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sellModerate cluster of 3

Bryan T Durkin sold $1.3M of CME

director at CME GROUP INC.. 4,200 shares at an average of $309.65, traded Feb 23, 2026, filed Feb 23, 2026.

Warning score
55
Value
$1.3M
4,200 shares
Holdings after
43,007
-9% from before
From 52-week low
+29%
low $235.11, close $303.66
From 52-week high
0%
high $303.66, as of Feb 23, 2026

Score components

  • Role
    Director
    +15
  • Trade size
    $1.3M at market
    +25
  • Share of holdings sold
    Sold 8.9% of holdings
    0
  • Cluster
    3 insiders selling within 14 days
    +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.

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.

CMEOct 9, 2026 · close 280.56
Since filing Feb 23, 2026: -7.6%SPY +15.0% · excess -22.6%

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 0001628280-26-010703, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Feb 23, 2026SOpen-market sale
Common Stock Class A
-4,200$309.65$1.3M43,007Feb 23, 2026

Related signals

Other insiders at CME GROUP INC. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
19Weak
CMEbuy
CME GROUP INC.
William R Shepard
director
$79k
293 shares
+0%
34Weak
CMEsell 2
CME GROUP INC.
Elizabeth A Cook
director
$140k
500 shares
-3%
68Notable
CMEsell 2
CME GROUP INC.
Terrence A Duffy
Chairman and CEO
$4.1M
15,000 shares
-27%
32Weak
CMEbuy
CME GROUP INC.
William R Shepard
director
$437k
1,470 shares
+1%
45Moderate
CMEsell 310b5-1
CME GROUP INC.
Jonathan L Marcus
Sr MD General Counsel
$1.1M
3,291 shares
-31%
65Notable
CMEsell 3
CME GROUP INC.
Ken Vroman
Chief Transformation Officer
$1.6M
5,160 shares
-26%
44Moderate
CMEsell 5
CME GROUP INC.
Elizabeth A Cook
director
$320k
1,000 shares
-5%
39Weak
CMEsell 4
CME GROUP INC.
Martin J Gepsman
director
$92k
300 shares
-1%
40Moderate
CMEsell 2
CME GROUP INC.
Dennis Suskind
director
$224k
748 shares
-22%
26Weak
CMEbuy
CME GROUP INC.
William R Shepard
director
$73k
262 shares
+11%

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.

Bryan T Durkin sold $1.3M of CME | InsiderTell