{"transactions":[{"id":4633920,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":14212,"kind":"person","name":"KRISHNA ARVIND","position":1,"cik":"0001629898","reported_name":"KRISHNA ARVIND","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-10-01T19:07:12.000Z","date":"2026-09-30","kind":"grant","planned":false,"acquired":true,"shares":75,"price":483.48,"value":36261.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"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."}],"balance_after":2837,"source":{"system":"sec-edgar","filing":"0001628280-26-064144","document":"wk-form4_1790867229.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026064144/wk-form4_1790867229.xml","form_type":"4"}},{"id":4633926,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":14438,"kind":"person","name":"Brown Marianne Catherine","position":1,"cik":"0001804183","reported_name":"Brown Marianne Catherine","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-10-01T19:04:44.000Z","date":"2026-09-30","kind":"grant","planned":false,"acquired":true,"shares":96,"price":483.48,"value":46414.08,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"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."}],"balance_after":11706,"source":{"system":"sec-edgar","filing":"0001628280-26-064142","document":"wk-form4_1790867081.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026064142/wk-form4_1790867081.xml","form_type":"4"}},{"id":679141,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":10739,"kind":"person","name":"Warden Kathy J","position":1,"cik":"0001559112","reported_name":"Warden Kathy J","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chair, CEO and President"}}],"security":"Market Stock Units","published_at":"2026-08-21T21:10:25.000Z","date":"2026-08-19","kind":"grant","planned":false,"acquired":true,"shares":35910,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Market Stock Unit (\"MSU\") represents the contingent right to receive, following vesting, between 0% and 150% of one share of the Issuer's common stock, subject to the Issuer's absolute stock price appreciation or depreciation over a performance period ending December 31, 2031. No portion of the MSUs will be earned if the Issuer's stock price depreciates by more than 25%, a 100% (or target) payout is earned if the Issuer's stock price appreciates by 10%, and a 150% payout is earned if the Issuer's stock price appreciates by 50% or more. The target number of MSUs is reported in this Report. Grant awarded pursuant to Rule 16b-3(d)."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each Market Stock Unit (\"MSU\") represents the contingent right to receive, following vesting, between 0% and 150% of one share of the Issuer's common stock, subject to the Issuer's absolute stock price appreciation or depreciation over a performance period ending December 31, 2031. No portion of the MSUs will be earned if the Issuer's stock price depreciates by more than 25%, a 100% (or target) payout is earned if the Issuer's stock price appreciates by 10%, and a 150% payout is earned if the Issuer's stock price appreciates by 50% or more. The target number of MSUs is reported in this Report. Grant awarded pursuant to Rule 16b-3(d)."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each Market Stock Unit (\"MSU\") represents the contingent right to receive, following vesting, between 0% and 150% of one share of the Issuer's common stock, subject to the Issuer's absolute stock price appreciation or depreciation over a performance period ending December 31, 2031. No portion of the MSUs will be earned if the Issuer's stock price depreciates by more than 25%, a 100% (or target) payout is earned if the Issuer's stock price appreciates by 10%, and a 150% payout is earned if the Issuer's stock price appreciates by 50% or more. The target number of MSUs is reported in this Report. Grant awarded pursuant to Rule 16b-3(d)."}],"balance_after":35910,"derivative":{"underlying":"Common Stock","underlying_shares":35910},"source":{"system":"sec-edgar","filing":"0001628280-26-058482","document":"wk-form4_1787346622.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026058482/wk-form4_1787346622.xml","form_type":"4"}},{"id":697710,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":26778,"kind":"person","name":"WELSH MARK A III","position":1,"cik":"0001692554","reported_name":"WELSH MARK A III","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-08-04T17:45:58.000Z","date":"2026-08-03","kind":"sale","planned":true,"acquired":false,"shares":4,"price":554.14,"value":2216.56,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F8","text":"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."}],"balance_after":4393,"source":{"system":"sec-edgar","filing":"0001628280-26-052370","document":"wk-form4_1785865555.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026052370/wk-form4_1785865555.xml","form_type":"4"}},{"id":697709,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":26778,"kind":"person","name":"WELSH MARK A III","position":1,"cik":"0001692554","reported_name":"WELSH MARK A III","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-08-04T17:45:58.000Z","date":"2026-08-03","kind":"sale","planned":true,"acquired":false,"shares":2,"price":553.9,"value":1107.8,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."}],"balance_after":4397,"source":{"system":"sec-edgar","filing":"0001628280-26-052370","document":"wk-form4_1785865555.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026052370/wk-form4_1785865555.xml","form_type":"4"}},{"id":697708,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":26778,"kind":"person","name":"WELSH MARK A III","position":1,"cik":"0001692554","reported_name":"WELSH MARK A III","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-08-04T17:45:58.000Z","date":"2026-08-03","kind":"sale","planned":true,"acquired":false,"shares":2,"price":552.95,"value":1105.9,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."}],"balance_after":4399,"source":{"system":"sec-edgar","filing":"0001628280-26-052370","document":"wk-form4_1785865555.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026052370/wk-form4_1785865555.xml","form_type":"4"}},{"id":697707,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":26778,"kind":"person","name":"WELSH MARK A III","position":1,"cik":"0001692554","reported_name":"WELSH MARK A III","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-08-04T17:45:58.000Z","date":"2026-08-03","kind":"sale","planned":true,"acquired":false,"shares":2,"price":550.68,"value":1101.36,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."}],"balance_after":4401,"source":{"system":"sec-edgar","filing":"0001628280-26-052370","document":"wk-form4_1785865555.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026052370/wk-form4_1785865555.xml","form_type":"4"}},{"id":697706,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":26778,"kind":"person","name":"WELSH MARK A III","position":1,"cik":"0001692554","reported_name":"WELSH MARK A III","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-08-04T17:45:58.000Z","date":"2026-08-03","kind":"sale","planned":true,"acquired":false,"shares":6,"price":549.5,"value":3297.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"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."}],"balance_after":4403,"source":{"system":"sec-edgar","filing":"0001628280-26-052370","document":"wk-form4_1785865555.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026052370/wk-form4_1785865555.xml","form_type":"4"}},{"id":697705,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":26778,"kind":"person","name":"WELSH MARK A III","position":1,"cik":"0001692554","reported_name":"WELSH MARK A III","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-08-04T17:45:58.000Z","date":"2026-08-03","kind":"sale","planned":true,"acquired":false,"shares":10,"price":548.32,"value":5483.2,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"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."}],"balance_after":4409,"source":{"system":"sec-edgar","filing":"0001628280-26-052370","document":"wk-form4_1785865555.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026052370/wk-form4_1785865555.xml","form_type":"4"}},{"id":697704,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":26778,"kind":"person","name":"WELSH MARK A III","position":1,"cik":"0001692554","reported_name":"WELSH MARK A III","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-08-04T17:45:58.000Z","date":"2026-08-03","kind":"sale","planned":true,"acquired":false,"shares":31,"price":547.42,"value":16970.02,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"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."}],"balance_after":4419,"source":{"system":"sec-edgar","filing":"0001628280-26-052370","document":"wk-form4_1785865555.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026052370/wk-form4_1785865555.xml","form_type":"4"}},{"id":697703,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":26778,"kind":"person","name":"WELSH MARK A III","position":1,"cik":"0001692554","reported_name":"WELSH MARK A III","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-08-04T17:45:58.000Z","date":"2026-08-03","kind":"sale","planned":true,"acquired":false,"shares":11,"price":546.42,"value":6010.62,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"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."}],"balance_after":4450,"source":{"system":"sec-edgar","filing":"0001628280-26-052370","document":"wk-form4_1785865555.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026052370/wk-form4_1785865555.xml","form_type":"4"}},{"id":697702,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":26778,"kind":"person","name":"WELSH MARK A III","position":1,"cik":"0001692554","reported_name":"WELSH MARK A III","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-08-04T17:45:58.000Z","date":"2026-08-03","kind":"sale","planned":true,"acquired":false,"shares":19,"price":545.59,"value":10366.21,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"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."}],"balance_after":4461,"source":{"system":"sec-edgar","filing":"0001628280-26-052370","document":"wk-form4_1785865555.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026052370/wk-form4_1785865555.xml","form_type":"4"}},{"id":697701,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":26778,"kind":"person","name":"WELSH MARK A III","position":1,"cik":"0001692554","reported_name":"WELSH MARK A III","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-08-04T17:45:58.000Z","date":"2026-08-03","kind":"sale","planned":true,"acquired":false,"shares":8,"price":544.53,"value":4356.24,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"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."}],"balance_after":4480,"source":{"system":"sec-edgar","filing":"0001628280-26-052370","document":"wk-form4_1785865555.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026052370/wk-form4_1785865555.xml","form_type":"4"}},{"id":721702,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":14438,"kind":"person","name":"Brown Marianne Catherine","position":1,"cik":"0001804183","reported_name":"Brown Marianne Catherine","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-07-01T18:41:02.000Z","date":"2026-06-30","kind":"grant","planned":false,"acquired":true,"shares":91,"price":509.31,"value":46347.21,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"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."}],"balance_after":11558,"source":{"system":"sec-edgar","filing":"0001628280-26-046450","document":"wk-form4_1782931259.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026046450/wk-form4_1782931259.xml","form_type":"4"}},{"id":721701,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":14212,"kind":"person","name":"KRISHNA ARVIND","position":1,"cik":"0001629898","reported_name":"KRISHNA ARVIND","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-07-01T18:40:37.000Z","date":"2026-06-30","kind":"grant","planned":false,"acquired":true,"shares":71,"price":509.31,"value":36161.01,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"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."}],"balance_after":2749,"source":{"system":"sec-edgar","filing":"0001628280-26-046449","document":"wk-form4_1782931234.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026046449/wk-form4_1782931234.xml","form_type":"4"}},{"id":768457,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":38958,"kind":"person","name":"WINSTON MARY A","position":1,"cik":"0001282797","reported_name":"WINSTON MARY A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-21T19:29:57.000Z","date":"2026-05-20","kind":"grant","planned":false,"acquired":true,"shares":349,"price":552.17,"value":192707.33,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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."},{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Amount includes (i) 78 shares of common stock; and (ii) 1,540 shares of common stock, including dividends, held in a stock unit account pursuant to the Plan and the Northrop Grumman 2011\nLong-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."}],"balance_after":1609,"source":{"system":"sec-edgar","filing":"0001628280-26-037211","document":"wk-form4_1779391794.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026037211/wk-form4_1779391794.xml","form_type":"4"}},{"id":768455,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":26778,"kind":"person","name":"WELSH MARK A III","position":1,"cik":"0001692554","reported_name":"WELSH MARK A III","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-21T19:29:02.000Z","date":"2026-05-20","kind":"grant","planned":false,"acquired":true,"shares":349,"price":552.17,"value":192707.33,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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."},{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"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\nLong-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."}],"balance_after":4470,"source":{"system":"sec-edgar","filing":"0001628280-26-037209","document":"wk-form4_1779391739.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026037209/wk-form4_1779391739.xml","form_type":"4"}},{"id":768454,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":14475,"kind":"person","name":"Turley James S","position":1,"cik":"0001580994","reported_name":"Turley James S","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-21T19:28:15.000Z","date":"2026-05-20","kind":"grant","planned":false,"acquired":true,"shares":349,"price":552.17,"value":192707.33,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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."},{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Amount includes (i) 635 shares of common stock; and (ii) 6,103 shares of common stock, including dividends, held in a stock unit account pursuant to the Plan and the Northrop Grumman 2011\nLong-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."}],"balance_after":6738,"source":{"system":"sec-edgar","filing":"0001628280-26-037207","document":"wk-form4_1779391692.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026037207/wk-form4_1779391692.xml","form_type":"4"}},{"id":768453,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":13076,"kind":"person","name":"SCHOEWE THOMAS M","position":1,"cik":"0001161375","reported_name":"SCHOEWE THOMAS M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-21T19:27:23.000Z","date":"2026-05-20","kind":"grant","planned":false,"acquired":true,"shares":349,"price":552.17,"value":192707.33,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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."},{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Amount includes (i) 3,160 shares of common stock; and (ii) 13,577 shares of common stock, including dividends, held in a stock unit account pursuant to the Plan and the Northrop Grumman 2011\nLong-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."}],"balance_after":16737,"source":{"system":"sec-edgar","filing":"0001628280-26-037205","document":"wk-form4_1779391640.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026037205/wk-form4_1779391640.xml","form_type":"4"}},{"id":768452,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":45356,"kind":"person","name":"ROUGHEAD GARY","position":1,"cik":"0001543052","reported_name":"ROUGHEAD GARY","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-21T19:25:40.000Z","date":"2026-05-20","kind":"grant","planned":false,"acquired":true,"shares":349,"price":552.17,"value":192707.33,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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."},{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"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\nshares held in the stock unit account were exempt from Section 16 and not reportable under rule 16a-11."}],"balance_after":12210,"source":{"system":"sec-edgar","filing":"0001628280-26-037203","document":"wk-form4_1779391537.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026037203/wk-form4_1779391537.xml","form_type":"4"}},{"id":768451,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":45355,"kind":"person","name":"Ross Kimberly A.","position":1,"cik":"0001536350","reported_name":"Ross Kimberly A.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-21T19:24:57.000Z","date":"2026-05-20","kind":"grant","planned":false,"acquired":true,"shares":349,"price":552.17,"value":192707.33,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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."},{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"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\nshares held in the stock unit account were exempt from Section 16 and not reportable under rule 16a-11."}],"balance_after":1612,"source":{"system":"sec-edgar","filing":"0001628280-26-037201","document":"wk-form4_1779391495.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026037201/wk-form4_1779391495.xml","form_type":"4"}},{"id":768450,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":14212,"kind":"person","name":"KRISHNA ARVIND","position":1,"cik":"0001629898","reported_name":"KRISHNA ARVIND","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-21T19:24:04.000Z","date":"2026-05-20","kind":"grant","planned":false,"acquired":true,"shares":349,"price":552.17,"value":192707.33,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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."},{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"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\nshares held in the stock unit account were exempt from Section 16 and not reportable under rule 16a-11."}],"balance_after":2666,"source":{"system":"sec-edgar","filing":"0001628280-26-037199","document":"wk-form4_1779391441.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026037199/wk-form4_1779391441.xml","form_type":"4"}},{"id":768449,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":45354,"kind":"person","name":"Grady Christopher W.","position":1,"cik":"0002112505","reported_name":"Grady Christopher W.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-21T19:23:11.000Z","date":"2026-05-20","kind":"grant","planned":false,"acquired":true,"shares":349,"price":552.17,"value":192707.33,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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."},{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents shares of common stock, including dividends, held in a stock unit account pursuant to the Plan and the Northrop Grumman 2024 Long-Term Incentive Stock Plan. Dividends earned on\nshares held in the stock unit account were exempt from Section 16 and not reportable under rule 16a-11."}],"balance_after":421,"source":{"system":"sec-edgar","filing":"0001628280-26-037197","document":"wk-form4_1779391388.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026037197/wk-form4_1779391388.xml","form_type":"4"}},{"id":768448,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":14438,"kind":"person","name":"Brown Marianne Catherine","position":1,"cik":"0001804183","reported_name":"Brown Marianne Catherine","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-21T19:22:20.000Z","date":"2026-05-20","kind":"grant","planned":false,"acquired":true,"shares":349,"price":552.17,"value":192707.33,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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."},{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"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\nshares held in the stock unit account were exempt from Section 16 and not reportable under rule 16a-11."}],"balance_after":11415,"source":{"system":"sec-edgar","filing":"0001628280-26-037195","document":"wk-form4_1779391337.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026037195/wk-form4_1779391337.xml","form_type":"4"}},{"id":768447,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":42615,"kind":"person","name":"ABNEY DAVID P","position":1,"cik":"0001229820","reported_name":"ABNEY DAVID P","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-21T19:20:19.000Z","date":"2026-05-20","kind":"grant","planned":false,"acquired":true,"shares":349,"price":552.17,"value":192707.33,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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."},{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Amount includes (i) 2,475 shares of common stock; and (ii) 349 shares of common stock, including dividends, held in a stock unit account pursuant to the Plan. Dividends earned on shares held in the\nstock unit account were exempt from Section 16 and not reportable under Rule 16a-11."}],"balance_after":2824,"source":{"system":"sec-edgar","filing":"0001628280-26-037192","document":"wk-form4_1779391216.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026037192/wk-form4_1779391216.xml","form_type":"4"}},{"id":792319,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":26778,"kind":"person","name":"WELSH MARK A III","position":1,"cik":"0001692554","reported_name":"WELSH MARK A III","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-05T20:40:03.000Z","date":"2026-05-04","kind":"sale","planned":true,"acquired":false,"shares":1,"price":577.05,"value":577.05,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."}],"balance_after":4121,"source":{"system":"sec-edgar","filing":"0001628280-26-030668","document":"wk-form4_1778013600.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":11,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026030668/wk-form4_1778013600.xml","form_type":"4"}},{"id":792318,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":26778,"kind":"person","name":"WELSH MARK A III","position":1,"cik":"0001692554","reported_name":"WELSH MARK A III","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-05T20:40:03.000Z","date":"2026-05-04","kind":"sale","planned":true,"acquired":false,"shares":7,"price":576.38,"value":4034.66,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F10","text":"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."}],"balance_after":4122,"source":{"system":"sec-edgar","filing":"0001628280-26-030668","document":"wk-form4_1778013600.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026030668/wk-form4_1778013600.xml","form_type":"4"}},{"id":792317,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":26778,"kind":"person","name":"WELSH MARK A III","position":1,"cik":"0001692554","reported_name":"WELSH MARK A III","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-05T20:40:03.000Z","date":"2026-05-04","kind":"sale","planned":true,"acquired":false,"shares":4,"price":575.59,"value":2302.36,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F9","text":"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."}],"balance_after":4129,"source":{"system":"sec-edgar","filing":"0001628280-26-030668","document":"wk-form4_1778013600.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026030668/wk-form4_1778013600.xml","form_type":"4"}},{"id":792316,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":26778,"kind":"person","name":"WELSH MARK A III","position":1,"cik":"0001692554","reported_name":"WELSH MARK A III","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-05T20:40:03.000Z","date":"2026-05-04","kind":"sale","planned":true,"acquired":false,"shares":2,"price":574.51,"value":1149.02,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F8","text":"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."}],"balance_after":4133,"source":{"system":"sec-edgar","filing":"0001628280-26-030668","document":"wk-form4_1778013600.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026030668/wk-form4_1778013600.xml","form_type":"4"}},{"id":792315,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":26778,"kind":"person","name":"WELSH MARK A III","position":1,"cik":"0001692554","reported_name":"WELSH MARK A III","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-05T20:40:03.000Z","date":"2026-05-04","kind":"sale","planned":true,"acquired":false,"shares":14,"price":573.51,"value":8029.14,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"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."}],"balance_after":4135,"source":{"system":"sec-edgar","filing":"0001628280-26-030668","document":"wk-form4_1778013600.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026030668/wk-form4_1778013600.xml","form_type":"4"}},{"id":792314,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":26778,"kind":"person","name":"WELSH MARK A III","position":1,"cik":"0001692554","reported_name":"WELSH MARK A III","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-05T20:40:03.000Z","date":"2026-05-04","kind":"sale","planned":true,"acquired":false,"shares":6,"price":572.72,"value":3436.32,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"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."}],"balance_after":4149,"source":{"system":"sec-edgar","filing":"0001628280-26-030668","document":"wk-form4_1778013600.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026030668/wk-form4_1778013600.xml","form_type":"4"}},{"id":792313,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":26778,"kind":"person","name":"WELSH MARK A III","position":1,"cik":"0001692554","reported_name":"WELSH MARK A III","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-05T20:40:03.000Z","date":"2026-05-04","kind":"sale","planned":true,"acquired":false,"shares":3,"price":571.74,"value":1715.22,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"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."}],"balance_after":4155,"source":{"system":"sec-edgar","filing":"0001628280-26-030668","document":"wk-form4_1778013600.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026030668/wk-form4_1778013600.xml","form_type":"4"}},{"id":792312,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":26778,"kind":"person","name":"WELSH MARK A III","position":1,"cik":"0001692554","reported_name":"WELSH MARK A III","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-05T20:40:03.000Z","date":"2026-05-04","kind":"sale","planned":true,"acquired":false,"shares":43,"price":570.47,"value":24530.21,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"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."}],"balance_after":4158,"source":{"system":"sec-edgar","filing":"0001628280-26-030668","document":"wk-form4_1778013600.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026030668/wk-form4_1778013600.xml","form_type":"4"}},{"id":792311,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":26778,"kind":"person","name":"WELSH MARK A III","position":1,"cik":"0001692554","reported_name":"WELSH MARK A III","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-05T20:40:03.000Z","date":"2026-05-04","kind":"sale","planned":true,"acquired":false,"shares":9,"price":569.49,"value":5125.41,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"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."}],"balance_after":4201,"source":{"system":"sec-edgar","filing":"0001628280-26-030668","document":"wk-form4_1778013600.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026030668/wk-form4_1778013600.xml","form_type":"4"}},{"id":792310,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":26778,"kind":"person","name":"WELSH MARK A III","position":1,"cik":"0001692554","reported_name":"WELSH MARK A III","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-05T20:40:03.000Z","date":"2026-05-04","kind":"sale","planned":true,"acquired":false,"shares":5,"price":568.75,"value":2843.75,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"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."}],"balance_after":4210,"source":{"system":"sec-edgar","filing":"0001628280-26-030668","document":"wk-form4_1778013600.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026030668/wk-form4_1778013600.xml","form_type":"4"}},{"id":792309,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":26778,"kind":"person","name":"WELSH MARK A III","position":1,"cik":"0001692554","reported_name":"WELSH MARK A III","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-05T20:40:03.000Z","date":"2026-05-04","kind":"sale","planned":true,"acquired":false,"shares":1,"price":566.6,"value":566.6,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."}],"balance_after":4215,"source":{"system":"sec-edgar","filing":"0001628280-26-030668","document":"wk-form4_1778013600.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026030668/wk-form4_1778013600.xml","form_type":"4"}},{"id":820627,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":14438,"kind":"person","name":"Brown Marianne Catherine","position":1,"cik":"0001804183","reported_name":"Brown Marianne Catherine","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-04-02T14:59:51.000Z","date":"2026-03-31","kind":"grant","planned":false,"acquired":true,"shares":68,"price":682.24,"value":46392.32,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"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."}],"balance_after":11066,"source":{"system":"sec-edgar","filing":"0001628280-26-022976","document":"wk-form4_1775141987.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026022976/wk-form4_1775141987.xml","form_type":"4"}},{"id":820626,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":14212,"kind":"person","name":"KRISHNA ARVIND","position":1,"cik":"0001629898","reported_name":"KRISHNA ARVIND","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-04-02T14:59:04.000Z","date":"2026-03-31","kind":"grant","planned":false,"acquired":true,"shares":53,"price":682.24,"value":36158.72,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"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."}],"balance_after":2317,"source":{"system":"sec-edgar","filing":"0001628280-26-022974","document":"wk-form4_1775141941.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026022974/wk-form4_1775141941.xml","form_type":"4"}},{"id":869525,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":63508,"kind":"person","name":"Simpson Kathryn G","position":1,"cik":"0001986485","reported_name":"Simpson Kathryn G","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Corp VP & General Counsel"}}],"security":"Common Stock","published_at":"2026-03-03T21:03:13.000Z","date":"2026-03-02","kind":"sale","planned":true,"acquired":false,"shares":873,"price":745,"value":650385.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 28, 2025."}],"balance_after":1.39,"source":{"system":"sec-edgar","filing":"0001628280-26-013772","document":"wk-form4_1772571789.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026013772/wk-form4_1772571789.xml","form_type":"4"}},{"id":874971,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":64041,"kind":"person","name":"ROEDER ROSHAN S","position":1,"cik":"0001950117","reported_name":"ROEDER ROSHAN S","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CVP & Pres. Mission Systems"}}],"security":"Common Stock","published_at":"2026-03-02T21:07:51.000Z","date":"2026-02-27","kind":"sale","planned":true,"acquired":false,"shares":1754,"price":720,"value":1262880.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on October 30, 2025."}],"balance_after":2353.39,"source":{"system":"sec-edgar","filing":"0001628280-26-013201","document":"wk-form4_1772485669.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026013201/wk-form4_1772485669.xml","form_type":"4"}},{"id":891124,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":63508,"kind":"person","name":"Simpson Kathryn G","position":1,"cik":"0001986485","reported_name":"Simpson Kathryn G","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Corp VP & General Counsel"}}],"security":"Common Stock","published_at":"2026-02-21T01:01:49.000Z","date":"2026-02-19","kind":"sale","planned":true,"acquired":false,"shares":194,"price":727.62,"value":141158.28,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 28, 2025."}],"balance_after":874.39,"source":{"system":"sec-edgar","filing":"0001628280-26-010367","document":"wk-form4_1771635706.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026010367/wk-form4_1771635706.xml","form_type":"4"}},{"id":891125,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":64041,"kind":"person","name":"ROEDER ROSHAN S","position":1,"cik":"0001950117","reported_name":"ROEDER ROSHAN S","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CVP & Pres. Mission Systems"}}],"security":"Common Stock","published_at":"2026-02-20T21:47:01.000Z","date":"2026-02-19","kind":"sale","planned":true,"acquired":false,"shares":512,"price":727.62,"value":372541.44,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on October 30, 2025."}],"balance_after":4107.39,"source":{"system":"sec-edgar","filing":"0001628280-26-010267","document":"wk-form4_1771624018.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026010267/wk-form4_1771624018.xml","form_type":"4"}},{"id":891123,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":65486,"kind":"person","name":"Hardesty Michael A","position":1,"cik":"0001569355","reported_name":"Hardesty Michael A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Corp VP, Controller & CAO"}}],"security":"Common Stock","published_at":"2026-02-20T21:42:39.000Z","date":"2026-02-19","kind":"sale","planned":false,"acquired":false,"shares":147,"price":732.98,"value":107748.06,"ownership":{"direct":true},"balance_after":2525.29,"source":{"system":"sec-edgar","filing":"0001628280-26-010262","document":"wk-form4_1771623755.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026010262/wk-form4_1771623755.xml","form_type":"4"}},{"id":893966,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":45354,"kind":"person","name":"Grady Christopher W.","position":1,"cik":"0002112505","reported_name":"Grady Christopher W.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-19T21:57:02.000Z","date":"2026-02-12","kind":"grant","planned":false,"acquired":true,"shares":71,"price":695.06,"value":49349.26,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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."},{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents shares of common stock held in a stock unit account pursuant to the Plan."}],"balance_after":71,"source":{"system":"sec-edgar","filing":"0001628280-26-009855","document":"wk-form4_1771538220.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026009855/wk-form4_1771538220.xml","form_type":"4"}},{"id":893965,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":65717,"kind":"person","name":"Davies Benjamin R.","position":1,"cik":"0002026085","reported_name":"Davies Benjamin R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CVP & Pres. Defense Systems"}}],"security":"Restricted Stock Rights","published_at":"2026-02-19T21:30:10.000Z","date":"2026-02-17","kind":"exercise","planned":false,"acquired":false,"shares":274,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each Restricted Stock Right (\"RSR\") represents a contingent right to receive an equivalent number of shares in Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Each Restricted Stock Right (\"RSR\") represents a contingent right to receive an equivalent number of shares in Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Shares issued upon vesting of RSRs granted under the 2011 Long-Term Incentive Stock Plan (\"2011 LTISP\") on 2/16/23 that vested on 2/17/26."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F5","text":"Total amount includes (i) 641 RSRs granted under the 2011 LTISP on 11/1/23 that will vest on 11/2/26; (ii) 1,008 RSRs granted under the 2011 LTISP on 2/14/24 that will vest on 2/16/27; (iii) 638 RSRs granted under the 2011 LTISP on 7/31/24 that will vest on 8/2/27; (iv) 2,456 RSRs granted under the 2024 LTISP on 2/18/25 that will vest on 2/18/28; and (v) 1,701 RSRs granted under 2024 LTISP on 2/11/26 that will vest on 2/12/29."}],"balance_after":6444,"derivative":{"underlying":"Common Stock","underlying_shares":274},"source":{"system":"sec-edgar","filing":"0001628280-26-009800","document":"wk-form4_1771536607.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026009800/wk-form4_1771536607.xml","form_type":"4"}},{"id":893964,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":65717,"kind":"person","name":"Davies Benjamin R.","position":1,"cik":"0002026085","reported_name":"Davies Benjamin R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CVP & Pres. Defense Systems"}}],"security":"Common Stock","published_at":"2026-02-19T21:30:10.000Z","date":"2026-02-18","kind":"sale","planned":false,"acquired":false,"shares":2189.04,"price":719.61,"value":1575255.0744,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents the weighted average sale price of $719.61 rounded to the nearest hundredth. The highest price at which the shares were sold was $719.935 and the lowest price at which the shares were sold was $719.55. The reporting person undertakes to provide to the Issuer, any 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."}],"balance_after":151,"source":{"system":"sec-edgar","filing":"0001628280-26-009800","document":"wk-form4_1771536607.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026009800/wk-form4_1771536607.xml","form_type":"4"}},{"id":893963,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":65717,"kind":"person","name":"Davies Benjamin R.","position":1,"cik":"0002026085","reported_name":"Davies Benjamin R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CVP & Pres. 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The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each Restricted Performance Stock Right (\"RPSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each Restricted Performance Stock Right (\"RPSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F7","text":"Total amount includes (i) 1,208 RPSRs granted under the 2011 LTISP on 2/14/24 with a measurement period ending on 12/31/26; (ii) 1,225 RPSRs granted under the 2024 LTISP on 2/18/25 with a measurement period ending on 12/31/27; and (iii) 822 RPSRs granted under the 2024 LTISP on 2/11/26 with a measurement period ending 12/31/28."}],"balance_after":3255,"derivative":{"underlying":"Common Stock","underlying_shares":1727.16},"source":{"system":"sec-edgar","filing":"0001628280-26-008132","document":"wk-form4_1771017496.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026008132/wk-form4_1771017496.xml","form_type":"4"}},{"id":905570,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":65486,"kind":"person","name":"Hardesty Michael A","position":1,"cik":"0001569355","reported_name":"Hardesty Michael A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Corp VP, Controller & CAO"}}],"security":"Restricted Stock Rights","published_at":"2026-02-13T21:18:20.000Z","date":"2026-02-11","kind":"grant","planned":false,"acquired":true,"shares":379,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"Each Restricted Stock Right (\"RSR\") represents a contingent right to receive an equivalent number of shares in Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Each Restricted Stock Right (\"RSR\") represents a contingent right to receive an equivalent number of shares in Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"The RSRs were granted under the 2024 LTISP on 2/11/26 and will vest on 2/12/29."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F6","text":"Total amount includes (i) 538 RSRs granted under the 2011 LTISP on 2/16/23 that will vest on 2/17/26; (ii) 554 RSRs granted under the 2011 LTISP on 2/14/24 that will vest on 2/16/27; (iii) 561 RSRs granted under the 2024 LTISP on 2/18/25 that will vest on 2/18/28; and (iv) 379 RSRs granted under 2024 LTISP on 2/11/26 that will vest on 2/12/29."}],"balance_after":2032,"derivative":{"underlying":"Common Stock","underlying_shares":379},"source":{"system":"sec-edgar","filing":"0001628280-26-008132","document":"wk-form4_1771017496.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026008132/wk-form4_1771017496.xml","form_type":"4"}},{"id":905569,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":65486,"kind":"person","name":"Hardesty Michael A","position":1,"cik":"0001569355","reported_name":"Hardesty Michael A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Corp VP, Controller & CAO"}}],"security":"Restricted Performance Stock Rights","published_at":"2026-02-13T21:18:20.000Z","date":"2026-02-11","kind":"grant","planned":false,"acquired":true,"shares":1382.16,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Performance Stock Right (\"RPSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"shares","element":"transactionShares","label":"F2","text":"The RPSRs acquired include (i) 560.16 vested RPSRs with respect to the measurement period ended 12/31/25 acquired due to settlement of the RPSRs granted under the 2011 Long-Term Incentive Stock Plan (\"2011 LTISP\") on 2/16/23 that resulted in settlement at 148% of the target award; and (ii) 822 unvested RPSRs granted under the 2024 Long-Term Incentive Stock Plan (the \"2024 LTISP\") on 2/11/26 with a measurement period ending on 12/31/28.  A total of 1,727.16 shares were issued in settlement of the 2023 RPSRs with a measurement period that ended 12/31/25, and the target award amount of 1,167 RPSRs was previously reported in connection with the grant of the 2023 RPSRs."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each Restricted Performance Stock Right (\"RPSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each Restricted Performance Stock Right (\"RPSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Total amount includes (i) 1,727.16 vested RPSRs granted under the 2011 LTISP on 2/16/23 with a measurement period ended on 12/31/25; (ii) 1,208 RPSRs granted under the 2011 LTISP on 2/14/24 with a measurement period ending on 12/31/26; (iii) 1,225 RPSRs granted under the 2024 LTISP on 2/18/25 with a measurement period ending on 12/31/27; and (iv) 822 RPSRs granted under the 2024 LTISP on 2/11/26 with a measurement period ending on 12/31/28."}],"balance_after":4982.16,"derivative":{"underlying":"Common Stock","underlying_shares":1382.16},"source":{"system":"sec-edgar","filing":"0001628280-26-008132","document":"wk-form4_1771017496.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026008132/wk-form4_1771017496.xml","form_type":"4"}},{"id":905568,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":65486,"kind":"person","name":"Hardesty Michael A","position":1,"cik":"0001569355","reported_name":"Hardesty Michael A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Corp VP, Controller & CAO"}}],"security":"Common Stock","published_at":"2026-02-13T21:18:20.000Z","date":"2026-02-11","kind":"tax_withholding","planned":false,"acquired":false,"shares":566,"price":678.83,"value":384217.78,"ownership":{"direct":true},"balance_after":3876.81,"source":{"system":"sec-edgar","filing":"0001628280-26-008132","document":"wk-form4_1771017496.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026008132/wk-form4_1771017496.xml","form_type":"4"}},{"id":905567,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":65486,"kind":"person","name":"Hardesty Michael A","position":1,"cik":"0001569355","reported_name":"Hardesty Michael A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Corp VP, Controller & CAO"}}],"security":"Common Stock","published_at":"2026-02-13T21:18:20.000Z","date":"2026-02-11","kind":"exercise","planned":false,"acquired":true,"shares":1727.16,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":4442.81,"source":{"system":"sec-edgar","filing":"0001628280-26-008132","document":"wk-form4_1771017496.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026008132/wk-form4_1771017496.xml","form_type":"4"}},{"id":905563,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":65715,"kind":"person","name":"Jones Thomas H","position":1,"cik":"0001834674","reported_name":"Jones Thomas H","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CVP & Pres Aeronautics Systems"}}],"security":"Restricted Performance Stock Rights","published_at":"2026-02-13T21:17:41.000Z","date":"2026-02-11","kind":"exercise","planned":false,"acquired":false,"shares":6910.12,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Performance Stock Right (\"RPSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each Restricted Performance Stock Right (\"RPSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each Restricted Performance Stock Right (\"RPSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F7","text":"Total amount includes (i) 5,133 RPSRs granted under the 2011 LTISP on 2/14/24 with a measurement period ending on 12/31/26; (ii) 5,355 RPSRs granted under the 2024 LTISP on 2/18/25 with a measurement period ending on 12/31/27; and (iii) 3,686 RPSRs granted under the 2024 LTISP on 2/11/26 with a measurement period ending 12/31/28."}],"balance_after":14174,"derivative":{"underlying":"Common Stock","underlying_shares":6910.12},"source":{"system":"sec-edgar","filing":"0001628280-26-008130","document":"wk-form4_1771017459.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026008130/wk-form4_1771017459.xml","form_type":"4"}},{"id":905562,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":65715,"kind":"person","name":"Jones Thomas H","position":1,"cik":"0001834674","reported_name":"Jones Thomas H","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CVP & Pres Aeronautics Systems"}}],"security":"Restricted Stock Rights","published_at":"2026-02-13T21:17:41.000Z","date":"2026-02-11","kind":"grant","planned":false,"acquired":true,"shares":1701,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"Each Restricted Stock Right (\"RSR\") represents a contingent right to receive an equivalent number of shares in Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Each Restricted Stock Right (\"RSR\") represents a contingent right to receive an equivalent number of shares in Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"The RSRs were granted under the 2024 LTISP on 2/11/26 and will vest on 2/12/29."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F6","text":"Total amount includes (i) 2,152 RSRs granted under the 2011 LTISP on 2/16/23 that will vest on 2/17/26; (ii) 2,356 RSRs granted under the 2011 LTISP on 2/14/24 that will vest on 2/16/27; (iii) 2,456 RSRs granted under the 2024 LTISP on 2/18/25 that will vest on 2/18/28; and (iv) 1,701 RSRs granted under 2024 LTISP on 2/11/26 that will vest on 2/12/29."}],"balance_after":8665,"derivative":{"underlying":"Common Stock","underlying_shares":1701},"source":{"system":"sec-edgar","filing":"0001628280-26-008130","document":"wk-form4_1771017459.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026008130/wk-form4_1771017459.xml","form_type":"4"}},{"id":905561,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":65715,"kind":"person","name":"Jones Thomas H","position":1,"cik":"0001834674","reported_name":"Jones Thomas H","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CVP & Pres Aeronautics Systems"}}],"security":"Restricted Performance Stock Rights","published_at":"2026-02-13T21:17:41.000Z","date":"2026-02-11","kind":"grant","planned":false,"acquired":true,"shares":5927.12,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Performance Stock Right (\"RPSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"shares","element":"transactionShares","label":"F2","text":"The RPSRs acquired include (i) 2,241.12 vested RPSRs with respect to the measurement period ended 12/31/25 acquired due to settlement of the RPSRs granted under the 2011 Long-Term Incentive Stock Plan (\"2011 LTISP\") on 2/16/23 that resulted in settlement at 148% of the target award; and (ii) 3,686 unvested RPSRs granted under the 2024 Long-Term Incentive Stock Plan (the \"2024 LTISP\") on 2/11/26 with a measurement period ending on 12/31/28.  A total of 6,910.12 shares were issued in settlement of the 2023 RPSRs with a measurement period that ended 12/31/25, and the target award amount of 4,669 RPSRs was previously reported in connection with the grant of the 2023 RPSRs."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each Restricted Performance Stock Right (\"RPSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each Restricted Performance Stock Right (\"RPSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Total amount includes (i) 6,910.12 vested RPSRs granted under the 2011 LTISP on 2/16/23 with a measurement period ended on 12/31/25; (ii) 5,133 RPSRs granted under the 2011 LTISP on 2/14/24 with a measurement period ending on 12/31/26; (iii) 5,355 RPSRs granted under the 2024 LTISP on 2/18/25 with a measurement period ending on 12/31/27; and (iv) 3,686 RPSRs granted under the 2024 LTISP on 2/11/26 with a measurement period ending on 12/31/28."}],"balance_after":21084.12,"derivative":{"underlying":"Common Stock","underlying_shares":5927.12},"source":{"system":"sec-edgar","filing":"0001628280-26-008130","document":"wk-form4_1771017459.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026008130/wk-form4_1771017459.xml","form_type":"4"}},{"id":905560,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":65715,"kind":"person","name":"Jones Thomas H","position":1,"cik":"0001834674","reported_name":"Jones Thomas H","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CVP & Pres Aeronautics Systems"}}],"security":"Common Stock","published_at":"2026-02-13T21:17:41.000Z","date":"2026-02-11","kind":"tax_withholding","planned":false,"acquired":false,"shares":3059,"price":678.83,"value":2076540.97,"ownership":{"direct":true},"balance_after":10057.715,"source":{"system":"sec-edgar","filing":"0001628280-26-008130","document":"wk-form4_1771017459.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026008130/wk-form4_1771017459.xml","form_type":"4"}},{"id":905559,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":65715,"kind":"person","name":"Jones Thomas H","position":1,"cik":"0001834674","reported_name":"Jones Thomas H","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CVP & Pres Aeronautics Systems"}}],"security":"Common Stock","published_at":"2026-02-13T21:17:41.000Z","date":"2026-02-11","kind":"exercise","planned":false,"acquired":true,"shares":6910.12,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":13116.715,"source":{"system":"sec-edgar","filing":"0001628280-26-008130","document":"wk-form4_1771017459.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026008130/wk-form4_1771017459.xml","form_type":"4"}},{"id":905558,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":63508,"kind":"person","name":"Simpson Kathryn G","position":1,"cik":"0001986485","reported_name":"Simpson Kathryn G","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Corp VP & General Counsel"}}],"security":"Restricted Performance Stock Rights","published_at":"2026-02-13T21:17:13.000Z","date":"2026-02-11","kind":"exercise","planned":false,"acquired":false,"shares":1334.96,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Performance Stock Right (\"RPSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each Restricted Performance Stock Right (\"RPSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each Restricted Performance Stock Right (\"RPSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F7","text":"Total amount includes (i) 3,774 RPSRs granted under the 2011 LTISP on 2/14/24 with a measurement period ending on 12/31/26; (ii) 4,284 RPSRs granted under the 2024 LTISP on 2/18/25 with a measurement period ending on 12/31/27; and (iii) 3,187 RPSRs granted under the 2024 LTISP on 2/11/26 with a measurement period ending 12/31/28."}],"balance_after":11245,"derivative":{"underlying":"Common Stock","underlying_shares":1334.96},"source":{"system":"sec-edgar","filing":"0001628280-26-008127","document":"wk-form4_1771017430.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026008127/wk-form4_1771017430.xml","form_type":"4"}},{"id":905557,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":63508,"kind":"person","name":"Simpson Kathryn G","position":1,"cik":"0001986485","reported_name":"Simpson Kathryn G","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Corp VP & General Counsel"}}],"security":"Restricted Stock Rights","published_at":"2026-02-13T21:17:13.000Z","date":"2026-02-11","kind":"grant","planned":false,"acquired":true,"shares":1471,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"Each Restricted Stock Right (\"RSR\") represents a contingent right to receive an equivalent number of shares in Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Each Restricted Stock Right (\"RSR\") represents a contingent right to receive an equivalent number of shares in Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"The RSRs were granted under the 2024 LTISP on 2/11/26 and will vest on 2/12/29."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F6","text":"Total amount includes (i) 387 RSRs granted under the 2011 LTISP on 2/16/23 that will vest on 2/17/26; (ii) 1,732 RSRs granted under the 2011 LTISP on 2/14/24 that will vest on 2/16/27; (iii) 1,965 RSRs granted under the 2024 LTISP on 2/18/25 that will vest on 2/18/28; and (iv) 1,471 RSRs granted under 2024 LTISP on 2/11/26 that will vest on 2/12/29."}],"balance_after":5555,"derivative":{"underlying":"Common Stock","underlying_shares":1471},"source":{"system":"sec-edgar","filing":"0001628280-26-008127","document":"wk-form4_1771017430.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026008127/wk-form4_1771017430.xml","form_type":"4"}},{"id":905556,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":63508,"kind":"person","name":"Simpson Kathryn G","position":1,"cik":"0001986485","reported_name":"Simpson Kathryn G","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Corp VP & General Counsel"}}],"security":"Restricted Performance Stock Rights","published_at":"2026-02-13T21:17:13.000Z","date":"2026-02-11","kind":"grant","planned":false,"acquired":true,"shares":3619.96,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Performance Stock Right (\"RPSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"shares","element":"transactionShares","label":"F2","text":"The RPSRs acquired include (i) 432.96 vested RPSRs with respect to the measurement period ended 12/31/25 acquired due to settlement of the RPSRs granted under the 2011 Long-Term Incentive Stock Plan (\"2011 LTISP\") on 2/16/23 that resulted in settlement at 148% of the target award; and (ii) 3,187 unvested RPSRs granted under the 2024 Long-Term Incentive Stock Plan (the \"2024 LTISP\") on 2/11/26 with a measurement period ending on 12/31/28.  A total of 1,334.96 shares were issued in settlement of the 2023 RPSRs with a measurement period that ended 12/31/25, and the target award amount of 902 RPSRs was previously reported in connection with the grant of the 2023 RPSRs."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each Restricted Performance Stock Right (\"RPSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each Restricted Performance Stock Right (\"RPSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Total amount includes (i) 1,334.96 vested RPSRs granted under the 2011 LTISP on 2/16/23 with a measurement period ended on 12/31/25; (ii) 3,774 RPSRs granted under the 2011 LTISP on 2/14/24 with a measurement period ending on 12/31/26; (iii) 4,284 RPSRs granted under the 2024 LTISP on 2/18/25 with a measurement period ending on 12/31/27; and (iv) 3,187 RPSRs granted under the 2024 LTISP on 2/11/26 with a measurement period ending on 12/31/28."}],"balance_after":12579.96,"derivative":{"underlying":"Common Stock","underlying_shares":3619.96},"source":{"system":"sec-edgar","filing":"0001628280-26-008127","document":"wk-form4_1771017430.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026008127/wk-form4_1771017430.xml","form_type":"4"}},{"id":905555,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":63508,"kind":"person","name":"Simpson Kathryn G","position":1,"cik":"0001986485","reported_name":"Simpson Kathryn G","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Corp VP & General Counsel"}}],"security":"Common Stock","published_at":"2026-02-13T21:17:13.000Z","date":"2026-02-11","kind":"tax_withholding","planned":false,"acquired":false,"shares":461,"price":678.83,"value":312940.63,"ownership":{"direct":true},"balance_after":1653.39,"source":{"system":"sec-edgar","filing":"0001628280-26-008127","document":"wk-form4_1771017430.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026008127/wk-form4_1771017430.xml","form_type":"4"}},{"id":905554,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":63508,"kind":"person","name":"Simpson Kathryn G","position":1,"cik":"0001986485","reported_name":"Simpson Kathryn G","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Corp VP & General Counsel"}}],"security":"Common Stock","published_at":"2026-02-13T21:17:13.000Z","date":"2026-02-11","kind":"exercise","planned":false,"acquired":true,"shares":1334.96,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":2114.39,"source":{"system":"sec-edgar","filing":"0001628280-26-008127","document":"wk-form4_1771017430.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026008127/wk-form4_1771017430.xml","form_type":"4"}},{"id":905553,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":10739,"kind":"person","name":"Warden Kathy J","position":1,"cik":"0001559112","reported_name":"Warden Kathy J","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chair, CEO and President"}}],"security":"Restricted Performance Stock Rights","published_at":"2026-02-13T21:16:33.000Z","date":"2026-02-11","kind":"exercise","planned":false,"acquired":false,"shares":34546.16,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Performance Stock Right (\"RPSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each Restricted Performance Stock Right (\"RPSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each Restricted Performance Stock Right (\"RPSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F7","text":"Total amount includes (i) 24,309 RPSRs granted under the 2011 LTISP on 2/16/24 with a measurement period ending on 12/31/26; (ii) 25,628 RPSRs granted under the 2024 LTISP on 2/18/25 with a measurement period ending on 12/31/27; and (iii) 17,581 RPSRs granted under the 2024 LTISP on 2/11/26 with a measurement period ending 12/31/28."}],"balance_after":67518,"derivative":{"underlying":"Common Stock","underlying_shares":34546.16},"source":{"system":"sec-edgar","filing":"0001628280-26-008125","document":"wk-form4_1771017390.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026008125/wk-form4_1771017390.xml","form_type":"4"}},{"id":905552,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":10739,"kind":"person","name":"Warden Kathy J","position":1,"cik":"0001559112","reported_name":"Warden Kathy J","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chair, CEO and President"}}],"security":"Restricted Stock Rights","published_at":"2026-02-13T21:16:33.000Z","date":"2026-02-11","kind":"grant","planned":false,"acquired":true,"shares":8113,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"Each Restricted Stock Right (\"RSR\") represents a contingent right to receive an equivalent number of shares in Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Each Restricted Stock Right (\"RSR\") represents a contingent right to receive an equivalent number of shares in Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"The RSRs were granted under the 2024 LTISP on 2/11/26 and will vest on 2/12/29."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F6","text":"Total amount includes (i) 10,760 RSRs granted under the 2011 LTISP on 2/16/23 that will vest on 2/17/26; (ii) 11,155 RSRs granted under the 2011 LTISP on 2/14/24 that will vest on 2/16/27; (iii) 11,752 RSRs granted under the 2024 LTISP on 2/18/25 that will vest on 2/18/28; and (iv) 8,113 RSRs granted under 2024 LTISP on 2/11/26 that will vest on 2/12/29."}],"balance_after":41780,"derivative":{"underlying":"Common Stock","underlying_shares":8113},"source":{"system":"sec-edgar","filing":"0001628280-26-008125","document":"wk-form4_1771017390.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026008125/wk-form4_1771017390.xml","form_type":"4"}},{"id":905551,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":10739,"kind":"person","name":"Warden Kathy J","position":1,"cik":"0001559112","reported_name":"Warden Kathy J","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chair, CEO and President"}}],"security":"Restricted Performance Stock Rights","published_at":"2026-02-13T21:16:33.000Z","date":"2026-02-11","kind":"grant","planned":false,"acquired":true,"shares":28785.16,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Performance Stock Right (\"RPSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"shares","element":"transactionShares","label":"F2","text":"The RPSRs acquired include (i) 11,204.16 vested RPSRs with respect to the measurement period ended 12/31/25 acquired due to settlement of the RPSRs granted under the 2011 Long-Term Incentive Stock Plan (\"2011 LTISP\") on 2/16/23 that resulted in settlement at 148% of the target award; and (ii) 17,581 unvested RPSRs granted under the 2024 Long-Term Incentive Stock Plan (the \"2024 LTISP\") on 2/11/26 with a measurement period ending on 12/31/28.  A total of 34,546.16 shares were issued in settlement of the 2023 RPSRs with a measurement period that ended 12/31/25, and the target award amount of 23,342  RPSRs was previously reported in connection with the grant of the 2023 RPSRs."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each Restricted Performance Stock Right (\"RPSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each Restricted Performance Stock Right (\"RPSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Total amount includes (i) 34,546.16 vested RPSRs granted under the 2011 LTISP on 2/16/23 with a measurement period ended on 12/31/25; (ii) 24,309 RPSRs granted under the 2011 LTISP on 2/14/24 with a measurement period ending on 12/31/26; (iii) 25,628 RPSRs granted under the 2024 LTISP on 2/18/25 with a measurement period ending on 12/31/27; and (iv) 17,581 RPSRs granted under the 2024 LTISP on 2/11/26 with a measurement period ending on 12/31/28."}],"balance_after":102064.16,"derivative":{"underlying":"Common Stock","underlying_shares":28785.16},"source":{"system":"sec-edgar","filing":"0001628280-26-008125","document":"wk-form4_1771017390.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026008125/wk-form4_1771017390.xml","form_type":"4"}},{"id":905550,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":10739,"kind":"person","name":"Warden Kathy J","position":1,"cik":"0001559112","reported_name":"Warden Kathy J","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chair, CEO and President"}}],"security":"Common Stock","published_at":"2026-02-13T21:16:33.000Z","date":"2026-02-11","kind":"tax_withholding","planned":false,"acquired":false,"shares":15371,"price":678.83,"value":10434295.93,"ownership":{"direct":true},"balance_after":190777.56,"source":{"system":"sec-edgar","filing":"0001628280-26-008125","document":"wk-form4_1771017390.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026008125/wk-form4_1771017390.xml","form_type":"4"}},{"id":905549,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":10739,"kind":"person","name":"Warden Kathy J","position":1,"cik":"0001559112","reported_name":"Warden Kathy J","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chair, CEO and President"}}],"security":"Common Stock","published_at":"2026-02-13T21:16:33.000Z","date":"2026-02-11","kind":"exercise","planned":false,"acquired":true,"shares":34546.16,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":206148.56,"source":{"system":"sec-edgar","filing":"0001628280-26-008125","document":"wk-form4_1771017390.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026008125/wk-form4_1771017390.xml","form_type":"4"}},{"id":905543,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":40058,"kind":"person","name":"Greene John","position":1,"cik":"0001610732","reported_name":"Greene John","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CVP & Chief Financial Officer"}}],"security":"Restricted Stock Rights","published_at":"2026-02-13T21:15:55.000Z","date":"2026-02-11","kind":"grant","planned":false,"acquired":true,"shares":5362,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each Restricted Stock Right (\"RSR\") represents a contingent right to receive an equivalent number of shares in Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Each Restricted Stock Right (\"RSR\") represents a contingent right to receive an equivalent number of shares in Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"The RSRs were granted under the 2024 LTISP on 2/11/26 and will vest on 2/12/29."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F5","text":"Total amount includes (i) 2,298 RSRs granted under the 2024 LTISP on 2/11/26 that will vest on 2/12/29; (ii) 1,532 RSRs granted under the 2024 LTISP on 2/11/26 that will vest on 2/11/27; and (iii) 1,532 RSRs granted under the 2024 LTISP on 2/11/26 that will vest on 2/11/28."}],"balance_after":5362,"derivative":{"underlying":"Common Stock","underlying_shares":5362},"source":{"system":"sec-edgar","filing":"0001628280-26-008122","document":"wk-form4_1771017352.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026008122/wk-form4_1771017352.xml","form_type":"4"}},{"id":905542,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":40058,"kind":"person","name":"Greene John","position":1,"cik":"0001610732","reported_name":"Greene John","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CVP & Chief Financial Officer"}}],"security":"Restricted Performance Stock Rights","published_at":"2026-02-13T21:15:55.000Z","date":"2026-02-11","kind":"grant","planned":false,"acquired":true,"shares":4981,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Performance Stock Right (\"RPSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"shares","element":"transactionShares","label":"F2","text":"The RPSRs acquired include 4,981 unvested RPSRs granted under the 2024 Long-Term Incentive Stock Plan (\"2024 LTISP) on 2/11/26 with a measurement period ending on 12/31/28."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each Restricted Performance Stock Right (\"RPSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each Restricted Performance Stock Right (\"RPSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"The RPSRs acquired include 4,981 unvested RPSRs granted under the 2024 Long-Term Incentive Stock Plan (\"2024 LTISP) on 2/11/26 with a measurement period ending on 12/31/28."}],"balance_after":4981,"derivative":{"underlying":"Common Stock","underlying_shares":4981},"source":{"system":"sec-edgar","filing":"0001628280-26-008122","document":"wk-form4_1771017352.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026008122/wk-form4_1771017352.xml","form_type":"4"}},{"id":905548,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":65717,"kind":"person","name":"Davies Benjamin R.","position":1,"cik":"0002026085","reported_name":"Davies Benjamin R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CVP & Pres. Defense Systems"}}],"security":"Restricted Performance Stock Rights","published_at":"2026-02-13T21:15:21.000Z","date":"2026-02-11","kind":"exercise","planned":false,"acquired":false,"shares":3158.32,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each Restricted Performance Stock Right (\"RPSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d)."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Each Restricted Performance Stock Right (\"RPSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d)."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Each Restricted Performance Stock Right (\"RPSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d)."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F8","text":"Total amount includes (i) 2,352 RPSRs granted under the 2011 LTISP on 2/14/24 with a measurement period ending on 12/31/26; (ii) 1,399 RPSRs granted under the 2011 LTISP on 7/31/24 with a measurement period ending on 12/31/26; (iii) 5,355 RPSRs granted under the 2024 LTISP on 2/18/25 with a measurement period ending 12/31/27; (iv) and 3,686 RPSRs granted under the 2024 LTISP on 2/11/26 with a measurement period ending 12/31/28."}],"balance_after":12792,"derivative":{"underlying":"Common Stock","underlying_shares":3158.32},"source":{"system":"sec-edgar","filing":"0001628280-26-008120","document":"wk-form4_1771017314.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026008120/wk-form4_1771017314.xml","form_type":"4"}},{"id":905547,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":65717,"kind":"person","name":"Davies Benjamin R.","position":1,"cik":"0002026085","reported_name":"Davies Benjamin R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CVP & Pres. Defense Systems"}}],"security":"Restricted Stock Rights","published_at":"2026-02-13T21:15:21.000Z","date":"2026-02-11","kind":"grant","planned":false,"acquired":true,"shares":1701,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F5","text":"Each Restricted Stock Right (\"RSR\") represents a contingent right to receive an equivalent number of shares in Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"Each Restricted Stock Right (\"RSR\") represents a contingent right to receive an equivalent number of shares in Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"The RSRs were granted under the 2024 LTISP on 2/11/26 and will vest on 2/12/29."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F7","text":"Total amount includes (i) 274 RSRs granted under the 2011 LTISP on 2/16/23 that will vest on 2/17/26; (ii) 641 RSRs granted under the 2011 LTISP on 11/1/23 that will vest on 11/2/26; (iii) 1,008 RSRs granted under the 2011 LTISP on 2/14/24 that will vest on 2/16/27; (iv) 638 RSRs granted under the 2011 LTISP on 7/31/24 that will vest on 8/2/27; (v) 2,456 RSRs granted under the 2024 LTISP on 2/18/25 that will vest on 2/18/28; and (v) 1,701 RSRs granted under 2024 LTISP on 2/11/26 that will vest on 2/12/29."}],"balance_after":6718,"derivative":{"underlying":"Common Stock","underlying_shares":1701},"source":{"system":"sec-edgar","filing":"0001628280-26-008120","document":"wk-form4_1771017314.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026008120/wk-form4_1771017314.xml","form_type":"4"}},{"id":905546,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":65717,"kind":"person","name":"Davies Benjamin R.","position":1,"cik":"0002026085","reported_name":"Davies Benjamin R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CVP & Pres. Defense Systems"}}],"security":"Restricted Performance Stock Rights","published_at":"2026-02-13T21:15:21.000Z","date":"2026-02-11","kind":"grant","planned":false,"acquired":true,"shares":4710.32,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each Restricted Performance Stock Right (\"RPSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d)."},{"field":"shares","element":"transactionShares","label":"F3","text":"The RPSRs acquired include (i) 306.72 vested RPSRs with respect to the measurement period ended 12/31/25 acquired due to settlement of the RPSRs granted under the 2011 Long-Term Incentive Stock Plan (\"2011 LTISP\") on 2/16/23 that resulted in settlement at 148% of the target award; (ii) 717.60 vested RPSRS with respect to the measurement period ended 12/31/25 acquired due to settlement of the RPSRs granted under the 2011 LTISP on 11/1/23 that resulted in settlement at 148% of the target award; and (ii) 3,686 unvested RPSRs granted under the 2024 Long-Term Incentive Stock Plan (the \"2024 LTISP\") on 2/11/26 with a measurement period ending on 12/31/28.  A total of 3,158.32 shares were issued in settlement of the 2023 RPSRs with a measurement period that ended 12/31/25, and the target award amount of 2,134 RPSRs was previously reported in connection with the grant of the 2023 RPSRs."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Each Restricted Performance Stock Right (\"RPSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d)."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Each Restricted Performance Stock Right (\"RPSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d)."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Total amount includes (i) 3,158.32 vested RPSRs granted under the 2011 LTISP on 2/16/23 and on 11/1/23 with a measurement period ended on 12/31/25; (ii) 2,352 RPSRs granted under the 2011 LTISP on 2/14/24 with a measurement period ending on 12/31/26; (iii) 1,399 RPSRs granted under the 2011 LTISP on 7/31/24 with a measurement period ending on 12/31/26; (iv) 5,355 RPSRs granted under the 2024 LTISP on 2/18/25 with a measurement period ending on 12/31/27; and (iv) 3,686 RPSRs granted under the 2024 LTISP on 2/11/26 with a measurement period ending on 12/31/28."}],"balance_after":15950.32,"derivative":{"underlying":"Common Stock","underlying_shares":4710.32},"source":{"system":"sec-edgar","filing":"0001628280-26-008120","document":"wk-form4_1771017314.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026008120/wk-form4_1771017314.xml","form_type":"4"}},{"id":905545,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":65717,"kind":"person","name":"Davies Benjamin R.","position":1,"cik":"0002026085","reported_name":"Davies Benjamin R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CVP & Pres. Defense Systems"}}],"security":"Common Stock","published_at":"2026-02-13T21:15:21.000Z","date":"2026-02-11","kind":"tax_withholding","planned":false,"acquired":false,"shares":1214,"price":678.83,"value":824099.62,"ownership":{"direct":true},"balance_after":2189.04,"source":{"system":"sec-edgar","filing":"0001628280-26-008120","document":"wk-form4_1771017314.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026008120/wk-form4_1771017314.xml","form_type":"4"}},{"id":905544,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":65717,"kind":"person","name":"Davies Benjamin R.","position":1,"cik":"0002026085","reported_name":"Davies Benjamin R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CVP & Pres. Defense Systems"}}],"security":"Common Stock","published_at":"2026-02-13T21:15:21.000Z","date":"2026-02-11","kind":"exercise","planned":false,"acquired":true,"shares":3158.32,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":3403.04,"source":{"system":"sec-edgar","filing":"0001628280-26-008120","document":"wk-form4_1771017314.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026008120/wk-form4_1771017314.xml","form_type":"4"}},{"id":905541,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":65716,"kind":"person","name":"Fleming Robert J.","position":1,"cik":"0001995165","reported_name":"Fleming Robert J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CVP and Pres. Space Systems"}}],"security":"Restricted Performance Stock Rights","published_at":"2026-02-13T21:14:29.000Z","date":"2026-02-11","kind":"exercise","planned":false,"acquired":false,"shares":913.16,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Performance Stock Right (\"RPSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each Restricted Performance Stock Right (\"RPSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each Restricted Performance Stock Right (\"RPSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F7","text":"Total amount includes (i) 5,133 RPSRs granted under the 2011 LTISP on 2/14/24 with a measurement period ending on 12/31/26; (ii) 5,355 RPSRs granted under the 2024 LTISP on 2/18/25 with a measurement period ending on 12/31/27; and (iii) 3,686 RPSRs granted under the 2024 LTISP on 2/11/26 with a measurement period ending 12/31/28."}],"balance_after":14174,"derivative":{"underlying":"Common Stock","underlying_shares":913.16},"source":{"system":"sec-edgar","filing":"0001628280-26-008117","document":"wk-form4_1771017266.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026008117/wk-form4_1771017266.xml","form_type":"4"}},{"id":905540,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":65716,"kind":"person","name":"Fleming Robert J.","position":1,"cik":"0001995165","reported_name":"Fleming Robert J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CVP and Pres. Space Systems"}}],"security":"Restricted Stock Rights","published_at":"2026-02-13T21:14:29.000Z","date":"2026-02-11","kind":"grant","planned":false,"acquired":true,"shares":1701,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"Each Restricted Stock Right (\"RSR\") represents a contingent right to receive an equivalent number of shares in Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Each Restricted Stock Right (\"RSR\") represents a contingent right to receive an equivalent number of shares in Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"The RSRs were granted under the 2024 LTISP on 2/11/26 and will vest on 2/12/29."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F6","text":"Total amount includes (i) 264 RSRs granted under the 2011 LTISP on 2/16/23 that will vest on 2/17/26; (ii) 2,356 RSRs granted under the 2011 LTISP on 2/14/24 that will vest on 2/16/27; (iii) 2,456 RSRs granted under the 2024 LTISP on 2/18/25 that will vest on 2/18/28; and (iv) 1,701 RSRs granted under 2024 LTISP on 2/11/26 that will vest on 2/12/29."}],"balance_after":6777,"derivative":{"underlying":"Common Stock","underlying_shares":1701},"source":{"system":"sec-edgar","filing":"0001628280-26-008117","document":"wk-form4_1771017266.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000162828026008117/wk-form4_1771017266.xml","form_type":"4"}}],"next_cursor":"2026-02-13T21:14:29.000000Z,905540"}