TransDigm Group (TDG) — insider trading
Industrials · NYSE
TransDigm Group (TDG) has 310 reported SEC Form 4 insider transactions in our data, including 79 open-market sales among the most recent 100 (latest 2026-09-18).
Recent Form 4 transactions
Showing the 100 most recent of 310 recorded transactions. See all on SEC EDGAR →
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-09-18 | SMALL ROBERT J | Director | Other acquisition or disposition | 0 | — | $0 | Form 4/A |
| 2026-09-18 | Santana Michele | Director | Grant / award / vesting | 34 | $1,085.00 | $36.9K | Form 4 |
| 2026-09-18 | SMALL ROBERT J | Director | Grant / award / vesting | 52 | $1,085.00 | $56.4K | Form 4 |
| 2026-09-18 | Palmer Peter | Director | Grant / award / vesting | 34 | $1,085.00 | $36.9K | Form 4 |
| 2026-09-18 | MCCULLOUGH GARY E | Director | Grant / award / vesting | 41 | $1,085.00 | $44.5K | Form 4 |
| 2026-09-18 | Krasik Irina Igorevna | Director | Grant / award / vesting | 13 | $1,085.00 | $14.1K | Form 4 |
| 2026-09-18 | Howley W Nicholas | Director | Grant / award / vesting | 126 | $1,085.00 | $136.7K | Form 4 |
| 2026-09-18 | HENNESSY SEAN P | Director | Grant / award / vesting | 46 | $1,085.00 | $49.9K | Form 4 |
| 2026-09-18 | Graff Michael | Director | Grant / award / vesting | 34 | $1,085.00 | $36.9K | Form 4 |
| 2026-09-18 | CRONIN JANE M. | Director | Grant / award / vesting | 34 | $1,085.00 | $36.9K | Form 4 |
| 2026-09-18 | BARR DAVID | Director | Grant / award / vesting | 46 | $1,085.00 | $49.9K | Form 4 |
| 2026-09-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Option exercise / conversion (derivative) | 3,900 | — | $0 | Form 4 |
| 2026-09-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 20 | $1,119.00 | $22.4K | Form 4 |
| 2026-09-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 20 | $1,113.37 | $22.3K | Form 4 |
| 2026-09-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 30 | $1,112.38 | $33.4K | Form 4 |
| 2026-09-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 30 | $1,108.34 | $33.3K | Form 4 |
| 2026-09-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 40 | $1,106.69 | $44.3K | Form 4 |
| 2026-09-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 5 | $1,105.28 | $5.5K | Form 4 |
| 2026-09-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 125 | $1,104.58 | $138.1K | Form 4 |
| 2026-09-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 210 | $1,103.44 | $231.7K | Form 4 |
| 2026-09-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 274 | $1,102.49 | $302.1K | Form 4 |
| 2026-09-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 166 | $1,101.52 | $182.9K | Form 4 |
| 2026-09-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 60 | $1,100.41 | $66.0K | Form 4 |
| 2026-09-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 90 | $1,099.14 | $98.9K | Form 4 |
| 2026-09-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 150 | $1,098.41 | $164.8K | Form 4 |
| 2026-09-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 294 | $1,097.26 | $322.6K | Form 4 |
| 2026-09-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 196 | $1,096.17 | $214.8K | Form 4 |
| 2026-09-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 225 | $1,095.11 | $246.4K | Form 4 |
| 2026-09-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 383 | $1,094.06 | $419.0K | Form 4 |
| 2026-09-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 282 | $1,093.10 | $308.3K | Form 4 |
| 2026-09-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 170 | $1,092.13 | $185.7K | Form 4 |
| 2026-09-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 100 | $1,091.00 | $109.1K | Form 4 |
| 2026-09-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 70 | $1,090.06 | $76.3K | Form 4 |
| 2026-09-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 10 | $1,088.06 | $10.9K | Form 4 |
| 2026-09-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 120 | $1,087.49 | $130.5K | Form 4 |
| 2026-09-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 110 | $1,086.27 | $119.5K | Form 4 |
| 2026-09-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 240 | $1,084.87 | $260.4K | Form 4 |
| 2026-09-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 170 | $1,083.67 | $184.2K | Form 4 |
| 2026-09-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 310 | $1,082.96 | $335.7K | Form 4 |
| 2026-09-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Option exercise / conversion | 3,900 | $284.97 | $1.11M | Form 4 |
| 2026-08-18 | Howley W Nicholas | Director | Option exercise / conversion (derivative) | 10,132 | — | $0 | Form 4 |
| 2026-08-18 | Howley W Nicholas | Director | Open-market sale | 190 | $1,241.14 | $235.8K | Form 4 |
| 2026-08-18 | Howley W Nicholas | Director | Open-market sale | 1,313 | $1,240.42 | $1.63M | Form 4 |
| 2026-08-18 | Howley W Nicholas | Director | Open-market sale | 3,980 | $1,239.17 | $4.93M | Form 4 |
| 2026-08-18 | Howley W Nicholas | Director | Open-market sale | 520 | $1,238.08 | $643.8K | Form 4 |
| 2026-08-18 | Howley W Nicholas | Director | Open-market sale | 250 | $1,236.89 | $309.2K | Form 4 |
| 2026-08-18 | Howley W Nicholas | Director | Open-market sale | 140 | $1,236.12 | $173.1K | Form 4 |
| 2026-08-18 | Howley W Nicholas | Director | Open-market sale | 270 | $1,234.69 | $333.4K | Form 4 |
| 2026-08-18 | Howley W Nicholas | Director | Open-market sale | 450 | $1,233.30 | $555.0K | Form 4 |
| 2026-08-18 | Howley W Nicholas | Director | Open-market sale | 1,055 | $1,232.01 | $1.30M | Form 4 |
| 2026-08-18 | Howley W Nicholas | Director | Open-market sale | 830 | $1,231.12 | $1.02M | Form 4 |
| 2026-08-18 | Howley W Nicholas | Director | Open-market sale | 570 | $1,230.02 | $701.1K | Form 4 |
| 2026-08-18 | Howley W Nicholas | Director | Open-market sale | 290 | $1,229.09 | $356.4K | Form 4 |
| 2026-08-18 | Howley W Nicholas | Director | Open-market sale | 70 | $1,227.62 | $85.9K | Form 4 |
| 2026-08-18 | Howley W Nicholas | Director | Open-market sale | 204 | $1,225.60 | $250.0K | Form 4 |
| 2026-08-18 | Howley W Nicholas | Director | Option exercise / conversion | 10,132 | $66.47 | $673.5K | Form 4 |
| 2026-08-17 | Reiss Joel | Officer (Co-Chief Operating Officer) | Option exercise / conversion (derivative) | 3,900 | — | $0 | Form 4 |
| 2026-08-17 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 30 | $1,253.08 | $37.6K | Form 4 |
| 2026-08-17 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 80 | $1,252.11 | $100.2K | Form 4 |
| 2026-08-17 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 20 | $1,250.82 | $25.0K | Form 4 |
| 2026-08-17 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 60 | $1,248.26 | $74.9K | Form 4 |
| 2026-08-17 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 48 | $1,247.31 | $59.9K | Form 4 |
| 2026-08-17 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 37 | $1,245.90 | $46.1K | Form 4 |
| 2026-08-17 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 145 | $1,245.29 | $180.6K | Form 4 |
| 2026-08-17 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 100 | $1,243.91 | $124.4K | Form 4 |
| 2026-08-17 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 138 | $1,243.03 | $171.5K | Form 4 |
| 2026-08-17 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 112 | $1,242.28 | $139.1K | Form 4 |
| 2026-08-17 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 120 | $1,240.78 | $148.9K | Form 4 |
| 2026-08-17 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 400 | $1,239.99 | $496.0K | Form 4 |
| 2026-08-17 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 340 | $1,238.84 | $421.2K | Form 4 |
| 2026-08-17 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 499 | $1,237.87 | $617.7K | Form 4 |
| 2026-08-17 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 671 | $1,236.80 | $829.9K | Form 4 |
| 2026-08-17 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 373 | $1,235.86 | $461.0K | Form 4 |
| 2026-08-17 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 327 | $1,234.93 | $403.8K | Form 4 |
| 2026-08-17 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 260 | $1,233.87 | $320.8K | Form 4 |
| 2026-08-17 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 140 | $1,232.82 | $172.6K | Form 4 |
| 2026-08-17 | Reiss Joel | Officer (Co-Chief Operating Officer) | Option exercise / conversion | 3,900 | $284.97 | $1.11M | Form 4 |
| 2026-07-20 | Howley W Nicholas | Director | Option exercise / conversion (derivative) | 10,132 | — | $0 | Form 4 |
| 2026-07-20 | Howley W Nicholas | Director | Open-market sale | 440 | $1,224.14 | $538.6K | Form 4 |
| 2026-07-20 | Howley W Nicholas | Director | Open-market sale | 465 | $1,222.32 | $568.4K | Form 4 |
| 2026-07-20 | Howley W Nicholas | Director | Open-market sale | 130 | $1,220.57 | $158.7K | Form 4 |
| 2026-07-20 | Howley W Nicholas | Director | Open-market sale | 1,243 | $1,219.48 | $1.52M | Form 4 |
| 2026-07-20 | Howley W Nicholas | Director | Open-market sale | 1,463 | $1,218.58 | $1.78M | Form 4 |
| 2026-07-20 | Howley W Nicholas | Director | Open-market sale | 603 | $1,217.01 | $733.9K | Form 4 |
| 2026-07-20 | Howley W Nicholas | Director | Open-market sale | 260 | $1,215.62 | $316.1K | Form 4 |
| 2026-07-20 | Howley W Nicholas | Director | Open-market sale | 1,561 | $1,214.74 | $1.90M | Form 4 |
| 2026-07-20 | Howley W Nicholas | Director | Open-market sale | 1,437 | $1,213.88 | $1.74M | Form 4 |
| 2026-07-20 | Howley W Nicholas | Director | Open-market sale | 1,720 | $1,212.73 | $2.09M | Form 4 |
| 2026-07-20 | Howley W Nicholas | Director | Open-market sale | 240 | $1,211.46 | $290.7K | Form 4 |
| 2026-07-20 | Howley W Nicholas | Director | Open-market sale | 570 | $1,210.32 | $689.9K | Form 4 |
| 2026-07-20 | Howley W Nicholas | Director | Option exercise / conversion | 10,132 | $66.47 | $673.5K | Form 4 |
| 2026-07-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Option exercise / conversion (derivative) | 3,900 | — | $0 | Form 4/A |
| 2026-07-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Option exercise / conversion (derivative) | 3,900 | — | $0 | Form 4 |
| 2026-07-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 90 | $1,228.79 | $110.6K | Form 4 |
| 2026-07-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 210 | $1,227.82 | $257.8K | Form 4 |
| 2026-07-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 40 | $1,226.98 | $49.1K | Form 4 |
| 2026-07-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 153 | $1,225.62 | $187.5K | Form 4 |
| 2026-07-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 509 | $1,224.62 | $623.3K | Form 4 |
| 2026-07-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 138 | $1,223.51 | $168.8K | Form 4 |
| 2026-07-15 | Reiss Joel | Officer (Co-Chief Operating Officer) | Open-market sale | 60 | $1,222.60 | $73.4K | Form 4 |
Ask the chat about TDG's insider activity →
Transaction types are the SEC Form 4 codes: open-market purchases (P) and sales (S) are the only rows that reflect open-market conviction. Awards/vesting (A), option exercises (M/X/C), shares withheld for taxes (F) and gifts (G) are compensation or mechanical, not buying or selling on the open market. Sales may be planned and non-discretionary (e.g. a Rule 10b5-1 plan); open-market buying is not a recommendation to buy. Informational only — not financial advice.
Source: SEC EDGAR Form 3/4/5. See the full company profile: TransDigm Group (TDG).
Last updated 2026-09-18 (most recent filing date).
Informational only — NOT financial advice. Insider filings are sourced from SEC EDGAR and shown with their reported dates.