W. Nicholas Howley - 18 Feb 2026 Form 4 Insider Report for TransDigm Group INC (TDG)

Role
Director
Signature
/s/ Lisa Tortora French as attorney in-fact for W. Nicholas Howley
Issuer symbol
TDG
Transactions as of
18 Feb 2026
Net transactions value
-$12,778,756
Form type
4
Filing time
20 Feb 2026, 16:15:10 UTC
Previous filing
26 Nov 2025
Next filing
05 Mar 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Howley W Nicholas Director 1350 EUCLID AVE, SUITE 1600, CLEVELAND /s/ Lisa Tortora French as attorney in-fact for W. Nicholas Howley 19 Feb 2026 0001352573

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction TDG Common Stock Options Exercise $517,755 +10,168 +47% $50.92 31,716 18 Feb 2026 W. Nicholas Howley Family Trust u/a/d 4/23/99 F1
transaction TDG Common Stock Sale $1,195,362 -920 -2.9% $1299.31 30,796 18 Feb 2026 W. Nicholas Howley Family Trust u/a/d 4/23/99 F2
transaction TDG Common Stock Sale $39,010 -30 -0.1% $1300.32 30,766 18 Feb 2026 W. Nicholas Howley Family Trust u/a/d 4/23/99 F3
transaction TDG Common Stock Sale $247,207 -190 -0.62% $1301.09 30,576 18 Feb 2026 W. Nicholas Howley Family Trust u/a/d 4/23/99 F4
transaction TDG Common Stock Sale $261,787 -201 -0.66% $1302.42 30,375 18 Feb 2026 W. Nicholas Howley Family Trust u/a/d 4/23/99 F5
transaction TDG Common Stock Sale $730,037 -560 -1.8% $1303.64 29,815 18 Feb 2026 W. Nicholas Howley Family Trust u/a/d 4/23/99 F6
transaction TDG Common Stock Sale $765,735 -587 -2% $1304.49 29,228 18 Feb 2026 W. Nicholas Howley Family Trust u/a/d 4/23/99 F7
transaction TDG Common Stock Sale $555,121 -425 -1.5% $1306.17 28,803 18 Feb 2026 W. Nicholas Howley Family Trust u/a/d 4/23/99 F8
transaction TDG Common Stock Sale $1,372,590 -1,050 -3.6% $1307.23 27,753 18 Feb 2026 W. Nicholas Howley Family Trust u/a/d 4/23/99 F9
transaction TDG Common Stock Sale $1,272,818 -973 -3.5% $1308.14 26,780 18 Feb 2026 W. Nicholas Howley Family Trust u/a/d 4/23/99 F10
transaction TDG Common Stock Sale $1,584,161 -1,210 -4.5% $1309.22 25,570 18 Feb 2026 W. Nicholas Howley Family Trust u/a/d 4/23/99 F11
transaction TDG Common Stock Sale $1,512,412 -1,154 -4.5% $1310.58 24,416 18 Feb 2026 W. Nicholas Howley Family Trust u/a/d 4/23/99 F12
transaction TDG Common Stock Sale $3,589,705 -2,738 -11% $1311.07 21,678 18 Feb 2026 W. Nicholas Howley Family Trust u/a/d 4/23/99 F13
transaction TDG Common Stock Sale $170,565 -130 -0.6% $1312.04 21,548 18 Feb 2026 W. Nicholas Howley Family Trust u/a/d 4/23/99 F14

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 -10,168 -36% $0.000000 18,040 18 Feb 2026 Common Stock 10,168 $50.92 W. Nicholas Howley Family Trust u/a/d 4/23/99
* 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 The exercise price has been adjusted for dividends declared since August 1, 2022.
F2 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,298.9600 - $1,299.8950. 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 $1,300.0000 - $1,300.7000. 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 $1,301.0400 - $1,301.5100. 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 $1,302.1000 - $1,302.7150. 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 $1,303.2100 - $1,304.1700. 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.
F7 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,304.3100 - $1,305.3000. 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 $1,305.6000 - $1,306.3800. 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 $1,306.7200- $1,307.5500. 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.
F10 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,307.8400 - $1,308.6700. 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 $1,308.9400 - $1,309.8000. 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 $1,310.0000 - $1,310.9100. 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 $1,311.0000 - $1,311.8500. 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.
F14 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,312.0000 - $1,312.2400. 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.