Skip to content
sellNotable cluster of 3

Ken Vroman sold $1.6M of CME

Chief Transformation Officer at CME GROUP INC.. 5,160 shares at an average of $309.00, traded Mar 12, 2026, filed Mar 12, 2026.

Warning score
65
Value
$1.6M
5,160 shares
Holdings after
14,910
-26% from before
From 52-week low
+28%
low $240.68, close $308.14
From 52-week high
-2%
high $315.71, as of Mar 12, 2026

Score components

  • Role
    Officer
    +15
  • Trade size
    $1.6M at market
    +25
  • Share of holdings sold
    Sold 26% of holdings
    +10
  • 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.

This signal so far: 1m -5.1%, 3m -15.3%, 6m -11.1%.

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 Mar 12, 2026: -8.9%SPY +17.7% · excess -26.7%

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 0001628280-26-017392, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Mar 12, 2026SOpen-market sale
Common Stock Class A
-5,160$309.00$1.6M14,910Mar 12, 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%
41Moderate
CMEbuy
CME GROUP INC.
William R Shepard
director
$78k
339 shares
+9%
53Moderate
CMEsell 2
CME GROUP INC.
Hilda Harris Piell
Sr MD & Chief HR Officer
$1.8M
5,753 shares
-17%
68Notable
CMEsell 2
CME GROUP INC.
Terrence A Duffy
Chairman and CEO
$10M
35,000 shares
-39%
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
$1.0M
3,291 shares
-31%
45Moderate
CMEsell 310b5-1
CME GROUP INC.
Jonathan L Marcus
Sr MD General Counsel
$1.1M
3,291 shares
-31%
44Moderate
CMEsell 5
CME GROUP INC.
Elizabeth A Cook
director
$320k
1,000 shares
-5%

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.

Ken Vroman sold $1.6M of CME | InsiderTell