{footnote F1}

$572.72^{footnote F6}

$3K

May 4, 2026

Mark A. Welsh III - Director

Open-market sale

Common Stock

14^{footnote F1}

$573.51^{footnote F7}

$8K

May 4, 2026

Mark A. Welsh III - Director

Open-market sale

Common Stock

2^{footnote F1}

$574.51^{footnote F8}

$1K

May 4, 2026

Mark A. Welsh III - Director

Open-market sale

Common Stock

4^{footnote F1}

$575.59^{footnote F9}

$2K

May 4, 2026

Mark A. Welsh III - Director

Open-market sale

Common Stock

7^{footnote F1}

$576.38^{footnote F10}

$4K

May 4, 2026

Mark A. Welsh III - Director

Open-market sale

Common Stock

1^{footnote F1}

$577.05

$577

Footnote F1 (shares): 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.
Footnote F2 (price): Represents the weighted average sale price of $568.75 rounded to the nearest hundredth. The highest price at which the shares were sold was $568.92 and the lowest price at which the shares were sold was $568.49. The reporting person undertakes to provide to the Issuer, any… Full note on SEC EDGAR
Footnote F3 (price): Represents the weighted average sale price of $569.49 rounded to the nearest hundredth. The highest price at which the shares were sold was $569.97 and the lowest price at which the shares were sold was $569.01. The reporting person undertakes to provide to the Issuer, any… Full note on SEC EDGAR
Footnote F4 (price): Represents the weighted average sale price of $570.47 rounded to the nearest hundredth. The highest price at which the shares were sold was $570.84 and the lowest price at which the shares were sold was $570.25. The reporting person undertakes to provide to the Issuer, any… Full note on SEC EDGAR
Footnote F5 (price): Represents the weighted average sale price of $571.74 rounded to the nearest hundredth. The highest price at which the shares were sold was $571.98 and the lowest price at which the shares were sold was $571.32. The reporting person undertakes to provide to the Issuer, any… Full note on SEC EDGAR
Footnote F6 (price): Represents the weighted average sale price of $572.72 rounded to the nearest hundredth. The highest price at which the shares were sold was $572.98 and the lowest price at which the shares were sold was $572.51. The reporting person undertakes to provide to the Issuer, any… Full note on SEC EDGAR
Footnote F7 (price): Represents the weighted average sale price of $573.51 rounded to the nearest hundredth. The highest price at which the shares were sold was $573.80 and the lowest price at which the shares were sold was $573.14. The reporting person undertakes to provide to the Issuer, any… Full note on SEC EDGAR
Footnote F8 (price): Represents the weighted average sale price of $574.51 rounded to the nearest hundredth. The highest price at which the shares were sold was $574.66 and the lowest price at which the shares were sold was $574.35. The reporting person undertakes to provide to the Issuer, any… Full note on SEC EDGAR
Footnote F9 (price): Represents the weighted average sale price of $575.59 rounded to the nearest hundredth. The highest price at which the shares were sold was $575.99 and the lowest price at which the shares were sold was $575.38. The reporting person undertakes to provide to the Issuer, any… Full note on SEC EDGAR
Footnote F10 (price): Represents the weighted average sale price of $576.38 rounded to the nearest hundredth. The highest price at which the shares were sold was $576.87 and the lowest price at which the shares were sold was $576.03. The reporting person undertakes to provide to the Issuer, any… Full note on SEC EDGAR

Mar 31, 2026

Marianne Catherine Brown - Director

Grant or award

Common Stock

68^{footnote F1}

$682.24

$46K

Footnote F1 (shares): 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.

Mar 31, 2026

Arvind Krishna - Director

Grant or award

Common Stock

53^{footnote F1}

$682.24

$36K

Footnote F1 (shares): 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.

Mar 2, 2026

Kathryn G. Simpson - Officer

Open-market sale

Common Stock

873^{footnote F1}

$745.00

$650K

Footnote F1 (shares): The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 28, 2025.

Feb 27, 2026

Roshan S. Roeder - Officer

Open-market sale

Common Stock

1,754^{footnote F1}

$720.00

$1.26M

Footnote F1 (shares): The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on October 30, 2025.

Feb 19, 2026

Kathryn G. Simpson - Officer

Open-market sale

Common Stock

194^{footnote F1}

$727.62

$141K

Footnote F1 (shares): The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 28, 2025.

Feb 19, 2026

Roshan S. Roeder - Officer

Open-market sale

Common Stock

512^{footnote F1}

$727.62

$373K

Footnote F1 (shares): The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on October 30, 2025.

Feb 19, 2026

Michael A. Hardesty - Officer

Open-market sale

Common Stock

147

$732.98

$108K

Feb 12, 2026

Christopher W. Grady - Director

Grant or award

Common Stock

71^{footnote F1}

$695.06

$49K

Footnote F1 (shares): 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.

Feb 17, 2026

Benjamin R. Davies - Officer

Option exercise

Common Stock

274

$0.00

Feb 17, 2026

Benjamin R. Davies - Officer

Tax withholding / forfeiture

Common Stock

123

$701.12

$86K

Feb 18, 2026

Benjamin R. Davies - Officer

Open-market sale

Common Stock

2,189

$719.61^{footnote F1}

$1.58M

Feb 17, 2026

Benjamin R. Davies - Officer

Option exercise

Restricted Stock Rights

274

$0.00

Footnote F1 (price): Represents the weighted average sale price of $719.61 rounded to the nearest hundredth. The highest price at which the shares were sold was $719.935 and the lowest price at which the shares were sold was $719.55. The reporting person undertakes to provide to the Issuer, any… Full note on SEC EDGAR

Feb 17, 2026

Robert J. Fleming - Officer

Option exercise

Common Stock

264

$0.00

Feb 17, 2026

Robert J. Fleming - Officer

Tax withholding / forfeiture

Common Stock

$701.12

$60K

Feb 17, 2026

Robert J. Fleming - Officer

Option exercise

Restricted Stock Rights

264

$0.00

Feb 17, 2026

Michael A. Hardesty - Officer

Option exercise

Common Stock

538

$0.00

Feb 17, 2026

Michael A. Hardesty - Officer

Tax withholding / forfeiture

Common Stock

243

$701.12

$170K

Feb 17, 2026

Michael A. Hardesty - Officer

Open-market sale

Common Stock

715.94

$700.63

$502K

Feb 17, 2026

Michael A. Hardesty - Officer

Option exercise

Restricted Stock Rights

538

$0.00

Feb 17, 2026

Thomas H. Jones - Officer

Option exercise

Common Stock

2,152

$0.00

Feb 17, 2026

Thomas H. Jones - Officer

Tax withholding / forfeiture

Common Stock

1,005

$701.12

$705K

Feb 17, 2026

Thomas H. Jones - Officer

Option exercise

Restricted Stock Rights

2,152

$0.00

Feb 17, 2026

Kathy J. Warden - Officer

Option exercise

Common Stock

10,760

$0.00

Feb 17, 2026

Kathy J. Warden - Officer

Tax withholding / forfeiture

Common Stock

4,857

$701.12

$3.41M

Feb 17, 2026

Kathy J. Warden - Officer

Option exercise

Restricted Stock Rights

10,760

$0.00

Filed

Filer

Relationship

Market value

Notice

Jul 24, 2026

View on EDGAR

May 4, 2026

Member	Type	Traded	Disclosed	Value range	Owner	Days to disclose	Filing
Steve CohenDemocrat, TN-09	Sale (partial)

Member

Type

Traded

Disclosed

Value range

Owner

Days to disclose

Filing

Steve CohenDemocrat, TN-09

Sale (partial)