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person · Reporting owner

SMALL ROBERT J

Disclosed activity across 1 company

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64244
SEC CIK
0001234544

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Reported relationships

Latest disclosed role at each company.

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

Disclosed balances

About these balances

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

TransDigm Group INC

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

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

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

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

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

Row 2 · Balance 60,246

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

Row 3 · Balance 366,142

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

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

Row 4 · Balance 68,139

Filing footnotes · ownership attribution and instrument terms

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

Transaction history

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

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

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
May 11, 2020 Filed May 14, 2020 00:12 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 485 $354.28 $171,825.80
Disclosure

SEC source: 0000919574-20-003305 · ownership.xml · nonDerivative · entry 28

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 2,022,583

F17 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $354.07 to $354.34. 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
May 11, 2020 Filed May 14, 2020 00:12 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 15 $354.28 $5,314.20
Disclosure

SEC source: 0000919574-20-003305 · ownership.xml · nonDerivative · entry 27

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Stockbridge Partners LLC

Disclosed balance after: 159,348

F17 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $354.07 to $354.34. 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.

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May 11, 2020 Filed May 14, 2020 00:12 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 17,811 $353.48 $6,295,832.28
Disclosure

SEC source: 0000919574-20-003305 · ownership.xml · nonDerivative · entry 26

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 2,022,098

F16 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $353.07 to $354.0699. 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.

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May 11, 2020 Filed May 14, 2020 00:12 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 559 $353.48 $197,595.32
Disclosure

SEC source: 0000919574-20-003305 · ownership.xml · nonDerivative · entry 25

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Stockbridge Partners LLC

Disclosed balance after: 159,333

F16 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $353.07 to $354.0699. 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.

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May 11, 2020 Filed May 14, 2020 00:12 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 35,581 $352.61 $12,546,216.41
Disclosure

SEC source: 0000919574-20-003305 · ownership.xml · nonDerivative · entry 24

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 2,004,287

F15 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $352.07 to $353.0699. 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.

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May 11, 2020 Filed May 14, 2020 00:12 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 1,116 $352.61 $393,512.76
Disclosure

SEC source: 0000919574-20-003305 · ownership.xml · nonDerivative · entry 23

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Stockbridge Partners LLC

Disclosed balance after: 158,774

F15 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $352.07 to $353.0699. 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
May 11, 2020 Filed May 14, 2020 00:12 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 14,350 $351.87 $5,049,334.50
Disclosure

SEC source: 0000919574-20-003305 · ownership.xml · nonDerivative · entry 22

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 1,968,706

F14 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $351.07 to $352.0699. 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
May 11, 2020 Filed May 14, 2020 00:12 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 450 $351.87 $158,341.50
Disclosure

SEC source: 0000919574-20-003305 · 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: 157,658

F14 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $351.07 to $352.0699. 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
May 11, 2020 Filed May 14, 2020 00:12 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 7,761 $350.59 $2,720,928.99
Disclosure

SEC source: 0000919574-20-003305 · ownership.xml · nonDerivative · entry 20

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 1,954,356

F13 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $350.07 to $351.0699. 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
May 11, 2020 Filed May 14, 2020 00:12 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 244 $350.59 $85,543.96
Disclosure

SEC source: 0000919574-20-003305 · 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: 157,208

F13 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $350.07 to $351.0699. 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
May 11, 2020 Filed May 14, 2020 00:12 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 5,099 $349.97 $1,784,497.03
Disclosure

SEC source: 0000919574-20-003305 · ownership.xml · nonDerivative · entry 18

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 1,946,595

F12 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $349.73 to $350. 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
May 11, 2020 Filed May 14, 2020 00:12 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 101 $349.97 $35,346.97
Disclosure

SEC source: 0000919574-20-003305 · 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: 156,964

F12 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $349.73 to $350. 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
May 11, 2020 Filed May 14, 2020 00:12 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 8,431 $349.15 $2,943,683.65
Disclosure

SEC source: 0000919574-20-003305 · ownership.xml · nonDerivative · entry 16

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 1,941,496

F11 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $348.73 to $349.7299. 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.

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May 11, 2020 Filed May 14, 2020 00:12 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 167 $349.15 $58,308.05
Disclosure

SEC source: 0000919574-20-003305 · 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: 156,863

F11 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $348.73 to $349.7299. 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
May 11, 2020 Filed May 14, 2020 00:12 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 3,169 $348.26 $1,103,635.94
Disclosure

SEC source: 0000919574-20-003305 · ownership.xml · nonDerivative · entry 14

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 1,933,065

F10 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $347.73 to $348.7299. 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.

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May 11, 2020 Filed May 14, 2020 00:12 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 63 $348.26 $21,940.38
Disclosure

SEC source: 0000919574-20-003305 · 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: 156,696

F10 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $347.73 to $348.7299. 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.

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May 11, 2020 Filed May 14, 2020 00:12 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 2,648 $347.13 $919,200.24
Disclosure

SEC source: 0000919574-20-003305 · ownership.xml · nonDerivative · entry 12

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 1,929,896

F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $346.73 to $347.7299. 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.

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May 11, 2020 Filed May 14, 2020 00:12 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 52 $347.13 $18,050.76
Disclosure

SEC source: 0000919574-20-003305 · 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: 156,633

F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $346.73 to $347.7299. 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
May 11, 2020 Filed May 14, 2020 00:12 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 1,549 $346.29 $536,403.21
Disclosure

SEC source: 0000919574-20-003305 · ownership.xml · nonDerivative · entry 10

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 1,927,248

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $345.73 to $346.7299. 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.

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May 11, 2020 Filed May 14, 2020 00:12 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 31 $346.29 $10,734.99
Disclosure

SEC source: 0000919574-20-003305 · 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: 156,581

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $345.73 to $346.7299. 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
May 11, 2020 Filed May 14, 2020 00:12 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 5,557 $345.36 $1,919,165.52
Disclosure

SEC source: 0000919574-20-003305 · ownership.xml · nonDerivative · entry 8

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 1,925,699

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $344.73 to $345.7299. 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.

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May 11, 2020 Filed May 14, 2020 00:12 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 110 $345.36 $37,989.60
Disclosure

SEC source: 0000919574-20-003305 · 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: 156,550

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $344.73 to $345.7299. 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
May 11, 2020 Filed May 14, 2020 00:12 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 687 $341.98 $234,940.26
Disclosure

SEC source: 0000919574-20-003305 · ownership.xml · nonDerivative · entry 6

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 1,920,142

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $341.73 to $342.7299. 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.

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May 11, 2020 Filed May 14, 2020 00:12 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 13 $341.98 $4,445.74
Disclosure

SEC source: 0000919574-20-003305 · 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: 156,440

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $341.73 to $342.7299. 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
May 11, 2020 Filed May 14, 2020 00:12 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 3,040 $341.25 $1,037,400.00
Disclosure

SEC source: 0000919574-20-003305 · ownership.xml · nonDerivative · entry 4

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 1,919,455

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $340.73 to $341.7299. 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.

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May 11, 2020 Filed May 14, 2020 00:12 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 60 $341.25 $20,475.00
Disclosure

SEC source: 0000919574-20-003305 · 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: 156,427

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $340.73 to $341.7299. 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
May 11, 2020 Filed May 14, 2020 00:12 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 2,017 $340.33 $686,445.61
Disclosure

SEC source: 0000919574-20-003305 · ownership.xml · nonDerivative · entry 2

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 1,916,415

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $339.73 to $340.7299. 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.

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May 11, 2020 Filed May 14, 2020 00:12 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 39 $340.33 $13,272.87
Disclosure

SEC source: 0000919574-20-003305 · 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: 156,367

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $339.73 to $340.7299. 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.

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April 15, 2020 Filed Apr 17, 2020 20:12 UTC TransDigm Group INC TDG · Entity 2991 Exercise / conversionStock Option · Derivative 5,500 $0.00 Strike: $56.71 $0.00
Disclosure

SEC source: 0000919574-20-002965 · ownership.xml · derivative · entry 6

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 5,500 shares

Expires 2020-04-23

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 · kind: This Form is being filed to report the exercise of a stock option for a total of 5,500 shares of Common Stock. The Reporting Person disclaims beneficial ownership in the reported securities except to the extent of his pecuniary interest, if any, therein.

F7 · ownership.direct: Represents shares of Common Stock held directly by the Reporting Person.

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April 15, 2020 Filed Apr 17, 2020 20:12 UTC TransDigm Group INC TDG · Entity 2991 Exercise / conversionCommon Stock 5,500 $56.71 $311,905.00
Disclosure

SEC source: 0000919574-20-002965 · ownership.xml · nonDerivative · entry 1

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,948

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 · kind: This Form is being filed to report the exercise of a stock option for a total of 5,500 shares of Common Stock. The Reporting Person disclaims beneficial ownership in the reported securities except to the extent of his pecuniary interest, if any, therein.

F7 · ownership.direct: Represents shares of Common Stock held directly by the Reporting Person.

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

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March 17, 2020 Filed Mar 17, 2020 19:13 UTC TransDigm Group INC TDG · Entity 2991 GrantCommon Stock 90 $414.72 $37,324.80
Disclosure

SEC source: 0001209191-20-019535 · doc4.xml · nonDerivative · entry 1

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 58,773

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

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March 17, 2020 Filed Mar 23, 2020 16:32 UTC Amendment TransDigm Group INC TDG · Entity 2991 OtherCommon Stock 0 $0.00 $0.00
Disclosure

SEC source: 0001209191-20-020598 · doc4a.xml · nonDerivative · entry 1

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 58,683

Read SEC document
March 12, 2020 Filed Mar 16, 2020 23:14 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 1,129 $425.53 $480,423.37
Disclosure

SEC source: 0000919574-20-002470 · ownership.xml · nonDerivative · entry 3

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 1,914,398

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $425.42 to $426.4199. 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 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 Stockbridge Partners LLC ("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.

F2 · ownership.nature: [Continued from Footnote 1] 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.

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March 12, 2020 Filed Mar 16, 2020 23:14 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 1,705 $424.84 $724,352.20
Disclosure

SEC source: 0000919574-20-002470 · ownership.xml · nonDerivative · entry 2

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 1,913,269

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $424.42 to $425.4199. 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 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 Stockbridge Partners LLC ("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.

F2 · ownership.nature: [Continued from Footnote 1] 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.

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March 12, 2020 Filed Mar 16, 2020 23:14 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 197 $423.48 $83,425.56
Disclosure

SEC source: 0000919574-20-002470 · ownership.xml · nonDerivative · entry 1

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 1,911,564

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $423.42 to $424.4199. 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 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 Stockbridge Partners LLC ("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.

F2 · ownership.nature: [Continued from Footnote 1] 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.

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March 12, 2020 Filed Mar 16, 2020 23:08 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 1,303 $422.66 $550,725.98
Disclosure

SEC source: 0000919574-20-002469 · ownership.xml · nonDerivative · entry 30

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 1,911,367

F32 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $422.42 to $423.4199. 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 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 Stockbridge Partners LLC ("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.

F2 · ownership.nature: [Continued from Footnote 1] 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.

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March 12, 2020 Filed Mar 16, 2020 23:08 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 3,386 $421.90 $1,428,553.40
Disclosure

SEC source: 0000919574-20-002469 · ownership.xml · nonDerivative · entry 29

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 1,910,064

F31 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $421.42 to $422.4199. 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 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 Stockbridge Partners LLC ("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.

F2 · ownership.nature: [Continued from Footnote 1] 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.

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March 12, 2020 Filed Mar 16, 2020 23:08 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 2,914 $421.06 $1,226,968.84
Disclosure

SEC source: 0000919574-20-002469 · ownership.xml · nonDerivative · entry 28

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 1,906,678

F30 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $420.42 to $421.4199. 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 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 Stockbridge Partners LLC ("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.

F2 · ownership.nature: [Continued from Footnote 1] 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.

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March 12, 2020 Filed Mar 16, 2020 23:08 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 6,342 $419.79 $2,662,308.18
Disclosure

SEC source: 0000919574-20-002469 · ownership.xml · nonDerivative · entry 27

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 1,903,764

F29 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $419.42 to $420.4199. 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 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 Stockbridge Partners LLC ("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.

F2 · ownership.nature: [Continued from Footnote 1] 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.

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March 12, 2020 Filed Mar 16, 2020 23:08 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 1,943 $419.23 $814,563.89
Disclosure

SEC source: 0000919574-20-002469 · ownership.xml · nonDerivative · entry 26

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 1,897,422

F28 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $418.42 to $419.4199. 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 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 Stockbridge Partners LLC ("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.

F2 · ownership.nature: [Continued from Footnote 1] 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.

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March 12, 2020 Filed Mar 16, 2020 23:08 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 1,100 $417.79 $459,569.00
Disclosure

SEC source: 0000919574-20-002469 · ownership.xml · nonDerivative · entry 25

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 1,895,479

F27 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $417.42 to $418.4199. 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 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 Stockbridge Partners LLC ("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.

F2 · ownership.nature: [Continued from Footnote 1] 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.

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March 12, 2020 Filed Mar 16, 2020 23:08 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 300 $417.24 $125,172.00
Disclosure

SEC source: 0000919574-20-002469 · ownership.xml · nonDerivative · entry 24

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 1,894,379

F26 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $416.42 to $417.4199. 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 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 Stockbridge Partners LLC ("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.

F2 · ownership.nature: [Continued from Footnote 1] 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.

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March 12, 2020 Filed Mar 16, 2020 23:08 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 575 $415.84 $239,108.00
Disclosure

SEC source: 0000919574-20-002469 · ownership.xml · nonDerivative · entry 23

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 1,894,079

F25 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $415.42 to $416.4199. 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 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 Stockbridge Partners LLC ("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.

F2 · ownership.nature: [Continued from Footnote 1] 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.

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March 12, 2020 Filed Mar 16, 2020 23:08 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 3,526 $414.85 $1,462,761.10
Disclosure

SEC source: 0000919574-20-002469 · ownership.xml · nonDerivative · entry 22

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 1,893,504

F24 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $414.42 to $415.4199. 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 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 Stockbridge Partners LLC ("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.

F2 · ownership.nature: [Continued from Footnote 1] 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.

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March 12, 2020 Filed Mar 16, 2020 23:08 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 7,078 $413.75 $2,928,522.50
Disclosure

SEC source: 0000919574-20-002469 · ownership.xml · nonDerivative · entry 21

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 1,889,978

F23 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $413.42 to $414.4199. 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 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 Stockbridge Partners LLC ("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.

F2 · ownership.nature: [Continued from Footnote 1] 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.

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March 12, 2020 Filed Mar 16, 2020 23:08 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 3,777 $413.01 $1,559,938.77
Disclosure

SEC source: 0000919574-20-002469 · ownership.xml · nonDerivative · entry 20

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 1,882,900

F22 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $412.42 to $413.4199. 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 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 Stockbridge Partners LLC ("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.

F2 · ownership.nature: [Continued from Footnote 1] 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.

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March 12, 2020 Filed Mar 16, 2020 23:08 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 6,149 $411.96 $2,533,142.04
Disclosure

SEC source: 0000919574-20-002469 · ownership.xml · nonDerivative · entry 19

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 1,879,123

F21 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $411.42 to $412.4199. 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 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 Stockbridge Partners LLC ("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.

F2 · ownership.nature: [Continued from Footnote 1] 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.

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March 12, 2020 Filed Mar 16, 2020 23:08 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 2,450 $410.84 $1,006,558.00
Disclosure

SEC source: 0000919574-20-002469 · ownership.xml · nonDerivative · entry 18

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 1,872,974

F20 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $410.42 to $411.4199. 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 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 Stockbridge Partners LLC ("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.

F2 · ownership.nature: [Continued from Footnote 1] 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.

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March 12, 2020 Filed Mar 16, 2020 23:08 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 10,484 $409.86 $4,296,972.24
Disclosure

SEC source: 0000919574-20-002469 · ownership.xml · nonDerivative · entry 17

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 1,870,524

F19 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $409.42 to $410.4199. 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 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 Stockbridge Partners LLC ("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.

F2 · ownership.nature: [Continued from Footnote 1] 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.

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March 12, 2020 Filed Mar 16, 2020 23:08 UTC TransDigm Group INC TDG · Entity 2991 PurchaseCommon Stock 6,801 $408.91 $2,780,996.91
Disclosure

SEC source: 0000919574-20-002469 · ownership.xml · nonDerivative · entry 16

SMALL ROBERT J · CIK 0001234544 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Berkshire Entities

Disclosed balance after: 1,860,040

F18 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $408.42 to $409.4199. 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 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 Stockbridge Partners LLC ("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.

F2 · ownership.nature: [Continued from Footnote 1] 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.

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