Cook Elizabeth A

SEC Form 4 insider trading activity

Cook Elizabeth A has filed 3 SEC Form 4 filings (3 transaction rows) across 1 company, with disclosures dating back to 2026. 3 of those filings fall inside the rolling window. Most recent filing: Sep 15, 2026.

On the most recent filing, Cook Elizabeth A is listed as Director at CME GROUP INC. Inside the rolling window, Cook Elizabeth A reported no open-market purchases and 2 open-market sales totaling $460K in CME. The largest disclosed transaction in the window is a sale of 1,000 CME shares on Mar 6, 2026, worth $320K.

Companies traded

Other insiders at CME

Insider Buying

$0

reported purchases (SEC code P)

Insider Selling

$460K

reported sales (SEC code S)

Companies

1

in the rolling window

Source
CMESale$140KSep 15SEC ↗
CMESale$320KMar 9SEC ↗
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Frequently asked questions

How many SEC Form 4 filings has Cook Elizabeth A made?

Cook Elizabeth A has filed 3 SEC Form 4 filings (3 transaction rows) across 1 company since 2026.

Which companies does Cook Elizabeth A trade?

Cook Elizabeth A has filed SEC Form 4 disclosures for 1 company, including CME.

When was Cook Elizabeth A's most recent SEC Form 4 filing?

Cook Elizabeth A's most recent SEC Form 4 filing on Tracefour is dated Sep 15, 2026.

What is Cook Elizabeth A's total buy and sell value in the current window?

Inside the rolling retention window, Cook Elizabeth A bought $0 and sold $460K based on SEC Form 4 filings.

What was Cook Elizabeth A's largest disclosed transaction?

The largest disclosed transaction in the current window is a sale of 1,000 CME shares on 2026-03-06, worth $320K, per SEC Form 4 filings.