TransDigm Group Incorporated — Insider Transactions (Form 4)

TDG

NYSEIndustrialsAerospace & DefenseCIK 0001260221transdigm.comAbout TDG

Last close · Oct 16, 20261,139.34+5.10 (+0.45%)

Market cap$63.0B

Between Sep 15, 2026 and Oct 15, 2026, TransDigm Group (TDG) insiders filed 40 Form 4 transactions: 26 sales worth $5.7M in total and no open-market purchase; 26 of the sales were under 10b5-1 plans set in advance. The largest seller was Reiss Joel, $675,000.5. 14 other filings were grants, exercises or gifts, which say nothing about buying or selling.

Transactions · past year40

Open-market purchases (P)0

Open-market sales (S)26$5.7M

Under a 10b5-1 plan29

Form 4 transactions

Date	Insider	Title	Code	Plan	Shares	Price	Value
2026-10-15	Reiss Joel	Co-Chief Operating Officer	M	10b5-1	4,100	0.00	$0
2026-10-15	Reiss Joel	Co-Chief Operating Officer	S	10b5-1	438	1,135.95	$497,547.9
2026-10-15	Reiss Joel	Co-Chief Operating Officer	S	10b5-1	495	1,135.00	$561,823.4
2026-10-15	Reiss Joel	Co-Chief Operating Officer	S	10b5-1	317	1,133.89	$359,442.1
2026-10-15	Reiss Joel	Co-Chief Operating Officer	S	10b5-1	210	1,132.30	$237,782.7
2026-10-15	Reiss Joel	Co-Chief Operating Officer	S	10b5-1	130	1,131.33	$147,072.5
2026-10-15	Reiss Joel	Co-Chief Operating Officer	S	10b5-1	100	1,130.06	$113,005.6
2026-10-15	Reiss Joel	Co-Chief Operating Officer	S	10b5-1	150	1,129.38	$169,406.7
2026-10-15	Reiss Joel	Co-Chief Operating Officer	S	10b5-1	120	1,127.90	$135,348.2
2026-10-15	Reiss Joel	Co-Chief Operating Officer	S	10b5-1	305	1,127.01	$343,738.5
2026-10-15	Reiss Joel	Co-Chief Operating Officer	S	10b5-1	278	1,125.86	$312,988.9
2026-10-15	Reiss Joel	Co-Chief Operating Officer	S	10b5-1	600	1,125.00	$675,000.5
2026-10-15	Reiss Joel	Co-Chief Operating Officer	S	10b5-1	306	1,124.00	$343,944
2026-10-15	Reiss Joel	Co-Chief Operating Officer	S	10b5-1	131	1,123.09	$147,124.2
2026-10-15	Reiss Joel	Co-Chief Operating Officer	S	10b5-1	60	1,121.58	$67,294.6
2026-10-15	Reiss Joel	Co-Chief Operating Officer	S	10b5-1	30	1,120.30	$33,609.1
2026-10-15	Reiss Joel	Co-Chief Operating Officer	S	10b5-1	100	1,119.01	$111,901.4
2026-10-15	Reiss Joel	Co-Chief Operating Officer	S	10b5-1	60	1,117.11	$67,026.6
2026-10-15	Reiss Joel	Co-Chief Operating Officer	S	10b5-1	50	1,116.02	$55,801.2
2026-10-15	Reiss Joel	Co-Chief Operating Officer	S	10b5-1	100	1,114.82	$111,482.1
2026-10-15	Reiss Joel	Co-Chief Operating Officer	S	10b5-1	100	1,113.58	$111,358.4
2026-10-15	Reiss Joel	Co-Chief Operating Officer	S	10b5-1	20	1,112.27	$22,245.3
2026-10-15	Reiss Joel	Co-Chief Operating Officer	M	10b5-1	4,100	284.97	$1.2M
2026-09-18	SMALL ROBERT J	Director	J		0	0.00	$0
2026-09-18	Palmer Peter	Director	A		34	1,085.00	$36,890
2026-09-18	Howley W Nicholas	Director	A		126	1,085.00	$136,710
2026-09-18	Krasik Irina Igorevna	Director	A		13	1,085.00	$14,105
2026-09-18	SMALL ROBERT J	Director	A		52	1,085.00	$56,420
2026-09-18	Santana Michele	Director	A		34	1,085.00	$36,890
2026-09-18	MCCULLOUGH GARY E	Director	A		41	1,085.00	$44,485
2026-09-18	HENNESSY SEAN P	Director	A		46	1,085.00	$49,910
2026-09-18	Graff Michael	Director	A		34	1,085.00	$36,890
2026-09-18	CRONIN JANE M.	Director	A		34	1,085.00	$36,890
2026-09-18	BARR DAVID	Director	A		46	1,085.00	$49,910
2026-09-15	Reiss Joel	Co-Chief Operating Officer	S	10b5-1	310	1,082.96	$335,718.8
2026-09-15	Reiss Joel	Co-Chief Operating Officer	S	10b5-1	170	1,083.67	$184,224.4
2026-09-15	Reiss Joel	Co-Chief Operating Officer	S	10b5-1	240	1,084.87	$260,368.7
2026-09-15	Reiss Joel	Co-Chief Operating Officer	S	10b5-1	110	1,086.27	$119,490
2026-09-15	Reiss Joel	Co-Chief Operating Officer	S	10b5-1	120	1,087.49	$130,498.7
2026-09-15	Reiss Joel	Co-Chief Operating Officer	M	10b5-1	3,900	284.97	$1.1M

Codes are the SEC's: P open-market purchase, S open-market sale; M exercise, F tax withholding, A grant and G gift are routine. A 10b5-1 flag means the trade ran under a plan adopted in advance. Method notes in where the numbers come from.