Joel Reiss sold $4.8M of TDG
Co-Chief Operating Officer at TransDigm Group INC. 3,900 shares at an average of $1,238.76, traded Aug 17, 2026, filed Aug 18, 2026.
Score components
- +20RoleCOO
- +25Trade size$4.8M at market
- +20Share of holdings soldSold 52% of holdings
- +8Cluster2 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.
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 0001656109-26-000007, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Aug 17, 2026 | MOption exercise Common Stock10b5-1 | +3,900 | $284.97 | $1.1M | 7,500 | Aug 18, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock10b5-1 | -140 | $1,232.82 | $173k | 7,360 | Aug 18, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock10b5-1 | -260 | $1,233.87 | $321k | 7,100 | Aug 18, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock10b5-1 | -327 | $1,234.93 | $404k | 6,773 | Aug 18, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock10b5-1 | -373 | $1,235.86 | $461k | 6,400 | Aug 18, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock10b5-1 | -671 | $1,236.80 | $830k | 5,729 | Aug 18, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock10b5-1 | -499 | $1,237.87 | $618k | 5,230 | Aug 18, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock10b5-1 | -340 | $1,238.84 | $421k | 4,890 | Aug 18, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock10b5-1 | -400 | $1,239.99 | $496k | 4,490 | Aug 18, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock10b5-1 | -120 | $1,240.78 | $149k | 4,370 | Aug 18, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock10b5-1 | -112 | $1,242.28 | $139k | 4,258 | Aug 18, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock10b5-1 | -138 | $1,243.03 | $172k | 4,120 | Aug 18, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock10b5-1 | -100 | $1,243.91 | $124k | 4,020 | Aug 18, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock10b5-1 | -145 | $1,245.29 | $181k | 3,875 | Aug 18, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock10b5-1 | -37 | $1,245.90 | $46k | 3,838 | Aug 18, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock10b5-1 | -48 | $1,247.31 | $60k | 3,790 | Aug 18, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock10b5-1 | -60 | $1,248.26 | $75k | 3,730 | Aug 18, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock10b5-1 | -20 | $1,250.82 | $25k | 3,710 | Aug 18, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock10b5-1 | -80 | $1,252.11 | $100k | 3,630 | Aug 18, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock10b5-1 | -30 | $1,253.08 | $38k | 3,600 | Aug 18, 2026 |
| Aug 17, 2026 | MOption exercise Stock Optionderivative10b5-1 | -3,900 | $0.00 | $0 | 8,000 | Aug 18, 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% | |
| 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% | |
| 23Weak | TransDigm Group INC | W Nicholas Howley director | $12M 10,132 shares | -32% |
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.