TDG insider buying
1 cluster buyTransDigm Group INC · Industrials
When two or more insiders at TransDigm Group INC buy TDG on the open market around the same time, that clustered conviction is one of the highest-signal patterns in SEC filing data. Below is every cluster we've detected in TDG plus the full record of qualifying open-market buys, each parsed directly from Form 4 filings and linked back to the source on SEC EDGAR.
Detected clusters
- Nov 14, 2025 – Feb 25, 2026Detected Feb 25, 2026High conviction2 insidersTotal bought$3.8MMarket cap$75.3B
All notable open-market buys in TDG
Every open-market Form 4 purchase, newest first. Click an insider to see their full buying record across companies.
| Date | Insider | Shares | Price | Value | Filing |
|---|---|---|---|---|---|
| Feb 25, 2026 | SMALL ROBERT Jcluster Director | 1 | $1,285.00 | $1.3K | SEC ↗ |
| Feb 6, 2026 | Lisman Michaelcluster Director, President & CEO | 950 | $1,284.26 | $1.2M | SEC ↗ |
| Nov 14, 2025 | Lisman Michaelcluster Director, President & CEO | 600 | $1,334.13 | $800.5K | SEC ↗ |
| Nov 14, 2025 | Lisman Michaelcluster Director, President & CEO | 521 | $1,341.49 | $698.9K | SEC ↗ |
| Nov 14, 2025 | Lisman Michaelcluster Director, President & CEO | 384 | $1,342.93 | $515.7K | SEC ↗ |
| Nov 14, 2025 | Lisman Michaelcluster Director, President & CEO | 290 | $1,338.56 | $388.2K | SEC ↗ |
| Nov 14, 2025 | Lisman Michaelcluster Director, President & CEO | 104 | $1,344.76 | $139.9K | SEC ↗ |
| Jan 22, 2024 | Director | 0.48 | $1,065.40 | $511.4 | SEC ↗ |
| Jul 10, 2023 | Director | 1 | $883.30 | $883.3 | SEC ↗ |
| Mar 24, 2023 | Director | 1 | $692.90 | $692.9 | SEC ↗ |
| Jan 24, 2023 | Director | 10 | $684.64 | $6.8K | SEC ↗ |
| Dec 23, 2022 | Director | 1 | $619.54 | $619.5 | SEC ↗ |
| Apr 4, 2022 | Director | 1 | $668.88 | $668.9 | SEC ↗ |
| Dec 31, 2021 | Director | 1 | $634.26 | $634.3 | SEC ↗ |
| May 24, 2021 | Director | 1 | $616.46 | $616.5 | SEC ↗ |
| Oct 1, 2020 | Director | 4 | $482.93 | $1.9K | SEC ↗ |
| Jul 28, 2020 | Director | 1 | $432.19 | $432.2 | SEC ↗ |
| May 4, 2020 | Director | 1 | $328.53 | $328.5 | SEC ↗ |
| Feb 28, 2020 | Director | 8 | $532.47 | $4.3K | SEC ↗ |
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TDG insider buying — FAQ
- Are insiders buying TDG stock?
- Yes — 4 distinct insiders have bought TDG (TransDigm Group INC) on the open market, including 1 cluster buy where two or more insiders bought within a rolling window. The most recent qualifying activity was Feb 27, 2026.
- How much TDG stock have insiders bought?
- Insiders have bought a combined $3.8M of TDG across 19 open-market purchases, based on SEC Form 4 filings.
- What is an insider cluster buy in TDG?
- A cluster buy is two or more distinct TransDigm Group INC insiders — officers, directors, or 10% owners — each buying TDG on the open market within a rolling window. TDG has 1 detected cluster buy to date.
- Where does this TDG insider trading data come from?
- Every figure is parsed directly from SEC Form 4 filings on EDGAR, and each purchase on this page links back to its original filing document.
How we track insider buying in TDG
We continuously poll SEC EDGAR for new Form 4 filings and parse every open-market purchase (transaction code P). A cluster is recorded when two or more distinct insiders — officers, directors, or 10% owners — each buy TDG within a rolling window. We track clusters at every company size, from micro-caps to mega-caps. Every figure on this page traces back to an official filing; open any row to jump straight to the source document. What counts as a cluster buy?
This page is informational and reflects public filing data. It is not investment advice or a recommendation regarding TDG.