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sellWeak cluster of 210b5-1 plan

Joel Reiss sold $4.2M of TDG

Co-Chief Operating Officer at TransDigm Group INC. 3,486 shares at an average of $1,216.21, traded Jul 15, 2026, filed Jul 17, 2026.

Warning score
28
Value
$4.2M
3,486 shares
Holdings after
4,014
-46% from before
From 52-week low
+9%
low $1,132.88, close $1,232.18
From 52-week high
-19%
high $1,516.55, as of Jul 15, 2026

Score components

  • Role
    COO
    +20
  • Trade size
    $4.2M at market
    +25
  • Share of holdings sold
    Sold 46% of holdings
    +10
  • Cluster
    2 insiders selling within 14 days
    +8
  • Exercise and sell
    Shares came from an option exercise in the same filing
    -15
  • 10b5-1 plan
    Pre-scheduled under a 10b5-1 plan
    -20

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.

TDGOct 9, 2026 · close 1,108
Since filing Jul 17, 2026: -8.8%SPY +4.9% · excess -13.7%

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 0001656109-26-000004, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Jul 15, 2026MOption exercise
Common Stock10b5-1
+3,900$284.97$1.1M7,500Jul 17, 2026
Jul 15, 2026SOpen-market sale
Common Stock10b5-1
-10$1,195.20$12k7,490Jul 17, 2026
Jul 15, 2026SOpen-market sale
Common Stock10b5-1
-70$1,197.85$84k7,420Jul 17, 2026
Jul 15, 2026SOpen-market sale
Common Stock10b5-1
-80$1,198.80$96k7,340Jul 17, 2026
Jul 15, 2026SOpen-market sale
Common Stock10b5-1
-156$1,200.14$187k7,184Jul 17, 2026
Jul 15, 2026SOpen-market sale
Common Stock10b5-1
-160$1,201.32$192k7,024Jul 17, 2026
Jul 15, 2026SOpen-market sale
Common Stock10b5-1
-116$1,202.44$139k6,908Jul 17, 2026
Jul 15, 2026SOpen-market sale
Common Stock10b5-1
-74$1,203.80$89k6,834Jul 17, 2026
Jul 15, 2026SOpen-market sale
Common Stock10b5-1
-10$1,204.60$12k6,824Jul 17, 2026
Jul 15, 2026SOpen-market sale
Common Stock10b5-1
-30$1,206.69$36k6,794Jul 17, 2026
Jul 15, 2026SOpen-market sale
Common Stock10b5-1
-60$1,208.51$73k6,734Jul 17, 2026
Jul 15, 2026SOpen-market sale
Common Stock10b5-1
-80$1,209.20$97k6,654Jul 17, 2026
Jul 15, 2026SOpen-market sale
Common Stock10b5-1
-30$1,210.31$36k6,624Jul 17, 2026
Jul 15, 2026SOpen-market sale
Common Stock10b5-1
-90$1,211.50$109k6,534Jul 17, 2026
Jul 15, 2026SOpen-market sale
Common Stock10b5-1
-110$1,212.59$133k6,424Jul 17, 2026
Jul 15, 2026SOpen-market sale
Common Stock10b5-1
-170$1,213.73$206k6,254Jul 17, 2026
Jul 15, 2026SOpen-market sale
Common Stock10b5-1
-211$1,215.13$256k6,043Jul 17, 2026
Jul 15, 2026SOpen-market sale
Common Stock10b5-1
-239$1,216.22$291k5,804Jul 17, 2026
Jul 15, 2026SOpen-market sale
Common Stock10b5-1
-60$1,217.25$73k5,744Jul 17, 2026
Jul 15, 2026SOpen-market sale
Common Stock10b5-1
-90$1,218.22$110k5,654Jul 17, 2026
Jul 15, 2026SOpen-market sale
Common Stock10b5-1
-90$1,219.30$110k5,564Jul 17, 2026
Jul 15, 2026SOpen-market sale
Common Stock10b5-1
-140$1,220.50$171k5,424Jul 17, 2026
Jul 15, 2026SOpen-market sale
Common Stock10b5-1
-210$1,221.53$257k5,214Jul 17, 2026
Jul 15, 2026SOpen-market sale
Common Stock10b5-1
-60$1,222.60$73k5,154Jul 17, 2026
Jul 15, 2026SOpen-market sale
Common Stock10b5-1
-138$1,223.51$169k5,016Jul 17, 2026
Jul 15, 2026SOpen-market sale
Common Stock10b5-1
-509$1,224.62$623k4,507Jul 17, 2026
Jul 15, 2026SOpen-market sale
Common Stock10b5-1
-153$1,225.62$188k4,354Jul 17, 2026
Jul 15, 2026SOpen-market sale
Common Stock10b5-1
-40$1,226.98$49k4,314Jul 17, 2026
Jul 15, 2026SOpen-market sale
Common Stock10b5-1
-210$1,227.82$258k4,104Jul 17, 2026
Jul 15, 2026SOpen-market sale
Common Stock10b5-1
-90$1,228.79$111k4,014Jul 17, 2026
Jul 15, 2026MOption exercise
Stock Optionderivative10b5-1
+3,900$0.00$019,700Jul 17, 2026

Related signals

Other insiders at TransDigm Group INC and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
30Weak
TDGsell10b5-1
TransDigm Group INC
Joel Reiss
Co-Chief Operating Officer
$4.3M
3,900 shares
-52%
23Weak
TDGsell 210b5-1
TransDigm Group INC
W Nicholas Howley
director
$13M
10,132 shares
-32%
38Weak
TDGsell 210b5-1
TransDigm Group INC
Joel Reiss
Co-Chief Operating Officer
$4.8M
3,900 shares
-52%
23Weak
TDGsell 210b5-1
TransDigm Group INC
W Nicholas Howley
director
$12M
10,132 shares
-32%
31Weak
TDGsell 210b5-1
TransDigm Group INC
Joel Reiss
Co-Chief Operating Officer
$510k
414 shares
-10%
43Moderate
TDGsell 2
TransDigm Group INC
W Nicholas Howley
director
$13M
10,132 shares
-32%
43Moderate
TDGsell 2
TransDigm Group INC
W Nicholas Howley
director
$13M
10,132 shares
-32%
43Moderate
TDGsell 2
TransDigm Group INC
W Nicholas Howley
director
$13M
10,132 shares
-32%
58Moderate
TDGsell 2
TransDigm Group INC
Joel Reiss
Co-Chief Operating Officer
$5.0M
3,900 shares
-52%
23Weak
TDGsell 210b5-1
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.

Joel Reiss sold $4.2M of TDG | InsiderTell