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the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,439.2000 - $1,440.1700. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":8168,"source":{"system":"sec-edgar","filing":"0001193125-26-035726","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526035726/ownership.xml","form_type":"4"}},{"id":921639,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-03T21:39:31.000Z","date":"2026-02-02","kind":"sale","planned":true,"acquired":false,"shares":270,"price":1438.9134,"value":388506.618,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F8","text":"Price reported constitutes the average weighted price of shares sold. 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The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":8888,"source":{"system":"sec-edgar","filing":"0001193125-26-035726","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526035726/ownership.xml","form_type":"4"}},{"id":921638,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-03T21:39:31.000Z","date":"2026-02-02","kind":"sale","planned":true,"acquired":false,"shares":428,"price":1437.3994,"value":615206.9432,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F7","text":"Price reported constitutes the average weighted price of shares sold. 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The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":9158,"source":{"system":"sec-edgar","filing":"0001193125-26-035726","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526035726/ownership.xml","form_type":"4"}},{"id":921637,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-03T21:39:31.000Z","date":"2026-02-02","kind":"sale","planned":true,"acquired":false,"shares":1497,"price":1436.4265,"value":2150330.4705,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F6","text":"Price reported constitutes the average weighted price of shares sold. 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The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":9586,"source":{"system":"sec-edgar","filing":"0001193125-26-035726","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526035726/ownership.xml","form_type":"4"}},{"id":921636,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-03T21:39:31.000Z","date":"2026-02-02","kind":"sale","planned":true,"acquired":false,"shares":810,"price":1435.6275,"value":1162858.275,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"Price reported constitutes the average weighted price of shares sold. 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The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":11083,"source":{"system":"sec-edgar","filing":"0001193125-26-035726","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526035726/ownership.xml","form_type":"4"}},{"id":921635,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-03T21:39:31.000Z","date":"2026-02-02","kind":"sale","planned":true,"acquired":false,"shares":1462,"price":1434.6305,"value":2097429.791,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Price reported constitutes the average weighted price of shares sold. 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The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":11893,"source":{"system":"sec-edgar","filing":"0001193125-26-035726","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526035726/ownership.xml","form_type":"4"}},{"id":921634,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-03T21:39:31.000Z","date":"2026-02-02","kind":"sale","planned":true,"acquired":false,"shares":3093,"price":1433.4578,"value":4433684.9754,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Price reported constitutes the average weighted price of shares sold. 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The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":13355,"source":{"system":"sec-edgar","filing":"0001193125-26-035726","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526035726/ownership.xml","form_type":"4"}},{"id":921633,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-03T21:39:31.000Z","date":"2026-02-02","kind":"sale","planned":true,"acquired":false,"shares":1364,"price":1432.5282,"value":1953968.4648,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Price reported constitutes the average weighted price of shares sold. 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The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":16448,"source":{"system":"sec-edgar","filing":"0001193125-26-035726","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526035726/ownership.xml","form_type":"4"}},{"id":921632,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-03T21:39:31.000Z","date":"2026-02-02","kind":"sale","planned":true,"acquired":false,"shares":1421,"price":1431.4599,"value":2034104.5179,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Price reported constitutes the average weighted price of shares sold. 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The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":17812,"source":{"system":"sec-edgar","filing":"0001193125-26-035726","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526035726/ownership.xml","form_type":"4"}},{"id":921631,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option","published_at":"2026-02-03T21:37:39.000Z","date":"2026-02-02","kind":"exercise","planned":true,"acquired":false,"shares":25000,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The exercise price has been adjusted for dividends declared since August 1, 2022."}],"balance_after":17940,"derivative":{"exercise_price":341.28,"exercise_date":"2023-09-30","expiration_date":"2029-11-15","underlying":"Common Stock","underlying_shares":25000},"source":{"system":"sec-edgar","filing":"0001193125-26-035714","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":26,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526035714/ownership.xml","form_type":"4"}},{"id":921630,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option.","published_at":"2026-02-03T21:37:39.000Z","date":"2026-02-02","kind":"exercise","planned":true,"acquired":false,"shares":23000,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The exercise price has been adjusted for dividends declared since August 1, 2022."}],"balance_after":20000,"derivative":{"exercise_price":342.31,"exercise_date":"2025-09-30","expiration_date":"2030-11-11","underlying":"Common Stock","underlying_shares":23000},"source":{"system":"sec-edgar","filing":"0001193125-26-035714","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":25,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526035714/ownership.xml","form_type":"4"}},{"id":921629,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-03T21:37:39.000Z","date":"2026-02-02","kind":"sale","planned":true,"acquired":false,"shares":2017,"price":1430.2632,"value":2884840.8744,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F20","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,430.0500 - $1,431.0300. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":19233,"source":{"system":"sec-edgar","filing":"0001193125-26-035714","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":24,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526035714/ownership.xml","form_type":"4"}},{"id":921628,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-03T21:37:39.000Z","date":"2026-02-02","kind":"sale","planned":true,"acquired":false,"shares":1810,"price":1429.6133,"value":2587600.073,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F19","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,429.0500 - $1,430.0400. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":21250,"source":{"system":"sec-edgar","filing":"0001193125-26-035714","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":23,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526035714/ownership.xml","form_type":"4"}},{"id":921627,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-03T21:37:39.000Z","date":"2026-02-02","kind":"sale","planned":true,"acquired":false,"shares":2067,"price":1428.6442,"value":2953007.5614,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F18","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,428.0300 - $1,429.0200. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":23060,"source":{"system":"sec-edgar","filing":"0001193125-26-035714","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":22,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526035714/ownership.xml","form_type":"4"}},{"id":921626,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-03T21:37:39.000Z","date":"2026-02-02","kind":"sale","planned":true,"acquired":false,"shares":6665,"price":1427.3841,"value":9513515.0265,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F17","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,427.0300 - $1,428.0200. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":25127,"source":{"system":"sec-edgar","filing":"0001193125-26-035714","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":21,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526035714/ownership.xml","form_type":"4"}},{"id":921625,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-03T21:37:39.000Z","date":"2026-02-02","kind":"sale","planned":true,"acquired":false,"shares":5665,"price":1426.6062,"value":8081724.123,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F16","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,426.0300 - $1,427.0100. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":31792,"source":{"system":"sec-edgar","filing":"0001193125-26-035714","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":20,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526035714/ownership.xml","form_type":"4"}},{"id":921624,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-03T21:37:39.000Z","date":"2026-02-02","kind":"sale","planned":true,"acquired":false,"shares":5906,"price":1425.5736,"value":8419437.6816,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F15","text":"Price reported constitutes the average weighted price of shares sold. 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The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":37457,"source":{"system":"sec-edgar","filing":"0001193125-26-035714","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":19,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526035714/ownership.xml","form_type":"4"}},{"id":921623,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-03T21:37:39.000Z","date":"2026-02-02","kind":"sale","planned":true,"acquired":false,"shares":4859,"price":1424.4675,"value":6921487.5825,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F14","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,424.0300 - $1,425.0200. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":43363,"source":{"system":"sec-edgar","filing":"0001193125-26-035714","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":18,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526035714/ownership.xml","form_type":"4"}},{"id":921622,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-03T21:37:39.000Z","date":"2026-02-02","kind":"sale","planned":true,"acquired":false,"shares":3997,"price":1423.6631,"value":5690381.4107,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F13","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,423.0200 - $1,424.0100. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":48222,"source":{"system":"sec-edgar","filing":"0001193125-26-035714","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":17,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526035714/ownership.xml","form_type":"4"}},{"id":921621,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-03T21:37:39.000Z","date":"2026-02-02","kind":"sale","planned":true,"acquired":false,"shares":2141,"price":1422.4759,"value":3045520.9019,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F12","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,422.0200 - $1,423.0100. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":52219,"source":{"system":"sec-edgar","filing":"0001193125-26-035714","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":16,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526035714/ownership.xml","form_type":"4"}},{"id":921620,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-03T21:37:39.000Z","date":"2026-02-02","kind":"sale","planned":true,"acquired":false,"shares":861,"price":1421.7299,"value":1224109.4439,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F11","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,421.0200 - $1,422.0100. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":54360,"source":{"system":"sec-edgar","filing":"0001193125-26-035714","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":15,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526035714/ownership.xml","form_type":"4"}},{"id":921619,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-03T21:37:39.000Z","date":"2026-02-02","kind":"sale","planned":true,"acquired":false,"shares":223,"price":1420.5097,"value":316773.6631,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F10","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,420.0200 - $1,420.8800. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":55221,"source":{"system":"sec-edgar","filing":"0001193125-26-035714","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":14,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526035714/ownership.xml","form_type":"4"}},{"id":921618,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-03T21:37:39.000Z","date":"2026-02-02","kind":"sale","planned":true,"acquired":false,"shares":112,"price":1419.432,"value":158976.384,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F9","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,418.8500 - $1,419.7000. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":55444,"source":{"system":"sec-edgar","filing":"0001193125-26-035714","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":13,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526035714/ownership.xml","form_type":"4"}},{"id":921617,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-03T21:37:39.000Z","date":"2026-02-02","kind":"sale","planned":true,"acquired":false,"shares":48,"price":1417.4413,"value":68037.1824,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F8","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,417.4150 - $1,417.5900. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":55556,"source":{"system":"sec-edgar","filing":"0001193125-26-035714","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":12,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526035714/ownership.xml","form_type":"4"}},{"id":921616,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-03T21:37:39.000Z","date":"2026-02-02","kind":"sale","planned":true,"acquired":false,"shares":2,"price":1416.395,"value":2832.79,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F7","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,416.3300 - $1,416.4600. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":55604,"source":{"system":"sec-edgar","filing":"0001193125-26-035714","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":11,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526035714/ownership.xml","form_type":"4"}},{"id":921615,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-03T21:37:39.000Z","date":"2026-02-02","kind":"sale","planned":true,"acquired":false,"shares":52,"price":1415.633,"value":73612.916,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F6","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,415.3000 - $1,416.1000. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":55606,"source":{"system":"sec-edgar","filing":"0001193125-26-035714","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526035714/ownership.xml","form_type":"4"}},{"id":921614,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-03T21:37:39.000Z","date":"2026-02-02","kind":"sale","planned":true,"acquired":false,"shares":58,"price":1414.3607,"value":82032.9206,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,414.3000 - $1,414.6900. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":55658,"source":{"system":"sec-edgar","filing":"0001193125-26-035714","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526035714/ownership.xml","form_type":"4"}},{"id":921613,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-03T21:37:39.000Z","date":"2026-02-02","kind":"sale","planned":true,"acquired":false,"shares":175,"price":1414.0434,"value":247457.595,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,413.3000 - $1,414.2900. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":55716,"source":{"system":"sec-edgar","filing":"0001193125-26-035714","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526035714/ownership.xml","form_type":"4"}},{"id":921612,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-03T21:37:39.000Z","date":"2026-02-02","kind":"sale","planned":true,"acquired":false,"shares":1,"price":1412.26,"value":1412.26,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"balance_after":55891,"source":{"system":"sec-edgar","filing":"0001193125-26-035714","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526035714/ownership.xml","form_type":"4"}},{"id":921611,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-03T21:37:39.000Z","date":"2026-02-02","kind":"sale","planned":true,"acquired":false,"shares":6,"price":1410.98,"value":8465.88,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,410.9300 - $1,411.2300. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":55892,"source":{"system":"sec-edgar","filing":"0001193125-26-035714","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526035714/ownership.xml","form_type":"4"}},{"id":921610,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-03T21:37:39.000Z","date":"2026-02-02","kind":"sale","planned":true,"acquired":false,"shares":2,"price":1409.71,"value":2819.42,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"balance_after":55898,"source":{"system":"sec-edgar","filing":"0001193125-26-035714","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526035714/ownership.xml","form_type":"4"}},{"id":921609,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-03T21:37:39.000Z","date":"2026-02-02","kind":"sale","planned":true,"acquired":false,"shares":218,"price":1407.7647,"value":306892.7046,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,407.1000 - $1,407.8900. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":55900,"source":{"system":"sec-edgar","filing":"0001193125-26-035714","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526035714/ownership.xml","form_type":"4"}},{"id":921608,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common 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constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,407.0100 - $1,408.0000. 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Shares were sold at varying prices in the range of $1,410.4600 - $1,411.4350. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":8498,"source":{"system":"sec-edgar","filing":"0001193125-26-008970","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526008970/ownership.xml","form_type":"4"}},{"id":942044,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-01-09T21:25:39.000Z","date":"2026-01-08","kind":"sale","planned":true,"acquired":false,"shares":480,"price":1409.5663,"value":676591.824,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F6","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,409.1600 - $1,410.0800. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":9428,"source":{"system":"sec-edgar","filing":"0001193125-26-008970","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526008970/ownership.xml","form_type":"4"}},{"id":942043,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-01-09T21:25:39.000Z","date":"2026-01-08","kind":"sale","planned":true,"acquired":false,"shares":5239,"price":1408.4395,"value":7378814.5405,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,408.1500 - $1,409.1100. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":9908,"source":{"system":"sec-edgar","filing":"0001193125-26-008970","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526008970/ownership.xml","form_type":"4"}},{"id":942042,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-01-09T21:25:39.000Z","date":"2026-01-08","kind":"sale","planned":true,"acquired":false,"shares":2722,"price":1407.4564,"value":3831096.3208,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,407.0000 - $1,407.9150. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":15147,"source":{"system":"sec-edgar","filing":"0001193125-26-008970","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526008970/ownership.xml","form_type":"4"}},{"id":942041,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-01-09T21:25:39.000Z","date":"2026-01-08","kind":"sale","planned":true,"acquired":false,"shares":1278,"price":1406.7156,"value":1797782.5368,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,406.0000 - $1,406.9950. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":17869,"source":{"system":"sec-edgar","filing":"0001193125-26-008970","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526008970/ownership.xml","form_type":"4"}},{"id":942040,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-01-09T21:25:39.000Z","date":"2026-01-08","kind":"sale","planned":true,"acquired":false,"shares":6384,"price":1405.3006,"value":8971439.0304,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,405.0000 - $1,405.9900. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":19147,"source":{"system":"sec-edgar","filing":"0001193125-26-008970","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526008970/ownership.xml","form_type":"4"}},{"id":942039,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-01-09T21:25:39.000Z","date":"2026-01-08","kind":"exercise","planned":true,"acquired":true,"shares":17373,"price":342.31,"value":5946951.63,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The exercise price has been adjusted for dividends declared since August 1, 2022."}],"balance_after":25531,"source":{"system":"sec-edgar","filing":"0001193125-26-008970","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526008970/ownership.xml","form_type":"4"}},{"id":946296,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option","published_at":"2026-01-06T21:32:54.000Z","date":"2026-01-05","kind":"exercise","planned":true,"acquired":false,"shares":7060,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"balance_after":42940,"derivative":{"exercise_price":341.28,"exercise_date":"2023-09-30","expiration_date":"2029-11-15","underlying":"Common Stock","underlying_shares":7060},"source":{"system":"sec-edgar","filing":"0001193125-26-004595","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":25,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526004595/ownership.xml","form_type":"4"}},{"id":946295,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option","published_at":"2026-01-06T21:32:54.000Z","date":"2026-01-05","kind":"exercise","planned":true,"acquired":false,"shares":17940,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"balance_after":20000,"derivative":{"exercise_price":105.88,"exercise_date":"2018-09-30","expiration_date":"2028-04-25","underlying":"Common Stock","underlying_shares":17940},"source":{"system":"sec-edgar","filing":"0001193125-26-004595","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":24,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526004595/ownership.xml","form_type":"4"}},{"id":946294,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-01-06T21:32:54.000Z","date":"2026-01-05","kind":"sale","planned":true,"acquired":false,"shares":300,"price":1387.035,"value":416110.5,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F20","text":"Price reported constitutes the average weighted price of shares sold. 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The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":8158,"source":{"system":"sec-edgar","filing":"0001193125-26-004595","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":23,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526004595/ownership.xml","form_type":"4"}},{"id":946293,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-01-06T21:32:54.000Z","date":"2026-01-05","kind":"sale","planned":true,"acquired":false,"shares":274,"price":1384.1186,"value":379248.4964,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F19","text":"Price reported constitutes the average weighted price of shares sold. 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The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":8458,"source":{"system":"sec-edgar","filing":"0001193125-26-004595","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":22,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526004595/ownership.xml","form_type":"4"}},{"id":946292,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-01-06T21:32:54.000Z","date":"2026-01-05","kind":"sale","planned":true,"acquired":false,"shares":1867,"price":1382.6226,"value":2581356.3942,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F18","text":"Price reported constitutes the average weighted price of shares sold. 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The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":8732,"source":{"system":"sec-edgar","filing":"0001193125-26-004595","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":21,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526004595/ownership.xml","form_type":"4"}},{"id":946291,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-01-06T21:32:54.000Z","date":"2026-01-05","kind":"sale","planned":true,"acquired":false,"shares":903,"price":1381.5268,"value":1247518.7004,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F17","text":"Price reported constitutes the average weighted price of shares sold. 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The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":10599,"source":{"system":"sec-edgar","filing":"0001193125-26-004595","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":20,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526004595/ownership.xml","form_type":"4"}},{"id":946290,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-01-06T21:32:54.000Z","date":"2026-01-05","kind":"sale","planned":true,"acquired":false,"shares":385,"price":1380.5337,"value":531505.4745,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F16","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,380.0000 - $1,380.9800. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":11502,"source":{"system":"sec-edgar","filing":"0001193125-26-004595","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":19,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526004595/ownership.xml","form_type":"4"}},{"id":946289,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-01-06T21:32:54.000Z","date":"2026-01-05","kind":"sale","planned":true,"acquired":false,"shares":1218,"price":1379.6401,"value":1680401.6418,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F15","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,379.0000 - $1,379.9800. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":11887,"source":{"system":"sec-edgar","filing":"0001193125-26-004595","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":18,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526004595/ownership.xml","form_type":"4"}},{"id":946288,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-01-06T21:32:54.000Z","date":"2026-01-05","kind":"sale","planned":true,"acquired":false,"shares":1239,"price":1378.5069,"value":1707970.0491,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F14","text":"Price reported constitutes the average weighted price of shares sold. 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The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":13105,"source":{"system":"sec-edgar","filing":"0001193125-26-004595","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":17,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526004595/ownership.xml","form_type":"4"}},{"id":946287,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-01-06T21:32:54.000Z","date":"2026-01-05","kind":"sale","planned":true,"acquired":false,"shares":403,"price":1377.2956,"value":555050.1268,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F13","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,376.8600 - $1,377.7800. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":14344,"source":{"system":"sec-edgar","filing":"0001193125-26-004595","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":16,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526004595/ownership.xml","form_type":"4"}},{"id":946286,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-01-06T21:32:54.000Z","date":"2026-01-05","kind":"sale","planned":true,"acquired":false,"shares":1587,"price":1376.1458,"value":2183943.3846,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F12","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,375.7900 - $1,376.7600. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":14747,"source":{"system":"sec-edgar","filing":"0001193125-26-004595","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":15,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526004595/ownership.xml","form_type":"4"}},{"id":946285,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-01-06T21:32:54.000Z","date":"2026-01-05","kind":"sale","planned":true,"acquired":false,"shares":1338,"price":1375.1611,"value":1839965.5518,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F11","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,374.7750 - $1,375.7200. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":16334,"source":{"system":"sec-edgar","filing":"0001193125-26-004595","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":14,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526004595/ownership.xml","form_type":"4"}},{"id":946284,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-01-06T21:32:54.000Z","date":"2026-01-05","kind":"sale","planned":true,"acquired":false,"shares":1020,"price":1374.2481,"value":1401733.062,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F10","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,373.7400 - $1,374.7300. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":17672,"source":{"system":"sec-edgar","filing":"0001193125-26-004595","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":13,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526004595/ownership.xml","form_type":"4"}},{"id":946283,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-01-06T21:32:54.000Z","date":"2026-01-05","kind":"sale","planned":true,"acquired":false,"shares":481,"price":1373.0119,"value":660418.7239,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F9","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,372.6300 - $1,373.5700. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":18692,"source":{"system":"sec-edgar","filing":"0001193125-26-004595","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":12,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526004595/ownership.xml","form_type":"4"}},{"id":946282,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-01-06T21:32:54.000Z","date":"2026-01-05","kind":"sale","planned":true,"acquired":false,"shares":2084,"price":1372.0398,"value":2859330.9432,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F8","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,371.6300 - $1,372.6200. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":19173,"source":{"system":"sec-edgar","filing":"0001193125-26-004595","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":11,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526004595/ownership.xml","form_type":"4"}},{"id":946281,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-01-06T21:32:54.000Z","date":"2026-01-05","kind":"sale","planned":true,"acquired":false,"shares":1777,"price":1371.0914,"value":2436429.4178,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F7","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,370.5800 - $1,371.5200. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":21257,"source":{"system":"sec-edgar","filing":"0001193125-26-004595","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526004595/ownership.xml","form_type":"4"}},{"id":946280,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-01-06T21:32:54.000Z","date":"2026-01-05","kind":"sale","planned":true,"acquired":false,"shares":4457,"price":1370.1206,"value":6106627.5142,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F6","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,369.5800 - $1,370.5600. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":23034,"source":{"system":"sec-edgar","filing":"0001193125-26-004595","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526004595/ownership.xml","form_type":"4"}},{"id":946279,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-01-06T21:32:54.000Z","date":"2026-01-05","kind":"sale","planned":true,"acquired":false,"shares":3956,"price":1369.0453,"value":5415943.2068,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,368.5800 - $1,369.5700. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":27491,"source":{"system":"sec-edgar","filing":"0001193125-26-004595","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526004595/ownership.xml","form_type":"4"}},{"id":946278,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-01-06T21:32:54.000Z","date":"2026-01-05","kind":"sale","planned":true,"acquired":false,"shares":716,"price":1368.1129,"value":979568.8364,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,367.5700 - $1,368.5500. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":31447,"source":{"system":"sec-edgar","filing":"0001193125-26-004595","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526004595/ownership.xml","form_type":"4"}},{"id":946277,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-01-06T21:32:54.000Z","date":"2026-01-05","kind":"sale","planned":true,"acquired":false,"shares":255,"price":1367.1848,"value":348632.124,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,366.5600 - $1,367.4900. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":32163,"source":{"system":"sec-edgar","filing":"0001193125-26-004595","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526004595/ownership.xml","form_type":"4"}},{"id":946276,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-01-06T21:32:54.000Z","date":"2026-01-05","kind":"sale","planned":true,"acquired":false,"shares":160,"price":1364.5653,"value":218330.448,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,364.4650 - $1,365.0000. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":32418,"source":{"system":"sec-edgar","filing":"0001193125-26-004595","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312526004595/ownership.xml","form_type":"4"}},{"id":946275,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common 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Shares were sold at varying prices in the range of $1,367.2200 - $1,367.2300. The reporting person hereby undertakes, upon request of the Commission, the issuer or a\nsecurity holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":8158,"source":{"system":"sec-edgar","filing":"0001193125-25-309653","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312525309653/ownership.xml","form_type":"4"}},{"id":978904,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-12-05T21:10:17.000Z","date":"2025-12-04","kind":"sale","planned":true,"acquired":false,"shares":495,"price":1366.1918,"value":676264.941,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F8","text":"Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,366.1100- $1,366.5300. The reporting person hereby undertakes, upon request of the Commission, the issuer or a\nsecurity holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":8188,"source":{"system":"sec-edgar","filing":"0001193125-25-309653","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312525309653/ownership.xml","form_type":"4"}},{"id":978903,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-12-05T21:10:17.000Z","date":"2025-12-04","kind":"sale","planned":true,"acquired":false,"shares":1680,"price":1365.3326,"value":2293758.768,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F7","text":"Price reported constitutes the average weighted price of shares sold. 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The reporting person hereby undertakes, upon request of the Commission, the issuer or a\nsecurity holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":8683,"source":{"system":"sec-edgar","filing":"0001193125-25-309653","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312525309653/ownership.xml","form_type":"4"}},{"id":978902,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-12-05T21:10:17.000Z","date":"2025-12-04","kind":"sale","planned":true,"acquired":false,"shares":3139,"price":1364.5755,"value":4283402.4945,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F6","text":"Price reported constitutes the average weighted price of shares sold. 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The reporting person hereby undertakes, upon request of the Commission, the issuer or a\nsecurity holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":8158,"source":{"system":"sec-edgar","filing":"0001193125-25-303877","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312525303877/ownership.xml","form_type":"4"}},{"id":984974,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-12-01T21:07:22.000Z","date":"2025-11-28","kind":"sale","planned":true,"acquired":false,"shares":1545,"price":1361.2498,"value":2103130.941,"ownership":{"direct":false,"nature":"Fortuna Trust dated June 1, 2018"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Price reported constitutes the average weighted price of shares sold. 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The reporting person hereby undertakes, upon request of the Commission, the issuer or a\nsecurity holder of the issuer, to provide full information regarding the number of shares sold at each separate price."}],"balance_after":9753,"source":{"system":"sec-edgar","filing":"0001193125-25-303877","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1431675/000119312525303877/ownership.xml","form_type":"4"}},{"id":984972,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":62533,"kind":"person","name":"Stein Kevin M","position":1,"cik":"0001431675","reported_name":"Stein Kevin M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common 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