TransDigm Group INC — Director's Dealing 2026

Feb 18, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TransDigm Group INC (TDG)
CIK: 0001260221
Period of Report: 2026-02-17

Reporting Person: Reiss Joel (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-17	Common Stock	M	3900	$284.97	Acquired	7500	Direct
2026-02-17	Common Stock	S	27	$1279.6759	Disposed	7473	Direct
2026-02-17	Common Stock	S	113	$1280.7198	Disposed	7360	Direct
2026-02-17	Common Stock	S	99	$1282.4372	Disposed	7261	Direct
2026-02-17	Common Stock	S	71	$1283.2217	Disposed	7190	Direct
2026-02-17	Common Stock	S	120	$1284.7131	Disposed	7070	Direct
2026-02-17	Common Stock	S	120	$1286.0584	Disposed	6950	Direct
2026-02-17	Common Stock	S	106	$1287.1589	Disposed	6844	Direct
2026-02-17	Common Stock	S	104	$1287.9878	Disposed	6740	Direct
2026-02-17	Common Stock	S	140	$1289.1044	Disposed	6600	Direct
2026-02-17	Common Stock	S	140	$1290.2191	Disposed	6460	Direct
2026-02-17	Common Stock	S	182	$1291.1091	Disposed	6278	Direct
2026-02-17	Common Stock	S	214	$1292.3522	Disposed	6064	Direct
2026-02-17	Common Stock	S	361	$1293.2128	Disposed	5703	Direct
2026-02-17	Common Stock	S	172	$1294.3065	Disposed	5531	Direct
2026-02-17	Common Stock	S	266	$1295.5022	Disposed	5265	Direct
2026-02-17	Common Stock	S	248	$1296.6274	Disposed	5017	Direct
2026-02-17	Common Stock	S	326	$1297.4893	Disposed	4691	Direct
2026-02-17	Common Stock	S	392	$1298.7391	Disposed	4299	Direct
2026-02-17	Common Stock	S	220	$1299.5555	Disposed	4079	Direct
2026-02-17	Common Stock	S	330	$1300.9067	Disposed	3749	Direct
2026-02-17	Common Stock	S	29	$1302.4138	Disposed	3720	Direct
2026-02-17	Common Stock	S	50	$1303.9852	Disposed	3670	Direct
2026-02-17	Common Stock	S	70	$1305.2806	Disposed	3600	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2026-02-17	Stock Option	$284.97	M	3900	Disposed	2027-11-08	Common Stock (3900)	Direct

Footnotes

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.