NOC

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.

SEC source: 0001628280-25-033793 · wk-form4_1751403128.xml · nonDerivative · entry 1

KRISHNA ARVIND · CIK 0001629898 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,116

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: Represents shares of common stock, including dividends, held in a stock unit account pursuant to the Plan. Dividends earned on shares held in the stock unit account were exempt from Section 16 and not reportable under rule 16a-11.

SEC source: 0001628280-25-033790 · wk-form4_1751403041.xml · nonDerivative · entry 1

Brown Marianne Catherine · CIK 0001804183 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,718

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: Represents shares of common stock, including dividends, held in a stock unit account pursuant to the Plan. Dividends earned on shares held in the stock unit account were exempt from Section 16 and not reportable under rule 16a-11.

SEC source: 0001628280-25-031606 · wk-form4_1750106385.xml · nonDerivative · entry 2

Jones Thomas H · CIK 0001834674 · CVP & Pres Aeronautics Systems

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,935.595

F2 · shares: The gift reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 26, 2025.

SEC source: 0001628280-25-031375 · wk-form4_1749849268.xml · nonDerivative · entry 2

Warden Kathy J · CIK 0001559112 · Director · Chair, CEO and President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 201,602.4

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 March 6, 2025.

SEC source: 0001628280-25-031612 · wk-form4_1750106524.xml · nonDerivative · entry 1

Fleming Robert J. · CIK 0001995165 · CVP and Pres. Space Systems

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,826.87

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 March 10, 2025.

SEC source: 0001628280-25-031606 · wk-form4_1750106385.xml · nonDerivative · entry 1

Jones Thomas H · CIK 0001834674 · CVP & Pres Aeronautics Systems

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 7,551.595

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 26, 2025.

SEC source: 0001628280-25-031375 · wk-form4_1749849268.xml · nonDerivative · entry 1

Warden Kathy J · CIK 0001559112 · Director · Chair, CEO and President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 209,102.4

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 March 6, 2025.

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.

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.

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.

SEC source: 0001628280-25-030142 · wk-form4_1749481340.xml · nonDerivative · entry 4

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,383

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 $488.88 rounded to the nearest hundredth. The highest price at which the shares were sold was $488.96 and the lowest price at which the shares were sold was $488.76. 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.

SEC source: 0001628280-25-030142 · wk-form4_1749481340.xml · nonDerivative · entry 3

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 May 30, 2024.

F3 · price: Represents the weighted average sale price of $487.37 rounded to the nearest hundredth. The highest price at which the shares were sold was $487.68 and the lowest price at which the shares were sold was $487.18. 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.

SEC source: 0001628280-25-030142 · wk-form4_1749481340.xml · nonDerivative · entry 2

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,405

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 $486.43 rounded to the nearest hundredth. The highest price at which the shares were sold was $486.62 and the lowest price at which the shares were sold was $486.26. 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.

SEC source: 0001628280-25-030142 · wk-form4_1749481340.xml · nonDerivative · entry 1

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,408

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.

SEC source: 0001628280-25-029775 · wk-form4_1749161623.xml · nonDerivative · entry 1

ROEDER ROSHAN S · CIK 0001950117 · CVP & Pres. Mission Systems

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 318.91

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 11, 2025.

SEC source: 0001628280-25-029049 · wk-form4_1748981575.xml · nonDerivative · entry 1

Jones Thomas H · CIK 0001834674 · CVP & Pres Aeronautics Systems

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 8,280.595

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 26, 2025.

SEC source: 0001628280-25-027313 · wk-form4_1747946603.xml · nonDerivative · entry 1

Ross Kimberly A. · CIK 0001536350 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,242

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: Represents 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.

SEC source: 0001628280-25-027309 · wk-form4_1747946518.xml · nonDerivative · entry 1

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,409

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) 449 shares of common stock; and (ii) 3,960 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.

SEC source: 0001628280-25-027305 · wk-form4_1747946415.xml · nonDerivative · entry 1

Turley James S · CIK 0001580994 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,297

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) 635 shares of common stock; and (ii) 5,662 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.

SEC source: 0001628280-25-027297 · wk-form4_1747946278.xml · nonDerivative · entry 1

SCHOEWE THOMAS M · CIK 0001161375 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,177

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) 3,160 shares of common stock; and (ii) 13,017 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.

SEC source: 0001628280-25-027293 · wk-form4_1747946168.xml · nonDerivative · entry 1

ROUGHEAD GARY · CIK 0001543052 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,671

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: Represents 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.

SEC source: 0001628280-25-027290 · wk-form4_1747946046.xml · nonDerivative · entry 1

KRISHNA ARVIND · CIK 0001629898 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,034

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: Represents 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.

SEC source: 0001628280-25-027278 · wk-form4_1747945680.xml · nonDerivative · entry 1

Brown Marianne Catherine · CIK 0001804183 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,575

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: Represents 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.

SEC source: 0001628280-25-027287 · wk-form4_1747945951.xml · nonDerivative · entry 1

KLEINER MADELEINE · CIK 0001188275 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,002

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: Represents 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.

SEC source: 0001628280-25-027280 · wk-form4_1747945786.xml · nonDerivative · entry 1

FUDGE ANN M · CIK 0001198098 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,792

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) 1,178 shares of common stock; and (ii) 4,614 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.

SEC source: 0001628280-25-027274 · wk-form4_1747945592.xml · nonDerivative · entry 1

ABNEY DAVID P · CIK 0001229820 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,468

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) 2,083 shares of common stock; and (ii) 385 shares of common stock, including dividends, held in a stock unit account pursuant to the Plan. Dividends earned on shares held in the stock unit account were exempt from Section 16 and not reportable under Rule 16a-11.

SEC source: 0001628280-25-027264 · wk-form4_1747944974.xml · nonDerivative · entry 2

WINSTON MARY A · CIK 0001282797 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,241

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) 78 shares of common stock; and (ii) 1,172 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.

SEC source: 0001628280-25-022488 · wk-form4_1746548453.xml · nonDerivative · entry 7

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,024

F1 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F6 · price: Represents the weighted average sale price of $495.53 rounded to the nearest hundredth. The highest price at which the shares were sold was $495.71 and the lowest price at which the shares were sold was $495.40. 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.

SEC source: 0001628280-25-022488 · wk-form4_1746548453.xml · nonDerivative · entry 6

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,027

F1 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F5 · price: Represents the weighted average sale price of $494.64 rounded to the nearest hundredth. The highest price at which the shares were sold was $494.97 and the lowest price at which the shares were sold was $494.01. 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.

SEC source: 0001628280-25-022488 · wk-form4_1746548453.xml · nonDerivative · entry 5

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,040

F1 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F4 · price: Represents the weighted average sale price of $493.60 rounded to the nearest hundredth. The highest price at which the shares were sold was $493.87 and the lowest price at which the shares were sold was $493.04. 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.

SEC source: 0001628280-25-022488 · wk-form4_1746548453.xml · nonDerivative · entry 4

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,050

F1 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F3 · price: Represents the weighted average sale price of $492.79 rounded to the nearest hundredth. The highest price at which the shares were sold was $492.89 and the lowest price at which the shares were sold was $492.69. 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.

SEC source: 0001628280-25-022488 · wk-form4_1746548453.xml · nonDerivative · entry 3

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,052

F1 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F2 · price: Represents the weighted average sale price of $491.47 rounded to the nearest hundredth. The highest price at which the shares were sold was $491.81 and the lowest price at which the shares were sold was $491.03. 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.

SEC source: 0001628280-25-022488 · wk-form4_1746548453.xml · nonDerivative · entry 2

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,055

F1 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

SEC source: 0001628280-25-022488 · wk-form4_1746548453.xml · nonDerivative · entry 1

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,056

F1 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

SEC source: 0001628280-25-017036 · wk-form4_1744131584.xml · nonDerivative · entry 12

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,057

F1 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

SEC source: 0001628280-25-017036 · wk-form4_1744131584.xml · nonDerivative · entry 11

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,058

F1 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

SEC source: 0001628280-25-017036 · wk-form4_1744131584.xml · nonDerivative · entry 10

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,059

F1 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F8 · price: Represents the weighted average sale price of $483.42 rounded to the nearest hundredth. The highest price at which the shares were sold was $483.88 and the lowest price at which the shares were sold was $483.00. 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.

SEC source: 0001628280-25-017036 · wk-form4_1744131584.xml · nonDerivative · entry 9

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,065

F1 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F7 · price: Represents the weighted average sale price of $482.69 rounded to the nearest hundredth. The highest price at which the shares were sold was $482.87 and the lowest price at which the shares were sold was $482.51. 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.

SEC source: 0001628280-25-017036 · wk-form4_1744131584.xml · nonDerivative · entry 8

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,067

F1 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F6 · price: Represents the weighted average sale price of $481.51 rounded to the nearest hundredth. The highest price at which the shares were sold was $481.55 and the lowest price at which the shares were sold was $481.48. 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.

SEC source: 0001628280-25-017036 · wk-form4_1744131584.xml · nonDerivative · entry 7

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,069

F1 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F5 · price: Represents the weighted average sale price of $480.56 rounded to the nearest hundredth. The highest price at which the shares were sold was $480.95 and the lowest price at which the shares were sold was $480.14. 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.

SEC source: 0001628280-25-017036 · wk-form4_1744131584.xml · nonDerivative · entry 6

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,076

F1 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

SEC source: 0001628280-25-017036 · wk-form4_1744131584.xml · nonDerivative · entry 5

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,077

F1 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F4 · price: Represents the weighted average sale price of $478.51 rounded to the nearest hundredth. The highest price at which the shares were sold was $478.67 and the lowest price at which the shares were sold was $478.34. 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.

SEC source: 0001628280-25-017036 · wk-form4_1744131584.xml · nonDerivative · entry 4

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,081

F1 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F3 · price: Represents the weighted average sale price of $477.49 rounded to the nearest hundredth. The highest price at which the shares were sold was $477.98 and the lowest price at which the shares were sold was $477.01. 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.

SEC source: 0001628280-25-017036 · wk-form4_1744131584.xml · nonDerivative · entry 3

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,083

F1 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F2 · price: Represents the weighted average sale price of $476.28 rounded to the nearest hundredth. The highest price at which the shares were sold was $476.82 and the lowest price at which the shares were sold was $476.01. 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.

SEC source: 0001628280-25-017036 · wk-form4_1744131584.xml · nonDerivative · entry 2

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,088

F1 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

SEC source: 0001628280-25-017036 · wk-form4_1744131584.xml · nonDerivative · entry 1

WELSH MARK A III · CIK 0001692554 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,089

F1 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

SEC source: 0001628280-25-015991 · wk-form4_1743543135.xml · nonDerivative · entry 1

Robinson Graham · CIK 0001810641 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,984

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: Represents shares of common stock, including dividends, held in a stock unit account pursuant to the Plan. Dividends earned on shares held in the stock unit account were exempt from Section 16 and not reportable under rule 16a-11.

SEC source: 0001628280-25-015989 · wk-form4_1743543064.xml · nonDerivative · entry 1

KRISHNA ARVIND · CIK 0001629898 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,649

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: Represents shares of common stock, including dividends, held in a stock unit account pursuant to the Plan. Dividends earned on shares held in the stock unit account were exempt from Section 16 and not reportable under rule 16a-11.

SEC source: 0001628280-25-015987 · wk-form4_1743543013.xml · nonDerivative · entry 1

Brown Marianne Catherine · CIK 0001804183 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,190

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: Represents shares of common stock, including dividends, held in a stock unit account pursuant to the Plan. Dividends earned on shares held in the stock unit account were exempt from Section 16 and not reportable under rule 16a-11.