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person · Reporting owner

SMALL ROBERT J

Disclosed activity across 1 company

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64244
SEC CIK
0001234544

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
TransDigm Group INCTDG · Entity 2991DirectorSeptember 18, 2026September 23, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

TransDigm Group INC

Report date September 18, 2026 · Filed September 23, 2026 · Amendment

Amendment: balances below belong to this corrected disclosure, not necessarily a complete replacement of earlier positions.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect5,677 Reported balance After 2026-09-18 transaction · row 1 Amendment: may correct only part of an earlier disclosure.
1 source row

Row 1 · 2026-09-18 · Other · Acquired 0 · Balance 5,677

Common StockSEC Table I · non-derivativeIndirectBy Family Trusts60,246 Reported balance Holding disclosure · report date 2026-09-18 · row 2 Amendment: may correct only part of an earlier disclosure.
1 source row

Row 2 · Balance 60,246

Common StockSEC Table I · non-derivativeIndirectBy Stockbridge Fund, L.P.366,142 Reported balance Holding disclosure · report date 2026-09-18 · row 3 Amendment: may correct only part of an earlier disclosure.
1 source row

Row 3 · Balance 366,142

F1: Amended to correct the carry-over balance. The reporting person beneficially owns 366,142 shares held by Stockbridge Fund LP, not 366,141 as previously reported.

Common StockSEC Table I · non-derivativeIndirectBy Stockbridge Partners LLC68,139 Reported balance Holding disclosure · report date 2026-09-18 · row 4 Amendment: may correct only part of an earlier disclosure.
1 source row

Row 4 · Balance 68,139

Filing footnotes · ownership attribution and instrument terms

F1: Amended to correct the carry-over balance. The reporting person beneficially owns 366,142 shares held by Stockbridge Fund LP, not 366,141 as previously reported.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
March 10, 2025 Filed Mar 11, 2025 01:40 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 611 $1,335.62 $816,060.77
Disclosure

SEC source: 0000919574-25-001879 · ownership.xml · nonDerivative · entry 1

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Stockbridge Partners LLC

Disclosed balance after: 96,273

F3 · price: 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.

F1 · ownership.nature: 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.

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March 07, 2025 Filed Mar 11, 2025 01:18 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 3,739 $1,341.09 $5,014,340.00
Disclosure

SEC source: 0000919574-25-001878 · ownership.xml · nonDerivative · entry 22

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Stockbridge Fund, L.P.

Disclosed balance after: 511,401

F14 · price: 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.

F2 · ownership.nature: 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.

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March 07, 2025 Filed Mar 11, 2025 01:18 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 261 $1,341.09 $350,024.80
Disclosure

SEC source: 0000919574-25-001878 · ownership.xml · nonDerivative · entry 21

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Stockbridge Partners LLC

Disclosed balance after: 96,884

F14 · price: 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.

F1 · ownership.nature: 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.

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March 07, 2025 Filed Mar 11, 2025 01:18 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 2,805 $1,339.94 $3,758,521.32
Disclosure

SEC source: 0000919574-25-001878 · ownership.xml · nonDerivative · entry 20

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Stockbridge Fund, L.P.

Disclosed balance after: 515,140

F13 · price: 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.

F2 · ownership.nature: 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.

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March 07, 2025 Filed Mar 11, 2025 01:18 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 195 $1,339.94 $261,287.58
Disclosure

SEC source: 0000919574-25-001878 · ownership.xml · nonDerivative · entry 19

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Stockbridge Partners LLC

Disclosed balance after: 97,145

F13 · price: 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.

F1 · ownership.nature: 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.

Read SEC document
March 07, 2025 Filed Mar 11, 2025 01:18 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 2,805 $1,338.90 $3,755,618.71
Disclosure

SEC source: 0000919574-25-001878 · ownership.xml · nonDerivative · entry 18

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Stockbridge Fund, L.P.

Disclosed balance after: 517,945

F12 · price: 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.

F2 · ownership.nature: 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.

Read SEC document
March 07, 2025 Filed Mar 11, 2025 01:18 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 195 $1,338.90 $261,085.79
Disclosure

SEC source: 0000919574-25-001878 · ownership.xml · nonDerivative · entry 17

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Stockbridge Partners LLC

Disclosed balance after: 97,340

F12 · price: 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.

F1 · ownership.nature: 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.

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March 07, 2025 Filed Mar 11, 2025 01:18 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 1,870 $1,338.27 $2,502,567.89
Disclosure

SEC source: 0000919574-25-001878 · ownership.xml · nonDerivative · entry 16

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Stockbridge Fund, L.P.

Disclosed balance after: 520,750

F11 · price: 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.

F2 · ownership.nature: 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.

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March 07, 2025 Filed Mar 11, 2025 01:18 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 130 $1,338.27 $173,975.31
Disclosure

SEC source: 0000919574-25-001878 · ownership.xml · nonDerivative · entry 15

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Stockbridge Partners LLC

Disclosed balance after: 97,535

F11 · price: 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.

F1 · ownership.nature: 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.

Read SEC document
March 07, 2025 Filed Mar 11, 2025 01:18 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 7,480 $1,336.99 $10,000,677.72
Disclosure

SEC source: 0000919574-25-001878 · ownership.xml · nonDerivative · entry 14

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Stockbridge Fund, L.P.

Disclosed balance after: 522,620

F10 · price: 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.

F2 · ownership.nature: 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.

Read SEC document
March 07, 2025 Filed Mar 11, 2025 01:18 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 520 $1,336.99 $695,234.28
Disclosure

SEC source: 0000919574-25-001878 · ownership.xml · nonDerivative · entry 13

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Stockbridge Partners LLC

Disclosed balance after: 97,665

F10 · price: 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.

F1 · ownership.nature: 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.

Read SEC document
March 06, 2025 Filed Mar 11, 2025 01:18 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 4,653 $1,352.95 $6,295,276.35
Disclosure

SEC source: 0000919574-25-001878 · ownership.xml · nonDerivative · entry 12

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Stockbridge Fund, L.P.

Disclosed balance after: 530,100

F9 · price: 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.

F2 · ownership.nature: 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.

Read SEC document
March 06, 2025 Filed Mar 11, 2025 01:18 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 347 $1,352.95 $469,473.65
Disclosure

SEC source: 0000919574-25-001878 · ownership.xml · nonDerivative · entry 11

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Stockbridge Partners LLC

Disclosed balance after: 98,185

F9 · price: 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.

F1 · ownership.nature: 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.

Read SEC document
March 06, 2025 Filed Mar 11, 2025 01:18 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 4,653 $1,349.84 $6,280,825.06
Disclosure

SEC source: 0000919574-25-001878 · ownership.xml · nonDerivative · entry 10

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Stockbridge Fund, L.P.

Disclosed balance after: 534,753

F8 · price: 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.

F2 · ownership.nature: 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.

Read SEC document
March 06, 2025 Filed Mar 11, 2025 01:18 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 347 $1,349.84 $468,395.94
Disclosure

SEC source: 0000919574-25-001878 · ownership.xml · nonDerivative · entry 9

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Stockbridge Partners LLC

Disclosed balance after: 98,532

F8 · price: 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.

F1 · ownership.nature: 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.

Read SEC document
March 06, 2025 Filed Mar 11, 2025 01:18 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 3,722 $1,347.81 $5,016,545.84
Disclosure

SEC source: 0000919574-25-001878 · ownership.xml · nonDerivative · entry 8

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Stockbridge Fund, L.P.

Disclosed balance after: 539,406

F7 · price: 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.

F2 · ownership.nature: 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.

Read SEC document
March 06, 2025 Filed Mar 11, 2025 01:18 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 278 $1,347.81 $374,690.96
Disclosure

SEC source: 0000919574-25-001878 · ownership.xml · nonDerivative · entry 7

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Stockbridge Partners LLC

Disclosed balance after: 98,879

F7 · price: 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.

F1 · ownership.nature: 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.

Read SEC document
March 06, 2025 Filed Mar 11, 2025 01:18 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 5,583 $1,346.88 $7,519,606.47
Disclosure

SEC source: 0000919574-25-001878 · ownership.xml · nonDerivative · entry 6

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Stockbridge Fund, L.P.

Disclosed balance after: 543,128

F6 · price: 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.

F2 · ownership.nature: 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.

Read SEC document
March 06, 2025 Filed Mar 11, 2025 01:18 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 417 $1,346.88 $561,647.13
Disclosure

SEC source: 0000919574-25-001878 · ownership.xml · nonDerivative · entry 5

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Stockbridge Partners LLC

Disclosed balance after: 99,157

F6 · price: 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.

F1 · ownership.nature: 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.

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March 06, 2025 Filed Mar 11, 2025 01:18 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 9,306 $1,343.65 $12,504,035.75
Disclosure

SEC source: 0000919574-25-001878 · ownership.xml · nonDerivative · entry 4

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Stockbridge Fund, L.P.

Disclosed balance after: 548,711

F5 · price: 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.

F2 · ownership.nature: 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.

Read SEC document
March 06, 2025 Filed Mar 11, 2025 01:18 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 694 $1,343.65 $932,495.25
Disclosure

SEC source: 0000919574-25-001878 · ownership.xml · nonDerivative · entry 3

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Stockbridge Partners LLC

Disclosed balance after: 99,574

F5 · price: 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.

F1 · ownership.nature: 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.

Read SEC document
March 06, 2025 Filed Mar 11, 2025 01:18 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 9,306 $1,340.93 $12,478,675.04
Disclosure

SEC source: 0000919574-25-001878 · ownership.xml · nonDerivative · entry 2

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Stockbridge Fund, L.P.

Disclosed balance after: 558,017

F4 · price: 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.

F2 · ownership.nature: 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.

Read SEC document
March 06, 2025 Filed Mar 11, 2025 01:18 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 694 $1,340.93 $930,603.96
Disclosure

SEC source: 0000919574-25-001878 · ownership.xml · nonDerivative · entry 1

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Stockbridge Partners LLC

Disclosed balance after: 100,268

F4 · price: 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.

F1 · ownership.nature: 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.

Read SEC document
February 14, 2025 Filed Feb 18, 2025 21:32 UTC TransDigm Group INC TDG · Entity 2991 Exercise / conversionStock Option · Derivative 3,650 $0.00 Strike: $97.84 $0.00
Disclosure

SEC source: 0000950170-25-022344 · ownership.xml · derivative · entry 19

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 3,650 shares

Expires 2025-11-06

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: The exercise price has been adjusted for dividends declared since August 1, 2022.

Read SEC document
February 14, 2025 Filed Feb 18, 2025 21:32 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 72 $1,336.72 $96,244.08
Disclosure

SEC source: 0000950170-25-022344 · ownership.xml · nonDerivative · entry 15

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,539

F9 · price: 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.

Read SEC document
February 14, 2025 Filed Feb 18, 2025 21:32 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 7 $1,335.09 $9,345.63
Disclosure

SEC source: 0000950170-25-022344 · ownership.xml · nonDerivative · entry 14

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,611

F8 · price: 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.

Read SEC document
February 14, 2025 Filed Feb 18, 2025 21:32 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 579 $1,331.06 $770,685.13
Disclosure

SEC source: 0000950170-25-022344 · ownership.xml · nonDerivative · entry 13

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,618

F7 · price: 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.

Read SEC document
February 14, 2025 Filed Feb 18, 2025 21:32 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 1,503 $1,329.42 $1,998,120.06
Disclosure

SEC source: 0000950170-25-022344 · ownership.xml · nonDerivative · entry 12

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,197

F6 · price: 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.

Read SEC document
February 14, 2025 Filed Feb 18, 2025 21:32 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 72 $1,325.00 $95,400.00
Disclosure

SEC source: 0000950170-25-022344 · ownership.xml · nonDerivative · entry 11

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,700

Read SEC document
February 14, 2025 Filed Feb 18, 2025 21:32 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 200 $1,323.76 $264,752.00
Disclosure

SEC source: 0000950170-25-022344 · ownership.xml · nonDerivative · entry 10

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,772

Read SEC document
February 14, 2025 Filed Feb 18, 2025 21:32 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 100 $1,322.46 $132,246.00
Disclosure

SEC source: 0000950170-25-022344 · ownership.xml · nonDerivative · entry 9

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,972

Read SEC document
February 14, 2025 Filed Feb 18, 2025 21:32 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 201 $1,318.26 $264,969.92
Disclosure

SEC source: 0000950170-25-022344 · ownership.xml · nonDerivative · entry 8

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,072

F5 · price: 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.

Read SEC document
February 14, 2025 Filed Feb 18, 2025 21:32 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 80 $1,313.22 $105,057.60
Disclosure

SEC source: 0000950170-25-022344 · ownership.xml · nonDerivative · entry 7

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,273

Read SEC document
February 14, 2025 Filed Feb 18, 2025 21:32 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 1 $1,308.97 $1,308.97
Disclosure

SEC source: 0000950170-25-022344 · ownership.xml · nonDerivative · entry 6

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,353

Read SEC document
February 14, 2025 Filed Feb 18, 2025 21:32 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 100 $1,306.61 $130,661.48
Disclosure

SEC source: 0000950170-25-022344 · ownership.xml · nonDerivative · entry 5

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,354

F4 · price: 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.

Read SEC document
February 14, 2025 Filed Feb 18, 2025 21:32 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 300 $1,302.77 $390,831.00
Disclosure

SEC source: 0000950170-25-022344 · ownership.xml · nonDerivative · entry 4

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,454

F3 · price: 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.

Read SEC document
February 14, 2025 Filed Feb 18, 2025 21:32 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 402 $1,302.20 $523,484.36
Disclosure

SEC source: 0000950170-25-022344 · ownership.xml · nonDerivative · entry 3

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,754

F2 · price: 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.

Read SEC document
February 14, 2025 Filed Feb 18, 2025 21:32 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 33 $1,300.05 $42,901.65
Disclosure

SEC source: 0000950170-25-022344 · ownership.xml · nonDerivative · entry 2

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,156

Read SEC document
February 14, 2025 Filed Feb 18, 2025 21:32 UTC TransDigm Group INC TDG · Entity 2991 Exercise / conversionCommon Stock 3,650 $97.84 $357,116.00
Disclosure

SEC source: 0000950170-25-022344 · ownership.xml · nonDerivative · entry 1

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,189

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: The exercise price has been adjusted for dividends declared since August 1, 2022.

Read SEC document
December 12, 2024 Filed Dec 16, 2024 21:57 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 8,000 $1,250.99 $10,007,909.60
Disclosure

SEC source: 0000919574-24-007157 · ownership.xml · nonDerivative · entry 5

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Stockbridge Fund, L.P.

Disclosed balance after: 567,323

F7 · price: 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.

F2 · ownership.nature: 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.

Read SEC document
December 12, 2024 Filed Dec 16, 2024 21:57 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 9,300 $1,250.15 $11,626,377.33
Disclosure

SEC source: 0000919574-24-007157 · ownership.xml · nonDerivative · entry 4

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Stockbridge Fund, L.P.

Disclosed balance after: 575,323

F6 · price: 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.

F2 · ownership.nature: 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.

Read SEC document
December 12, 2024 Filed Dec 16, 2024 21:57 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 8,700 $1,248.01 $10,857,723.54
Disclosure

SEC source: 0000919574-24-007157 · ownership.xml · nonDerivative · entry 3

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Stockbridge Fund, L.P.

Disclosed balance after: 584,623

F5 · price: 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.

F2 · ownership.nature: 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.

Read SEC document
December 12, 2024 Filed Dec 16, 2024 21:57 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 12,053 $1,246.81 $15,027,844.32
Disclosure

SEC source: 0000919574-24-007157 · ownership.xml · nonDerivative · entry 2

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Stockbridge Fund, L.P.

Disclosed balance after: 593,323

F4 · price: 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.

F2 · ownership.nature: 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.

Read SEC document
October 31, 2024 Filed Nov 20, 2024 21:34 UTC TransDigm Group INC TDG · Entity 2991 GrantStock Option · Derivative 450 $0.00 Strike: $1,302.30 $0.00
Disclosure

SEC source: 0000950170-24-129348 · ownership.xml · derivative · entry 1

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 450

Underlying: Common Stock · 450 shares

Expires 2034-10-31

F1 · derivative.exercise_date: Vest based on the achievement of annual per share operating performance targets between fiscal 2025 and fiscal 2029.

Read SEC document
September 25, 2024 Filed Sep 27, 2024 22:51 UTC TransDigm Group INC TDG · Entity 2991 GrantCommon Stock 42 $1,367.76 $57,445.92
Disclosure

SEC source: 0000950170-24-110132 · ownership.xml · nonDerivative · entry 1

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,539

F1 · shares: Receipt of stock in lieu of payment of semi-annual director fee, based on fair market value in accordance with the Director Share Plan.

Read SEC document
September 11, 2024 Filed Sep 12, 2024 20:35 UTC TransDigm Group INC TDG · Entity 2991 OtherCommon Stock 423 $0.00 $0.00
Disclosure

SEC source: 0000919574-24-005487 · ownership.xml · nonDerivative · entry 4

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,497

F4 · kind: Represents Common Stock of the Issuer transferred to certain members of Berkshire Partners LLC.

Read SEC document
June 12, 2024 Filed Jun 13, 2024 01:33 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 1,531 $1,325.87 $2,029,910.80
Disclosure

SEC source: 0000919574-24-003630 · ownership.xml · nonDerivative · entry 12

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Stockbridge Fund, L.P.

Disclosed balance after: 605,376

F9 · price: 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.

F2 · ownership.nature: 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.

Read SEC document
June 12, 2024 Filed Jun 13, 2024 01:33 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 882 $1,325.87 $1,169,419.55
Disclosure

SEC source: 0000919574-24-003630 · ownership.xml · nonDerivative · entry 11

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Stockbridge Partners LLC

Disclosed balance after: 100,962

F9 · price: 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.

F1 · ownership.nature: 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.

Read SEC document
June 12, 2024 Filed Jun 13, 2024 01:33 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 1,458 $1,321.25 $1,926,383.37
Disclosure

SEC source: 0000919574-24-003630 · ownership.xml · nonDerivative · entry 10

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Stockbridge Fund, L.P.

Disclosed balance after: 606,907

F8 · price: 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.

F2 · ownership.nature: 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.

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June 12, 2024 Filed Jun 13, 2024 01:33 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 839 $1,321.25 $1,108,529.25
Disclosure

SEC source: 0000919574-24-003630 · ownership.xml · nonDerivative · entry 9

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Stockbridge Partners LLC

Disclosed balance after: 101,844

F8 · price: 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.

F1 · ownership.nature: 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.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.