Joel Reiss - 17 Feb 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
17 Feb 2026
Net transactions value
-$3,934,758
Form type
4
Filing time
18 Feb 2026, 16:00:57 UTC
Previous filing
16 Jan 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 18 Feb 2026 0001656109

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction TDG Common Stock Options Exercise $1,111,383 +3,900 +108% $284.97 7,500 17 Feb 2026 Direct
transaction TDG Common Stock Sale $34,551 -27 -0.36% $1279.68 7,473 17 Feb 2026 Direct F1
transaction TDG Common Stock Sale $144,721 -113 -1.5% $1280.72 7,360 17 Feb 2026 Direct F2
transaction TDG Common Stock Sale $126,961 -99 -1.3% $1282.44 7,261 17 Feb 2026 Direct F3
transaction TDG Common Stock Sale $91,109 -71 -0.98% $1283.22 7,190 17 Feb 2026 Direct F4
transaction TDG Common Stock Sale $154,166 -120 -1.7% $1284.71 7,070 17 Feb 2026 Direct F5
transaction TDG Common Stock Sale $154,327 -120 -1.7% $1286.06 6,950 17 Feb 2026 Direct F6
transaction TDG Common Stock Sale $136,439 -106 -1.5% $1287.16 6,844 17 Feb 2026 Direct F7
transaction TDG Common Stock Sale $133,951 -104 -1.5% $1287.99 6,740 17 Feb 2026 Direct F8
transaction TDG Common Stock Sale $180,475 -140 -2.1% $1289.10 6,600 17 Feb 2026 Direct F9
transaction TDG Common Stock Sale $180,631 -140 -2.1% $1290.22 6,460 17 Feb 2026 Direct F10
transaction TDG Common Stock Sale $234,982 -182 -2.8% $1291.11 6,278 17 Feb 2026 Direct F11
transaction TDG Common Stock Sale $276,563 -214 -3.4% $1292.35 6,064 17 Feb 2026 Direct F12
transaction TDG Common Stock Sale $466,850 -361 -6% $1293.21 5,703 17 Feb 2026 Direct F13
transaction TDG Common Stock Sale $222,621 -172 -3% $1294.31 5,531 17 Feb 2026 Direct F14
transaction TDG Common Stock Sale $344,604 -266 -4.8% $1295.50 5,265 17 Feb 2026 Direct F15
transaction TDG Common Stock Sale $321,564 -248 -4.7% $1296.63 5,017 17 Feb 2026 Direct F16
transaction TDG Common Stock Sale $422,982 -326 -6.5% $1297.49 4,691 17 Feb 2026 Direct F17
transaction TDG Common Stock Sale $509,106 -392 -8.4% $1298.74 4,299 17 Feb 2026 Direct F18
transaction TDG Common Stock Sale $285,902 -220 -5.1% $1299.56 4,079 17 Feb 2026 Direct F19
transaction TDG Common Stock Sale $429,299 -330 -8.1% $1300.91 3,749 17 Feb 2026 Direct F20
transaction TDG Common Stock Sale $37,770 -29 -0.77% $1302.41 3,720 17 Feb 2026 Direct F21
transaction TDG Common Stock Sale $65,199 -50 -1.3% $1303.99 3,670 17 Feb 2026 Direct F22
transaction TDG Common Stock Sale $91,370 -70 -1.9% $1305.28 3,600 17 Feb 2026 Direct F23

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 $0 -3,900 -11% $0.000000 31,400 17 Feb 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 $1,279.3400 - $1,280.3100. 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 $1,280.3500 - $1,281.1200. 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 $1,281.9100 - $1,282.8900. 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 $1,283.0900 - $1,284.0000. 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 $1,284.3000 - $1,285.2300. 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 $1,285.5900 - $1,286.4800. 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.
F7 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,286.6100 - $1,287.5600. 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.
F8 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,287.6200 - $1,288.5500. 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 $1,288.7000 - $1,289.4200. 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 $1,289.7000 - $1,290.6300. 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 $1,290.7500 - $1,291.6500. 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.
F12 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,291.8700 - $1,292.8600. 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 $1,292.9000 - $1,293.7800. 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 $1,293.9000 - $1,294.8300. 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 $1,294.9800 - $1,295.9400. 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 $1,296.0800 - $1,297.0700. 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.
F17 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,297.1700 - $1,298.0500. 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 $1,298.2500 - $1,299.1700. 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.
F19 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,299.2500 - $1,300.0800. 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.
F20 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,300.2800 - $1,301.1900. 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.
F21 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,302.2000 - $1,302.5200. 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.
F22 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,303.7400 - $1,304.4100. 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.
F23 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,305.0800 - $1,305.6200. 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.