TransDigm Group INC (TDG) has 570 open-market insider trades by 44 insiders since 2006. Over the last six months insiders net sold $91.0M. The most active filer is W. Nicholas Howley, Director.
| Name | Title | Tier | Trades | Value | Last Trade |
|---|---|---|---|---|---|
| Robert J. Small | Dir | — | 81 | $4.2B | 2026-02-25 |
| W. Nicholas Howley | Dir | — | 150 | $1.4B | 2026-09-18 |
| Kevin M. Stein | Dir | — | 41 | $655.5M | 2026-02-02 |
| Michael Graff | Dir | — | 22 | $485.7M | 2026-09-18 |
| David Barr | Dir | — | 4 | $452.8M | 2026-03-20 |
| Group Holdings Llc Td | 10% | — | 2 | $434.8M | 2009-03-23 |
| Kewsong Lee | Dir | — | 2 | $359.7M | 2007-12-10 |
| Kevin Kruse | Dir | — | 2 | $359.7M | 2007-12-10 |
| Robert S. Henderson | VP | — | 36 | $215.8M | 2021-11-01 |
| Joel Reiss | COO | — | 44 | $171.6M | 2026-10-15 |
| Insider | Title | Type | Value | Date |
|---|---|---|---|---|
| Joel Reiss | COO | Sell | $4.6M | 2026-10-15 |
| Joel Reiss | COO | Sell | $4.3M | 2026-09-15 |
| W. Nicholas Howley | Director | Sell | $12.5M | 2026-08-18 |
| Joel Reiss | COO | Sell | $4.8M | 2026-08-17 |
| W. Nicholas Howley | Director | Sell | $12.3M | 2026-07-20 |
| Joel Reiss | COO | Sell | $4.2M | 2026-07-15 |
Companies that share insiders with TDG, and sector peers with recent insider buying. Related by who files, not by how the stocks move.
| Joel Reiss | COO | Sell | $510K | 2026-07-15 |
| W. Nicholas Howley | Director | Sell | $13.4M | 2026-06-18 |
| Joel Reiss | COO | Sell | $5.0M | 2026-06-15 |
| W. Nicholas Howley | Director | Sell | $12.0M | 2026-05-18 |
| Joel Reiss | COO | Sell | $4.5M | 2026-05-15 |
| W. Nicholas Howley | Director | Sell | $12.8M | 2026-04-20 |
| Joel Reiss | COO | Sell | $5.0M | 2026-04-15 |
| W. Nicholas Howley | Director | Sell | $24.5M | 2026-03-18 |
| Joel Reiss | COO | Sell | $9.7M | 2026-03-16 |