Joel Reiss - 16 Mar 2026 Form 4 Insider Report for TransDigm Group INC (TDG)

Signature
/s/ Rachel L. Quinlan as attorney in fact for Joel Reiss
Issuer symbol
TDG
Transactions as of
16 Mar 2026
Net transactions value
-$4,850,431
Form type
4
Filing time
17 Mar 2026, 16:05:56 UTC
Previous filing
18 Feb 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Reiss Joel Co-Chief Operating Officer 1350 EUCLID AVE, SUITE 1600, CLEVELAND /s/ Rachel L. Quinlan as attorney in fact for Joel Reiss 17 Mar 2026 0001656109

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction TDG Common Stock Options Exercise +3,900 +108% $284.97* 7,500 16 Mar 2026 Direct
transaction TDG Common Stock Sale $24,457 -20 -0.27% $1222.87 7,480 16 Mar 2026 Direct
transaction TDG Common Stock Sale $86,218 -70 -0.94% $1231.69 7,410 16 Mar 2026 Direct F1
transaction TDG Common Stock Sale $73,954 -60 -0.81% $1232.57 7,350 16 Mar 2026 Direct F2
transaction TDG Common Stock Sale $61,681 -50 -0.68% $1233.62 7,300 16 Mar 2026 Direct F3
transaction TDG Common Stock Sale $49,405 -40 -0.55% $1235.12 7,260 16 Mar 2026 Direct F4
transaction TDG Common Stock Sale $69,233 -56 -0.77% $1236.31 7,204 16 Mar 2026 Direct F5
transaction TDG Common Stock Sale $165,858 -134 -1.9% $1237.75 7,070 16 Mar 2026 Direct F6
transaction TDG Common Stock Sale $198,172 -160 -2.3% $1238.57 6,910 16 Mar 2026 Direct F7
transaction TDG Common Stock Sale $322,386 -260 -3.8% $1239.94 6,650 16 Mar 2026 Direct F8
transaction TDG Common Stock Sale $521,185 -420 -6.3% $1240.92 6,230 16 Mar 2026 Direct F9
transaction TDG Common Stock Sale $397,435 -320 -5.1% $1241.98 5,910 16 Mar 2026 Direct F10
transaction TDG Common Stock Sale $435,049 -350 -5.9% $1243.00 5,560 16 Mar 2026 Direct F11
transaction TDG Common Stock Sale $149,290 -120 -2.2% $1244.09 5,440 16 Mar 2026 Direct F12
transaction TDG Common Stock Sale $112,059 -90 -1.7% $1245.10 5,350 16 Mar 2026 Direct F13
transaction TDG Common Stock Sale $282,889 -227 -4.2% $1246.21 5,123 16 Mar 2026 Direct F14
transaction TDG Common Stock Sale $662,199 -531 -10% $1247.08 4,592 16 Mar 2026 Direct F15
transaction TDG Common Stock Sale $611,636 -490 -11% $1248.24 4,102 16 Mar 2026 Direct F16
transaction TDG Common Stock Sale $393,526 -315 -7.7% $1249.29 3,787 16 Mar 2026 Direct F17
transaction TDG Common Stock Sale $233,798 -187 -4.9% $1250.25 3,600 16 Mar 2026 Direct F18

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction TDG Stock Option Options Exercise -3,900 -12% $0.000000* 27,500 16 Mar 2026 Common Stock 3,900 $284.97 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
F1 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,231.1800 - $1,232.0700. 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.
F2 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,232.2500 - $1,232.9900. 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.
F3 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,233.3300 - $1,234.1000. 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.
F4 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,234.6100 - $1,235.5600. 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.
F5 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,235.8600 - $1,236.8500. 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.
F6 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,237.1600 - $1,238.1400. 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.
F7 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,238.1900 - $1,239.1100. 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.
F8 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,239.3200 - $1,240.2900. 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.
F9 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,240.3900 - $1,241.2800. 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.
F10 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,241.5000 - $1,242.4800. 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.
F11 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,242.5000 - $1,243.4800. 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.
F12 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,243.5100 - $1,244.4400. 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.
F13 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,244.5100 - $1,245.4800. 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.
F14 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,245.5300 - $1,246.5200. 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.
F15 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,246.5900 - $1,247.5700. 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.
F16 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,247.6400 - $1,248.6200. 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.
F17 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,248.6400 - $1,249.5900. 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.
F18 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,249.6800 - $1,250.6500. 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.