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TDG TransDigm Group Incorporated

Insider figures are trailing 90 days, open-market Form 4 only. Institutional figures are the latest reported quarter. These windows are not simultaneous.

-$37.6M net selling - trailing 90 days

0 buyers - 3 unique sellers

Historical context: most recent complete month (2026-08) is the 59th percentile of this ticker's monthly net P/S flow over 23 complete months (limited history). Lower percentiles are more selling; higher are more buying.

Institutional activity: not available - insufficient comparable institutions for the latest complete quarter.

open-market Form 4 only - grants, exercises, tax withholding excluded. ~ derived from SEC-reported shares x price.

Insider net $ (monthly)open-market Form 4 only - grants, exercises, tax withholding excluded$200.0M$100.0M$0-$100.0M-$200.0M2024-10 -$11.7M2024-11 -$10.7M2024-12 -$83.2M2025-01 -$36.4M2025-02 -$41.5M2025-03 -$128.5M2025-04 -$37.9M2025-05 -$102.4M2025-06 -$80.5M2025-07 -$8.4M2025-08 -$9.5M2025-09 -$13.5M2025-10 -$8.7M2025-11 -$30.2M2025-12 -$156.3M2026-01 -$75.5M2026-02 -$85.7M2026-03 -$17.1M2026-04 -$17.7M2026-05 -$16.1M2026-06 -$18.3M2026-07 -$16.2M2026-08 -$17.4M2026-09 -$4.0MOct 24Dec 24Feb 25Apr 25Jun 25Aug 25Oct 25Dec 25Feb 26Apr 26Jun 26Aug 26~ derived from SEC-reported shares x price. Hatched: excluded (implausible price) or unpriced.

Institutional activity: not available - insufficient comparable institutions for the latest complete quarter.

Who is responsible

Insider Role Net activity Rows
Howley W Nicholas -~$24.8M 26
Reiss Joel Co-Chief Operating Officer -~$8.7M 43
Reiss Joel Co-Chief Operating Officer -~$4.0M 24

Transactions

Date Insider Role Type Shares Price Value
9/15/2026 Reiss Joel Co-Chief Operating Officer 24 reported sale rows 3680 ~$4.0M
8/18/2026 Howley W Nicholas 14 reported sale rows 10132 ~$12.5M
8/17/2026 Reiss Joel Co-Chief Operating Officer 19 reported sale rows 3900 ~$4.8M
7/20/2026 Howley W Nicholas 12 reported sale rows 10132 ~$12.3M
7/15/2026 Reiss Joel Co-Chief Operating Officer 24 reported sale rows 3180 ~$3.9M
6/18/2026 Howley W Nicholas 66 reported sale rows 30396 ~$40.1M
6/15/2026 Reiss Joel Co-Chief Operating Officer 18 reported sale rows 3900 ~$5.0M
5/18/2026 Howley W Nicholas 22 reported sale rows 9952 ~$11.8M
5/15/2026 Reiss Joel Co-Chief Operating Officer 25 reported sale rows 3780 ~$4.4M
4/20/2026 Howley W Nicholas 10 reported sale rows 10072 ~$12.7M
4/15/2026 Reiss Joel Co-Chief Operating Officer 17 reported sale rows 3900 ~$5.0M
3/18/2026 Howley W Nicholas 23 reported sale rows 10132 ~$12.3M
3/16/2026 Reiss Joel Co-Chief Operating Officer 19 reported sale rows 3900 ~$4.9M
2/25/2026 SMALL ROBERT J P 1 1285 ~$1K
2/18/2026 Howley W Nicholas 13 reported sale rows 10168 ~$13.3M
2/17/2026 Reiss Joel Co-Chief Operating Officer 21 reported sale rows 3640 ~$4.7M
2/6/2026 Lisman Michael President & CEO P 950 1284.2608 ~$1.2M
2/2/2026 Murphy Patrick Joseph Co-Chief Operating Officer S -290 1430.1 ~$0.4M
2/2/2026 Stein Kevin M 31 reported sale rows 47998 ~$68.5M
1/15/2026 Reiss Joel Co-Chief Operating Officer 18 reported sale rows 3900 ~$5.6M
1/14/2026 Stein Kevin M 3 reported sale rows 7627 ~$10.7M
1/8/2026 Stein Kevin M 7 reported sale rows 17373 ~$24.4M
1/5/2026 Stein Kevin M 21 reported sale rows 25000 ~$34.3M
1/2/2026 Murphy Patrick Joseph Co-Chief Operating Officer S -290 1329.03 ~$0.4M
12/15/2025 Reiss Joel Co-Chief Operating Officer 23 reported sale rows 3440 ~$4.4M
12/10/2025 SMALL ROBERT J 3 reported sale rows 4700 ~$6.1M
12/9/2025 SMALL ROBERT J 2 reported sale rows 90953 ~$121.5M
12/4/2025 Stein Kevin M 8 reported sale rows 17526 ~$23.9M
12/1/2025 Murphy Patrick Joseph Co-Chief Operating Officer S -290 1351.06 ~$0.4M
11/28/2025 Stein Kevin M 3 reported sale rows 4592 ~$6.2M
11/26/2025 Stein Kevin M S -30 1360.06 ~$41K
11/25/2025 Stein Kevin M 2 reported sale rows 4187 ~$5.7M
11/21/2025 Stein Kevin M S -230 1360.3096 ~$0.3M
11/20/2025 Stein Kevin M 3 reported sale rows 1104 ~$1.5M
11/18/2025 Stein Kevin M 5 reported sale rows 7191 ~$9.8M
11/17/2025 Reiss Joel Co-Chief Operating Officer 24 reported sale rows 3890 ~$5.2M
11/17/2025 Howley W Nicholas 14 reported sale rows 2736 ~$3.7M
11/14/2025 Lisman Michael President & CEO 6 reported purchase rows 1954 ~$2.6M
11/3/2025 Murphy Patrick Joseph Co-Chief Operating Officer S -290 1310 ~$0.4M
10/27/2025 Stein Kevin M S -700 1360 ~$1.0M
10/27/2025 Murphy Patrick Joseph Co-Chief Operating Officer S -580 1354.76 ~$0.8M
10/20/2025 Reiss Joel Co-Chief Operating Officer 8 reported sale rows 2800 ~$3.6M
10/15/2025 Howley W Nicholas 10 reported sale rows 2634 ~$3.4M
9/22/2025 Reiss Joel Co-Chief Operating Officer 8 reported sale rows 3000 ~$3.8M
9/15/2025 Howley W Nicholas 10 reported sale rows 2586 ~$3.3M
9/12/2025 SMALL ROBERT J 14 reported sale rows 5000 ~$6.4M
8/26/2025 Graff Michael 5 reported sale rows 1760 ~$2.5M
8/20/2025 Reiss Joel Co-Chief Operating Officer 10 reported sale rows 2800 ~$3.9M
8/15/2025 Howley W Nicholas 9 reported sale rows 2233 ~$3.1M
7/21/2025 Reiss Joel Co-Chief Operating Officer 11 reported sale rows 2600 ~$4.2M
7/15/2025 Howley W Nicholas 9 reported sale rows 2736 ~$4.3M
6/20/2025 Reiss Joel Co-Chief Operating Officer 11 reported sale rows 3000 ~$4.3M
6/16/2025 Howley W Nicholas 8 reported sale rows 2636 ~$3.8M
6/13/2025 Wynne Sarah Chief Financial Officer S -1800 1450 ~$2.6M
6/12/2025 Wynne Sarah Chief Financial Officer 3 reported sale rows 3200 ~$4.6M
6/10/2025 SMALL ROBERT J 2 reported sale rows 45700 ~$65.1M
5/20/2025 Reiss Joel Co-Chief Operating Officer 6 reported sale rows 3000 ~$4.3M
5/20/2025 HENNESSY SEAN P 5 reported sale rows 4700 ~$6.8M
5/15/2025 Howley W Nicholas 7 reported sale rows 2736 ~$3.8M
5/14/2025 Valladares III Jorge L. 3 reported sale rows 3783 ~$5.3M
5/13/2025 Valladares III Jorge L. 12 reported sale rows 6217 ~$8.9M
5/13/2025 Warren Jessica L GC, CCO, Secretary S -490 1425 ~$0.7M
5/5/2025 Howley W Nicholas 5 reported sale rows 49241 ~$72.7M
4/21/2025 Reiss Joel Co-Chief Operating Officer 12 reported sale rows 3000 ~$4.0M
4/15/2025 Howley W Nicholas 12 reported sale rows 5472 ~$7.4M
4/14/2025 Stein Kevin M President & CEO 18 reported sale rows 20000 ~$26.6M
3/20/2025 Reiss Joel Co-Chief Operating Officer 11 reported sale rows 3000 ~$4.1M
3/17/2025 Howley W Nicholas 12 reported sale rows 5472 ~$7.4M
3/14/2025 SMALL ROBERT J 6 reported sale rows 9034 ~$12.1M
3/13/2025 SMALL ROBERT J 2 reported sale rows 1000 ~$1.3M
3/12/2025 Stein Kevin M President & CEO 13 reported sale rows 19800 ~$26.0M
3/10/2025 SMALL ROBERT J 8 reported sale rows 15500 ~$20.7M
3/7/2025 SMALL ROBERT J 8 reported sale rows 17000 ~$22.8M
3/6/2025 SMALL ROBERT J 8 reported sale rows 25000 ~$33.6M
3/4/2025 Warren Jessica L GC, CCO, Secretary 4 reported sale rows 275 ~$0.4M
2/20/2025 Reiss Joel Co-Chief Operating Officer 12 reported sale rows 3000 ~$4.0M
2/18/2025 Howley W Nicholas 11 reported sale rows 5472 ~$7.2M
2/14/2025 SMALL ROBERT J 12 reported sale rows 3478 ~$4.6M
2/12/2025 Stein Kevin M President & CEO 24 reported sale rows 19042 ~$25.8M
1/21/2025 Reiss Joel Co-Chief Operating Officer 9 reported sale rows 2950 ~$4.0M
1/15/2025 Howley W Nicholas 20 reported sale rows 5472 ~$7.1M
1/13/2025 Stein Kevin M President & CEO 13 reported sale rows 20000 ~$25.3M
12/20/2024 Reiss Joel Co-Chief Operating Officer 8 reported sale rows 3000 ~$3.8M
12/16/2024 Howley W Nicholas 15 reported sale rows 5472 ~$7.0M
12/12/2024 Stein Kevin M President & CEO 15 reported sale rows 20000 ~$25.0M
12/12/2024 SMALL ROBERT J 4 reported sale rows 38053 ~$47.5M
11/20/2024 Reiss Joel Co-Chief Operating Officer 8 reported sale rows 3000 ~$3.8M
11/15/2024 Howley W Nicholas 17 reported sale rows 5472 ~$6.9M
10/15/2024 Reiss Joel Co-Chief Operating Officer 8 reported sale rows 2900 ~$4.1M
10/15/2024 Howley W Nicholas 11 reported sale rows 5472 ~$7.7M
9/16/2024 Reiss Joel Co-Chief Operating Officer 9 reported sale rows 2700 ~$3.7M
9/16/2024 Howley W Nicholas 12 reported sale rows 5472 ~$7.5M