Cme

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-06-25 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: CME GROUP INC. (CME) CIK: 0001156375 --- Reporting Owner --- Name: SHEPARD WILLIAM R CIK: 0001212852 Role: Director --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Class A Date: 2026-06-25 | Code: A (Grant or award) Shares: +645 | Price: $225.00 Total Value: $145,125.00 Shares Owned After: 3,184.45 | Ownership: D (Direct) Footnotes: [F1] Represents a grant of fully vested shares of Class A Common Stock issued to the Reporting Person as part of the Issuer's annual equity compensation program for non-employee directors under the CME Group Director Stock Plan. These shares are not subject to any vesting conditions. [Transaction #2] Security: Common Stock Class A Date: 2026-06-25 | Code: A (Grant or award) Shares: +422 | Price: $225.00 Total Value: $94,950.00 Shares Owned After: 3,606.45 | Ownership: D (Direct) Footnotes: [F2] At the Reporting Person's election, shares issued in lieu of all or a portion of the annual cash retainer for serving as a member of the Board of Directors. The number of shares was determined by dividing the cash retainer by the closing price on the date of grant. [Transaction #3] Security: Common Stock Class A Date: 2026-06-25 | Code: P (Open market purchase) Shares: +14.318 | Price: $230.57 Total Value: $3,301.30 Shares Owned After: 3,620.768 | Ownership: D (Direct) Footnotes: [F3] Represents shares acquired pursuant to a broker-administered dividend reinvestment plan. [Transaction #4] Security: Common Stock Class A Date: 2026-06-25 | Code: P (Open market purchase) Shares: +324.782 | Price: $230.57 Total Value: $74,884.99 Shares Owned After: 260,442.322 | Ownership: I (Indirect) | Nature: by Trust Footnotes: [F3] Represents shares acquired pursuant to a broker-administered dividend reinvestment plan. --- Footnotes (Complete Index) --- F1: Represents a grant of fully vested shares of Class A Common Stock issued to the Reporting Person as part of the Issuer's annual equity compensation program for non-employee directors under the CME Group Director Stock Plan. These shares are not subject to any vesting conditions. F2: At the Reporting Person's election, shares issued in lieu of all or a portion of the annual cash retainer for serving as a member of the Board of Directors. The number of shares was determined by dividing the cash retainer by the closing price on the date of grant. F3: Represents shares acquired pursuant to a broker-administered dividend reinvestment plan. --- Signature --- /s/ /s/ Elizabeth Hensen, as Attorney-in-Fact for William R. Shepard (2026-06-29)