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sellWeak cluster of 510b5-1 plan

Joel Reiss sold $4.3M of TDG

Co-Chief Operating Officer at TransDigm Group INC. 3,000 shares at an average of $1,434.35, traded May 20, 2025, filed May 20, 2025.

Warning score
35
Value
$4.3M
3,000 shares
Holdings after
3,600
-45% from before
From 52-week low
+16%
low $1,152.50, close $1,337.60
From 52-week high
-3%
high $1,377.88, as of May 20, 2025

Score components

  • Role
    COO
    +20
  • Trade size
    $4.3M at market
    +25
  • Share of holdings sold
    Sold 45% of holdings
    +10
  • Cluster
    5 insiders selling within 14 days
    +15
  • 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.

This signal so far: 1m -1.1%, 3m -2.2%, 6m +1.0%.

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 May 20, 2025: -17.2%SPY +33.5% · excess -50.7%

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 0000950170-25-075266, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
May 20, 2025MOption exercise
Common Stock10b5-1
+3,000$284.97$855k6,600May 20, 2025
May 20, 2025SOpen-market sale
Common Stock10b5-1
-300$1,429.56$429k6,300May 20, 2025
May 20, 2025SOpen-market sale
Common Stock10b5-1
-100$1,430.57$143k6,200May 20, 2025
May 20, 2025SOpen-market sale
Common Stock10b5-1
-434$1,432.78$622k5,766May 20, 2025
May 20, 2025SOpen-market sale
Common Stock10b5-1
-409$1,434.02$587k5,357May 20, 2025
May 20, 2025SOpen-market sale
Common Stock10b5-1
-360$1,435.22$517k4,997May 20, 2025
May 20, 2025SOpen-market sale
Common Stock10b5-1
-1,397$1,436.01$2.0M3,600May 20, 2025
May 20, 2025MOption exercise
Stock Optionderivative10b5-1
-3,000$0.00$062,000May 20, 2025

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%
28Weak
TDGsell 210b5-1
TransDigm Group INC
Joel Reiss
Co-Chief Operating Officer
$4.2M
3,486 shares
-46%
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%

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 $4.3M of TDG | InsiderTell