TDG
TransDigm Group INC
NYSE · Industrials · Aerospace & Defense · US
$1,175.91
+3.46%0
Insider buys (3m)
74
Insider sells (3m)
-$25.6M
Net value (3m)
-5.8%
Price return (3m)
Form 4 filings
| Date | Insider | Activity | Shares | Price |
|---|---|---|---|---|
| Oct 16, 2026 | Reiss Joel · officer: Co-Chief Operating Officer | M-Exempt | 4,100 | $285 |
| Oct 16, 2026 | Reiss Joel · officer: Co-Chief Operating Officer | Sale | 120 | $1.1K |
| Oct 16, 2026 | Reiss Joel · officer: Co-Chief Operating Officer | Sale | 20 | $1.1K |
| Oct 16, 2026 | Reiss Joel · officer: Co-Chief Operating Officer | Sale | 50 | $1.1K |
| Oct 16, 2026 | Reiss Joel · officer: Co-Chief Operating Officer | Sale | 438 | $1.1K |
| Oct 16, 2026 | Reiss Joel · officer: Co-Chief Operating Officer | Sale | 30 | $1.1K |
| Oct 16, 2026 | Reiss Joel · officer: Co-Chief Operating Officer | Sale | 150 | $1.1K |
| Oct 16, 2026 | Reiss Joel · officer: Co-Chief Operating Officer | Sale | 305 | $1.1K |
| Oct 16, 2026 | Reiss Joel · officer: Co-Chief Operating Officer | Sale | 317 | $1.1K |
| Oct 16, 2026 | Reiss Joel · officer: Co-Chief Operating Officer | Sale | 100 | $1.1K |
| Oct 16, 2026 | Reiss Joel · officer: Co-Chief Operating Officer | Sale | 210 | $1.1K |
| Oct 16, 2026 | Reiss Joel · officer: Co-Chief Operating Officer | Sale | 131 | $1.1K |
| Oct 16, 2026 | Reiss Joel · officer: Co-Chief Operating Officer | Sale | 130 | $1.1K |
| Oct 16, 2026 | Reiss Joel · officer: Co-Chief Operating Officer | Sale | 278 | $1.1K |
| Oct 16, 2026 | Reiss Joel · officer: Co-Chief Operating Officer | Sale | 495 | $1.1K |
| Oct 16, 2026 | Reiss Joel · officer: Co-Chief Operating Officer | Sale | 600 | $1.1K |
| Oct 16, 2026 | Reiss Joel · officer: Co-Chief Operating Officer | Sale | 60 | $1.1K |
| Oct 16, 2026 | Reiss Joel · officer: Co-Chief Operating Officer | Sale | 306 | $1.1K |
| Sep 21, 2026 | HENNESSY SEAN P · director | A-Award | 46 | $1.1K |
| Sep 21, 2026 | Santana Michele · director | A-Award | 34 | $1.1K |
| Sep 21, 2026 | MCCULLOUGH GARY E · director | A-Award | 41 | $1.1K |
| Sep 21, 2026 | BARR DAVID · director | A-Award | 46 | $1.1K |
| Sep 21, 2026 | Howley W Nicholas · director | A-Award | 126 | $1.1K |
| Sep 21, 2026 | CRONIN JANE M. · director | A-Award | 34 | $1.1K |
| Sep 21, 2026 | Palmer Peter · director | A-Award | 34 | $1.1K |
| Sep 21, 2026 | Graff Michael · director | A-Award | 34 | $1.1K |
| Sep 21, 2026 | Krasik Irina Igorevna · director | A-Award | 13 | $1.1K |
| Sep 21, 2026 | SMALL ROBERT J · director | A-Award | 52 | $1.1K |
| Sep 16, 2026 | Reiss Joel · officer: Co-Chief Operating Officer | Sale | 110 | $1.1K |
| Sep 16, 2026 | Reiss Joel · officer: Co-Chief Operating Officer | Sale | 120 | $1.1K |
Institutional positioning
13F filings over the trailing two quarters
New 264Increased 888Reduced 789Sold out 111
| Filer | Action | Shares | Filed |
|---|---|---|---|
| CAPITAL INTERNATIONAL INVESTORS | Reduced | 5,494,695 | May 13, 2026 |
| Capital International Investors | Reduced | 5,062,682 | Aug 12, 2026 |
| BlackRock, Inc. | Increased | 4,871,505 | Aug 7, 2026 |
| CAPITAL WORLD INVESTORS | Increased | 4,666,491 | May 13, 2026 |
| BLACKROCK, INC. | Increased | 4,601,252 | May 13, 2026 |
| Capital World Investors | Reduced | 4,274,109 | Aug 12, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 3,669,729 | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | 3,653,511 | Aug 13, 2026 |
| CAPITAL RESEARCH GLOBAL INVESTORS | Increased | 3,143,509 | May 13, 2026 |
| Capital Research Global Investors | Reduced | 3,119,490 | Aug 12, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 2,580,994 | Aug 13, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 2,573,087 | May 8, 2026 |
| STATE STREET CORP | Increased | 2,559,096 | Sep 22, 2026 |
| STATE STREET CORP | Increased | 2,516,606 | May 15, 2026 |
| PRINCIPAL FINANCIAL GROUP INC | Reduced | 2,013,784 | May 4, 2026 |
Insider activity from SEC Form 4; institutional positioning from 13F filings · Latest filing Oct 16, 2026