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The Reporting Person has paid to the Issuer an amount representing the difference between the purchase and sale prices of the two transactions with respect to such one share of the Issuer's common stock."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Fund, L.P. (\"SF\"). Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP, the registered investment adviser to SF. Stockbridge Associates LLC (\"SA\") is the general partner of SF. The Reporting Person is a managing member of each of BPH, BPSP, SP and SA. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SF. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":366142,"source":{"system":"sec-edgar","filing":"0000919574-26-001436","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957426001436/ownership.xml","form_type":"4"}},{"id":972514,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option","published_at":"2025-12-11T21:13:00.000Z","date":"2025-12-10","kind":"exercise","planned":false,"acquired":false,"shares":4700,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":0,"derivative":{"exercise_price":66.47,"exercise_date":"2018-09-30","expiration_date":"2027-11-08","underlying":"Common Stock","underlying_shares":4700},"source":{"system":"sec-edgar","filing":"0001193125-25-315957","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000119312525315957/ownership.xml","form_type":"4"}},{"id":972513,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-12-11T21:13:00.000Z","date":"2025-12-10","kind":"sale","planned":false,"acquired":false,"shares":74,"price":1291.0322,"value":95536.3828,"ownership":{"direct":true},"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 $1291.0300 - $1,291.0400. 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":5625,"source":{"system":"sec-edgar","filing":"0001193125-25-315957","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000119312525315957/ownership.xml","form_type":"4"}},{"id":972512,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-12-11T21:13:00.000Z","date":"2025-12-10","kind":"sale","planned":false,"acquired":false,"shares":4046,"price":1290.2959,"value":5220537.2114,"ownership":{"direct":true},"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 $1290.0300 - $1,290.5200. 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":5699,"source":{"system":"sec-edgar","filing":"0001193125-25-315957","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000119312525315957/ownership.xml","form_type":"4"}},{"id":972511,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-12-11T21:13:00.000Z","date":"2025-12-10","kind":"sale","planned":false,"acquired":false,"shares":580,"price":1289.3197,"value":747805.426,"ownership":{"direct":true},"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 $1288.9000 - $1,289.5600. 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":9745,"source":{"system":"sec-edgar","filing":"0001193125-25-315957","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000119312525315957/ownership.xml","form_type":"4"}},{"id":972510,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-12-11T21:13:00.000Z","date":"2025-12-10","kind":"exercise","planned":false,"acquired":true,"shares":4700,"price":66.47,"value":312409.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The exercise price has been adjusted for dividends declared since August 1, 2022."}],"balance_after":10325,"source":{"system":"sec-edgar","filing":"0001193125-25-315957","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000119312525315957/ownership.xml","form_type":"4"}},{"id":975856,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-12-10T02:09:55.000Z","date":"2025-12-09","kind":"sale","planned":false,"acquired":false,"shares":15280,"price":1335.72,"value":20409801.6,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":68139,"source":{"system":"sec-edgar","filing":"0000919574-25-007305","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425007305/ownership.xml","form_type":"4"}},{"id":975855,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-12-10T02:09:55.000Z","date":"2025-12-09","kind":"sale","planned":false,"acquired":false,"shares":75673,"price":1335.72,"value":101077939.56,"ownership":{"direct":false,"nature":"By Stockbridge Fund, L.P."},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held by Stockbridge Fund, L.P. (\"SF\"). Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP, the registered investment adviser to SF. Stockbridge Associates LLC (\"SA\") is the general partner of SF. The Reporting Person is a managing member of each of BPH, BPSP, SP and SA. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SF. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":366141,"source":{"system":"sec-edgar","filing":"0000919574-25-007305","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425007305/ownership.xml","form_type":"4"}},{"id":1005679,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option","published_at":"2025-11-06T22:23:40.000Z","date":"2025-11-04","kind":"grant","planned":false,"acquired":true,"shares":518,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"These options are exercisable at 20% per year over five years beginning September 30, 2026 subject to the achievement of annual operating performance targets in each year."}],"balance_after":518,"derivative":{"exercise_price":1291.97,"expiration_date":"2035-11-04","underlying":"Common Stock","underlying_shares":518},"source":{"system":"sec-edgar","filing":"0001193125-25-270140","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000119312525270140/ownership.xml","form_type":"4"}},{"id":1034272,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-09-22T21:00:25.000Z","date":"2025-09-19","kind":"grant","planned":false,"acquired":true,"shares":44,"price":1288.13,"value":56677.72,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Receipt of stock in lieu of payment of semi-annual director fee, based on fair market value in accordance with the Director Share Plan."}],"balance_after":15625,"source":{"system":"sec-edgar","filing":"0001193125-25-211494","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000119312525211494/ownership.xml","form_type":"4"}},{"id":1039166,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-09-16T22:17:24.000Z","date":"2025-09-15","kind":"gift","planned":false,"acquired":false,"shares":10000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F18","text":"Represents shares of Common Stock that were disposed of by the Reporting Person pursuant to a gift to a donor advised fund for no consideration."}],"balance_after":5581,"source":{"system":"sec-edgar","filing":"0000919574-25-005699","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":17,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425005699/ownership.xml","form_type":"4"}},{"id":1039165,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-09-16T22:17:24.000Z","date":"2025-09-12","kind":"sale","planned":false,"acquired":false,"shares":16,"price":1284.1729,"value":20546.7664,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F17","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1283.8479 to $1284.3525. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":83419,"source":{"system":"sec-edgar","filing":"0000919574-25-005699","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":15,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425005699/ownership.xml","form_type":"4"}},{"id":1039164,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-09-16T22:17:24.000Z","date":"2025-09-12","kind":"sale","planned":false,"acquired":false,"shares":197,"price":1283.1869,"value":252787.8193,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F16","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1282.8479 to $1283.8478. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":83435,"source":{"system":"sec-edgar","filing":"0000919574-25-005699","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":14,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425005699/ownership.xml","form_type":"4"}},{"id":1039163,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-09-16T22:17:24.000Z","date":"2025-09-12","kind":"sale","planned":false,"acquired":false,"shares":149,"price":1282.6363,"value":191112.8087,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F15","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1281.8479 to $1282.8478. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":83632,"source":{"system":"sec-edgar","filing":"0000919574-25-005699","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":13,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425005699/ownership.xml","form_type":"4"}},{"id":1039162,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-09-16T22:17:24.000Z","date":"2025-09-12","kind":"sale","planned":false,"acquired":false,"shares":520,"price":1281.2204,"value":666234.608,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F14","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1280.8479 to $1281.8478. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":83781,"source":{"system":"sec-edgar","filing":"0000919574-25-005699","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":12,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425005699/ownership.xml","form_type":"4"}},{"id":1039161,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-09-16T22:17:24.000Z","date":"2025-09-12","kind":"sale","planned":false,"acquired":false,"shares":287,"price":1280.5415,"value":367515.4105,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F13","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1279.8479 to $1280.8478. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":84301,"source":{"system":"sec-edgar","filing":"0000919574-25-005699","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":11,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425005699/ownership.xml","form_type":"4"}},{"id":1039160,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-09-16T22:17:24.000Z","date":"2025-09-12","kind":"sale","planned":false,"acquired":false,"shares":501,"price":1279.1871,"value":640872.7371,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F12","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1278.8479 to $1279.8478. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":84588,"source":{"system":"sec-edgar","filing":"0000919574-25-005699","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425005699/ownership.xml","form_type":"4"}},{"id":1039159,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-09-16T22:17:24.000Z","date":"2025-09-12","kind":"sale","planned":false,"acquired":false,"shares":300,"price":1278.3236,"value":383497.08,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F11","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1277.8479 to $1278.8478. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":85089,"source":{"system":"sec-edgar","filing":"0000919574-25-005699","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425005699/ownership.xml","form_type":"4"}},{"id":1039158,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-09-16T22:17:24.000Z","date":"2025-09-12","kind":"sale","planned":false,"acquired":false,"shares":521,"price":1277.164,"value":665402.444,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F10","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1276.8479 to $1277.8478. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":85389,"source":{"system":"sec-edgar","filing":"0000919574-25-005699","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425005699/ownership.xml","form_type":"4"}},{"id":1039157,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-09-16T22:17:24.000Z","date":"2025-09-12","kind":"sale","planned":false,"acquired":false,"shares":504,"price":1276.4083,"value":643309.7832,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F9","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1275.8479 to $1276.8478. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":85910,"source":{"system":"sec-edgar","filing":"0000919574-25-005699","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425005699/ownership.xml","form_type":"4"}},{"id":1039156,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-09-16T22:17:24.000Z","date":"2025-09-12","kind":"sale","planned":false,"acquired":false,"shares":597,"price":1275.2307,"value":761312.7279,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F8","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1274.8479 to $1275.8478. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":86414,"source":{"system":"sec-edgar","filing":"0000919574-25-005699","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425005699/ownership.xml","form_type":"4"}},{"id":1039155,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-09-16T22:17:24.000Z","date":"2025-09-12","kind":"sale","planned":false,"acquired":false,"shares":488,"price":1274.216,"value":621817.408,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1273.8479 to $1274.8478. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":87011,"source":{"system":"sec-edgar","filing":"0000919574-25-005699","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425005699/ownership.xml","form_type":"4"}},{"id":1039154,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-09-16T22:17:24.000Z","date":"2025-09-12","kind":"sale","planned":false,"acquired":false,"shares":261,"price":1273.55,"value":332396.55,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1272.8479 to $1273.8478. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":87499,"source":{"system":"sec-edgar","filing":"0000919574-25-005699","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425005699/ownership.xml","form_type":"4"}},{"id":1039153,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-09-16T22:17:24.000Z","date":"2025-09-12","kind":"sale","planned":false,"acquired":false,"shares":256,"price":1272.4503,"value":325747.2768,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1271.8479 to $1272.8478. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":87760,"source":{"system":"sec-edgar","filing":"0000919574-25-005699","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425005699/ownership.xml","form_type":"4"}},{"id":1039152,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-09-16T22:17:24.000Z","date":"2025-09-12","kind":"sale","planned":false,"acquired":false,"shares":403,"price":1271.3896,"value":512370.0088,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1270.8479 to $1271.8478. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":88016,"source":{"system":"sec-edgar","filing":"0000919574-25-005699","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425005699/ownership.xml","form_type":"4"}},{"id":1047701,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-09-04T20:39:41.000Z","date":"2025-09-02","kind":"other","planned":false,"acquired":false,"shares":2318,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Stockbridge Fund, L.P."},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents Common Stock of the Issuer distributed by Stockbridge Fund, L.P. to certain of its limited partners and members. The Reporting Person disclaims beneficial ownership in the reported securities except to the extent of his pecuniary interest, if any, therein."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Fund, L.P. (\"SF\"). Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP, the registered investment adviser to SF. Stockbridge Associates LLC (\"SA\") is the general partner of SF. The Reporting Person is a managing member of each of BPH, BPSP, SP and SA. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SF. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":441814,"source":{"system":"sec-edgar","filing":"0000919574-25-005548","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425005548/ownership.xml","form_type":"4"}},{"id":1113107,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-06-13T00:49:17.000Z","date":"2025-06-10","kind":"sale","planned":false,"acquired":false,"shares":40500,"price":1425.01,"value":57712905.0,"ownership":{"direct":false,"nature":"By Stockbridge Fund, L.P."},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Fund, L.P. (\"SF\"). Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP, the registered investment adviser to SF. Stockbridge Associates LLC (\"SA\") is the general partner of SF. The Reporting Person is a managing member of each of BPH, BPSP, SP and SA. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SF. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":444132,"source":{"system":"sec-edgar","filing":"0000919574-25-003573","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425003573/ownership.xml","form_type":"4"}},{"id":1113106,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-06-13T00:49:17.000Z","date":"2025-06-10","kind":"sale","planned":false,"acquired":false,"shares":5200,"price":1425.01,"value":7410052.0,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":88419,"source":{"system":"sec-edgar","filing":"0000919574-25-003573","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425003573/ownership.xml","form_type":"4"}},{"id":1190779,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-26T21:37:40.000Z","date":"2025-03-26","kind":"grant","planned":false,"acquired":true,"shares":42,"price":1346.5,"value":56553.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Receipt of stock in lieu of payment of semi-annual director fee, based on fair market value in accordance with the Director Share Plan."}],"balance_after":15581,"source":{"system":"sec-edgar","filing":"0000950170-25-045482","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000095017025045482/ownership.xml","form_type":"4"}},{"id":1203547,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-17T21:24:10.000Z","date":"2025-03-14","kind":"sale","planned":false,"acquired":false,"shares":3352,"price":1345.2428,"value":4509253.8656,"ownership":{"direct":false,"nature":"By Stockbridge Fund, L.P."},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1344.95 to $1345.665. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Fund, L.P. (\"SF\"). Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP, the registered investment adviser to SF. Stockbridge Associates LLC (\"SA\") is the general partner of SF. The Reporting Person is a managing member of each of BPH, BPSP, SP and SA. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SF. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":484632,"source":{"system":"sec-edgar","filing":"0000919574-25-001987","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001987/ownership.xml","form_type":"4"}},{"id":1203546,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-17T21:24:10.000Z","date":"2025-03-14","kind":"sale","planned":false,"acquired":false,"shares":682,"price":1345.2428,"value":917455.5896,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1344.95 to $1345.665. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":93619,"source":{"system":"sec-edgar","filing":"0000919574-25-001987","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001987/ownership.xml","form_type":"4"}},{"id":1203545,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-17T21:24:10.000Z","date":"2025-03-14","kind":"sale","planned":false,"acquired":false,"shares":1412,"price":1340.85,"value":1893280.2,"ownership":{"direct":false,"nature":"By Stockbridge Fund, L.P."},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1339.95 to $1340.9499. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Fund, L.P. (\"SF\"). Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP, the registered investment adviser to SF. Stockbridge Associates LLC (\"SA\") is the general partner of SF. The Reporting Person is a managing member of each of BPH, BPSP, SP and SA. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SF. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":487984,"source":{"system":"sec-edgar","filing":"0000919574-25-001987","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001987/ownership.xml","form_type":"4"}},{"id":1203544,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-17T21:24:10.000Z","date":"2025-03-14","kind":"sale","planned":false,"acquired":false,"shares":288,"price":1340.85,"value":386164.8,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1339.95 to $1340.9499. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":94301,"source":{"system":"sec-edgar","filing":"0000919574-25-001987","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001987/ownership.xml","form_type":"4"}},{"id":1203543,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-17T21:24:10.000Z","date":"2025-03-14","kind":"sale","planned":false,"acquired":false,"shares":2742,"price":1336.2317,"value":3663947.3214,"ownership":{"direct":false,"nature":"By Stockbridge Fund, L.P."},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1335.95 to $1336.9499. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Fund, L.P. (\"SF\"). Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP, the registered investment adviser to SF. Stockbridge Associates LLC (\"SA\") is the general partner of SF. The Reporting Person is a managing member of each of BPH, BPSP, SP and SA. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SF. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":489396,"source":{"system":"sec-edgar","filing":"0000919574-25-001987","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001987/ownership.xml","form_type":"4"}},{"id":1203542,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-17T21:24:10.000Z","date":"2025-03-14","kind":"sale","planned":false,"acquired":false,"shares":558,"price":1336.2317,"value":745617.2886,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1335.95 to $1336.9499. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":94589,"source":{"system":"sec-edgar","filing":"0000919574-25-001987","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001987/ownership.xml","form_type":"4"}},{"id":1203541,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-17T21:24:10.000Z","date":"2025-03-13","kind":"sale","planned":false,"acquired":false,"shares":791,"price":1335.2189,"value":1056158.1499,"ownership":{"direct":false,"nature":"By Stockbridge Fund, L.P."},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Fund, L.P. (\"SF\"). Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP, the registered investment adviser to SF. Stockbridge Associates LLC (\"SA\") is the general partner of SF. The Reporting Person is a managing member of each of BPH, BPSP, SP and SA. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SF. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":492138,"source":{"system":"sec-edgar","filing":"0000919574-25-001987","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001987/ownership.xml","form_type":"4"}},{"id":1203540,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-17T21:24:10.000Z","date":"2025-03-13","kind":"sale","planned":false,"acquired":false,"shares":209,"price":1335.2189,"value":279060.7501,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":95147,"source":{"system":"sec-edgar","filing":"0000919574-25-001987","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001987/ownership.xml","form_type":"4"}},{"id":1214845,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-11T01:40:28.000Z","date":"2025-03-10","kind":"sale","planned":false,"acquired":false,"shares":1847,"price":1349.21,"value":2491990.87,"ownership":{"direct":false,"nature":"By Stockbridge Fund, L.P."},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F8","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1348.4045 to $1349.21. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Fund, L.P. (\"SF\"). Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP, the registered investment adviser to SF. Stockbridge Associates LLC (\"SA\") is the general partner of SF. The Reporting Person is a managing member of each of BPH, BPSP, SP and SA. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SF. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":492929,"source":{"system":"sec-edgar","filing":"0000919574-25-001879","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":12,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001879/ownership.xml","form_type":"4"}},{"id":1214844,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-11T01:40:28.000Z","date":"2025-03-10","kind":"sale","planned":false,"acquired":false,"shares":153,"price":1349.21,"value":206429.13,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F8","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1348.4045 to $1349.21. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":95356,"source":{"system":"sec-edgar","filing":"0000919574-25-001879","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":11,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001879/ownership.xml","form_type":"4"}},{"id":1214843,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-11T01:40:28.000Z","date":"2025-03-10","kind":"sale","planned":false,"acquired":false,"shares":2309,"price":1345.1132,"value":3105866.3788,"ownership":{"direct":false,"nature":"By Stockbridge Fund, L.P."},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1344.4045 to $1345.4044. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Fund, L.P. (\"SF\"). Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP, the registered investment adviser to SF. Stockbridge Associates LLC (\"SA\") is the general partner of SF. The Reporting Person is a managing member of each of BPH, BPSP, SP and SA. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SF. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":494776,"source":{"system":"sec-edgar","filing":"0000919574-25-001879","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001879/ownership.xml","form_type":"4"}},{"id":1214842,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-11T01:40:28.000Z","date":"2025-03-10","kind":"sale","planned":false,"acquired":false,"shares":191,"price":1345.1132,"value":256916.6212,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1344.4045 to $1345.4044. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":95509,"source":{"system":"sec-edgar","filing":"0000919574-25-001879","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001879/ownership.xml","form_type":"4"}},{"id":1214841,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-11T01:40:28.000Z","date":"2025-03-10","kind":"sale","planned":false,"acquired":false,"shares":1847,"price":1343.89,"value":2482164.83,"ownership":{"direct":false,"nature":"By Stockbridge Fund, L.P."},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1343.4045 to $1344.4044. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Fund, L.P. (\"SF\"). Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP, the registered investment adviser to SF. Stockbridge Associates LLC (\"SA\") is the general partner of SF. The Reporting Person is a managing member of each of BPH, BPSP, SP and SA. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SF. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":497085,"source":{"system":"sec-edgar","filing":"0000919574-25-001879","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001879/ownership.xml","form_type":"4"}},{"id":1214840,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-11T01:40:28.000Z","date":"2025-03-10","kind":"sale","planned":false,"acquired":false,"shares":153,"price":1343.89,"value":205615.17,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1343.4045 to $1344.4044. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":95700,"source":{"system":"sec-edgar","filing":"0000919574-25-001879","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001879/ownership.xml","form_type":"4"}},{"id":1214839,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-11T01:40:28.000Z","date":"2025-03-10","kind":"sale","planned":false,"acquired":false,"shares":2771,"price":1342.95,"value":3721314.45,"ownership":{"direct":false,"nature":"By Stockbridge Fund, L.P."},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1342.4045 to $1343.4044. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Fund, L.P. (\"SF\"). Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP, the registered investment adviser to SF. Stockbridge Associates LLC (\"SA\") is the general partner of SF. The Reporting Person is a managing member of each of BPH, BPSP, SP and SA. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SF. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":498932,"source":{"system":"sec-edgar","filing":"0000919574-25-001879","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001879/ownership.xml","form_type":"4"}},{"id":1214838,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-11T01:40:28.000Z","date":"2025-03-10","kind":"sale","planned":false,"acquired":false,"shares":229,"price":1342.95,"value":307535.55,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1342.4045 to $1343.4044. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":95853,"source":{"system":"sec-edgar","filing":"0000919574-25-001879","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001879/ownership.xml","form_type":"4"}},{"id":1214837,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-11T01:40:28.000Z","date":"2025-03-10","kind":"sale","planned":false,"acquired":false,"shares":2309,"price":1336.4694,"value":3085907.8446,"ownership":{"direct":false,"nature":"By Stockbridge Fund, L.P."},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1336.4045 to $1337.4044. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Fund, L.P. (\"SF\"). Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP, the registered investment adviser to SF. Stockbridge Associates LLC (\"SA\") is the general partner of SF. The Reporting Person is a managing member of each of BPH, BPSP, SP and SA. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SF. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":501703,"source":{"system":"sec-edgar","filing":"0000919574-25-001879","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001879/ownership.xml","form_type":"4"}},{"id":1214836,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-11T01:40:28.000Z","date":"2025-03-10","kind":"sale","planned":false,"acquired":false,"shares":191,"price":1336.4694,"value":255265.6554,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1336.4045 to $1337.4044. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":96082,"source":{"system":"sec-edgar","filing":"0000919574-25-001879","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001879/ownership.xml","form_type":"4"}},{"id":1214835,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-11T01:40:28.000Z","date":"2025-03-10","kind":"sale","planned":false,"acquired":false,"shares":7389,"price":1335.615,"value":9868859.235,"ownership":{"direct":false,"nature":"By Stockbridge Fund, L.P."},"footnotes":[{"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 within the range of $1335.4045 to $1336.4044. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Fund, L.P. (\"SF\"). Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP, the registered investment adviser to SF. Stockbridge Associates LLC (\"SA\") is the general partner of SF. The Reporting Person is a managing member of each of BPH, BPSP, SP and SA. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SF. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":504012,"source":{"system":"sec-edgar","filing":"0000919574-25-001879","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001879/ownership.xml","form_type":"4"}},{"id":1214834,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-11T01:40:28.000Z","date":"2025-03-10","kind":"sale","planned":false,"acquired":false,"shares":611,"price":1335.615,"value":816060.765,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"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 within the range of $1335.4045 to $1336.4044. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":96273,"source":{"system":"sec-edgar","filing":"0000919574-25-001879","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001879/ownership.xml","form_type":"4"}},{"id":1214867,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-11T01:18:38.000Z","date":"2025-03-07","kind":"sale","planned":false,"acquired":false,"shares":3739,"price":1341.0912,"value":5014339.9968,"ownership":{"direct":false,"nature":"By Stockbridge Fund, L.P."},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F14","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1340.8046 to $1341.0912. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Fund, L.P. (\"SF\"). Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP, the registered investment adviser to SF. Stockbridge Associates LLC (\"SA\") is the general partner of SF. The Reporting Person is a managing member of each of BPH, BPSP, SP and SA. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SF. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":511401,"source":{"system":"sec-edgar","filing":"0000919574-25-001878","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":22,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001878/ownership.xml","form_type":"4"}},{"id":1214866,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-11T01:18:38.000Z","date":"2025-03-07","kind":"sale","planned":false,"acquired":false,"shares":261,"price":1341.0912,"value":350024.8032,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F14","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1340.8046 to $1341.0912. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":96884,"source":{"system":"sec-edgar","filing":"0000919574-25-001878","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":21,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001878/ownership.xml","form_type":"4"}},{"id":1214865,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-11T01:18:38.000Z","date":"2025-03-07","kind":"sale","planned":false,"acquired":false,"shares":2805,"price":1339.9363,"value":3758521.3215,"ownership":{"direct":false,"nature":"By Stockbridge Fund, L.P."},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F13","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1339.8046 to $1340.8045. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Fund, L.P. (\"SF\"). Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP, the registered investment adviser to SF. Stockbridge Associates LLC (\"SA\") is the general partner of SF. The Reporting Person is a managing member of each of BPH, BPSP, SP and SA. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SF. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":515140,"source":{"system":"sec-edgar","filing":"0000919574-25-001878","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":20,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001878/ownership.xml","form_type":"4"}},{"id":1214864,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-11T01:18:38.000Z","date":"2025-03-07","kind":"sale","planned":false,"acquired":false,"shares":195,"price":1339.9363,"value":261287.5785,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F13","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1339.8046 to $1340.8045. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":97145,"source":{"system":"sec-edgar","filing":"0000919574-25-001878","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":19,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001878/ownership.xml","form_type":"4"}},{"id":1214863,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-11T01:18:38.000Z","date":"2025-03-07","kind":"sale","planned":false,"acquired":false,"shares":2805,"price":1338.9015,"value":3755618.7075,"ownership":{"direct":false,"nature":"By Stockbridge Fund, L.P."},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F12","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1338.8046 to $1339.8045. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Fund, L.P. (\"SF\"). Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP, the registered investment adviser to SF. Stockbridge Associates LLC (\"SA\") is the general partner of SF. The Reporting Person is a managing member of each of BPH, BPSP, SP and SA. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SF. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":517945,"source":{"system":"sec-edgar","filing":"0000919574-25-001878","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":18,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001878/ownership.xml","form_type":"4"}},{"id":1214862,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-11T01:18:38.000Z","date":"2025-03-07","kind":"sale","planned":false,"acquired":false,"shares":195,"price":1338.9015,"value":261085.7925,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F12","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1338.8046 to $1339.8045. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":97340,"source":{"system":"sec-edgar","filing":"0000919574-25-001878","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":17,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001878/ownership.xml","form_type":"4"}},{"id":1214861,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-11T01:18:38.000Z","date":"2025-03-07","kind":"sale","planned":false,"acquired":false,"shares":1870,"price":1338.2716,"value":2502567.892,"ownership":{"direct":false,"nature":"By Stockbridge Fund, L.P."},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F11","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1337.8046 to $1338.8045. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Fund, L.P. (\"SF\"). Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP, the registered investment adviser to SF. Stockbridge Associates LLC (\"SA\") is the general partner of SF. The Reporting Person is a managing member of each of BPH, BPSP, SP and SA. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SF. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":520750,"source":{"system":"sec-edgar","filing":"0000919574-25-001878","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":16,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001878/ownership.xml","form_type":"4"}},{"id":1214860,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-11T01:18:38.000Z","date":"2025-03-07","kind":"sale","planned":false,"acquired":false,"shares":130,"price":1338.2716,"value":173975.308,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F11","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1337.8046 to $1338.8045. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":97535,"source":{"system":"sec-edgar","filing":"0000919574-25-001878","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":15,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001878/ownership.xml","form_type":"4"}},{"id":1214859,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-11T01:18:38.000Z","date":"2025-03-07","kind":"sale","planned":false,"acquired":false,"shares":7480,"price":1336.989,"value":10000677.72,"ownership":{"direct":false,"nature":"By Stockbridge Fund, L.P."},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F10","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1336.8046 to $1337.8045. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Fund, L.P. (\"SF\"). Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP, the registered investment adviser to SF. Stockbridge Associates LLC (\"SA\") is the general partner of SF. The Reporting Person is a managing member of each of BPH, BPSP, SP and SA. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SF. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":522620,"source":{"system":"sec-edgar","filing":"0000919574-25-001878","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":14,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001878/ownership.xml","form_type":"4"}},{"id":1214858,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-11T01:18:38.000Z","date":"2025-03-07","kind":"sale","planned":false,"acquired":false,"shares":520,"price":1336.989,"value":695234.28,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F10","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1336.8046 to $1337.8045. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":97665,"source":{"system":"sec-edgar","filing":"0000919574-25-001878","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":13,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001878/ownership.xml","form_type":"4"}},{"id":1214857,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-11T01:18:38.000Z","date":"2025-03-06","kind":"sale","planned":false,"acquired":false,"shares":4653,"price":1352.95,"value":6295276.35,"ownership":{"direct":false,"nature":"By Stockbridge Fund, L.P."},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F9","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1352.5486 to $1352.95. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Fund, L.P. (\"SF\"). Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP, the registered investment adviser to SF. Stockbridge Associates LLC (\"SA\") is the general partner of SF. The Reporting Person is a managing member of each of BPH, BPSP, SP and SA. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SF. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":530100,"source":{"system":"sec-edgar","filing":"0000919574-25-001878","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":12,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001878/ownership.xml","form_type":"4"}},{"id":1214856,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-11T01:18:38.000Z","date":"2025-03-06","kind":"sale","planned":false,"acquired":false,"shares":347,"price":1352.95,"value":469473.65,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F9","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1352.5486 to $1352.95. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":98185,"source":{"system":"sec-edgar","filing":"0000919574-25-001878","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":11,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001878/ownership.xml","form_type":"4"}},{"id":1214855,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-11T01:18:38.000Z","date":"2025-03-06","kind":"sale","planned":false,"acquired":false,"shares":4653,"price":1349.8442,"value":6280825.0626,"ownership":{"direct":false,"nature":"By Stockbridge Fund, L.P."},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F8","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1349.5486 to $1350.5485. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Fund, L.P. (\"SF\"). Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP, the registered investment adviser to SF. Stockbridge Associates LLC (\"SA\") is the general partner of SF. The Reporting Person is a managing member of each of BPH, BPSP, SP and SA. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SF. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":534753,"source":{"system":"sec-edgar","filing":"0000919574-25-001878","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001878/ownership.xml","form_type":"4"}},{"id":1214854,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-11T01:18:38.000Z","date":"2025-03-06","kind":"sale","planned":false,"acquired":false,"shares":347,"price":1349.8442,"value":468395.9374,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F8","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1349.5486 to $1350.5485. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":98532,"source":{"system":"sec-edgar","filing":"0000919574-25-001878","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001878/ownership.xml","form_type":"4"}},{"id":1214853,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-11T01:18:38.000Z","date":"2025-03-06","kind":"sale","planned":false,"acquired":false,"shares":3722,"price":1347.8092,"value":5016545.8424,"ownership":{"direct":false,"nature":"By Stockbridge Fund, L.P."},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1347.5486 to $1348.5485. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Fund, L.P. (\"SF\"). Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP, the registered investment adviser to SF. Stockbridge Associates LLC (\"SA\") is the general partner of SF. The Reporting Person is a managing member of each of BPH, BPSP, SP and SA. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SF. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":539406,"source":{"system":"sec-edgar","filing":"0000919574-25-001878","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001878/ownership.xml","form_type":"4"}},{"id":1214852,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-11T01:18:38.000Z","date":"2025-03-06","kind":"sale","planned":false,"acquired":false,"shares":278,"price":1347.8092,"value":374690.9576,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1347.5486 to $1348.5485. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":98879,"source":{"system":"sec-edgar","filing":"0000919574-25-001878","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001878/ownership.xml","form_type":"4"}},{"id":1214851,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-11T01:18:38.000Z","date":"2025-03-06","kind":"sale","planned":false,"acquired":false,"shares":5583,"price":1346.8756,"value":7519606.4748,"ownership":{"direct":false,"nature":"By Stockbridge Fund, L.P."},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1346.5486 to $1347.5485. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Fund, L.P. (\"SF\"). Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP, the registered investment adviser to SF. Stockbridge Associates LLC (\"SA\") is the general partner of SF. The Reporting Person is a managing member of each of BPH, BPSP, SP and SA. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SF. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":543128,"source":{"system":"sec-edgar","filing":"0000919574-25-001878","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001878/ownership.xml","form_type":"4"}},{"id":1214850,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-11T01:18:38.000Z","date":"2025-03-06","kind":"sale","planned":false,"acquired":false,"shares":417,"price":1346.8756,"value":561647.1252,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1346.5486 to $1347.5485. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":99157,"source":{"system":"sec-edgar","filing":"0000919574-25-001878","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001878/ownership.xml","form_type":"4"}},{"id":1214849,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-11T01:18:38.000Z","date":"2025-03-06","kind":"sale","planned":false,"acquired":false,"shares":9306,"price":1343.6531,"value":12504035.7486,"ownership":{"direct":false,"nature":"By Stockbridge Fund, L.P."},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1343.5486 to $1344.5485. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Fund, L.P. (\"SF\"). Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP, the registered investment adviser to SF. Stockbridge Associates LLC (\"SA\") is the general partner of SF. The Reporting Person is a managing member of each of BPH, BPSP, SP and SA. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SF. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":548711,"source":{"system":"sec-edgar","filing":"0000919574-25-001878","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001878/ownership.xml","form_type":"4"}},{"id":1214848,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-11T01:18:38.000Z","date":"2025-03-06","kind":"sale","planned":false,"acquired":false,"shares":694,"price":1343.6531,"value":932495.2514,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1343.5486 to $1344.5485. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":99574,"source":{"system":"sec-edgar","filing":"0000919574-25-001878","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001878/ownership.xml","form_type":"4"}},{"id":1214847,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-11T01:18:38.000Z","date":"2025-03-06","kind":"sale","planned":false,"acquired":false,"shares":9306,"price":1340.9279,"value":12478675.0374,"ownership":{"direct":false,"nature":"By Stockbridge Fund, L.P."},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1340.5486 to $1341.5485. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Fund, L.P. (\"SF\"). Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP, the registered investment adviser to SF. Stockbridge Associates LLC (\"SA\") is the general partner of SF. The Reporting Person is a managing member of each of BPH, BPSP, SP and SA. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SF. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":558017,"source":{"system":"sec-edgar","filing":"0000919574-25-001878","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001878/ownership.xml","form_type":"4"}},{"id":1214846,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-11T01:18:38.000Z","date":"2025-03-06","kind":"sale","planned":false,"acquired":false,"shares":694,"price":1340.9279,"value":930603.9626,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1340.5486 to $1341.5485. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":100268,"source":{"system":"sec-edgar","filing":"0000919574-25-001878","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957425001878/ownership.xml","form_type":"4"}},{"id":1263494,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option","published_at":"2025-02-18T21:32:11.000Z","date":"2025-02-14","kind":"exercise","planned":false,"acquired":false,"shares":3650,"price":0,"value":0.0,"ownership":{"direct":true},"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":0,"derivative":{"exercise_price":97.84,"exercise_date":"2016-09-30","expiration_date":"2025-11-06","underlying":"Common Stock","underlying_shares":3650},"source":{"system":"sec-edgar","filing":"0000950170-25-022344","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":19,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000095017025022344/ownership.xml","form_type":"4"}},{"id":1263493,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-02-18T21:32:11.000Z","date":"2025-02-14","kind":"sale","planned":false,"acquired":false,"shares":72,"price":1336.7233,"value":96244.0776,"ownership":{"direct":true},"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 $1,336.00 - $1,336.84.  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":15539,"source":{"system":"sec-edgar","filing":"0000950170-25-022344","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":15,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000095017025022344/ownership.xml","form_type":"4"}},{"id":1263492,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-02-18T21:32:11.000Z","date":"2025-02-14","kind":"sale","planned":false,"acquired":false,"shares":7,"price":1335.09,"value":9345.63,"ownership":{"direct":true},"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 $1,335.00 - $1,335.21.  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":15611,"source":{"system":"sec-edgar","filing":"0000950170-25-022344","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":14,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000095017025022344/ownership.xml","form_type":"4"}},{"id":1263491,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-02-18T21:32:11.000Z","date":"2025-02-14","kind":"sale","planned":false,"acquired":false,"shares":579,"price":1331.0624,"value":770685.1296,"ownership":{"direct":true},"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 $1,330.69 - $1,331.23.  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":15618,"source":{"system":"sec-edgar","filing":"0000950170-25-022344","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":13,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000095017025022344/ownership.xml","form_type":"4"}},{"id":1263490,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-02-18T21:32:11.000Z","date":"2025-02-14","kind":"sale","planned":false,"acquired":false,"shares":1503,"price":1329.4212,"value":1998120.0636,"ownership":{"direct":true},"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 $1,329.34 - $1,330.00.  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":16197,"source":{"system":"sec-edgar","filing":"0000950170-25-022344","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":12,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000095017025022344/ownership.xml","form_type":"4"}},{"id":1263489,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-02-18T21:32:11.000Z","date":"2025-02-14","kind":"sale","planned":false,"acquired":false,"shares":72,"price":1325,"value":95400.0,"ownership":{"direct":true},"balance_after":17700,"source":{"system":"sec-edgar","filing":"0000950170-25-022344","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":11,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000095017025022344/ownership.xml","form_type":"4"}},{"id":1263488,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-02-18T21:32:11.000Z","date":"2025-02-14","kind":"sale","planned":false,"acquired":false,"shares":200,"price":1323.76,"value":264752.0,"ownership":{"direct":true},"balance_after":17772,"source":{"system":"sec-edgar","filing":"0000950170-25-022344","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000095017025022344/ownership.xml","form_type":"4"}},{"id":1263487,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-02-18T21:32:11.000Z","date":"2025-02-14","kind":"sale","planned":false,"acquired":false,"shares":100,"price":1322.46,"value":132246.0,"ownership":{"direct":true},"balance_after":17972,"source":{"system":"sec-edgar","filing":"0000950170-25-022344","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000095017025022344/ownership.xml","form_type":"4"}},{"id":1263486,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-02-18T21:32:11.000Z","date":"2025-02-14","kind":"sale","planned":false,"acquired":false,"shares":201,"price":1318.2583,"value":264969.9183,"ownership":{"direct":true},"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 $1,317.4150 - $1,318.2750.  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":18072,"source":{"system":"sec-edgar","filing":"0000950170-25-022344","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000095017025022344/ownership.xml","form_type":"4"}},{"id":1263485,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-02-18T21:32:11.000Z","date":"2025-02-14","kind":"sale","planned":false,"acquired":false,"shares":80,"price":1313.22,"value":105057.6,"ownership":{"direct":true},"balance_after":18273,"source":{"system":"sec-edgar","filing":"0000950170-25-022344","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000095017025022344/ownership.xml","form_type":"4"}},{"id":1263484,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-02-18T21:32:11.000Z","date":"2025-02-14","kind":"sale","planned":false,"acquired":false,"shares":1,"price":1308.97,"value":1308.97,"ownership":{"direct":true},"balance_after":18353,"source":{"system":"sec-edgar","filing":"0000950170-25-022344","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000095017025022344/ownership.xml","form_type":"4"}},{"id":1263483,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-02-18T21:32:11.000Z","date":"2025-02-14","kind":"sale","planned":false,"acquired":false,"shares":100,"price":1306.6148,"value":130661.48,"ownership":{"direct":true},"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 $1,306.4950 - $1,306.7150.  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":18354,"source":{"system":"sec-edgar","filing":"0000950170-25-022344","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000095017025022344/ownership.xml","form_type":"4"}},{"id":1263482,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-02-18T21:32:11.000Z","date":"2025-02-14","kind":"sale","planned":false,"acquired":false,"shares":300,"price":1302.77,"value":390831.0,"ownership":{"direct":true},"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 $1,302.71 - $1,302.80.  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":18454,"source":{"system":"sec-edgar","filing":"0000950170-25-022344","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000095017025022344/ownership.xml","form_type":"4"}},{"id":1263481,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-02-18T21:32:11.000Z","date":"2025-02-14","kind":"sale","planned":false,"acquired":false,"shares":402,"price":1302.1999,"value":523484.3598,"ownership":{"direct":true},"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 $1,301.71 - $1,302.69.  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":18754,"source":{"system":"sec-edgar","filing":"0000950170-25-022344","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000095017025022344/ownership.xml","form_type":"4"}},{"id":1263480,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-02-18T21:32:11.000Z","date":"2025-02-14","kind":"sale","planned":false,"acquired":false,"shares":33,"price":1300.05,"value":42901.65,"ownership":{"direct":true},"balance_after":19156,"source":{"system":"sec-edgar","filing":"0000950170-25-022344","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000095017025022344/ownership.xml","form_type":"4"}},{"id":1263479,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-02-18T21:32:11.000Z","date":"2025-02-14","kind":"exercise","planned":false,"acquired":true,"shares":3650,"price":97.84,"value":357116.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The exercise price has been adjusted for dividends declared since August 1, 2022."}],"balance_after":19189,"source":{"system":"sec-edgar","filing":"0000950170-25-022344","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000095017025022344/ownership.xml","form_type":"4"}},{"id":1330651,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-12-16T21:57:06.000Z","date":"2024-12-12","kind":"sale","planned":false,"acquired":false,"shares":8000,"price":1250.9887,"value":10007909.6,"ownership":{"direct":false,"nature":"By Stockbridge Fund, L.P."},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1250.513 to $1250.9958. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Fund, L.P. (\"SF\"). Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP, the registered investment adviser to SF. Stockbridge Associates LLC (\"SA\") is the general partner of SF. The Reporting Person is a managing member of each of BPH, BPSP, SP and SA. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SF. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":567323,"source":{"system":"sec-edgar","filing":"0000919574-24-007157","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957424007157/ownership.xml","form_type":"4"}},{"id":1330650,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-12-16T21:57:06.000Z","date":"2024-12-12","kind":"sale","planned":false,"acquired":false,"shares":9300,"price":1250.1481,"value":11626377.33,"ownership":{"direct":false,"nature":"By Stockbridge Fund, L.P."},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1249.513 to $1250.5129. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Fund, L.P. (\"SF\"). Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP, the registered investment adviser to SF. Stockbridge Associates LLC (\"SA\") is the general partner of SF. The Reporting Person is a managing member of each of BPH, BPSP, SP and SA. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SF. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":575323,"source":{"system":"sec-edgar","filing":"0000919574-24-007157","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957424007157/ownership.xml","form_type":"4"}},{"id":1330649,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-12-16T21:57:06.000Z","date":"2024-12-12","kind":"sale","planned":false,"acquired":false,"shares":8700,"price":1248.0142,"value":10857723.54,"ownership":{"direct":false,"nature":"By Stockbridge Fund, L.P."},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1247.513 to $1248.5129. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Fund, L.P. (\"SF\"). Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP, the registered investment adviser to SF. Stockbridge Associates LLC (\"SA\") is the general partner of SF. The Reporting Person is a managing member of each of BPH, BPSP, SP and SA. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SF. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":584623,"source":{"system":"sec-edgar","filing":"0000919574-24-007157","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957424007157/ownership.xml","form_type":"4"}},{"id":1330648,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-12-16T21:57:06.000Z","date":"2024-12-12","kind":"sale","planned":false,"acquired":false,"shares":12053,"price":1246.8136,"value":15027844.3208,"ownership":{"direct":false,"nature":"By Stockbridge Fund, L.P."},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1246.513 to $1247.5129. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Fund, L.P. (\"SF\"). Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP, the registered investment adviser to SF. Stockbridge Associates LLC (\"SA\") is the general partner of SF. The Reporting Person is a managing member of each of BPH, BPSP, SP and SA. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SF. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":593323,"source":{"system":"sec-edgar","filing":"0000919574-24-007157","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957424007157/ownership.xml","form_type":"4"}},{"id":1357058,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option","published_at":"2024-11-20T21:34:46.000Z","date":"2024-10-31","kind":"grant","planned":false,"acquired":true,"shares":450,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Vest based on the achievement of annual per share operating performance targets between fiscal 2025 and fiscal 2029."}],"balance_after":450,"derivative":{"exercise_price":1302.3,"exercise_date":"2025-09-30","expiration_date":"2034-10-31","underlying":"Common Stock","underlying_shares":450},"source":{"system":"sec-edgar","filing":"0000950170-24-129348","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000095017024129348/ownership.xml","form_type":"4"}},{"id":1398397,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-09-27T22:51:57.000Z","date":"2024-09-25","kind":"grant","planned":false,"acquired":true,"shares":42,"price":1367.76,"value":57445.92,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Receipt of stock in lieu of payment of semi-annual director fee, based on fair market value in accordance with the Director Share Plan."}],"balance_after":15539,"source":{"system":"sec-edgar","filing":"0000950170-24-110132","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000095017024110132/ownership.xml","form_type":"4"}},{"id":1408486,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-09-12T20:35:14.000Z","date":"2024-09-11","kind":"other","planned":false,"acquired":false,"shares":423,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F4","text":"Represents Common Stock of the Issuer transferred to certain members of Berkshire Partners LLC."}],"balance_after":15497,"source":{"system":"sec-edgar","filing":"0000919574-24-005487","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957424005487/ownership.xml","form_type":"4"}},{"id":1481895,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-06-13T01:33:37.000Z","date":"2024-06-12","kind":"sale","planned":false,"acquired":false,"shares":1531,"price":1325.8725,"value":2029910.7975,"ownership":{"direct":false,"nature":"By Stockbridge Fund, L.P."},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F9","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1325.8721 to $1325.8725. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Fund, L.P. (\"SF\"). Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP, the registered investment adviser to SF. Stockbridge Associates LLC (\"SA\") is the general partner of SF. The Reporting Person is a managing member of each of BPH, BPSP, SP and SA. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SF. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":605376,"source":{"system":"sec-edgar","filing":"0000919574-24-003630","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":12,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957424003630/ownership.xml","form_type":"4"}},{"id":1481894,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-06-13T01:33:37.000Z","date":"2024-06-12","kind":"sale","planned":false,"acquired":false,"shares":882,"price":1325.8725,"value":1169419.545,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F9","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1325.8721 to $1325.8725. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":100962,"source":{"system":"sec-edgar","filing":"0000919574-24-003630","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":11,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957424003630/ownership.xml","form_type":"4"}},{"id":1481893,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-06-13T01:33:37.000Z","date":"2024-06-12","kind":"sale","planned":false,"acquired":false,"shares":1458,"price":1321.2506,"value":1926383.3748,"ownership":{"direct":false,"nature":"By Stockbridge Fund, L.P."},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F8","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1320.8721 to $1321.872. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Stockbridge Fund, L.P. (\"SF\"). Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP, the registered investment adviser to SF. Stockbridge Associates LLC (\"SA\") is the general partner of SF. The Reporting Person is a managing member of each of BPH, BPSP, SP and SA. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SF. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":606907,"source":{"system":"sec-edgar","filing":"0000919574-24-003630","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957424003630/ownership.xml","form_type":"4"}},{"id":1481892,"issuer":{"id":2991,"kind":"organization","name":"TransDigm Group INC","symbol":"TDG"},"owners":[{"id":64244,"kind":"person","name":"SMALL ROBERT J","position":1,"cik":"0001234544","reported_name":"SMALL ROBERT J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-06-13T01:33:37.000Z","date":"2024-06-12","kind":"sale","planned":false,"acquired":false,"shares":839,"price":1321.2506,"value":1108529.2534,"ownership":{"direct":false,"nature":"By Stockbridge Partners LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F8","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $1320.8721 to $1321.872. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held by Stockbridge Partners LLC (\"SP\") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":101844,"source":{"system":"sec-edgar","filing":"0000919574-24-003630","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1260221/000091957424003630/ownership.xml","form_type":"4"}}],"next_cursor":"2024-06-13T01:33:37.000000Z,1481892"}