There have been 50 recent insider transactions recorded for TransDigm Group Incorporated (TDG), including 18 buys and 26 sells. Total insider buying was valued at $7.13M and total insider selling at $36.88M.
Notable insiders with recent activity include Vadiee Armani, Palmer Peter, Murphy Patrick Joseph. Insider transactions can provide insights into how company leadership views the stock's valuation and future prospects.
Insider Transactions — TDG
| Date |
Name |
Role |
Transaction |
Shares |
Avg. Price |
Value |
Shares Owned |
| 2028-09-30 |
Vadiee Armani |
Gc, Cco, Secretary |
Unknown |
1,850 |
$1,302.30 |
$2.41M |
- |
| 2027-09-30 |
Palmer Peter |
Director |
Unknown |
4,730 |
$869.73 |
$4.11M |
- |
| 2026-09-30 |
Murphy Patrick Joseph |
Co-chief Operating Officer |
Unknown |
6,500 |
$582.80 |
$3.79M |
- |
| 2026-09-30 |
Vadiee Armani |
Gc, Cco, Secretary |
Unknown |
3,850 |
$582.80 |
$2.24M |
- |
| 2026-09-30 |
Palmer Peter |
Director |
Unknown |
2,600 |
$582.80 |
$1.52M |
- |
| 2026-03-20 |
Mccullough Gary E |
Director |
RSU Award |
37 |
$1,214.66 |
$44.94K |
952 |
| 2026-03-20 |
Hennessy Sean P |
Director |
RSU Award |
41 |
$1,214.66 |
$49.8K |
33,790 |
| 2026-03-20 |
Barr David |
Director |
RSU Award |
41 |
$1,214.66 |
$49.8K |
32,179 |
| 2026-03-20 |
Graff Michael |
Director |
RSU Award |
30 |
$1,214.66 |
$36.44K |
1,683 |
| 2026-03-20 |
Howley W Nicholas |
Director |
RSU Award |
113 |
$1,214.66 |
$137.26K |
113 |
| 2026-03-20 |
Palmer Peter |
Director |
RSU Award |
30 |
$1,214.66 |
$36.44K |
4,030 |
| 2026-03-20 |
Santana Michele |
Director |
RSU Award |
30 |
$1,214.66 |
$36.44K |
771 |
| 2026-03-20 |
Cronin Jane M. |
Director |
RSU Award |
30 |
$1,214.66 |
$36.44K |
700 |
| 2026-03-18 |
Howley W Nicholas |
Director |
Option Exercise (Sell) |
10,132 |
$50.92 |
$515.92K |
7,908 |
| 2026-03-16 |
Reiss Joel |
Co-chief Operating Officer |
Informative Sell |
187 |
$1,250.25 |
$233.8K |
3,600 |
| 2026-02-25 |
Small Robert J |
Director |
Informative Buy |
1 |
$1,285.00 |
$1.29K |
366,142 |
| 2026-02-24 |
Murphy Patrick Joseph |
Co-chief Operating Officer |
Option Exercise (Sell) |
1,160 |
$269.42 |
$312.53K |
- |
| 2026-02-18 |
Howley W Nicholas |
Director |
Option Exercise (Sell) |
10,168 |
$50.92 |
$517.75K |
18,040 |
| 2026-02-17 |
Reiss Joel |
Co-chief Operating Officer |
Informative Sell |
70 |
$1,305.28 |
$91.37K |
3,600 |
| 2026-02-06 |
Lisman Michael |
President & CEO |
Informative Buy |
950 |
$1,284.26 |
$1.22M |
3,259 |
| 2026-02-05 |
Wynne Sarah |
Chief Financial Officer |
Option Exercise (Sell) |
1,494 |
$559.78 |
$836.31K |
3,506 |
| 2026-02-02 |
Stein Kevin M |
Director |
Option Exercise (Sell) |
25,000 |
$341.28 |
$8.53M |
17,940 |
| 2026-02-02 |
Murphy Patrick Joseph |
Co-chief Operating Officer |
Informative Sell |
290 |
$1,430.10 |
$414.73K |
1,055 |
| 2026-01-15 |
Reiss Joel |
Co-chief Operating Officer |
Informative Sell |
40 |
$1,438.91 |
$57.56K |
3,600 |
| 2026-01-14 |
Stein Kevin M |
Director |
Informative Sell |
1,522 |
$1,407.34 |
$2.14M |
8,158 |
| 2026-01-08 |
Stein Kevin M |
Director |
Informative Sell |
340 |
$1,413.17 |
$480.48K |
8,158 |
| 2026-01-05 |
Stein Kevin M |
Director |
Informative Sell |
300 |
$1,387.04 |
$416.11K |
8,158 |
| 2026-01-02 |
Murphy Patrick Joseph |
Co-chief Operating Officer |
Informative Sell |
290 |
$1,329.03 |
$385.42K |
1,055 |
| 2025-12-15 |
Reiss Joel |
Co-chief Operating Officer |
Informative Sell |
30 |
$1,311.25 |
$39.34K |
3,600 |
| 2025-12-10 |
Small Robert J |
Director |
Option Exercise (Sell) |
4,700 |
$66.47 |
$312.41K |
- |
| 2025-12-09 |
Small Robert J |
Director |
Informative Sell |
15,280 |
$1,335.72 |
$20.41M |
68,139 |
| 2025-12-04 |
Stein Kevin M |
Director |
Informative Sell |
30 |
$1,367.22 |
$41.02K |
8,158 |
| 2025-12-01 |
Murphy Patrick Joseph |
Co-chief Operating Officer |
Informative Sell |
290 |
$1,351.06 |
$391.81K |
1,055 |
| 2025-11-28 |
Stein Kevin M |
Director |
Informative Sell |
50 |
$1,362.43 |
$68.12K |
8,158 |
| 2025-11-26 |
Stein Kevin M |
Director |
Informative Sell |
30 |
$1,360.06 |
$40.8K |
8,158 |
| 2025-11-25 |
Stein Kevin M |
Director |
Informative Sell |
90 |
$1,361.87 |
$122.57K |
8,158 |
| 2025-11-21 |
Stein Kevin M |
Director |
Informative Sell |
230 |
$1,360.31 |
$312.87K |
8,158 |
| 2025-11-21 |
Graff Michael |
Director |
Gift (Given) |
340 |
- |
- |
1,653 |
| 2025-11-20 |
Stein Kevin M |
Director |
Informative Sell |
49 |
$1,363.22 |
$66.8K |
8,158 |
| 2025-11-18 |
Stein Kevin M |
Director |
Informative Sell |
70 |
$1,364.58 |
$95.52K |
8,158 |
| 2025-11-17 |
Howley W Nicholas |
Director |
Informative Sell |
20 |
$1,348.07 |
$26.96K |
21,548 |
| 2025-11-17 |
Reiss Joel |
Co-chief Operating Officer |
Informative Sell |
10 |
$1,353.92 |
$13.54K |
3,600 |
| 2025-11-14 |
Lisman Michael |
President & CEO |
Informative Buy |
600 |
$1,334.13 |
$800.48K |
600 |
| 2025-11-04 |
Mccullough Gary E |
Director |
RSU Award |
518 |
$1,291.97 |
$669.24K |
518 |
| 2025-11-04 |
Hennessy Sean P |
Director |
RSU Award |
518 |
$1,291.97 |
$669.24K |
518 |
| 2025-11-04 |
Small Robert J |
Director |
RSU Award |
518 |
$1,291.97 |
$669.24K |
518 |
| 2025-11-04 |
Barr David |
Director |
RSU Award |
518 |
$1,291.97 |
$669.24K |
518 |
| 2025-11-04 |
Graff Michael |
Director |
RSU Award |
518 |
$1,291.97 |
$669.24K |
518 |
| 2025-11-04 |
Howley W Nicholas |
Director |
RSU Award |
518 |
$1,291.97 |
$669.24K |
518 |
| 2025-11-04 |
Stein Kevin M |
Director |
RSU Award |
518 |
$1,291.97 |
$669.24K |
518 |
■ Informative Buy/Sell — open market transaction (most significant)
■ Uninformative Buy — award, option exercise, conversion
■ Uninformative Sell — tax withholding, award vest sale
■ Neutral — gift, trust, expiry
