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person · Reporting owner

WELSH MARK A III

Disclosed activity across 1 company

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26778
SEC CIK
0001692554

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
NORTHROP GRUMMAN CORP /DE/NOC · Entity 2963DirectorAugust 03, 2026August 04, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

NORTHROP GRUMMAN CORP /DE/

Report date August 03, 2026 · Filed August 04, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect4,393 Ending reported balance After 2026-08-03 transaction · row 10
10 source rows · reconciled sequence

Row 1 · 2026-08-03 · Sale · Disposed 8 · Balance 4,480

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 $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.

Row 2 · 2026-08-03 · Sale · Disposed 19 · Balance 4,461

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.

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.

Row 3 · 2026-08-03 · Sale · Disposed 11 · Balance 4,450

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.

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.

Row 4 · 2026-08-03 · Sale · Disposed 31 · Balance 4,419

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.

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.

Row 5 · 2026-08-03 · Sale · Disposed 10 · Balance 4,409

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.

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.

Row 6 · 2026-08-03 · Sale · Disposed 6 · Balance 4,403

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.

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.

Row 7 · 2026-08-03 · Sale · Disposed 2 · Balance 4,401

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.

Row 8 · 2026-08-03 · Sale · Disposed 2 · Balance 4,399

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.

Row 9 · 2026-08-03 · Sale · Disposed 2 · Balance 4,397

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.

Row 10 · 2026-08-03 · Sale · Disposed 4 · Balance 4,393

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.

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.

Filing footnotes · ownership attribution and instrument terms

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 $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.

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.

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.

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.

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.

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.

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.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
August 03, 2026 Filed Aug 4, 2026 17:45 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 4 $554.14 $2,216.56
Disclosure

SEC source: 0001628280-26-052370 · wk-form4_1785865555.xml · nonDerivative · entry 10

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,393

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.

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 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.

Read SEC document
August 03, 2026 Filed Aug 4, 2026 17:45 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 2 $553.90 $1,107.80
Disclosure

SEC source: 0001628280-26-052370 · wk-form4_1785865555.xml · nonDerivative · entry 9

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,397

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.

Read SEC document
August 03, 2026 Filed Aug 4, 2026 17:45 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 2 $552.95 $1,105.90
Disclosure

SEC source: 0001628280-26-052370 · wk-form4_1785865555.xml · nonDerivative · entry 8

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,399

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.

Read SEC document
August 03, 2026 Filed Aug 4, 2026 17:45 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 2 $550.68 $1,101.36
Disclosure

SEC source: 0001628280-26-052370 · wk-form4_1785865555.xml · nonDerivative · entry 7

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,401

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.

Read SEC document
August 03, 2026 Filed Aug 4, 2026 17:45 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 6 $549.50 $3,297.00
Disclosure

SEC source: 0001628280-26-052370 · wk-form4_1785865555.xml · nonDerivative · entry 6

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,403

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.

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 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.

Read SEC document
August 03, 2026 Filed Aug 4, 2026 17:45 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 10 $548.32 $5,483.20
Disclosure

SEC source: 0001628280-26-052370 · wk-form4_1785865555.xml · nonDerivative · entry 5

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,409

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.

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 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.

Read SEC document
August 03, 2026 Filed Aug 4, 2026 17:45 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 31 $547.42 $16,970.02
Disclosure

SEC source: 0001628280-26-052370 · wk-form4_1785865555.xml · nonDerivative · entry 4

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,419

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.

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 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.

Read SEC document
August 03, 2026 Filed Aug 4, 2026 17:45 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 11 $546.42 $6,010.62
Disclosure

SEC source: 0001628280-26-052370 · wk-form4_1785865555.xml · nonDerivative · entry 3

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,450

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.

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 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.

Read SEC document
August 03, 2026 Filed Aug 4, 2026 17:45 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 19 $545.59 $10,366.21
Disclosure

SEC source: 0001628280-26-052370 · wk-form4_1785865555.xml · nonDerivative · entry 2

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,461

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.

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 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.

Read SEC document
August 03, 2026 Filed Aug 4, 2026 17:45 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 8 $544.53 $4,356.24
Disclosure

SEC source: 0001628280-26-052370 · wk-form4_1785865555.xml · nonDerivative · entry 1

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,480

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.

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 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.

Read SEC document
May 20, 2026 Filed May 21, 2026 19:29 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 GrantCommon Stock 349 $552.17 $192,707.33
Disclosure

SEC source: 0001628280-26-037209 · wk-form4_1779391739.xml · nonDerivative · entry 1

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,470

F1 · kind: 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.

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.

F2 · balance_after: Amount includes (i) 488 shares of common stock; and (ii) 3,982 shares of common stock, including dividends, held in a stock unit account pursuant to the Plan and the Northrop Grumman 2011 Long-Term Incentive Stock Plan. Dividends earned on shares held in the stock unit account were exempt from Section 16 and not reportable under Rule 16a-11.

Read SEC document
May 04, 2026 Filed May 5, 2026 20:40 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 1 $577.05 $577.05
Disclosure

SEC source: 0001628280-26-030668 · wk-form4_1778013600.xml · nonDerivative · entry 11

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,121

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.

Read SEC document
May 04, 2026 Filed May 5, 2026 20:40 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 7 $576.38 $4,034.66
Disclosure

SEC source: 0001628280-26-030668 · wk-form4_1778013600.xml · nonDerivative · entry 10

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,122

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.

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 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.

Read SEC document
May 04, 2026 Filed May 5, 2026 20:40 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 4 $575.59 $2,302.36
Disclosure

SEC source: 0001628280-26-030668 · wk-form4_1778013600.xml · nonDerivative · entry 9

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,129

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.

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 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.

Read SEC document
May 04, 2026 Filed May 5, 2026 20:40 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 2 $574.51 $1,149.02
Disclosure

SEC source: 0001628280-26-030668 · wk-form4_1778013600.xml · nonDerivative · entry 8

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,133

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.

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 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.

Read SEC document
May 04, 2026 Filed May 5, 2026 20:40 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 14 $573.51 $8,029.14
Disclosure

SEC source: 0001628280-26-030668 · wk-form4_1778013600.xml · nonDerivative · entry 7

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,135

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.

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 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.

Read SEC document
May 04, 2026 Filed May 5, 2026 20:40 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 6 $572.72 $3,436.32
Disclosure

SEC source: 0001628280-26-030668 · wk-form4_1778013600.xml · nonDerivative · entry 6

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,149

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.

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 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.

Read SEC document
May 04, 2026 Filed May 5, 2026 20:40 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 3 $571.74 $1,715.22
Disclosure

SEC source: 0001628280-26-030668 · wk-form4_1778013600.xml · nonDerivative · entry 5

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,155

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.

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 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.

Read SEC document
May 04, 2026 Filed May 5, 2026 20:40 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 43 $570.47 $24,530.21
Disclosure

SEC source: 0001628280-26-030668 · wk-form4_1778013600.xml · nonDerivative · entry 4

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,158

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.

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 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.

Read SEC document
May 04, 2026 Filed May 5, 2026 20:40 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 9 $569.49 $5,125.41
Disclosure

SEC source: 0001628280-26-030668 · wk-form4_1778013600.xml · nonDerivative · entry 3

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,201

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.

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 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.

Read SEC document
May 04, 2026 Filed May 5, 2026 20:40 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 5 $568.75 $2,843.75
Disclosure

SEC source: 0001628280-26-030668 · wk-form4_1778013600.xml · nonDerivative · entry 2

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,210

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.

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 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.

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May 04, 2026 Filed May 5, 2026 20:40 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 1 $566.60 $566.60
Disclosure

SEC source: 0001628280-26-030668 · wk-form4_1778013600.xml · nonDerivative · entry 1

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,215

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.

Read SEC document
February 02, 2026 Filed Feb 3, 2026 18:49 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 5 $689.31 $3,446.55
Disclosure

SEC source: 0001628280-26-004922 · wk-form4_1770144562.xml · nonDerivative · entry 12

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,203

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.

F13 · price: 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.

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February 02, 2026 Filed Feb 3, 2026 18:49 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 10 $688.51 $6,885.10
Disclosure

SEC source: 0001628280-26-004922 · wk-form4_1770144562.xml · nonDerivative · entry 11

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,208

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.

F12 · price: 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.

Read SEC document
February 02, 2026 Filed Feb 3, 2026 18:49 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 8 $687.64 $5,501.12
Disclosure

SEC source: 0001628280-26-004922 · wk-form4_1770144562.xml · nonDerivative · entry 10

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,218

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.

F11 · price: 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.

Read SEC document
February 02, 2026 Filed Feb 3, 2026 18:49 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 11 $686.43 $7,550.73
Disclosure

SEC source: 0001628280-26-004922 · wk-form4_1770144562.xml · nonDerivative · entry 9

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,226

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.

F10 · price: 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.

Read SEC document
February 02, 2026 Filed Feb 3, 2026 18:49 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 10 $685.33 $6,853.30
Disclosure

SEC source: 0001628280-26-004922 · wk-form4_1770144562.xml · nonDerivative · entry 8

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,237

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.

F9 · price: 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.

Read SEC document
February 02, 2026 Filed Feb 3, 2026 18:49 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 7 $684.67 $4,792.69
Disclosure

SEC source: 0001628280-26-004922 · wk-form4_1770144562.xml · nonDerivative · entry 7

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,247

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.

F8 · price: 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.

Read SEC document
February 02, 2026 Filed Feb 3, 2026 18:49 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 6 $683.79 $4,102.74
Disclosure

SEC source: 0001628280-26-004922 · wk-form4_1770144562.xml · nonDerivative · entry 6

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,254

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.

F7 · price: 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.

Read SEC document
February 02, 2026 Filed Feb 3, 2026 18:49 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 22 $682.47 $15,014.34
Disclosure

SEC source: 0001628280-26-004922 · wk-form4_1770144562.xml · nonDerivative · entry 5

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,260

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.

F6 · price: 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.

Read SEC document
February 02, 2026 Filed Feb 3, 2026 18:49 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 8 $681.68 $5,453.44
Disclosure

SEC source: 0001628280-26-004922 · wk-form4_1770144562.xml · nonDerivative · entry 4

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,282

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.

F5 · price: 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.

Read SEC document
February 02, 2026 Filed Feb 3, 2026 18:49 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 4 $680.49 $2,721.96
Disclosure

SEC source: 0001628280-26-004922 · wk-form4_1770144562.xml · nonDerivative · entry 3

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,290

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.

F4 · price: 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.

Read SEC document
February 02, 2026 Filed Feb 3, 2026 18:49 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 2 $677.43 $1,354.86
Disclosure

SEC source: 0001628280-26-004922 · wk-form4_1770144562.xml · nonDerivative · entry 2

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,294

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.

F3 · price: 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.

Read SEC document
February 02, 2026 Filed Feb 3, 2026 18:49 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 2 $676.14 $1,352.28
Disclosure

SEC source: 0001628280-26-004922 · wk-form4_1770144562.xml · nonDerivative · entry 1

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,296

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.

F2 · price: 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.

Read SEC document
November 24, 2025 Filed Nov 25, 2025 17:46 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 1 $566.15 $566.15
Disclosure

SEC source: 0001628280-25-053935 · wk-form4_1764092807.xml · nonDerivative · entry 7

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,281

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.

Read SEC document
November 24, 2025 Filed Nov 25, 2025 17:46 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 12 $565.31 $6,783.72
Disclosure

SEC source: 0001628280-25-053935 · wk-form4_1764092807.xml · nonDerivative · entry 6

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,282

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.

F6 · price: Represents the weighted average sale price of $565.31 rounded to the nearest hundredth. The highest price at which the shares were sold was $565.76 and the lowest price at which the shares were sold was $565.02. 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.

Read SEC document
November 24, 2025 Filed Nov 25, 2025 17:46 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 61 $564.36 $34,425.96
Disclosure

SEC source: 0001628280-25-053935 · wk-form4_1764092807.xml · nonDerivative · entry 5

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,294

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.

F5 · price: Represents the weighted average sale price of $564.36 rounded to the nearest hundredth. The highest price at which the shares were sold was $564.97 and the lowest price at which the shares were sold was $564.08. 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.

Read SEC document
November 24, 2025 Filed Nov 25, 2025 17:46 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 9 $563.62 $5,072.58
Disclosure

SEC source: 0001628280-25-053935 · wk-form4_1764092807.xml · nonDerivative · entry 4

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,355

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.

F4 · price: Represents the weighted average sale price of $563.62 rounded to the nearest hundredth. The highest price at which the shares were sold was $563.87 and the lowest price at which the shares were sold was $563.01. 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.

Read SEC document
November 24, 2025 Filed Nov 25, 2025 17:46 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 7 $562.52 $3,937.64
Disclosure

SEC source: 0001628280-25-053935 · wk-form4_1764092807.xml · nonDerivative · entry 3

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,364

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.

F3 · price: Represents the weighted average sale price of $562.52 rounded to the nearest hundredth. The highest price at which the shares were sold was $562.86 and the lowest price at which the shares were sold was $562.16. 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.

Read SEC document
November 24, 2025 Filed Nov 25, 2025 17:46 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 6 $561.51 $3,369.06
Disclosure

SEC source: 0001628280-25-053935 · wk-form4_1764092807.xml · nonDerivative · entry 2

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,371

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.

F2 · price: Represents the weighted average sale price of $561.51 rounded to the nearest hundredth. The highest price at which the shares were sold was $561.68 and the lowest price at which the shares were sold was $561.31. 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.

Read SEC document
November 24, 2025 Filed Nov 25, 2025 17:46 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 1 $560.39 $560.39
Disclosure

SEC source: 0001628280-25-053935 · wk-form4_1764092807.xml · nonDerivative · entry 1

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,377

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.

Read SEC document
July 07, 2025 Filed Jul 8, 2025 16:10 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 1 $509.59 $509.59
Disclosure

SEC source: 0001628280-25-034479 · wk-form4_1751991031.xml · nonDerivative · entry 6

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,363

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 May 30, 2024.

F6 · balance_after: Amount includes dividends held in a stock unit account pursuant to the Northrop Grumman 2024 Long-Term Incentive Stock Plan and the Northrop Grumman 2011 Long-Term Incentive Stock Plan. Dividends earned on shares held in the stock unit account were exempt from Section 16 and not reportable under Rule 16a-11.

Read SEC document
July 07, 2025 Filed Jul 8, 2025 16:10 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 5 $508.17 $2,540.85
Disclosure

SEC source: 0001628280-25-034479 · wk-form4_1751991031.xml · nonDerivative · entry 5

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,364

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 May 30, 2024.

F5 · price: Represents the weighted average sale price of $508.17 rounded to the nearest hundredth. The highest price at which the shares were sold was $508.31 and the lowest price at which the shares were sold was $508.04. 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.

Read SEC document
July 07, 2025 Filed Jul 8, 2025 16:10 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 3 $507.25 $1,521.75
Disclosure

SEC source: 0001628280-25-034479 · wk-form4_1751991031.xml · nonDerivative · entry 4

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,369

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 May 30, 2024.

F4 · price: Represents the weighted average sale price of $507.25 rounded to the nearest hundredth. The highest price at which the shares were sold was $507.41 and the lowest price at which the shares were sold was $507.12. 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.

Read SEC document
July 07, 2025 Filed Jul 8, 2025 16:10 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 21 $506.36 $10,633.56
Disclosure

SEC source: 0001628280-25-034479 · wk-form4_1751991031.xml · nonDerivative · entry 3

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,372

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 May 30, 2024.

F3 · price: Represents the weighted average sale price of $506.36 rounded to the nearest hundredth. The highest price at which the shares were sold was $506.89 and the lowest price at which the shares were sold was $506.00. 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.

Read SEC document
July 07, 2025 Filed Jul 8, 2025 16:10 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 2 $505.44 $1,010.88
Disclosure

SEC source: 0001628280-25-034479 · wk-form4_1751991031.xml · nonDerivative · entry 2

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,393

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 May 30, 2024.

F2 · price: Represents the weighted average sale price of $505.44 rounded to the nearest hundredth. The highest price at which the shares were sold was $505.71 and the lowest price at which the shares were sold was $505.16. 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.

Read SEC document
July 07, 2025 Filed Jul 8, 2025 16:10 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 1 $503.59 $503.59
Disclosure

SEC source: 0001628280-25-034479 · wk-form4_1751991031.xml · nonDerivative · entry 1

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,395

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 May 30, 2024.

Read SEC document
June 05, 2025 Filed Jun 9, 2025 15:02 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 1 $491.07 $491.07
Disclosure

SEC source: 0001628280-25-030142 · wk-form4_1749481340.xml · nonDerivative · entry 7

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,376

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 May 30, 2024.

Read SEC document
June 05, 2025 Filed Jun 9, 2025 15:02 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 3 $490.13 $1,470.39
Disclosure

SEC source: 0001628280-25-030142 · wk-form4_1749481340.xml · nonDerivative · entry 6

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,377

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 May 30, 2024.

F6 · price: Represents the weighted average sale price of $490.13 rounded to the nearest hundredth. The highest price at which the shares were sold was $490.30 and the lowest price at which the shares were sold was $490.01. 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.

Read SEC document
June 05, 2025 Filed Jun 9, 2025 15:02 UTC NORTHROP GRUMMAN CORP /DE/ NOC · Entity 2963 SaleCommon Stock 3 $489.26 $1,467.78
Disclosure

SEC source: 0001628280-25-030142 · wk-form4_1749481340.xml · nonDerivative · entry 5

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,380

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 May 30, 2024.

F5 · price: Represents the weighted average sale price of $489.26 rounded to the nearest hundredth. The highest price at which the shares were sold was $489.40 and the lowest price at which the shares were sold was $489.03. 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.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.