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sellWeak cluster of 5

David Weill sold $524k of TMDX

director at TransMedics Group, Inc.. 3,571 shares at an average of $146.82, traded Mar 4, 2026, filed Mar 6, 2026.

Warning score
38
Value
$524k
3,571 shares
Holdings after
12,134
-23% from before
From 52-week low
+129%
low $64.35, close $147.66
From 52-week high
-2%
high $150.42, as of Mar 4, 2026

Score components

  • Role
    Director
    +15
  • Trade size
    $524k at market
    +18
  • Share of holdings sold
    Sold 23% of holdings
    +5
  • Cluster
    5 insiders selling within 14 days
    +15
  • Exercise and sell
    Shares came from an option exercise in the same filing
    -15

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 -22.3%, 3m -46.4%, 6m -30.6%.

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.

TMDXOct 9, 2026 · close 77.87
Since filing Mar 6, 2026: -39.9%SPY +16.6% · excess -56.5%

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 0001193125-26-097051, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Mar 4, 2026MOption exercise
Common Stock
+3,571$14.20$51k15,705Mar 6, 2026
Mar 4, 2026SOpen-market sale
Common Stock
-3,571$146.82$524k12,134Mar 6, 2026
Mar 4, 2026MOption exercise
Stock Option (Right to Buy)derivative
-3,571$0.00$01,429Mar 6, 2026

Related signals

Other insiders at TransMedics Group, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
36Weak
TMDXbuy
TransMedics Group, Inc.
David Weill
director
$109k
1,336 shares
+9%
31Weak
TMDXsell
TransMedics Group, Inc.
Thomas J. Gunderson
director
$722k
9,624 shares
-37%
52Moderate
TMDXsell 5
TransMedics Group, Inc.
Stephanie Lovell
director
$178k
1,193 shares
-29%
46Moderate
TMDXsell 5
TransMedics Group, Inc.
Nicholas Corcoran
See remarks
$413k
2,966 shares
-9%
67Notable
TMDXsell 5
TransMedics Group, Inc.
Gerardo Hernandez
Chief Financial Officer
$1.1M
7,611 shares
-51%
40Moderate
TMDXsell 5
TransMedics Group, Inc.
Anil P. Ranganath
See remarks
$120k
864 shares
-6%
48Moderate
TMDXsell 3
TransMedics Group, Inc.
Gerardo Hernandez
Chief Financial Officer
$128k
920 shares
-6%
46Moderate
TMDXsell 3
TransMedics Group, Inc.
David Weill
director
$693k
5,000 shares
-29%
37Weak
TMDXsell 3
TransMedics Group, Inc.
Anil P. Ranganath
See remarks
$436k
3,000 shares
-18%
54Moderate
TMDXbuy
TransMedics Group, Inc.
Waleed H Hassanein
President & CEO
$1.0M
8,775 shares
+2%

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.

David Weill sold $524k of TMDX | InsiderTell