16 insiders reported 903 Form 4 transactions for TransDigm Group INC (TDG) over the past 18 months (most recent 2026-08-19). Recent activity: Howley W Nicholas (Director) Sell 204 shares, Howley W Nicholas (Director) Sell 190 shares, Howley W Nicholas (Director) Sell 70 shares, Howley W Nicholas (Director) Sell 290 shares, Howley W Nicholas (Director) Sell 570 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-19 | Howley W Nicholas | Director | Sell | 204 | $250,023 |
| 2026-08-19 | Howley W Nicholas | Director | Sell | 190 | $235,816 |
| 2026-08-19 | Howley W Nicholas | Director | Sell | 70 | $85,934 |
| 2026-08-19 | Howley W Nicholas | Director | Sell | 290 | $356,437 |
| 2026-08-19 | Howley W Nicholas | Director | Sell | 570 | $701,111 |
| 2026-08-19 | Howley W Nicholas | Director | Sell | 830 | $1.0M |
| 2026-08-19 | Howley W Nicholas | Director | Sell | 1,055 | $1.3M |
| 2026-08-19 | Howley W Nicholas | Director | Buy | 10,132 | $673,474 |
| 2026-08-19 | Howley W Nicholas | Director | Sell | 270 | $333,366 |
| 2026-08-19 | Howley W Nicholas | Director | Sell | 140 | $173,057 |
| 2026-08-19 | Howley W Nicholas | Director | Sell | 250 | $309,224 |
| 2026-08-19 | Howley W Nicholas | Director | Sell | 520 | $643,803 |
| 2026-08-19 | Howley W Nicholas | Director | Sell | 3,980 | $4.9M |
| 2026-08-19 | Howley W Nicholas | Director | Sell | 1,313 | $1.6M |
| 2026-08-19 | Howley W Nicholas | Director | Sell | 450 | $554,987 |
| 2026-08-18 | Reiss Joel | Co-Chief Operating Officer | Buy | 3,900 | $1.1M |
| 2026-08-18 | Reiss Joel | Co-Chief Operating Officer | Sell | 140 | $172,594 |
| 2026-08-18 | Reiss Joel | Co-Chief Operating Officer | Sell | 260 | $320,806 |
| 2026-08-18 | Reiss Joel | Co-Chief Operating Officer | Sell | 120 | $148,893 |
| 2026-08-18 | Reiss Joel | Co-Chief Operating Officer | Sell | 327 | $403,821 |
| 2026-08-18 | Reiss Joel | Co-Chief Operating Officer | Sell | 671 | $829,892 |
| 2026-08-18 | Reiss Joel | Co-Chief Operating Officer | Sell | 499 | $617,696 |
| 2026-08-18 | Reiss Joel | Co-Chief Operating Officer | Sell | 340 | $421,204 |
| 2026-08-18 | Reiss Joel | Co-Chief Operating Officer | Sell | 400 | $495,997 |
| 2026-08-18 | Reiss Joel | Co-Chief Operating Officer | Sell | 373 | $460,975 |
Source: SEC Form 4 filings · as of 2026-08-19