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TransDigm Group INC Insider Trading Activity
Every SEC Form 4 insider transaction reported for TransDigm Group INC (TDG), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud Research Team · SEC Form 4 & insider trading data analysts
Last updated:
Quick Answer
Are TDG insiders buying or selling?
TransDigm Group INC insiders reported 33 open-market buys ($487.6M) and 308 sells ($3.7B) across 341 Form 4 filings — a net selling position of $3.2B.
Source: SEC EDGAR Form 4
Key Statistics (as of Aug 19, 2026)
Total Form 4 filings
341
SEC EDGAR
Insider filers
24
Insider buys (33)
$487.6M
Insider sells (308)
$3.7B
Insider sentiment
Net sellingNet insider flow of $3.2B in net selling.
Recent TDG insider transactions
| Date | Insider | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 19, 2026 | Nicholas W Howley | Director | Sale | 10.1K | $1236.28 | $12.5M |
| Aug 18, 2026 | Joel Reiss | Co-Chief Operating Officer | Sale | 3.9K | $1238.76 | $4.8M |
| Jul 21, 2026 | Nicholas W Howley | Director | Sale | 10.1K | $1216.08 | $12.3M |
| Jul 17, 2026 | Joel Reiss | Co-Chief Operating Officer | Sale | 414 | $1231.11 | $509.7K |
| Jul 17, 2026 | Joel Reiss | Co-Chief Operating Officer | Sale | 3.5K | $1216.21 | $4.2M |
| Jun 22, 2026 | Nicholas W Howley | Director | Sale | 10.1K | $1319.55 | $13.4M |
| Jun 22, 2026 | Nicholas W Howley | Director | Sale | 10.1K | $1319.55 | $13.4M |
| Jun 22, 2026 | Nicholas W Howley | Director | Sale | 10.1K | $1319.55 | $13.4M |
| Jun 16, 2026 | Joel Reiss | Co-Chief Operating Officer | Sale | 3.9K | $1276.78 | $5.0M |
| May 19, 2026 | Nicholas W Howley | Director | Sale | 10.1K | $1180.82 | $12.0M |
| May 18, 2026 | Joel Reiss | Co-Chief Operating Officer | Sale | 3.9K | $1154.09 | $4.5M |
| Apr 21, 2026 | Nicholas W Howley | Director | Sale | 10.1K | $1265.06 | $12.8M |
| Apr 16, 2026 | Joel Reiss | Co-Chief Operating Officer | Sale | 3.9K | $1280.46 | $5.0M |
| Mar 19, 2026 | Nicholas W Howley | Director | Sale | 10.1K | $1213.05 | $12.3M |
| Mar 17, 2026 | Joel Reiss | Co-Chief Operating Officer | Sale | 3.9K | $1243.70 | $4.9M |
| Feb 27, 2026 | Robert J Small | Director | Purchase | 1 | $1285.00 | $1.3K |
| Feb 20, 2026 | Nicholas W Howley | Director | Sale | 10.2K | $1307.68 | $13.3M |
| Feb 18, 2026 | Joel Reiss | Co-Chief Operating Officer | Sale | 3.9K | $1293.88 | $5.0M |
| Feb 9, 2026 | Michael Lisman | President & CEO | Purchase | 950 | $1284.26 | $1.2M |
| Feb 3, 2026 | Kevin M Stein | Director | Sale | 11.1K | $1434.49 | $15.9M |
| Feb 3, 2026 | Kevin M Stein | Director | Sale | 36.9K | $1425.79 | $52.6M |
| Feb 3, 2026 | Patrick Joseph Murphy | Co-Chief Operating Officer | Sale | 290 | $1430.10 | $414.7K |
| Jan 16, 2026 | Joel Reiss | Co-Chief Operating Officer | Sale | 3.9K | $1429.92 | $5.6M |
| Jan 16, 2026 | Kevin M Stein | Director | Sale | 7.6K | $1406.38 | $10.7M |
| Jan 9, 2026 | Kevin M Stein | Director | Sale | 17.4K | $1407.25 | $24.4M |
Showing the 25 most recent of 341 Form 4 filings for TransDigm Group INC.
Most active TDG insiders
- Nicholas W Howley104 filings
- Robert J Small41 filings
- Joel Reiss40 filings
- Kevin M Stein40 filings
- Jorge L. Valladares III15 filings
Ask anything about TDG insider activity
Use Trabud's AI agent to query TransDigm Group INC's Form 4 history in plain English — "Show me TDG CEO purchases this year" or compare it against any other ticker.
Open the AI agentTDG insider trading FAQ
Are TransDigm Group INC insiders buying or selling?
Across 341 SEC Form 4 filings, TransDigm Group INC (TDG) insiders reported 33 open-market purchases totaling $487.6M and 308 sales totaling $3.7B. That is a net selling position of $3.2B.
How many insiders trade TDG stock?
24 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for TransDigm Group INC. The most recent filing was accepted on Aug 19, 2026.
Where does Trabud get TDG insider trading data?
All TDG insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.
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