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The reporting person undertakes to provide to Issuer, any security holder of 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 ranges set forth in this footnote to this Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes 2,251 shares purchased through Issuer's Employee Stock Purchase Plan and approximately 14,773 shares held through Issuer's 401(k) Plan."}],"balance_after":65147,"source":{"system":"sec-edgar","filing":"0001660112-26-000008","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1069258/000166011226000008/primary_doc.xml","form_type":"4"}},{"id":773025,"issuer":{"id":3567,"kind":"organization","name":"KRATOS DEFENSE & SECURITY SOLUTIONS, 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and previously reported on a Form 4 filed January 5, 2022, where 15,000 RSUs vest ratably on each of the first five anniversaries of the January 3, 2022 date of grant."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F9","text":"Includes 2,251 shares purchased through Issuer's Employee Stock Purchase Plan and approximately 14,198 shares held through Issuer's 401(k)."}],"balance_after":60619,"source":{"system":"sec-edgar","filing":"0001660112-26-000001","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1069258/000166011226000001/primary_doc.xml","form_type":"4"}},{"id":965894,"issuer":{"id":3567,"kind":"organization","name":"KRATOS DEFENSE & SECURITY SOLUTIONS, INC.","symbol":"KTOS"},"owners":[{"id":21797,"kind":"person","name":"Mendoza Marie","position":1,"cik":"0001660112","reported_name":"Mendoza 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transaction was effected pursuant to a 10b5-1 trading plan adopted by the reporting person on March 17, 2025."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 2,144 shares purchased through Issuer's Employee Stock Purchase Plan and approximately 14,242 shares held through Issuer's 401(k) Plan."}],"balance_after":59123,"source":{"system":"sec-edgar","filing":"0001660112-25-000012","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1069258/000166011225000012/primary_doc.xml","form_type":"4"}},{"id":1017175,"issuer":{"id":3567,"kind":"organization","name":"KRATOS DEFENSE & SECURITY SOLUTIONS, INC.","symbol":"KTOS"},"owners":[{"id":21797,"kind":"person","name":"Mendoza Marie","position":1,"cik":"0001660112","reported_name":"Mendoza 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was effected pursuant to a 10b5-1 trading plan adopted by the reporting person on March 17, 2025."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 2,144 shares purchased through Issuer's Employee Stock Purchase Plan and approximately 14,214 shares held through Issuer's 401(k) Plan."}],"balance_after":61943,"source":{"system":"sec-edgar","filing":"0001660112-25-000010","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1069258/000166011225000010/primary_doc.xml","form_type":"4"}},{"id":1065780,"issuer":{"id":3567,"kind":"organization","name":"KRATOS DEFENSE & SECURITY SOLUTIONS, INC.","symbol":"KTOS"},"owners":[{"id":21797,"kind":"person","name":"Mendoza Marie","position":1,"cik":"0001660112","reported_name":"Mendoza 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transaction was effected pursuant to a 10b5-1 trading plan adopted by the reporting person on March 17, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $68.14 to $68.73 inclusive. The reporting person undertakes to provide to Issuer, any security holder of 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 ranges set forth in this footnote to this Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes 2,144 shares purchased through Issuer's Employee Stock Purchase Plan and approximately 14,220 shares held through Issuer's 401(k) Plan."}],"balance_after":63457,"source":{"system":"sec-edgar","filing":"0001660112-25-000009","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1069258/000166011225000009/primary_doc.xml","form_type":"4"}},{"id":1065778,"issuer":{"id":3567,"kind":"organization","name":"KRATOS DEFENSE & SECURITY SOLUTIONS, INC.","symbol":"KTOS"},"owners":[{"id":21797,"kind":"person","name":"Mendoza Marie","position":1,"cik":"0001660112","reported_name":"Mendoza Marie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP & General Counsel"}}],"security":"Common Stock","published_at":"2025-08-16T00:13:53.000Z","date":"2025-08-15","kind":"sale","planned":true,"acquired":false,"shares":300,"price":67.63,"value":20289.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a 10b5-1 trading plan adopted by the reporting person on March 17, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $67.13 to $68.09 inclusive. The reporting person undertakes to provide to Issuer, any security holder of 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 ranges set forth in this footnote to this Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes 2,144 shares purchased through Issuer's Employee Stock Purchase Plan and approximately 14,220 shares held through Issuer's 401(k) Plan."}],"balance_after":65057,"source":{"system":"sec-edgar","filing":"0001660112-25-000009","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1069258/000166011225000009/primary_doc.xml","form_type":"4"}},{"id":1085846,"issuer":{"id":3567,"kind":"organization","name":"KRATOS DEFENSE & SECURITY SOLUTIONS, INC.","symbol":"KTOS"},"owners":[{"id":21797,"kind":"person","name":"Mendoza Marie","position":1,"cik":"0001660112","reported_name":"Mendoza Marie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP & General Counsel"}}],"security":"Common Stock","published_at":"2025-07-17T23:44:34.000Z","date":"2025-07-15","kind":"sale","planned":true,"acquired":false,"shares":100,"price":51.78,"value":5178.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a 10b5-1 trading plan adopted by the reporting person on March 17, 2025."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 2,144 shares purchased through Issuer's Employee Stock Purchase Plan and approximately 14,398 shares held through Issuer's 401(k) Plan."}],"balance_after":65535,"source":{"system":"sec-edgar","filing":"0001660112-25-000008","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1069258/000166011225000008/primary_doc.xml","form_type":"4"}},{"id":1085845,"issuer":{"id":3567,"kind":"organization","name":"KRATOS DEFENSE & SECURITY SOLUTIONS, INC.","symbol":"KTOS"},"owners":[{"id":21797,"kind":"person","name":"Mendoza Marie","position":1,"cik":"0001660112","reported_name":"Mendoza Marie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP & General Counsel"}}],"security":"Common Stock","published_at":"2025-07-17T23:44:34.000Z","date":"2025-07-15","kind":"sale","planned":true,"acquired":false,"shares":1900,"price":50.9284,"value":96763.96,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a 10b5-1 trading plan adopted by the reporting person on March 17, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $50.42 to $51.24 inclusive. The reporting person undertakes to provide to Issuer, any security holder of 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 ranges set forth in this footnote to this Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 2,144 shares purchased through Issuer's Employee Stock Purchase Plan and approximately 14,398 shares held through Issuer's 401(k) Plan."}],"balance_after":65635,"source":{"system":"sec-edgar","filing":"0001660112-25-000008","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1069258/000166011225000008/primary_doc.xml","form_type":"4"}},{"id":1106794,"issuer":{"id":3567,"kind":"organization","name":"KRATOS DEFENSE & SECURITY SOLUTIONS, INC.","symbol":"KTOS"},"owners":[{"id":21797,"kind":"person","name":"Mendoza Marie","position":1,"cik":"0001660112","reported_name":"Mendoza Marie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP & General Counsel"}}],"security":"Common Stock","published_at":"2025-06-18T23:34:57.000Z","date":"2025-06-16","kind":"sale","planned":true,"acquired":false,"shares":700,"price":42.2129,"value":29549.03,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a 10b5-1 trading plan adopted by the reporting person on March 17, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $42.18 to $42.26 inclusive. The reporting person undertakes to provide to Issuer, any security holder of 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 ranges set forth in this footnote to this Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes 1,971 shares purchased through Issuer's Employee Stock Purchase Plan and approximately 14,524 shares held through Issuer's 401(k) Plan."}],"balance_after":67488,"source":{"system":"sec-edgar","filing":"0001660112-25-000007","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1069258/000166011225000007/primary_doc.xml","form_type":"4"}},{"id":1106793,"issuer":{"id":3567,"kind":"organization","name":"KRATOS DEFENSE & SECURITY SOLUTIONS, INC.","symbol":"KTOS"},"owners":[{"id":21797,"kind":"person","name":"Mendoza Marie","position":1,"cik":"0001660112","reported_name":"Mendoza Marie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP & General Counsel"}}],"security":"Common Stock","published_at":"2025-06-18T23:34:57.000Z","date":"2025-06-16","kind":"sale","planned":true,"acquired":false,"shares":1719,"price":41.7295,"value":71733.0105,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a 10b5-1 trading plan adopted by the reporting person on March 17, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $41.18 to $42.16 inclusive. The reporting person undertakes to provide to Issuer, any security holder of 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 ranges set forth in this footnote to this Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes 1,971 shares purchased through Issuer's Employee Stock Purchase Plan and approximately 14,524 shares held through Issuer's 401(k) Plan."}],"balance_after":68188,"source":{"system":"sec-edgar","filing":"0001660112-25-000007","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1069258/000166011225000007/primary_doc.xml","form_type":"4"}},{"id":1121847,"issuer":{"id":3567,"kind":"organization","name":"KRATOS DEFENSE & SECURITY SOLUTIONS, 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and previously reported on a Form 4 filed June 5, 2020, where 5,000 RSUs vest ratably on each of the first five anniversaries of the June 4, 2020 date of grant."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes 1,971 shares purchased through Issuer's Employee Stock Purchase Plan and approximately 14,562 shares held through Issuer's 401(k) Plan."}],"balance_after":70443,"source":{"system":"sec-edgar","filing":"0001660112-25-000006","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1069258/000166011225000006/primary_doc.xml","form_type":"4"}},{"id":1204651,"issuer":{"id":3567,"kind":"organization","name":"KRATOS DEFENSE & SECURITY SOLUTIONS, INC.","symbol":"KTOS"},"owners":[{"id":21797,"kind":"person","name":"Mendoza Marie","position":1,"cik":"0001660112","reported_name":"Mendoza 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These shares were sold in multiple transactions at prices ranging from $30.71 to $31.81 inclusive. 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These shares were sold in multiple transactions at prices ranging from $21.81 to $22.50 inclusive. The reporting person undertakes to provide to Issuer, any security holder of 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 ranges set forth in this footnote to this Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 1,738 shares purchased through Issuer's Employee Stock Purchase Plan and approximately 14,508 shares held through Issuer's 401(k) Plan."}],"balance_after":61963,"source":{"system":"sec-edgar","filing":"0001660112-24-000010","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1069258/000166011224000010/primary_doc.xml","form_type":"4"}},{"id":1431739,"issuer":{"id":3567,"kind":"organization","name":"KRATOS DEFENSE & SECURITY SOLUTIONS, INC.","symbol":"KTOS"},"owners":[{"id":21797,"kind":"person","name":"Mendoza Marie","position":1,"cik":"0001660112","reported_name":"Mendoza Marie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP & General Counsel"}}],"security":"Common Stock","published_at":"2024-08-17T01:16:36.000Z","date":"2024-08-15","kind":"sale","planned":true,"acquired":false,"shares":1355,"price":20.0729,"value":27198.7795,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a 10b5-1 trading plan adopted by the reporting person on March 15, 2021, as amended December 4, 2023."},{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a 10b5-1 trading plan adopted by the reporting person on March 15, 2021, as amended December 4, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $19.99 to $20.21 inclusive. The reporting person undertakes to provide to Issuer, any security holder of 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 ranges set forth in this footnote to this Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 1,738 shares purchased through Issuer's Employee Stock Purchase Plan and approximately 14,583 shares held through Issuer's 401(k) Plan."}],"balance_after":63393,"source":{"system":"sec-edgar","filing":"0001660112-24-000009","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1069258/000166011224000009/primary_doc.xml","form_type":"4"}},{"id":1473722,"issuer":{"id":3567,"kind":"organization","name":"KRATOS DEFENSE & SECURITY SOLUTIONS, INC.","symbol":"KTOS"},"owners":[{"id":21797,"kind":"person","name":"Mendoza Marie","position":1,"cik":"0001660112","reported_name":"Mendoza Marie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP & General Counsel"}}],"security":"Common Stock","published_at":"2024-06-20T23:49:06.000Z","date":"2024-06-17","kind":"sale","planned":true,"acquired":false,"shares":1622,"price":19.4748,"value":31588.1256,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a 10b5-1 trading plan adopted by the reporting person on March 15, 2021, as amended December 4, 2023."},{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a 10b5-1 trading plan adopted by the reporting person on March 15, 2021, as amended December 4, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $19.36 to $19.60 inclusive. The reporting person undertakes to provide to Issuer, any security holder of 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 ranges set forth in this footnote to this Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 1,547 shares purchased through Issuer's Employee Stock Purchase Plan and approximately 14,530 shares held through Issuer's 401(k) Plan."}],"balance_after":64504,"source":{"system":"sec-edgar","filing":"0001660112-24-000008","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1069258/000166011224000008/primary_doc.xml","form_type":"4"}},{"id":1490646,"issuer":{"id":3567,"kind":"organization","name":"KRATOS DEFENSE & SECURITY SOLUTIONS, 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and previously reported on a Form 4 filed June 5, 2020, where 5,000 RSUs vest ratably on each of the first five anniversaries of the June 4, 2020 date of grant"},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes 1,547 shares purchased through Issuer's Employee Stock Purchase Plan and approximately 14,450 shares held through Issuer's 401(k)."}],"balance_after":66543,"source":{"system":"sec-edgar","filing":"0001660112-24-000007","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1069258/000166011224000007/primary_doc.xml","form_type":"4"}},{"id":1512250,"issuer":{"id":3567,"kind":"organization","name":"KRATOS DEFENSE & SECURITY SOLUTIONS, INC.","symbol":"KTOS"},"owners":[{"id":21797,"kind":"person","name":"Mendoza Marie","position":1,"cik":"0001660112","reported_name":"Mendoza 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These shares were sold in multiple transactions at prices ranging from $20.17 to $20.25 inclusive. The reporting person undertakes to provide to Issuer, any security holder of 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 ranges set forth in this footnote to this Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 1.547 shares purchased through Issuer's Employee Stock Purchase Plan and approximately 14,422 shares held through Issuer's 401(k) Plan."}],"balance_after":65515,"source":{"system":"sec-edgar","filing":"0001660112-24-000006","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1069258/000166011224000006/primary_doc.xml","form_type":"4"}},{"id":1540406,"issuer":{"id":3567,"kind":"organization","name":"KRATOS DEFENSE & SECURITY SOLUTIONS, INC.","symbol":"KTOS"},"owners":[{"id":21797,"kind":"person","name":"Mendoza Marie","position":1,"cik":"0001660112","reported_name":"Mendoza Marie","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP & General Counsel"}}],"security":"Common Stock","published_at":"2024-04-17T23:58:28.000Z","date":"2024-04-15","kind":"sale","planned":true,"acquired":false,"shares":1500,"price":18.1805,"value":27270.75,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a 10b5-1 trading plan adopted by the reporting person on March 15, 2021, as amended December 4, 2023."},{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a 10b5-1 trading plan adopted by the reporting person on March 15, 2021, as amended December 4, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $18.07 to $18.38 inclusive. The reporting person undertakes to provide to Issuer, any security holder of 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 ranges set forth in this footnote to this Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 1,547 shares purchased through Issuer's Employee Stock Purchase Plan and approximately 14,437 shares held through Issuer's 401(k) Plan."}],"balance_after":67030,"source":{"system":"sec-edgar","filing":"0001660112-24-000005","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1069258/000166011224000005/primary_doc.xml","form_type":"4"}},{"id":1575292,"issuer":{"id":3567,"kind":"organization","name":"KRATOS DEFENSE & SECURITY SOLUTIONS, 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