Affiliate files Form 144 to sell Common shares

CME affiliate filed a Form 144 proposing the sale of Common shares.

Rhea-AI Filing Summary

CME affiliate filed a Form 144 proposing the sale of Common shares.

The filing lists multiple lots of issuer‑granted securities described as Restricted Stock and Performance Shares with grant dates from 09/14/2020 through 03/15/2025. The record shows lot sizes such as 512 shares (09/14/2020) and 2,015 shares (03/15/2025) and a filing date of 05/18/2026.

Insights

Securities Counsel

Form 144 notifies a planned resale of issuer‑granted shares by an affiliate.

The notice lists multiple grant types—Restricted Stock and Performance Shares—with specific lot counts and grant dates. This is a required disclosure of an affiliate's intent to sell under Rule 144 procedures.

Timing and exact sale methods are not stated in the excerpt; subsequent transaction details will appear in broker reports or a Form 4 if sales occur.

Key Figures

Filing date: 05/18/2026 Lot - 09/14/2020: 512 shares Lot - 03/15/2024: 1,722 shares +2 more

5 metrics

Filing date 05/18/2026 Form 144 filing date

Lot - 09/14/2020 512 shares Restricted Stock grant date 09/14/2020

Lot - 03/15/2024 1,722 shares Performance Shares grant date 03/15/2024

Multiple 09/15/2024 lots 494 shares; 475 shares; 535 shares Restricted Stock grant date 09/15/2024

Lot - 03/15/2025 2,015 shares Performance Shares grant date 03/15/2025

Key Terms

Form 144, Restricted Stock, Performance Shares

3 terms

Form 144 regulatory

"Filing header and context listing securities to be sold"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Restricted Stock financial

"Listed under Securities To Be Sold with grant dates"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

Performance Shares financial

"Listed under Securities To Be Sold with grant dates"

Performance shares are a type of company stock given to executives or employees that only become theirs if the company meets specific goals, like hitting certain profits or growth targets. They motivate leaders to work toward the company’s success, because their additional shares depend on achieving these results.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the CME Form 144 filing mean?

It signals an affiliate's intent to sell Common shares under resale rules. The filing lists issuer grants and proposed resale lots, including specific grant dates and share counts, and records the filing date as 05/18/2026.

How many shares are listed in the Form 144 excerpt for CME?

The excerpt shows multiple lot sizes such as 512, 1,722, 494, 475, 535, and 2,015 shares tied to specific grant dates between 09/14/2020 and 03/15/2025.

Does the Form 144 confirm completed sales for CME shares?

No; Form 144 is a notice of proposed resale, not proof of sale. The excerpt lists lots intended for sale; completed transactions would be reported later in broker records or a Form 4 if sales occur.

Who is the filer identified in the CME Form 144 excerpt?

The filer is listed as Morgan Stanley Smith Barney LLC Executive Financial Services at the New York address shown. The excerpt ties the filing to Common shares listed on NASDAQ with a filing date of 05/18/2026.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/18/2026 - 06:15 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001409789
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	CME GROUP INC.
SEC File Number	001-31553
Address of Issuer	20 South Wacker Drive Chicago ILLINOIS 60606
Phone	(312) 930-1000
Name of Person for Whose Account the Securities are To Be Sold	HILDA PIELL 1998 TR
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	5753	1752536.39	362356209	05/18/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	09/14/2020	Restricted Stock	Issuer			512	09/14/2020	Not Applicable
Common	03/15/2024	Performance Shares	Issuer			1722	03/15/2024	Not Applicable
Common	09/15/2024	Restricted Stock	Issuer			494	09/15/2024	Not Applicable
Common	09/15/2024	Restricted Stock	Issuer			475	09/15/2024	Not Applicable
Common	09/15/2024	Restricted Stock	Issuer			535	09/15/2024	Not Applicable
Common	03/15/2025	Performance Shares	Issuer			2015	03/15/2025	Not Applicable

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	05/18/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Hilda Piell
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)