Bryan T. Durkin - 23 Feb 2026 Form 4 Insider Report for CME GROUP INC. (CME)

Reporting relationship: Director
Issuer ticker: CME
Reported as of: 23 Feb 2026
Net transaction value: -$1,300,530
SEC form: 4
Accepted by SEC: 23 Feb 2026, 16:46:37 UTC
Prior SEC filing: 26 Jun 2025
Next SEC filing: 29 Jun 2026
Source filing: View source filing
Reporting owner signature: By: Margaret Austin Wright For: Bryan T. Durkin

Key filing fact

Bryan T. Durkin filed Form 4 for CME GROUP INC. (CME) on 23 Feb 2026.

Key facts

This page summarizes Bryan T. Durkin's Form 4 filing for CME GROUP INC. (CME).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 23 Feb 2026, 16:46.

Change

Previous filing in this sequence was filed on 26 Jun 2025.
Current net transaction value: -$1,300,530.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001341363 Primary reporting owner

Durkin Bryan T

Relationship: Director
Address: 20 S. WACKER DRIVE, CHICAGO
Signature: By: Margaret Austin Wright For: Bryan T. Durkin
Signature date: 23 Feb 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

CME transaction

Common Stock Class A

Sale

Transaction value: $1,300,530
Shares: -4,200
Change %: -8.9%
Price: $309.65
Shares after: 43,007
Date: 23 Feb 2026
Ownership: Direct
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

On February 23, 2026, Mr. Durkin sold an aggregate of 4,200 shares of CME Group Class A common stock. For reporting purposes, the sale prices within $1 range have been aggregated and the weighted average has been reported. The price range was $309.25 to $310.07. The Company maintains a record of the transaction and copies will be provided upon request.