CME GROUP INC. (CME) Insider Transactions

Reported filing row; may be amended. Do not sum filings blindly.

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.

References: F1

Reported filing row; may be amended. Do not sum filings blindly.

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.

References: F1

Reported filing row; may be amended. Do not sum filings blindly.

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.

References: F2

Reported filing row; may be amended. Do not sum filings blindly.

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.

References: F1

Reported filing row; may be amended. Do not sum filings blindly.

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.

References: F3

Reported filing row; may be amended. Do not sum filings blindly.

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.

References: F3

Reported filing row; may be amended. Do not sum filings blindly.

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.

References: F2

Reported filing row; may be amended. Do not sum filings blindly.

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.

References: F1

Reported filing row; may be amended. Do not sum filings blindly.

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.

References: F1

Reported filing row; may be amended. Do not sum filings blindly.

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.

References: F2

Reported filing row; may be amended. Do not sum filings blindly.

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.

References: F1

Reported filing row; may be amended. Do not sum filings blindly.

F1 Reflects a change in the form of beneficial ownership from direct to indirect ownership via transfer to the Reporting Person's revocable living trust. This transaction is exempt from Section 16 pursuant to Rule 16a-13 under the Securities Exchange Act of 1934.

F2 Represents a grant of restricted stock under the CME Group Omnibus Stock Plan, vesting in four equal annual installments, subject to continued service.

F3 Represents shares surrendered to the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock previously granted to the Reporting Person.

References: F1

Reported filing row; may be amended. Do not sum filings blindly.

F1 Reflects a change in the form of beneficial ownership from direct to indirect ownership via transfer to the Reporting Person's revocable living trust. This transaction is exempt from Section 16 pursuant to Rule 16a-13 under the Securities Exchange Act of 1934.

F2 Represents a grant of restricted stock under the CME Group Omnibus Stock Plan, vesting in four equal annual installments, subject to continued service.

F3 Represents shares surrendered to the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock previously granted to the Reporting Person.

References: F1

Reported filing row; may be amended. Do not sum filings blindly.

References:

Reported filing row; may be amended. Do not sum filings blindly.

F1 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $298.00 to $298.89, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

F2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $299.00 to $299.95, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

References: F2

Reported filing row; may be amended. Do not sum filings blindly.

F1 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $298.00 to $298.89, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

F2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $299.00 to $299.95, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

References: F1

Reported filing row; may be amended. Do not sum filings blindly.

F1 Represents a pro-rata, in-kind distribution of Class A Common Stock by WH Trading LLC to the Reporting Person for no consideration in a transaction exempt under Rule 16a-13. The Reporting Person received 20,320 shares in his individual capacity, which are now held directly. Previously, such shares were reported as being held indirectly by the Reporting Person. Effective May 1, 2026, the Reporting Person is no longer the managing member of WH Trading LLC. As a result of his retirement, the Reporting Person no longer shares voting or dispositive power over, or holds a reportable pecuniary interest in, the shares held of record by WH Trading LLC.

F2 The amount of securities beneficially owned reported in Column 5 has been adjusted to reflect an administrative tracking true-up of 20.531 shares due to a cumulative clerical error in the calculation of historical balances. This adjustment reflects the Reporting Person's actual beneficial ownership as of the date of this filing.

F3 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.

F4 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.

References: F1, F2

Reported filing row; may be amended. Do not sum filings blindly.

F1 Represents a pro-rata, in-kind distribution of Class A Common Stock by WH Trading LLC to the Reporting Person for no consideration in a transaction exempt under Rule 16a-13. The Reporting Person received 20,320 shares in his individual capacity, which are now held directly. Previously, such shares were reported as being held indirectly by the Reporting Person. Effective May 1, 2026, the Reporting Person is no longer the managing member of WH Trading LLC. As a result of his retirement, the Reporting Person no longer shares voting or dispositive power over, or holds a reportable pecuniary interest in, the shares held of record by WH Trading LLC.

F2 The amount of securities beneficially owned reported in Column 5 has been adjusted to reflect an administrative tracking true-up of 20.531 shares due to a cumulative clerical error in the calculation of historical balances. This adjustment reflects the Reporting Person's actual beneficial ownership as of the date of this filing.

F3 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.

F4 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.

References: F1