CME Group 8-K 2026-05-14

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

Date of report (Date of earliest event reported) May 18, 2026 (May 14, 2026)

CME GROUP INC.

(Exact Name of Registrant as Specified in its Charter)

Registrant’s telephone number, including area code: (312) 930-1000

N/A

(Former Name or Former Address, if Changed Since Last Report)

**Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (**see General Instruction A.2. below):

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405) of this chapter or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 5.07. Submission of Matters to a Vote of Security Holders.

CME Group Inc. (the “Company”) held its 2026 Annual Meeting of Shareholders on May 14, 2026 (the “Annual Meeting”). At the close of business on March 16, 2026, the record date of the Annual Meeting, the Company had 362,808,081 shares of Class A and Class B common stock issued and outstanding. The following shares were present at the Annual Meeting, either in person or by proxy.

For each class of common stock, at least 33.3% of the common stock issued and outstanding must be present at the Annual Meeting to obtain quorum. Accordingly, Class B-1, Class B-2, Class B-3 and Class B-4 did not reach quorum. In light of the low participation from the Class B shareholders at the Annual Meeting, the proposals presented under Items 4 through 8 were adjourned to a meeting to be held virtually on June 9, 2026 at 11:00 a.m. Central Time.

The results of the proposals that were voted on at the Annual Meeting, which are described in further detail in the Company's definitive proxy statement on Schedule 14A filed with the SEC on March 23, 2026, are as follows:

1.Each of the Equity Director nominees were elected to serve until the 2027 annual meeting of shareholders based on the following votes. For this item, Class A and Class B shareholders vote together as a single class. There were a total of 23,505,825 broker non-votes in this proposal.

2.The proposal to ratify the appointment of Ernst & Young LLP as the Company's independent auditor for 2026 was approved based upon the following votes. For this item, Class A and Class B shareholders vote together as a single class.

3.The proposal to approve, on an advisory basis, the compensation of the Company's named executive officers was approved based upon the following votes. For this item, Class A and Class B shareholders vote together as a single class. There were a total of 23,505,825 broker non-votes for this proposal.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.