Joel Reiss sold $5.6M of TDG
Co-Chief Operating Officer at TransDigm Group INC. 3,900 shares at an average of $1,429.92, traded Jan 15, 2026, filed Jan 16, 2026.
Score components
- +20RoleCOO
- +25Trade size$5.6M at market
- +20Share of holdings soldSold 52% of holdings
- +15Cluster3 insiders selling within 14 days
- -15Exercise and sellShares came from an option exercise in the same filing
- -2010b5-1 planPre-scheduled under a 10b5-1 plan
What happened after comparable sells
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
This signal so far: 1m -11.3%, 3m -12.7%, 6m -16.2%.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001193125-26-015541, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Jan 15, 2026 | MOption exercise Common Stock10b5-1 | +3,900 | $284.97 | $1.1M | 7,500 | Jan 16, 2026 |
| Jan 15, 2026 | SOpen-market sale Common Stock10b5-1 | -44 | $1,420.38 | $62k | 7,456 | Jan 16, 2026 |
| Jan 15, 2026 | SOpen-market sale Common Stock10b5-1 | -67 | $1,421.89 | $95k | 7,389 | Jan 16, 2026 |
| Jan 15, 2026 | SOpen-market sale Common Stock10b5-1 | -95 | $1,422.63 | $135k | 7,294 | Jan 16, 2026 |
| Jan 15, 2026 | SOpen-market sale Common Stock10b5-1 | -128 | $1,423.80 | $182k | 7,166 | Jan 16, 2026 |
| Jan 15, 2026 | SOpen-market sale Common Stock10b5-1 | -90 | $1,425.10 | $128k | 7,076 | Jan 16, 2026 |
| Jan 15, 2026 | SOpen-market sale Common Stock10b5-1 | -245 | $1,426.35 | $349k | 6,831 | Jan 16, 2026 |
| Jan 15, 2026 | SOpen-market sale Common Stock10b5-1 | -396 | $1,427.27 | $565k | 6,435 | Jan 16, 2026 |
| Jan 15, 2026 | SOpen-market sale Common Stock10b5-1 | -477 | $1,428.03 | $681k | 5,958 | Jan 16, 2026 |
| Jan 15, 2026 | SOpen-market sale Common Stock10b5-1 | -260 | $1,429.14 | $372k | 5,698 | Jan 16, 2026 |
| Jan 15, 2026 | SOpen-market sale Common Stock10b5-1 | -372 | $1,430.21 | $532k | 5,326 | Jan 16, 2026 |
| Jan 15, 2026 | SOpen-market sale Common Stock10b5-1 | -453 | $1,431.26 | $648k | 4,873 | Jan 16, 2026 |
| Jan 15, 2026 | SOpen-market sale Common Stock10b5-1 | -257 | $1,432.40 | $368k | 4,616 | Jan 16, 2026 |
| Jan 15, 2026 | SOpen-market sale Common Stock10b5-1 | -486 | $1,433.36 | $697k | 4,130 | Jan 16, 2026 |
| Jan 15, 2026 | SOpen-market sale Common Stock10b5-1 | -200 | $1,434.18 | $287k | 3,930 | Jan 16, 2026 |
| Jan 15, 2026 | SOpen-market sale Common Stock10b5-1 | -205 | $1,435.14 | $294k | 3,725 | Jan 16, 2026 |
| Jan 15, 2026 | SOpen-market sale Common Stock10b5-1 | -35 | $1,436.15 | $50k | 3,690 | Jan 16, 2026 |
| Jan 15, 2026 | SOpen-market sale Common Stock10b5-1 | -50 | $1,437.56 | $72k | 3,640 | Jan 16, 2026 |
| Jan 15, 2026 | SOpen-market sale Common Stock10b5-1 | -40 | $1,438.91 | $58k | 3,600 | Jan 16, 2026 |
| Jan 15, 2026 | MOption exercise Stock Optionderivative10b5-1 | -3,900 | $0.00 | $0 | 35,300 | Jan 16, 2026 |
Related signals
Other insiders at TransDigm Group INC and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 30Weak | TransDigm Group INC | Joel Reiss Co-Chief Operating Officer | $4.3M 3,900 shares | -52% | |
| 23Weak | TransDigm Group INC | W Nicholas Howley director | $13M 10,132 shares | -32% | |
| 38Weak | TransDigm Group INC | Joel Reiss Co-Chief Operating Officer | $4.8M 3,900 shares | -52% | |
| 23Weak | TransDigm Group INC | W Nicholas Howley director | $12M 10,132 shares | -32% | |
| 28Weak | TransDigm Group INC | Joel Reiss Co-Chief Operating Officer | $4.2M 3,486 shares | -46% | |
| 31Weak | TransDigm Group INC | Joel Reiss Co-Chief Operating Officer | $510k 414 shares | -10% | |
| 43Moderate | TransDigm Group INC | W Nicholas Howley director | $13M 10,132 shares | -32% | |
| 43Moderate | TransDigm Group INC | W Nicholas Howley director | $13M 10,132 shares | -32% | |
| 43Moderate | TransDigm Group INC | W Nicholas Howley director | $13M 10,132 shares | -32% | |
| 58Moderate | TransDigm Group INC | Joel Reiss Co-Chief Operating Officer | $5.0M 3,900 shares | -52% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.