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[Form 4] TransDigm Group Incorporated Insider Trading Activity

Filing Impact
(Very High)
Filing Sentiment
(Very Negative)
Form Type
4
Insider Reiss Joel
Role Co-Chief Operating Officer
Sold 3,000 shs ($4.79M)
Type Security Shares Price Value
Exercise Stock Option 3,000 $0.00 --
Exercise Common Stock 3,000 $284.97 $855K
Sale Common Stock 229 $1,586.1365 $363K
Sale Common Stock 140 $1,586.78 $222K
Sale Common Stock 134 $1,588.2312 $213K
Sale Common Stock 200 $1,590.804 $318K
Sale Common Stock 10 $1,592.18 $16K
Sale Common Stock 348 $1,593.7074 $555K
Sale Common Stock 300 $1,599.00 $480K
Sale Common Stock 220 $1,600.6611 $352K
Sale Common Stock 714 $1,601.3088 $1.14M
Sale Common Stock 200 $1,603.19 $321K
Sale Common Stock 200 $1,604.26 $321K
Sale Common Stock 148 $1,605.6928 $238K
Sale Common Stock 157 $1,607.49 $252K
Holdings After Transaction: Stock Option — 56,000 shares (Direct); Common Stock — 6,600 shares (Direct)
Footnotes (1)
  1. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1585.6450 - $1586.6200. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1588.0900 - $1588.5200. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1590.6100 - $1591.2700. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1593.4200 - $1593.7900. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1600.1500 - $1600.9600. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1601.0500 - $1601.7450. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1605.6750 - $1605.7300. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.
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Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0287
Estimated average burden
hours per response: 0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person*
Reiss Joel
(Last) (First) (Middle)
1350 EUCLID AVE
SUITE 1600
(Street)
CLEVELAND OH 44115
(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
TransDigm Group INC [ TDG ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
Co-Chief Operating Officer
3. Date of Earliest Transaction (Month/Day/Year)
07/21/2025
4. If Amendment, Date of Original Filed (Month/Day/Year)
 6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 07/21/2025 M 3,000 A $284.97 6,600 D
Common Stock 07/21/2025 S 229 D $1,586.1365(1) 6,371 D
Common Stock 07/21/2025 S 140 D $1,586.78 6,231 D
Common Stock 07/21/2025 S 134 D $1,588.2312(2) 6,097 D
Common Stock 07/21/2025 S 200 D $1,590.804(3) 5,897 D
Common Stock 07/21/2025 S 10 D $1,592.18 5,887 D
Common Stock 07/21/2025 S 348 D $1,593.7074(4) 5,539 D
Common Stock 07/21/2025 S 300 D $1,599 5,239 D
Common Stock 07/21/2025 S 220 D $1,600.6611(5) 5,019 D
Common Stock 07/21/2025 S 714 D $1,601.3088(6) 4,305 D
Common Stock 07/21/2025 S 200 D $1,603.19 4,105 D
Common Stock 07/21/2025 S 200 D $1,604.26 3,905 D
Common Stock 07/21/2025 S 148 D $1,605.6928(7) 3,757 D
Common Stock 07/21/2025 S 157 D $1,607.49 3,600 D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Option $284.97 07/21/2025 M 3,000 09/30/2021 11/08/2027 Common Stock 3,000 $0 56,000 D
Explanation of Responses:
1. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1585.6450 - $1586.6200. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.
2. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1588.0900 - $1588.5200. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.
3. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1590.6100 - $1591.2700. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.
4. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1593.4200 - $1593.7900. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.
5. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1600.1500 - $1600.9600. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.
6. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1601.0500 - $1601.7450. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.
7. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1605.6750 - $1605.7300. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.
/s/ Gabrielle Feuer as attorney-in-fact 07/22/2025
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

Source: View Original Filing on SEC EDGAR