TapewireFind a company

person · Reporting owner

SMALL ROBERT J

Disclosed activity across 1 company

Tapewire entity
64244
SEC CIK
0001234544

Export transaction history ↓

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

JSON API
Reset

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, 2020 Filed Mar 13, 2020 01:07 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 58 $467.02 $27,087.16
Disclosure

SEC source: 0000919574-20-002397 · ownership.xml · nonDerivative · entry 2

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 1,406,409

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $467.02 to $468.0199. 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 purchased at each separate price within the ranges set forth in this footnote.

F2 · ownership.nature: Represents shares held directly or indirectly by Berkshire Fund VIII, L.P. ("VIII"), Berkshire Fund VIII-A, L.P. ("VIII-A"), Berkshire Fund IX, L.P. ("IX"), Berkshire Fund IX-A, L.P. ("IX-A"), Berkshire Investors III LLC ("Investors III"), Berkshire Investors IV LLC ("Investors IV"), Stockbridge Fund, L.P. ("SF") and Stockbridge Absolute Return Fund, L.P. ("SARF") (collectively, the "Berkshire Entities"). Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of each of Berkshire Partners LLC, the registered investment adviser to VIII, VIII-A, IX, IX-A, Investors III and Investors IV ("BP"), and SP, the registered investment adviser to SF and SARF. Eighth Berkshire Associates LLC ("8BA") is the general partner of each of VIII and VIII-A. Ninth Berkshire Associates LLC ("9BA") is the general partner of each of IX and IX-A.

F3 · ownership.nature: [Continued from Footnote 2] Stockbridge Associates LLC ("SA") is the general partner of each of SF and SARF. The Reporting Person is a managing member of each of BPH, BPSP, BP, SP, 8BA, 9BA, SA, Investors III and Investors IV. 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 the Berkshire Entities. 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 10, 2020 Filed Mar 13, 2020 01:07 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 7 $467.02 $3,269.14
Disclosure

SEC source: 0000919574-20-002397 · ownership.xml · nonDerivative · entry 1

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Stockbridge Partners LLC

Disclosed balance after: 147,282

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $467.02 to $468.0199. 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 purchased at each separate price within the ranges 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
November 22, 2019 Filed Nov 26, 2019 23:11 UTC TransDigm Group INC TDG · Entity 2991 OtherCommon Stock 16,507 $0.00 $0.00
Disclosure

SEC source: 0000919574-19-007504 · ownership.xml · nonDerivative · entry 3

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 58,683

F2 · kind: Represents Common Stock received as part of the distribution by the Berkshire Entities referred to in note (1) above.

F8 · ownership.direct: Represents shares of Common Stock held directly by the Reporting Person. The amount of securities in column 5 reflects transfers between the Reporting Person and certain family trusts referred to herein that do not otherwise change the Reporting Person's pecuniary interests in the Common Stock.

Read SEC document
November 22, 2019 Filed Nov 26, 2019 23:11 UTC TransDigm Group INC TDG · Entity 2991 OtherCommon Stock 2,340 $0.00 $0.00
Disclosure

SEC source: 0000919574-19-007504 · ownership.xml · nonDerivative · entry 2

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Family Trusts

Disclosed balance after: 20,301

F2 · kind: Represents Common Stock received as part of the distribution by the Berkshire Entities referred to in note (1) above.

F5 · ownership.nature: Represents shares of Common Stock beneficially owned by certain family trusts. The Reporting Person is a trustee and the Reporting Person's immediate family members are beneficiaries of such family trusts. The amount of securities in column 5 reflects transfers between such family trusts and the Reporting Person that do not otherwise change the Reporting Person's pecuniary interests in the Common Stock.

Read SEC document
November 22, 2019 Filed Nov 26, 2019 23:11 UTC TransDigm Group INC TDG · Entity 2991 OtherCommon Stock 811,932 $0.00 $0.00
Disclosure

SEC source: 0000919574-19-007504 · ownership.xml · nonDerivative · entry 1

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 1,406,351

F1 · kind: Represents Common Stock of the Issuer distributed by the Berkshire Entities (as defined below) to certain of their 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.

F3 · ownership.nature: Represents shares held directly or indirectly by Berkshire Fund VIII, L.P. ("VIII"), Berkshire Fund VIII-A, L.P. ("VIII-A"), Berkshire Investors III LLC ("Investors III"), Berkshire Investors IV LLC ("Investors IV"), Stockbridge Fund, L.P. ("SF") and Stockbridge Absolute Return Fund, L.P. ("SARF") (collectively, the "Berkshire Entities"). Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of each of Berkshire Partners LLC, the registered investment adviser to VIII, VIII-A, Investors III and Investors IV ("BP"), and SP, the registered investment adviser to SF and SARF. Eighth Berkshire Associates LLC ("8BA") is the general partner of each of VIII and VIII-A.

F4 · ownership.nature: [Continued from Footnote 3] Stockbridge Associates LLC ("SA") is the general partner of each of SF and SARF. The Reporting Person is a managing member of each of BPH, BPSP, BP, SP, 8BA, SA, Investors III and Investors IV. 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 the Berkshire Entities. 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
November 15, 2019 Filed Nov 18, 2019 22:43 UTC TransDigm Group INC TDG · Entity 2991 GrantStock Option · Derivative 3,000 $0.00 Strike: $559.78 $0.00
Disclosure

SEC source: 0001209191-19-057009 · doc4.xml · derivative · entry 1

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,000

Underlying: Common Stock · 3,000 shares

Expires 2029-11-15

F1 · derivative.underlying_shares: Vest based on the achievement of annual per share operating performance targets between fiscal 2020 and fiscal 2024.

Read SEC document
August 27, 2019 Filed Aug 29, 2019 21:27 UTC TransDigm Group INC TDG · Entity 2991 OtherCommon Stock 14,272 $0.00 $0.00
Disclosure

SEC source: 0000919574-19-005610 · ownership.xml · nonDerivative · entry 3

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 51,447

F2 · kind: Represents Common Stock received as part of the distribution by the Berkshire Entities referred to in note (1) above.

Read SEC document
August 27, 2019 Filed Aug 29, 2019 21:27 UTC TransDigm Group INC TDG · Entity 2991 OtherCommon Stock 2,617 $0.00 $0.00
Disclosure

SEC source: 0000919574-19-005610 · ownership.xml · nonDerivative · entry 2

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Family Trusts

Disclosed balance after: 8,730

F2 · kind: Represents Common Stock received as part of the distribution by the Berkshire Entities referred to in note (1) above.

F5 · ownership.nature: Represents shares of Common Stock beneficially owned by certain family trusts. The Reporting Person is a trustee and the Reporting Person's immediate family members are beneficiaries of such family trusts.

Read SEC document
August 27, 2019 Filed Aug 29, 2019 21:27 UTC TransDigm Group INC TDG · Entity 2991 OtherCommon Stock 827,934 $0.00 $0.00
Disclosure

SEC source: 0000919574-19-005610 · ownership.xml · nonDerivative · entry 1

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 2,218,283

F1 · kind: Represents Common Stock of the Issuer distributed by the Berkshire Entities (as defined below) to certain of their 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.

F3 · ownership.nature: Represents shares held directly or indirectly by Berkshire Fund VII, L.P. ("VII"), Berkshire Fund VII-A, L.P. ("VII-A"), Berkshire Fund VIII, L.P. ("VIII"), Berkshire Fund VIII-A, L.P. ("VIII-A"), Berkshire Investors LLC ("Investors"), Berkshire Investors III LLC ("Investors III"), Berkshire Investors IV LLC ("Investors IV"), Stockbridge Fund, L.P. ("SF") and Stockbridge Absolute Return Fund, L.P. ("SARF") (collectively, the "Berkshire Entities"). Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of each of Berkshire Partners LLC, the registered investment adviser to VII, VII-A, VIII, VIII-A, Investors, Investors III and Investors IV ("BP"), and SP, the registered investment adviser to SF and SARF. Seventh Berkshire Associates LLC ("7BA") is the general partner of each of VII and VII-A. Eighth Berkshire Associates LLC ("8BA") is the general partner of each of VIII and VIII-A.

F4 · ownership.nature: [Continued from Footnote 3] Stockbridge Associates LLC ("SA") is the general partner of each of SF and SARF. The Reporting Person is a managing member of each of BPH, BPSP, BP, SP, 8BA, 7BA, SA, Investors, Investors III and Investors IV. 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 the Berkshire Entities. 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
August 22, 2019 Filed Aug 22, 2019 23:50 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 89 $534.04 $47,529.56
Disclosure

SEC source: 0000919574-19-005522 · ownership.xml · nonDerivative · entry 12

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 3,046,217

F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $534.0000 to $534.0400. 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 purchased at each separate price within the ranges set forth in this footnote.

F2 · ownership.nature: Represents shares held directly or indirectly by Berkshire Fund VII, L.P. ("VII"), Berkshire Fund VII-A, L.P. ("VII-A"), Berkshire Fund VIII, L.P. ("VIII"), Berkshire Fund VIII-A, L.P. ("VIII-A"), Berkshire Investors LLC ("Investors"), Berkshire Investors III LLC ("Investors III"), Berkshire Investors IV LLC ("Investors IV"), Stockbridge Fund, L.P. ("SF") and Stockbridge Absolute Return Fund, L.P. ("SARF") (collectively, the "Berkshire Entities"). Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of each of Berkshire Partners LLC, the registered investment adviser to VII, VII-A, VIII, VIII-A, Investors, Investors III and Investors IV ("BP"), and SP, the registered investment adviser to SF and SARF. Seventh Berkshire Associates LLC ("7BA") is the general partner of each of VII and VII-A. Eighth Berkshire Associates LLC ("8BA") is the general partner of each of VIII and VIII-A.

F3 · ownership.nature: [Continued from Footnote 2] Stockbridge Associates LLC ("SA") is the general partner of each of SF and SARF. The Reporting Person is a managing member of each of BPH, BPSP, BP, SP, 8BA, 7BA, SA, Investors, Investors III and Investors IV. 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 the Berkshire Entities. 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
August 22, 2019 Filed Aug 22, 2019 23:50 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 111 $534.04 $59,278.44
Disclosure

SEC source: 0000919574-19-005522 · ownership.xml · nonDerivative · entry 11

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Stockbridge Partners LLC

Disclosed balance after: 147,275

F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $534.0000 to $534.0400. 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 purchased at each separate price within the ranges 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
August 22, 2019 Filed Aug 22, 2019 23:50 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 1,757 $533.31 $937,019.87
Disclosure

SEC source: 0000919574-19-005522 · ownership.xml · nonDerivative · entry 10

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 3,046,306

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $533.0000 to $533.9999. 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 purchased at each separate price within the ranges set forth in this footnote.

F2 · ownership.nature: Represents shares held directly or indirectly by Berkshire Fund VII, L.P. ("VII"), Berkshire Fund VII-A, L.P. ("VII-A"), Berkshire Fund VIII, L.P. ("VIII"), Berkshire Fund VIII-A, L.P. ("VIII-A"), Berkshire Investors LLC ("Investors"), Berkshire Investors III LLC ("Investors III"), Berkshire Investors IV LLC ("Investors IV"), Stockbridge Fund, L.P. ("SF") and Stockbridge Absolute Return Fund, L.P. ("SARF") (collectively, the "Berkshire Entities"). Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of each of Berkshire Partners LLC, the registered investment adviser to VII, VII-A, VIII, VIII-A, Investors, Investors III and Investors IV ("BP"), and SP, the registered investment adviser to SF and SARF. Seventh Berkshire Associates LLC ("7BA") is the general partner of each of VII and VII-A. Eighth Berkshire Associates LLC ("8BA") is the general partner of each of VIII and VIII-A.

F3 · ownership.nature: [Continued from Footnote 2] Stockbridge Associates LLC ("SA") is the general partner of each of SF and SARF. The Reporting Person is a managing member of each of BPH, BPSP, BP, SP, 8BA, 7BA, SA, Investors, Investors III and Investors IV. 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 the Berkshire Entities. 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
August 22, 2019 Filed Aug 22, 2019 23:50 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 2,200 $533.31 $1,173,274.74
Disclosure

SEC source: 0000919574-19-005522 · ownership.xml · nonDerivative · entry 9

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Stockbridge Partners LLC

Disclosed balance after: 147,386

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $533.0000 to $533.9999. 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 purchased at each separate price within the ranges 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
August 22, 2019 Filed Aug 22, 2019 23:50 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 4,720 $532.46 $2,513,187.60
Disclosure

SEC source: 0000919574-19-005522 · ownership.xml · nonDerivative · entry 8

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 3,048,063

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $532.0000 to $532.9999. 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 purchased at each separate price within the ranges set forth in this footnote.

F2 · ownership.nature: Represents shares held directly or indirectly by Berkshire Fund VII, L.P. ("VII"), Berkshire Fund VII-A, L.P. ("VII-A"), Berkshire Fund VIII, L.P. ("VIII"), Berkshire Fund VIII-A, L.P. ("VIII-A"), Berkshire Investors LLC ("Investors"), Berkshire Investors III LLC ("Investors III"), Berkshire Investors IV LLC ("Investors IV"), Stockbridge Fund, L.P. ("SF") and Stockbridge Absolute Return Fund, L.P. ("SARF") (collectively, the "Berkshire Entities"). Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of each of Berkshire Partners LLC, the registered investment adviser to VII, VII-A, VIII, VIII-A, Investors, Investors III and Investors IV ("BP"), and SP, the registered investment adviser to SF and SARF. Seventh Berkshire Associates LLC ("7BA") is the general partner of each of VII and VII-A. Eighth Berkshire Associates LLC ("8BA") is the general partner of each of VIII and VIII-A.

F3 · ownership.nature: [Continued from Footnote 2] Stockbridge Associates LLC ("SA") is the general partner of each of SF and SARF. The Reporting Person is a managing member of each of BPH, BPSP, BP, SP, 8BA, 7BA, SA, Investors, Investors III and Investors IV. 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 the Berkshire Entities. 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
August 22, 2019 Filed Aug 22, 2019 23:50 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 5,909 $532.46 $3,146,276.60
Disclosure

SEC source: 0000919574-19-005522 · ownership.xml · nonDerivative · entry 7

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Stockbridge Partners LLC

Disclosed balance after: 149,586

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $532.0000 to $532.9999. 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 purchased at each separate price within the ranges 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
August 22, 2019 Filed Aug 22, 2019 23:50 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 4,537 $531.46 $2,411,214.96
Disclosure

SEC source: 0000919574-19-005522 · ownership.xml · nonDerivative · entry 6

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 3,052,783

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $531.0000 to $531.9999. 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 purchased at each separate price within the ranges set forth in this footnote.

F2 · ownership.nature: Represents shares held directly or indirectly by Berkshire Fund VII, L.P. ("VII"), Berkshire Fund VII-A, L.P. ("VII-A"), Berkshire Fund VIII, L.P. ("VIII"), Berkshire Fund VIII-A, L.P. ("VIII-A"), Berkshire Investors LLC ("Investors"), Berkshire Investors III LLC ("Investors III"), Berkshire Investors IV LLC ("Investors IV"), Stockbridge Fund, L.P. ("SF") and Stockbridge Absolute Return Fund, L.P. ("SARF") (collectively, the "Berkshire Entities"). Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of each of Berkshire Partners LLC, the registered investment adviser to VII, VII-A, VIII, VIII-A, Investors, Investors III and Investors IV ("BP"), and SP, the registered investment adviser to SF and SARF. Seventh Berkshire Associates LLC ("7BA") is the general partner of each of VII and VII-A. Eighth Berkshire Associates LLC ("8BA") is the general partner of each of VIII and VIII-A.

F3 · ownership.nature: [Continued from Footnote 2] Stockbridge Associates LLC ("SA") is the general partner of each of SF and SARF. The Reporting Person is a managing member of each of BPH, BPSP, BP, SP, 8BA, 7BA, SA, Investors, Investors III and Investors IV. 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 the Berkshire Entities. 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
August 22, 2019 Filed Aug 22, 2019 23:50 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 5,678 $531.46 $3,017,606.03
Disclosure

SEC source: 0000919574-19-005522 · ownership.xml · nonDerivative · entry 5

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Stockbridge Partners LLC

Disclosed balance after: 155,495

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $531.0000 to $531.9999. 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 purchased at each separate price within the ranges 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
August 22, 2019 Filed Aug 22, 2019 23:50 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 5,047 $530.53 $2,677,573.30
Disclosure

SEC source: 0000919574-19-005522 · ownership.xml · nonDerivative · entry 4

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 3,057,320

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $530.0000 to $530.9999. 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 purchased at each separate price within the ranges set forth in this footnote.

F2 · ownership.nature: Represents shares held directly or indirectly by Berkshire Fund VII, L.P. ("VII"), Berkshire Fund VII-A, L.P. ("VII-A"), Berkshire Fund VIII, L.P. ("VIII"), Berkshire Fund VIII-A, L.P. ("VIII-A"), Berkshire Investors LLC ("Investors"), Berkshire Investors III LLC ("Investors III"), Berkshire Investors IV LLC ("Investors IV"), Stockbridge Fund, L.P. ("SF") and Stockbridge Absolute Return Fund, L.P. ("SARF") (collectively, the "Berkshire Entities"). Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of each of Berkshire Partners LLC, the registered investment adviser to VII, VII-A, VIII, VIII-A, Investors, Investors III and Investors IV ("BP"), and SP, the registered investment adviser to SF and SARF. Seventh Berkshire Associates LLC ("7BA") is the general partner of each of VII and VII-A. Eighth Berkshire Associates LLC ("8BA") is the general partner of each of VIII and VIII-A.

F3 · ownership.nature: [Continued from Footnote 2] Stockbridge Associates LLC ("SA") is the general partner of each of SF and SARF. The Reporting Person is a managing member of each of BPH, BPSP, BP, SP, 8BA, 7BA, SA, Investors, Investors III and Investors IV. 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 the Berkshire Entities. 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
August 22, 2019 Filed Aug 22, 2019 23:50 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 6,316 $530.53 $3,350,812.95
Disclosure

SEC source: 0000919574-19-005522 · ownership.xml · nonDerivative · entry 3

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Stockbridge Partners LLC

Disclosed balance after: 161,173

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $530.0000 to $530.9999. 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 purchased at each separate price within the ranges 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
August 22, 2019 Filed Aug 22, 2019 23:50 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 5,017 $529.39 $2,655,951.14
Disclosure

SEC source: 0000919574-19-005522 · ownership.xml · nonDerivative · entry 2

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 3,062,367

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $529.0000 to $529.9999. 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 purchased at each separate price within the ranges set forth in this footnote.

F2 · ownership.nature: Represents shares held directly or indirectly by Berkshire Fund VII, L.P. ("VII"), Berkshire Fund VII-A, L.P. ("VII-A"), Berkshire Fund VIII, L.P. ("VIII"), Berkshire Fund VIII-A, L.P. ("VIII-A"), Berkshire Investors LLC ("Investors"), Berkshire Investors III LLC ("Investors III"), Berkshire Investors IV LLC ("Investors IV"), Stockbridge Fund, L.P. ("SF") and Stockbridge Absolute Return Fund, L.P. ("SARF") (collectively, the "Berkshire Entities"). Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of each of Berkshire Partners LLC, the registered investment adviser to VII, VII-A, VIII, VIII-A, Investors, Investors III and Investors IV ("BP"), and SP, the registered investment adviser to SF and SARF. Seventh Berkshire Associates LLC ("7BA") is the general partner of each of VII and VII-A. Eighth Berkshire Associates LLC ("8BA") is the general partner of each of VIII and VIII-A.

F3 · ownership.nature: [Continued from Footnote 2] Stockbridge Associates LLC ("SA") is the general partner of each of SF and SARF. The Reporting Person is a managing member of each of BPH, BPSP, BP, SP, 8BA, 7BA, SA, Investors, Investors III and Investors IV. 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 the Berkshire Entities. 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
August 22, 2019 Filed Aug 22, 2019 23:50 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 6,279 $529.39 $3,324,041.69
Disclosure

SEC source: 0000919574-19-005522 · ownership.xml · nonDerivative · entry 1

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Stockbridge Partners LLC

Disclosed balance after: 167,489

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $529.0000 to $529.9999. 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 purchased at each separate price within the ranges 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
August 21, 2019 Filed Aug 22, 2019 23:46 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 89 $537.52 $47,839.50
Disclosure

SEC source: 0000919574-19-005521 · ownership.xml · nonDerivative · entry 22

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 3,067,384

F14 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $537.0000 to $537.7450. 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 purchased at each separate price within the ranges set forth in this footnote.

F2 · ownership.nature: Represents shares held directly or indirectly by Berkshire Fund VII, L.P. ("VII"), Berkshire Fund VII-A, L.P. ("VII-A"), Berkshire Fund VIII, L.P. ("VIII"), Berkshire Fund VIII-A, L.P. ("VIII-A"), Berkshire Investors LLC ("Investors"), Berkshire Investors III LLC ("Investors III"), Berkshire Investors IV LLC ("Investors IV"), Stockbridge Fund, L.P. ("SF") and Stockbridge Absolute Return Fund, L.P. ("SARF") (collectively, the "Berkshire Entities"). Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of each of Berkshire Partners LLC, the registered investment adviser to VII, VII-A, VIII, VIII-A, Investors, Investors III and Investors IV ("BP"), and SP, the registered investment adviser to SF and SARF. Seventh Berkshire Associates LLC ("7BA") is the general partner of each of VII and VII-A. Eighth Berkshire Associates LLC ("8BA") is the general partner of each of VIII and VIII-A.

F3 · ownership.nature: [Continued from Footnote 2] Stockbridge Associates LLC ("SA") is the general partner of each of SF and SARF. The Reporting Person is a managing member of each of BPH, BPSP, BP, SP, 8BA, 7BA, SA, Investors, Investors III and Investors IV. 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 the Berkshire Entities. 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
August 21, 2019 Filed Aug 22, 2019 23:46 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 111 $537.52 $59,665.00
Disclosure

SEC source: 0000919574-19-005521 · ownership.xml · nonDerivative · entry 21

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Stockbridge Partners LLC

Disclosed balance after: 173,768

F14 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $537.0000 to $537.7450. 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 purchased at each separate price within the ranges 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
August 21, 2019 Filed Aug 22, 2019 23:46 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 45 $536.52 $24,143.40
Disclosure

SEC source: 0000919574-19-005521 · ownership.xml · nonDerivative · entry 20

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 3,067,473

F13 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $536.0000 to $536.9999. 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 purchased at each separate price within the ranges set forth in this footnote.

F2 · ownership.nature: Represents shares held directly or indirectly by Berkshire Fund VII, L.P. ("VII"), Berkshire Fund VII-A, L.P. ("VII-A"), Berkshire Fund VIII, L.P. ("VIII"), Berkshire Fund VIII-A, L.P. ("VIII-A"), Berkshire Investors LLC ("Investors"), Berkshire Investors III LLC ("Investors III"), Berkshire Investors IV LLC ("Investors IV"), Stockbridge Fund, L.P. ("SF") and Stockbridge Absolute Return Fund, L.P. ("SARF") (collectively, the "Berkshire Entities"). Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of each of Berkshire Partners LLC, the registered investment adviser to VII, VII-A, VIII, VIII-A, Investors, Investors III and Investors IV ("BP"), and SP, the registered investment adviser to SF and SARF. Seventh Berkshire Associates LLC ("7BA") is the general partner of each of VII and VII-A. Eighth Berkshire Associates LLC ("8BA") is the general partner of each of VIII and VIII-A.

F3 · ownership.nature: [Continued from Footnote 2] Stockbridge Associates LLC ("SA") is the general partner of each of SF and SARF. The Reporting Person is a managing member of each of BPH, BPSP, BP, SP, 8BA, 7BA, SA, Investors, Investors III and Investors IV. 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 the Berkshire Entities. 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
August 21, 2019 Filed Aug 22, 2019 23:46 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 55 $536.52 $29,508.60
Disclosure

SEC source: 0000919574-19-005521 · ownership.xml · nonDerivative · entry 19

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Stockbridge Partners LLC

Disclosed balance after: 173,879

F13 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $536.0000 to $536.9999. 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 purchased at each separate price within the ranges 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
August 21, 2019 Filed Aug 22, 2019 23:46 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 1,697 $535.12 $908,095.08
Disclosure

SEC source: 0000919574-19-005521 · ownership.xml · nonDerivative · entry 18

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 3,067,518

F12 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $535.0000 to $535.9999. 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 purchased at each separate price within the ranges set forth in this footnote.

F2 · ownership.nature: Represents shares held directly or indirectly by Berkshire Fund VII, L.P. ("VII"), Berkshire Fund VII-A, L.P. ("VII-A"), Berkshire Fund VIII, L.P. ("VIII"), Berkshire Fund VIII-A, L.P. ("VIII-A"), Berkshire Investors LLC ("Investors"), Berkshire Investors III LLC ("Investors III"), Berkshire Investors IV LLC ("Investors IV"), Stockbridge Fund, L.P. ("SF") and Stockbridge Absolute Return Fund, L.P. ("SARF") (collectively, the "Berkshire Entities"). Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of each of Berkshire Partners LLC, the registered investment adviser to VII, VII-A, VIII, VIII-A, Investors, Investors III and Investors IV ("BP"), and SP, the registered investment adviser to SF and SARF. Seventh Berkshire Associates LLC ("7BA") is the general partner of each of VII and VII-A. Eighth Berkshire Associates LLC ("8BA") is the general partner of each of VIII and VIII-A.

F3 · ownership.nature: [Continued from Footnote 2] Stockbridge Associates LLC ("SA") is the general partner of each of SF and SARF. The Reporting Person is a managing member of each of BPH, BPSP, BP, SP, 8BA, 7BA, SA, Investors, Investors III and Investors IV. 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 the Berkshire Entities. 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
August 21, 2019 Filed Aug 22, 2019 23:46 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 2,092 $535.12 $1,119,466.65
Disclosure

SEC source: 0000919574-19-005521 · ownership.xml · nonDerivative · entry 17

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Stockbridge Partners LLC

Disclosed balance after: 173,934

F12 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $535.0000 to $535.9999. 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 purchased at each separate price within the ranges 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
August 21, 2019 Filed Aug 22, 2019 23:46 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 16,978 $534.26 $9,070,644.21
Disclosure

SEC source: 0000919574-19-005521 · ownership.xml · nonDerivative · entry 16

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 3,069,215

F11 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $534.0000 to $534.9999. 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 purchased at each separate price within the ranges set forth in this footnote.

F2 · ownership.nature: Represents shares held directly or indirectly by Berkshire Fund VII, L.P. ("VII"), Berkshire Fund VII-A, L.P. ("VII-A"), Berkshire Fund VIII, L.P. ("VIII"), Berkshire Fund VIII-A, L.P. ("VIII-A"), Berkshire Investors LLC ("Investors"), Berkshire Investors III LLC ("Investors III"), Berkshire Investors IV LLC ("Investors IV"), Stockbridge Fund, L.P. ("SF") and Stockbridge Absolute Return Fund, L.P. ("SARF") (collectively, the "Berkshire Entities"). Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of each of Berkshire Partners LLC, the registered investment adviser to VII, VII-A, VIII, VIII-A, Investors, Investors III and Investors IV ("BP"), and SP, the registered investment adviser to SF and SARF. Seventh Berkshire Associates LLC ("7BA") is the general partner of each of VII and VII-A. Eighth Berkshire Associates LLC ("8BA") is the general partner of each of VIII and VIII-A.

F3 · ownership.nature: [Continued from Footnote 2] Stockbridge Associates LLC ("SA") is the general partner of each of SF and SARF. The Reporting Person is a managing member of each of BPH, BPSP, BP, SP, 8BA, 7BA, SA, Investors, Investors III and Investors IV. 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 the Berkshire Entities. 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
August 21, 2019 Filed Aug 22, 2019 23:46 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 20,925 $534.26 $11,179,363.30
Disclosure

SEC source: 0000919574-19-005521 · ownership.xml · nonDerivative · entry 15

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Stockbridge Partners LLC

Disclosed balance after: 176,026

F11 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $534.0000 to $534.9999. 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 purchased at each separate price within the ranges 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
August 21, 2019 Filed Aug 22, 2019 23:46 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 15,685 $533.37 $8,365,924.14
Disclosure

SEC source: 0000919574-19-005521 · ownership.xml · nonDerivative · entry 14

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 3,086,193

F10 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $533.0000 to $533.9999. 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 purchased at each separate price within the ranges set forth in this footnote.

F2 · ownership.nature: Represents shares held directly or indirectly by Berkshire Fund VII, L.P. ("VII"), Berkshire Fund VII-A, L.P. ("VII-A"), Berkshire Fund VIII, L.P. ("VIII"), Berkshire Fund VIII-A, L.P. ("VIII-A"), Berkshire Investors LLC ("Investors"), Berkshire Investors III LLC ("Investors III"), Berkshire Investors IV LLC ("Investors IV"), Stockbridge Fund, L.P. ("SF") and Stockbridge Absolute Return Fund, L.P. ("SARF") (collectively, the "Berkshire Entities"). Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of each of Berkshire Partners LLC, the registered investment adviser to VII, VII-A, VIII, VIII-A, Investors, Investors III and Investors IV ("BP"), and SP, the registered investment adviser to SF and SARF. Seventh Berkshire Associates LLC ("7BA") is the general partner of each of VII and VII-A. Eighth Berkshire Associates LLC ("8BA") is the general partner of each of VIII and VIII-A.

F3 · ownership.nature: [Continued from Footnote 2] Stockbridge Associates LLC ("SA") is the general partner of each of SF and SARF. The Reporting Person is a managing member of each of BPH, BPSP, BP, SP, 8BA, 7BA, SA, Investors, Investors III and Investors IV. 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 the Berkshire Entities. 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
August 21, 2019 Filed Aug 22, 2019 23:46 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 19,333 $533.37 $10,311,661.54
Disclosure

SEC source: 0000919574-19-005521 · ownership.xml · nonDerivative · entry 13

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Stockbridge Partners LLC

Disclosed balance after: 196,951

F10 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $533.0000 to $533.9999. 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 purchased at each separate price within the ranges 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
August 21, 2019 Filed Aug 22, 2019 23:46 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 3,189 $532.43 $1,697,905.24
Disclosure

SEC source: 0000919574-19-005521 · ownership.xml · nonDerivative · entry 12

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 3,101,878

F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $532.0000 to $532.9999. 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 purchased at each separate price within the ranges set forth in this footnote.

F2 · ownership.nature: Represents shares held directly or indirectly by Berkshire Fund VII, L.P. ("VII"), Berkshire Fund VII-A, L.P. ("VII-A"), Berkshire Fund VIII, L.P. ("VIII"), Berkshire Fund VIII-A, L.P. ("VIII-A"), Berkshire Investors LLC ("Investors"), Berkshire Investors III LLC ("Investors III"), Berkshire Investors IV LLC ("Investors IV"), Stockbridge Fund, L.P. ("SF") and Stockbridge Absolute Return Fund, L.P. ("SARF") (collectively, the "Berkshire Entities"). Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of each of Berkshire Partners LLC, the registered investment adviser to VII, VII-A, VIII, VIII-A, Investors, Investors III and Investors IV ("BP"), and SP, the registered investment adviser to SF and SARF. Seventh Berkshire Associates LLC ("7BA") is the general partner of each of VII and VII-A. Eighth Berkshire Associates LLC ("8BA") is the general partner of each of VIII and VIII-A.

F3 · ownership.nature: [Continued from Footnote 2] Stockbridge Associates LLC ("SA") is the general partner of each of SF and SARF. The Reporting Person is a managing member of each of BPH, BPSP, BP, SP, 8BA, 7BA, SA, Investors, Investors III and Investors IV. 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 the Berkshire Entities. 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
August 21, 2019 Filed Aug 22, 2019 23:46 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 3,931 $532.43 $2,092,965.03
Disclosure

SEC source: 0000919574-19-005521 · ownership.xml · nonDerivative · entry 11

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Stockbridge Partners LLC

Disclosed balance after: 216,284

F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $532.0000 to $532.9999. 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 purchased at each separate price within the ranges 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
August 20, 2019 Filed Aug 22, 2019 23:46 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 262 $537.75 $140,891.21
Disclosure

SEC source: 0000919574-19-005521 · ownership.xml · nonDerivative · entry 10

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 3,105,067

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $537.5250 to $537.8000. 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 purchased at each separate price within the ranges set forth in this footnote.

F2 · ownership.nature: Represents shares held directly or indirectly by Berkshire Fund VII, L.P. ("VII"), Berkshire Fund VII-A, L.P. ("VII-A"), Berkshire Fund VIII, L.P. ("VIII"), Berkshire Fund VIII-A, L.P. ("VIII-A"), Berkshire Investors LLC ("Investors"), Berkshire Investors III LLC ("Investors III"), Berkshire Investors IV LLC ("Investors IV"), Stockbridge Fund, L.P. ("SF") and Stockbridge Absolute Return Fund, L.P. ("SARF") (collectively, the "Berkshire Entities"). Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of each of Berkshire Partners LLC, the registered investment adviser to VII, VII-A, VIII, VIII-A, Investors, Investors III and Investors IV ("BP"), and SP, the registered investment adviser to SF and SARF. Seventh Berkshire Associates LLC ("7BA") is the general partner of each of VII and VII-A. Eighth Berkshire Associates LLC ("8BA") is the general partner of each of VIII and VIII-A.

F3 · ownership.nature: [Continued from Footnote 2] Stockbridge Associates LLC ("SA") is the general partner of each of SF and SARF. The Reporting Person is a managing member of each of BPH, BPSP, BP, SP, 8BA, 7BA, SA, Investors, Investors III and Investors IV. 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 the Berkshire Entities. 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
August 20, 2019 Filed Aug 22, 2019 23:46 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 38 $537.75 $20,434.60
Disclosure

SEC source: 0000919574-19-005521 · ownership.xml · nonDerivative · entry 9

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Stockbridge Partners LLC

Disclosed balance after: 220,215

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $537.5250 to $537.8000. 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 purchased at each separate price within the ranges 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
August 20, 2019 Filed Aug 22, 2019 23:46 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 4,447 $536.80 $2,387,167.39
Disclosure

SEC source: 0000919574-19-005521 · ownership.xml · nonDerivative · entry 8

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 3,105,329

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $536.5250 to $537.5249. 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 purchased at each separate price within the ranges set forth in this footnote.

F2 · ownership.nature: Represents shares held directly or indirectly by Berkshire Fund VII, L.P. ("VII"), Berkshire Fund VII-A, L.P. ("VII-A"), Berkshire Fund VIII, L.P. ("VIII"), Berkshire Fund VIII-A, L.P. ("VIII-A"), Berkshire Investors LLC ("Investors"), Berkshire Investors III LLC ("Investors III"), Berkshire Investors IV LLC ("Investors IV"), Stockbridge Fund, L.P. ("SF") and Stockbridge Absolute Return Fund, L.P. ("SARF") (collectively, the "Berkshire Entities"). Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of each of Berkshire Partners LLC, the registered investment adviser to VII, VII-A, VIII, VIII-A, Investors, Investors III and Investors IV ("BP"), and SP, the registered investment adviser to SF and SARF. Seventh Berkshire Associates LLC ("7BA") is the general partner of each of VII and VII-A. Eighth Berkshire Associates LLC ("8BA") is the general partner of each of VIII and VIII-A.

F3 · ownership.nature: [Continued from Footnote 2] Stockbridge Associates LLC ("SA") is the general partner of each of SF and SARF. The Reporting Person is a managing member of each of BPH, BPSP, BP, SP, 8BA, 7BA, SA, Investors, Investors III and Investors IV. 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 the Berkshire Entities. 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
August 20, 2019 Filed Aug 22, 2019 23:46 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 653 $536.80 $350,533.01
Disclosure

SEC source: 0000919574-19-005521 · ownership.xml · nonDerivative · entry 7

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Stockbridge Partners LLC

Disclosed balance after: 220,253

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $536.5250 to $537.5249. 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 purchased at each separate price within the ranges 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
August 20, 2019 Filed Aug 22, 2019 23:46 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 18,467 $535.93 $9,897,050.70
Disclosure

SEC source: 0000919574-19-005521 · ownership.xml · nonDerivative · entry 6

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 3,109,776

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $535.5250 to $536.5249. 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 purchased at each separate price within the ranges set forth in this footnote.

F2 · ownership.nature: Represents shares held directly or indirectly by Berkshire Fund VII, L.P. ("VII"), Berkshire Fund VII-A, L.P. ("VII-A"), Berkshire Fund VIII, L.P. ("VIII"), Berkshire Fund VIII-A, L.P. ("VIII-A"), Berkshire Investors LLC ("Investors"), Berkshire Investors III LLC ("Investors III"), Berkshire Investors IV LLC ("Investors IV"), Stockbridge Fund, L.P. ("SF") and Stockbridge Absolute Return Fund, L.P. ("SARF") (collectively, the "Berkshire Entities"). Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of each of Berkshire Partners LLC, the registered investment adviser to VII, VII-A, VIII, VIII-A, Investors, Investors III and Investors IV ("BP"), and SP, the registered investment adviser to SF and SARF. Seventh Berkshire Associates LLC ("7BA") is the general partner of each of VII and VII-A. Eighth Berkshire Associates LLC ("8BA") is the general partner of each of VIII and VIII-A.

F3 · ownership.nature: [Continued from Footnote 2] Stockbridge Associates LLC ("SA") is the general partner of each of SF and SARF. The Reporting Person is a managing member of each of BPH, BPSP, BP, SP, 8BA, 7BA, SA, Investors, Investors III and Investors IV. 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 the Berkshire Entities. 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
August 20, 2019 Filed Aug 22, 2019 23:46 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 2,710 $535.93 $1,452,374.91
Disclosure

SEC source: 0000919574-19-005521 · ownership.xml · nonDerivative · entry 5

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Stockbridge Partners LLC

Disclosed balance after: 220,906

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $535.5250 to $536.5249. 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 purchased at each separate price within the ranges 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
August 20, 2019 Filed Aug 22, 2019 23:46 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 47,946 $535.06 $25,654,001.14
Disclosure

SEC source: 0000919574-19-005521 · ownership.xml · nonDerivative · entry 4

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 3,128,243

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $534.5250 to $535.5249. 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 purchased at each separate price within the ranges set forth in this footnote.

F2 · ownership.nature: Represents shares held directly or indirectly by Berkshire Fund VII, L.P. ("VII"), Berkshire Fund VII-A, L.P. ("VII-A"), Berkshire Fund VIII, L.P. ("VIII"), Berkshire Fund VIII-A, L.P. ("VIII-A"), Berkshire Investors LLC ("Investors"), Berkshire Investors III LLC ("Investors III"), Berkshire Investors IV LLC ("Investors IV"), Stockbridge Fund, L.P. ("SF") and Stockbridge Absolute Return Fund, L.P. ("SARF") (collectively, the "Berkshire Entities"). Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of each of Berkshire Partners LLC, the registered investment adviser to VII, VII-A, VIII, VIII-A, Investors, Investors III and Investors IV ("BP"), and SP, the registered investment adviser to SF and SARF. Seventh Berkshire Associates LLC ("7BA") is the general partner of each of VII and VII-A. Eighth Berkshire Associates LLC ("8BA") is the general partner of each of VIII and VIII-A.

F3 · ownership.nature: [Continued from Footnote 2] Stockbridge Associates LLC ("SA") is the general partner of each of SF and SARF. The Reporting Person is a managing member of each of BPH, BPSP, BP, SP, 8BA, 7BA, SA, Investors, Investors III and Investors IV. 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 the Berkshire Entities. 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
August 20, 2019 Filed Aug 22, 2019 23:46 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 7,035 $535.06 $3,764,149.21
Disclosure

SEC source: 0000919574-19-005521 · ownership.xml · nonDerivative · entry 3

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Stockbridge Partners LLC

Disclosed balance after: 223,616

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $534.5250 to $535.5249. 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 purchased at each separate price within the ranges 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
August 20, 2019 Filed Aug 22, 2019 23:46 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 60,957 $534.05 $32,554,043.18
Disclosure

SEC source: 0000919574-19-005521 · ownership.xml · nonDerivative · entry 2

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 3,176,189

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $533.5250 to $534.5249. 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 purchased at each separate price within the ranges set forth in this footnote.

F2 · ownership.nature: Represents shares held directly or indirectly by Berkshire Fund VII, L.P. ("VII"), Berkshire Fund VII-A, L.P. ("VII-A"), Berkshire Fund VIII, L.P. ("VIII"), Berkshire Fund VIII-A, L.P. ("VIII-A"), Berkshire Investors LLC ("Investors"), Berkshire Investors III LLC ("Investors III"), Berkshire Investors IV LLC ("Investors IV"), Stockbridge Fund, L.P. ("SF") and Stockbridge Absolute Return Fund, L.P. ("SARF") (collectively, the "Berkshire Entities"). Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of each of Berkshire Partners LLC, the registered investment adviser to VII, VII-A, VIII, VIII-A, Investors, Investors III and Investors IV ("BP"), and SP, the registered investment adviser to SF and SARF. Seventh Berkshire Associates LLC ("7BA") is the general partner of each of VII and VII-A. Eighth Berkshire Associates LLC ("8BA") is the general partner of each of VIII and VIII-A.

F3 · ownership.nature: [Continued from Footnote 2] Stockbridge Associates LLC ("SA") is the general partner of each of SF and SARF. The Reporting Person is a managing member of each of BPH, BPSP, BP, SP, 8BA, 7BA, SA, Investors, Investors III and Investors IV. 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 the Berkshire Entities. 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
August 20, 2019 Filed Aug 22, 2019 23:46 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 8,943 $534.05 $4,776,002.89
Disclosure

SEC source: 0000919574-19-005521 · ownership.xml · nonDerivative · entry 1

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Stockbridge Partners LLC

Disclosed balance after: 230,651

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $533.5250 to $534.5249. 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 purchased at each separate price within the ranges 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 20, 2019 Filed Feb 22, 2019 21:32 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 229,940 $434.90 $99,999,756.30
Disclosure

SEC source: 0000919574-19-001957 · ownership.xml · nonDerivative · entry 5

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 3,237,146

F2 · ownership.nature: Represents shares held directly or indirectly by Berkshire Fund VII, L.P. ("VII"), Berkshire Fund VII-A, L.P. ("VII-A"), Berkshire Fund VIII, L.P. ("VIII"), Berkshire Fund VIII-A, L.P. ("VIII-A"), Berkshire Investors LLC ("Investors"), Berkshire Investors III LLC ("Investors III"), Berkshire Investors IV LLC ("Investors IV"), Stockbridge Fund, L.P. ("SF") and Stockbridge Absolute Return Fund, L.P. ("SARF") (collectively, the "Berkshire Entities"). Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of each of Berkshire Partners LLC, the registered investment adviser to VII, VII-A, VIII, VIII-A, Investors, Investors III and Investors IV ("BP"), and SP, the registered investment adviser to SF and SARF. Seventh Berkshire Associates LLC ("7BA") is the general partner of each of VII and VII-A. Eighth Berkshire Associates LLC ("8BA") is the general partner of each of VIII and VIII-A.

F3 · ownership.nature: [Continued from Footnote 2] Stockbridge Associates LLC ("SA") is the general partner of each of SF and SARF. The Reporting Person is a managing member of each of BPH, BPSP, BP, SP, 8BA, 7BA, SA, Investors, Investors III and Investors IV. 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 the Berkshire Entities. 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.

F5 · ownership.nature: On February 20, 2019, VIII, VIII-A, Investors III and Investors IV indirectly purchased an aggregate of 149,571, 62,148, 3,865 and 14,356 shares, respectively, of the Issuer's common stock.

Read SEC document
February 20, 2019 Filed Feb 22, 2019 21:32 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 55,206 $434.90 $24,008,813.37
Disclosure

SEC source: 0000919574-19-001957 · ownership.xml · nonDerivative · entry 4

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Stockbridge Partners LLC

Disclosed balance after: 239,594

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 20, 2019 Filed Feb 22, 2019 21:32 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 174,734 $434.90 $75,990,942.93
Disclosure

SEC source: 0000919574-19-001957 · ownership.xml · nonDerivative · entry 3

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 3,007,206

F2 · ownership.nature: Represents shares held directly or indirectly by Berkshire Fund VII, L.P. ("VII"), Berkshire Fund VII-A, L.P. ("VII-A"), Berkshire Fund VIII, L.P. ("VIII"), Berkshire Fund VIII-A, L.P. ("VIII-A"), Berkshire Investors LLC ("Investors"), Berkshire Investors III LLC ("Investors III"), Berkshire Investors IV LLC ("Investors IV"), Stockbridge Fund, L.P. ("SF") and Stockbridge Absolute Return Fund, L.P. ("SARF") (collectively, the "Berkshire Entities"). Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of each of Berkshire Partners LLC, the registered investment adviser to VII, VII-A, VIII, VIII-A, Investors, Investors III and Investors IV ("BP"), and SP, the registered investment adviser to SF and SARF. Seventh Berkshire Associates LLC ("7BA") is the general partner of each of VII and VII-A. Eighth Berkshire Associates LLC ("8BA") is the general partner of each of VIII and VIII-A.

F3 · ownership.nature: [Continued from Footnote 2] Stockbridge Associates LLC ("SA") is the general partner of each of SF and SARF. The Reporting Person is a managing member of each of BPH, BPSP, BP, SP, 8BA, 7BA, SA, Investors, Investors III and Investors IV. 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 the Berkshire Entities. 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.

F4 · ownership.nature: On February 20, 2019, SF and SARF sold 278,805 and 48 shares, respectively, of the Issuer's common stock.

Read SEC document
February 20, 2019 Filed Feb 22, 2019 21:32 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 104,119 $433.25 $45,109,556.75
Disclosure

SEC source: 0000919574-19-001957 · ownership.xml · nonDerivative · entry 2

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 3,181,940

F2 · ownership.nature: Represents shares held directly or indirectly by Berkshire Fund VII, L.P. ("VII"), Berkshire Fund VII-A, L.P. ("VII-A"), Berkshire Fund VIII, L.P. ("VIII"), Berkshire Fund VIII-A, L.P. ("VIII-A"), Berkshire Investors LLC ("Investors"), Berkshire Investors III LLC ("Investors III"), Berkshire Investors IV LLC ("Investors IV"), Stockbridge Fund, L.P. ("SF") and Stockbridge Absolute Return Fund, L.P. ("SARF") (collectively, the "Berkshire Entities"). Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of each of Berkshire Partners LLC, the registered investment adviser to VII, VII-A, VIII, VIII-A, Investors, Investors III and Investors IV ("BP"), and SP, the registered investment adviser to SF and SARF. Seventh Berkshire Associates LLC ("7BA") is the general partner of each of VII and VII-A. Eighth Berkshire Associates LLC ("8BA") is the general partner of each of VIII and VIII-A.

F3 · ownership.nature: [Continued from Footnote 2] Stockbridge Associates LLC ("SA") is the general partner of each of SF and SARF. The Reporting Person is a managing member of each of BPH, BPSP, BP, SP, 8BA, 7BA, SA, Investors, Investors III and Investors IV. 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 the Berkshire Entities. 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.

F4 · ownership.nature: On February 20, 2019, SF and SARF sold 278,805 and 48 shares, respectively, of the Issuer's common stock.

Read SEC document
February 20, 2019 Filed Feb 22, 2019 21:32 UTC TransDigm Group INC TDG · Entity 2991 SaleCommon Stock 32,881 $433.25 $14,245,693.25
Disclosure

SEC source: 0000919574-19-001957 · ownership.xml · nonDerivative · entry 1

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Stockbridge Partners LLC

Disclosed balance after: 294,800

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
November 08, 2017 Filed Nov 9, 2017 16:28 UTC Amendment TransDigm Group INC TDG · Entity 2991 Exercise / conversionStock Option · Derivative 4,700 $0.00 Strike: $284.97 $0.00
Disclosure

SEC source: 0001209191-17-059913 · doc4a.xml · derivative · entry 1

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,700

Underlying: Common Stock · 4,700 shares

Expires 2027-11-08

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_date: Vest based on the achievement of annual per share operating performance targets between fiscal 2018 and fiscal 2022.

Read SEC document
November 08, 2017 Filed Nov 9, 2017 15:23 UTC TransDigm Group INC TDG · Entity 2991 Exercise / conversionStock Option · Derivative 4,700 $0.00 Strike: $284.97 $0.00
Disclosure

SEC source: 0001209191-17-059891 · doc4.xml · derivative · entry 1

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,700

Underlying: Common Stock · 4,700 shares

Expires 2028-09-30

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_date: Vest based on the achievement of annual per share operating performance targets between fiscal 2018 and fiscal 2022.

Read SEC document

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