GEPSMAN MARTIN J

SEC Form 4 insider trading activity

GEPSMAN MARTIN J 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: Oct 22, 2026.

On the most recent filing, GEPSMAN MARTIN J is listed as Director at CME GROUP INC. Inside the rolling window, GEPSMAN MARTIN J reported no open-market purchases and 2 open-market sales totaling $213K in CME. The largest disclosed transaction in the window is a sale of 400 CME shares on Oct 22, 2026, worth $121K.

Companies traded

Other insiders at CME

Insider Buying

$0

reported purchases (SEC code P)

Insider Selling

$213K

reported sales (SEC code S)

Companies

1

in the rolling window

Source
CMESale$121KOct 22SEC ↗
CMESale$92KFeb 20SEC ↗
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Frequently asked questions

How many SEC Form 4 filings has GEPSMAN MARTIN J made?

GEPSMAN MARTIN J has filed 3 SEC Form 4 filings (3 transaction rows) across 1 company since 2026.

Which companies does GEPSMAN MARTIN J trade?

GEPSMAN MARTIN J has filed SEC Form 4 disclosures for 1 company, including CME.

When was GEPSMAN MARTIN J's most recent SEC Form 4 filing?

GEPSMAN MARTIN J's most recent SEC Form 4 filing on Tracefour is dated Oct 22, 2026.

What is GEPSMAN MARTIN J's total buy and sell value in the current window?

Inside the rolling retention window, GEPSMAN MARTIN J bought $0 and sold $213K based on SEC Form 4 filings.

What was GEPSMAN MARTIN J's largest disclosed transaction?

The largest disclosed transaction in the current window is a sale of 400 CME shares on 2026-10-22, worth $121K, per SEC Form 4 filings.