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[Form 4] TransDigm Group Incorporated Insider Trading Activity

Filing Impact
(Very High)
Filing Sentiment
(Negative)
Form Type
4
Insider Howley W Nicholas
Role Director
Sold 2,736 shs ($4.30M)
Type Security Shares Price Value
Exercise Stock Option 2,736 $0.00 --
Exercise Common Stock 2,736 $140.92 $386K
Sale Common Stock 360 $1,565.345 $564K
Sale Common Stock 430 $1,566.4479 $674K
Sale Common Stock 349 $1,567.243 $547K
Sale Common Stock 540 $1,568.8254 $847K
Sale Common Stock 220 $1,570.8525 $346K
Sale Common Stock 87 $1,573.0941 $137K
Sale Common Stock 450 $1,573.9489 $708K
Sale Common Stock 200 $1,575.82 $315K
Sale Common Stock 100 $1,580.10 $158K
Holdings After Transaction: Stock Option — 10,089 shares (Indirect, W. Nicholas Howley Family Trust u/a/d 4/23/99); Common Stock — 24,283.513 shares (Indirect, W. Nicholas Howley Family Trust u/a/d 4/23/99)
Footnotes (1)
  1. The exercise price has been adjusted for dividends declared since August 1, 2022. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,564.84 - $1,565.62. 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 $1,565.86 - $1,566.65. 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 $1,566.90 - $1,567.825. 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 $1,568.38 - $1,569.29. 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 $1,570.65 - $1,571.14. 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 $1,572.445 - $1,573.330. 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 $1,573.50 - $1,574.45. 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.
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*
Howley W Nicholas
(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)
X Director 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
07/15/2025
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 07/15/2025 M 2,736 A $140.92(1) 24,283.513 I W. Nicholas Howley Family Trust u/a/d 4/23/99
Common Stock 07/15/2025 S 360 D $1,565.345(2) 23,923.513 I W. Nicholas Howley Family Trust u/a/d 4/23/99
Common Stock 07/15/2025 S 430 D $1,566.4479(3) 23,493.513 I W. Nicholas Howley Family Trust u/a/d 4/23/99
Common Stock 07/15/2025 S 349 D $1,567.243(4) 23,144.513 I W. Nicholas Howley Family Trust u/a/d 4/23/99
Common Stock 07/15/2025 S 540 D $1,568.8254(5) 22,604.513 I W. Nicholas Howley Family Trust u/a/d 4/23/99
Common Stock 07/15/2025 S 220 D $1,570.8525(6) 22,384.513 I W. Nicholas Howley Family Trust u/a/d 4/23/99
Common Stock 07/15/2025 S 87 D $1,573.0941(7) 22,297.513 I W. Nicholas Howley Family Trust u/a/d 4/23/99
Common Stock 07/15/2025 S 450 D $1,573.9489(8) 21,847.513 I W. Nicholas Howley Family Trust u/a/d 4/23/99
Common Stock 07/15/2025 S 200 D $1,575.82 21,647.513 I W. Nicholas Howley Family Trust u/a/d 4/23/99
Common Stock 07/15/2025 S 100 D $1,580.1 21,547.513 I W. Nicholas Howley Family Trust u/a/d 4/23/99
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 $140.92(1) 07/15/2025 M 2,736 09/30/2017 11/10/2026 Common Stock 2,736 $0 10,089 I W. Nicholas Howley Family Trust u/a/d 4/23/99
Explanation of Responses:
1. The exercise price has been adjusted for dividends declared since August 1, 2022.
2. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,564.84 - $1,565.62. 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 $1,565.86 - $1,566.65. 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 $1,566.90 - $1,567.825. 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 $1,568.38 - $1,569.29. 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 $1,570.65 - $1,571.14. 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 $1,572.445 - $1,573.330. 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.
8. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,573.50 - $1,574.45. 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 07/15/2025
** 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.
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Source: View Original Filing on SEC EDGAR