Last 12 months
Inside the activity.
7 purchase rows · 18 sale rows
Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.Monthly counts
| Month | Purchases | Sales |
|---|---|---|
| Nov 2025 | 0 | 3 |
| Dec 2025 | 2 | 2 |
| Jan 2026 | 0 | 0 |
| Feb 2026 | 0 | 3 |
| Mar 2026 | 2 | 4 |
| Apr 2026 | 0 | 0 |
| May 2026 | 0 | 3 |
| Jun 2026 | 2 | 0 |
| Jul 2026 | 0 | 0 |
| Aug 2026 | 0 | 0 |
| Sep 2026 | 1 | 3 |
| Oct 2026 | 0 | 0 |
Latest available
Insider transactions
Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Owner / reported role | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| September 15, 2026 Filed Sep 17, 2026 20:19 UTC |
Cutinho SunilChief Information Officer
|
GrantCommon Stock Class A | 2,864 | $275.09 | $787,857.76 |
DisclosureSEC source: 0001619400-26-000003 · wk-form4_1789676349.xml · nonDerivative · entry 1 Cutinho Sunil · CIK 0001619400 · Chief Information Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 26,450 F1 · kind: Represents a grant of restricted stock under the CME Group Omnibus Stock Plan, vesting in four equal annual installments, subject to continued service. Read SEC document |
| September 14, 2026 Filed Sep 15, 2026 00:04 UTC |
Cook Elizabeth ADirector
|
SaleCommon Stock Class A | 500 | $280.11 | $140,055.00 |
DisclosureSEC source: 0001156375-26-000054 · wk-form4_1789430691.xml · nonDerivative · entry 1 Cook Elizabeth A · CIK 0001643475 · Director 10b5-1 filing: No plan indicated Ownership: Indirect · by Trust Disclosed balance after: 17,916 Read SEC document |
| September 10, 2026 Filed Sep 11, 2026 21:17 UTC |
DUFFY TERRENCE ADirector · Chairman and CEO
|
SaleCommon Stock Class A | 628 | $275.03 | $172,718.84 |
DisclosureSEC source: 0001212809-26-000006 · wk-form4_1789161450.xml · nonDerivative · entry 2 DUFFY TERRENCE A · CIK 0001212809 · Director · Chairman and CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 40,630 F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $274.9056 to $275.0804, 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. Read SEC document |
| September 10, 2026 Filed Sep 11, 2026 21:17 UTC |
DUFFY TERRENCE ADirector · Chairman and CEO
|
SaleCommon Stock Class A | 14,372 | $274.41 | $3,943,820.52 |
DisclosureSEC source: 0001212809-26-000006 · wk-form4_1789161450.xml · nonDerivative · entry 1 DUFFY TERRENCE A · CIK 0001212809 · Director · Chairman and CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 41,258 F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $273.875 to $274.85, 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. Read SEC document |
| August 18, 2026 Filed Sep 28, 2026 20:15 UTC |
SHEPARD WILLIAM RDirector
|
OtherCommon Stock Class A | 2,553.779 | $0.00 | $0.00 |
DisclosureSEC source: 0001212852-26-000005 · wk-form4_1790626530.xml · nonDerivative · entry 2 SHEPARD WILLIAM R · CIK 0001212852 · Director 10b5-1 filing: No plan indicated Ownership: Indirect · by Trust Disclosed balance after: 262,996.092 F1 · kind: 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. Read SEC document |
| August 18, 2026 Filed Sep 28, 2026 20:15 UTC |
SHEPARD WILLIAM RDirector
|
OtherCommon Stock Class A | 2,553.779 | $0.00 | $0.00 |
DisclosureSEC source: 0001212852-26-000005 · wk-form4_1790626530.xml · nonDerivative · entry 1 SHEPARD WILLIAM R · CIK 0001212852 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,067 F1 · kind: 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. Read SEC document |
| June 25, 2026 Filed Jun 29, 2026 20:31 UTC |
Tierney Robert J JRDirector
|
GrantCommon Stock Class A | 645 | $225.00 | $145,125.00 |
DisclosureSEC source: 0001776581-26-000003 · wk-form4_1782765060.xml · nonDerivative · entry 1 Tierney Robert J JR · CIK 0001776581 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 14,345 F1 · kind: 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. Read SEC document |
| June 25, 2026 Filed Jun 29, 2026 20:30 UTC |
GEPSMAN MARTIN JDirector
|
GrantCommon Stock Class A | 645 | $225.00 | $145,125.00 |
DisclosureSEC source: 0001212813-26-000003 · wk-form4_1782765002.xml · nonDerivative · entry 1 GEPSMAN MARTIN J · CIK 0001212813 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 25,644 F1 · kind: 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. Read SEC document |
| June 25, 2026 Filed Jun 29, 2026 20:28 UTC |
SHEPARD WILLIAM RDirector
|
PurchaseCommon Stock Class A | 324.782 | $230.57 | $74,884.99 |
DisclosureSEC source: 0001212852-26-000003 · wk-form4_1782764934.xml · nonDerivative · entry 4 SHEPARD WILLIAM R · CIK 0001212852 · Director 10b5-1 filing: No plan indicated Ownership: Indirect · by Trust Disclosed balance after: 260,442.322 F3 · shares: Represents shares acquired pursuant to a broker-administered dividend reinvestment plan. Read SEC document |
| June 25, 2026 Filed Jun 29, 2026 20:28 UTC |
SHEPARD WILLIAM RDirector
|
PurchaseCommon Stock Class A | 14.318 | $230.57 | $3,301.30 |
DisclosureSEC source: 0001212852-26-000003 · wk-form4_1782764934.xml · nonDerivative · entry 3 SHEPARD WILLIAM R · CIK 0001212852 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 3,620.768 F3 · shares: Represents shares acquired pursuant to a broker-administered dividend reinvestment plan. Read SEC document |
| June 25, 2026 Filed Jun 29, 2026 20:28 UTC |
SHEPARD WILLIAM RDirector
|
GrantCommon Stock Class A | 422 | $225.00 | $94,950.00 |
DisclosureSEC source: 0001212852-26-000003 · wk-form4_1782764934.xml · nonDerivative · entry 2 SHEPARD WILLIAM R · CIK 0001212852 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 3,606.45 F2 · kind: 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. Read SEC document |
| June 25, 2026 Filed Jun 29, 2026 20:28 UTC |
SHEPARD WILLIAM RDirector
|
GrantCommon Stock Class A | 645 | $225.00 | $145,125.00 |
DisclosureSEC source: 0001212852-26-000003 · wk-form4_1782764934.xml · nonDerivative · entry 1 SHEPARD WILLIAM R · CIK 0001212852 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 3,184.45 F1 · kind: 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. Read SEC document |
| June 25, 2026 Filed Jun 29, 2026 20:27 UTC |
Seifu RahaelDirector
|
GrantCommon Stock Class A | 645 | $225.00 | $145,125.00 |
DisclosureSEC source: 0001812194-26-000003 · wk-form4_1782764863.xml · nonDerivative · entry 1 Seifu Rahael · CIK 0001812194 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 4,739 F1 · kind: 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. Read SEC document |
| June 25, 2026 Filed Jun 29, 2026 20:25 UTC |
Suskind DennisDirector
|
GrantCommon Stock Class A | 645 | $225.00 | $145,125.00 |
DisclosureSEC source: 0001361519-26-000003 · wk-form4_1782764715.xml · nonDerivative · entry 1 Suskind Dennis · CIK 0001361519 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 3,344 F1 · kind: 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. Read SEC document |
| June 25, 2026 Filed Jun 29, 2026 20:24 UTC |
SIEGEL HOWARD JDirector
|
GrantCommon Stock Class A | 422 | $225.00 | $94,950.00 |
DisclosureSEC source: 0001212853-26-000003 · wk-form4_1782764657.xml · nonDerivative · entry 2 SIEGEL HOWARD J · CIK 0001212853 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 48,858 F2 · kind: 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. Read SEC document |
| June 25, 2026 Filed Jun 29, 2026 20:24 UTC |
SIEGEL HOWARD JDirector
|
GrantCommon Stock Class A | 645 | $225.00 | $145,125.00 |
DisclosureSEC source: 0001212853-26-000003 · wk-form4_1782764657.xml · nonDerivative · entry 1 SIEGEL HOWARD J · CIK 0001212853 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 48,436 F1 · kind: 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. Read SEC document |
| June 25, 2026 Filed Jun 29, 2026 20:22 UTC |
Mulchrone Patrick JDirector
|
GrantCommon Stock Class A | 645 | $225.00 | $145,125.00 |
DisclosureSEC source: 0001812174-26-000003 · wk-form4_1782764548.xml · nonDerivative · entry 1 Mulchrone Patrick J · CIK 0001812174 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 29,130 F1 · kind: 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. Read SEC document |
| June 25, 2026 Filed Jun 29, 2026 20:21 UTC |
Maloney Patrick WDirector
|
GrantCommon Stock Class A | 645 | $225.00 | $145,125.00 |
DisclosureSEC source: 0001812087-26-000003 · wk-form4_1782764458.xml · nonDerivative · entry 1 Maloney Patrick W · CIK 0001812087 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 4,743 F1 · kind: 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. Read SEC document |
| June 25, 2026 Filed Jun 29, 2026 20:20 UTC |
Lucas Deborah JDirector
|
GrantCommon Stock Class A | 645 | $225.00 | $145,125.00 |
DisclosureSEC source: 0001329150-26-000003 · wk-form4_1782764403.xml · nonDerivative · entry 1 Lucas Deborah J · CIK 0001329150 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 4,533 F1 · kind: 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. Read SEC document |
| June 25, 2026 Filed Jun 29, 2026 20:19 UTC |
Lockett Phyllis MDirector
|
GrantCommon Stock Class A | 645 | $225.00 | $145,125.00 |
DisclosureSEC source: 0001776684-26-000003 · wk-form4_1782764348.xml · nonDerivative · entry 1 Lockett Phyllis M · CIK 0001776684 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 4,285 F1 · kind: 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. Read SEC document |
| June 25, 2026 Filed Jun 29, 2026 20:18 UTC |
Kaye Daniel GDirector
|
GrantCommon Stock Class A | 645 | $225.00 | $145,125.00 |
DisclosureSEC source: 0001556974-26-000005 · wk-form4_1782764284.xml · nonDerivative · entry 1 Kaye Daniel G · CIK 0001556974 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 4,845 F1 · kind: 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. Read SEC document |
| June 25, 2026 Filed Jun 29, 2026 20:15 UTC |
Ford Harold Eugene Jr.Director
|
GrantCommon Stock Class A | 422 | $225.00 | $94,950.00 |
DisclosureSEC source: 0001156375-26-000037 · wk-form4_1782764127.xml · nonDerivative · entry 2 Ford Harold Eugene Jr. · CIK 0001799464 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,158 F2 · kind: 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. Read SEC document |
| June 25, 2026 Filed Jun 29, 2026 20:15 UTC |
Ford Harold Eugene Jr.Director
|
GrantCommon Stock Class A | 645 | $225.00 | $145,125.00 |
DisclosureSEC source: 0001156375-26-000037 · wk-form4_1782764127.xml · nonDerivative · entry 1 Ford Harold Eugene Jr. · CIK 0001799464 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,736 F1 · kind: 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. Read SEC document |
| June 25, 2026 Filed Jun 29, 2026 20:17 UTC |
Hobert William WDirector
|
GrantCommon Stock Class A | 422 | $225.00 | $94,950.00 |
DisclosureSEC source: 0001643402-26-000003 · wk-form4_1782764217.xml · nonDerivative · entry 4 Hobert William W · CIK 0001643402 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 108,005.531 F4 · kind: 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. Read SEC document |
| June 25, 2026 Filed Jun 29, 2026 20:17 UTC |
Hobert William WDirector
|
GrantCommon Stock Class A | 645 | $225.00 | $145,125.00 |
DisclosureSEC source: 0001643402-26-000003 · wk-form4_1782764217.xml · nonDerivative · entry 3 Hobert William W · CIK 0001643402 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 107,583.531 F3 · kind: 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. Read SEC document |
| June 25, 2026 Filed Jun 29, 2026 20:13 UTC |
Cook Elizabeth ADirector
|
GrantCommon Stock Class A | 645 | $225.00 | $145,125.00 |
DisclosureSEC source: 0001643475-26-000003 · wk-form4_1782763993.xml · nonDerivative · entry 1 Cook Elizabeth A · CIK 0001643475 · Director 10b5-1 filing: No plan indicated Ownership: Indirect · by Trust Disclosed balance after: 18,416 F1 · kind: 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. Read SEC document |
| June 25, 2026 Filed Jun 29, 2026 20:14 UTC |
Durkin Bryan TDirector
|
GrantCommon Stock Class A | 645 | $225.00 | $145,125.00 |
DisclosureSEC source: 0001341363-26-000003 · wk-form4_1782764052.xml · nonDerivative · entry 1 Durkin Bryan T · CIK 0001341363 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 43,652 F1 · kind: 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. Read SEC document |
| June 25, 2026 Filed Jun 29, 2026 20:11 UTC |
Carey Charles PDirector
|
GrantCommon Stock Class A | 422 | $225.00 | $94,950.00 |
DisclosureSEC source: 0001341358-26-000003 · wk-form4_1782763903.xml · nonDerivative · entry 2 Carey Charles P · CIK 0001341358 · Director 10b5-1 filing: No plan indicated Ownership: Indirect · by Trust Disclosed balance after: 6,846 F2 · kind: 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. Read SEC document |
| June 25, 2026 Filed Jun 29, 2026 20:11 UTC |
Carey Charles PDirector
|
GrantCommon Stock Class A | 645 | $225.00 | $145,125.00 |
DisclosureSEC source: 0001341358-26-000003 · wk-form4_1782763903.xml · nonDerivative · entry 1 Carey Charles P · CIK 0001341358 · Director 10b5-1 filing: No plan indicated Ownership: Indirect · by Trust Disclosed balance after: 6,424 F1 · kind: 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. Read SEC document |
| June 25, 2026 Filed Jun 29, 2026 20:10 UTC |
Bitsberger Timothy S.Director
|
GrantCommon Stock Class A | 645 | $225.00 | $145,125.00 |
DisclosureSEC source: 0001434852-26-000003 · wk-form4_1782763828.xml · nonDerivative · entry 1 Bitsberger Timothy S. · CIK 0001434852 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 11,766 F1 · kind: 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. Read SEC document |
| June 25, 2026 Filed Jun 29, 2026 20:08 UTC |
Benesh KathrynDirector
|
GrantCommon Stock Class A | 645 | $225.00 | $145,125.00 |
DisclosureSEC source: 0001976318-26-000003 · wk-form4_1782763685.xml · nonDerivative · entry 1 Benesh Kathryn · CIK 0001976318 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,751.948 F1 · kind: 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. Read SEC document |
| May 25, 2026 Filed Sep 17, 2026 20:25 UTC |
Sammann DerekSr MD Gl Hd Commodities Mkts
|
OtherCommon Stock Class A | 4,629 | $0.00 | $0.00 |
DisclosureSEC source: 0001475318-26-000003 · wk-form4_1789676756.xml · nonDerivative · entry 2 Sammann Derek · CIK 0001475318 · Sr MD Gl Hd Commodities Mkts 10b5-1 filing: No plan indicated Ownership: Indirect · by Trust Disclosed balance after: 15,657 F1 · kind: 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. Read SEC document |
| May 25, 2026 Filed Sep 17, 2026 20:25 UTC |
Sammann DerekSr MD Gl Hd Commodities Mkts
|
OtherCommon Stock Class A | 4,629 | $0.00 | $0.00 |
DisclosureSEC source: 0001475318-26-000003 · wk-form4_1789676756.xml · nonDerivative · entry 1 Sammann Derek · CIK 0001475318 · Sr MD Gl Hd Commodities Mkts 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 8,683 F1 · kind: 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. Read SEC document |
| May 18, 2026 Filed May 19, 2026 20:22 UTC |
Piell Hilda HarrisSr MD & Chief HR Officer
|
SaleCommon Stock Class A | 5,753 | $304.63 | $1,752,536.39 |
DisclosureSEC source: 0001156375-26-000029 · wk-form4_1779222156.xml · nonDerivative · entry 1 Piell Hilda Harris · CIK 0001409789 · Sr MD & Chief HR Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 27,702 Read SEC document |
| May 15, 2026 Filed May 18, 2026 20:12 UTC |
DUFFY TERRENCE ADirector · Chairman and CEO
|
SaleCommon Stock Class A | 9,004 | $299.58 | $2,697,418.32 |
DisclosureSEC source: 0001212809-26-000004 · wk-form4_1779135132.xml · nonDerivative · entry 2 DUFFY TERRENCE A · CIK 0001212809 · Director · Chairman and CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 55,630 F2 · price: 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. Read SEC document |
| May 15, 2026 Filed May 18, 2026 20:12 UTC |
DUFFY TERRENCE ADirector · Chairman and CEO
|
SaleCommon Stock Class A | 25,996 | $298.14 | $7,750,447.44 |
DisclosureSEC source: 0001212809-26-000004 · wk-form4_1779135132.xml · nonDerivative · entry 1 DUFFY TERRENCE A · CIK 0001212809 · Director · Chairman and CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 64,634 F1 · price: 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. Read SEC document |
| May 01, 2026 Filed Jun 29, 2026 20:17 UTC |
Hobert William WDirector
|
OtherCommon Stock Class A | 20,320 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001643402-26-000003 · wk-form4_1782764217.xml · nonDerivative · entry 2 Hobert William W · CIK 0001643402 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 106,938.531 F1 · price: 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 · balance_after: 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. Read SEC document |
| May 01, 2026 Filed Jun 29, 2026 20:17 UTC |
Hobert William WDirector
|
OtherCommon Stock Class A | 20,320 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001643402-26-000003 · wk-form4_1782764217.xml · nonDerivative · entry 1 Hobert William W · CIK 0001643402 · Director 10b5-1 filing: No plan indicated Ownership: Indirect · By Firm Disclosed balance after: 19,680 F1 · price: 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. Read SEC document |
| March 26, 2026 Filed Mar 30, 2026 21:30 UTC |
SHEPARD WILLIAM RDirector
|
PurchaseCommon Stock Class A | 62.06 | $297.38 | $18,455.40 |
DisclosureSEC source: 0001628280-26-022028 · wk-form4_1774901973.xml · nonDerivative · entry 2 SHEPARD WILLIAM R · CIK 0001212852 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,539.45 F1 · shares: Reflects shares that were acquired pursuant to a dividend reinvestment plan administered by the reporting person's broker. Actual amounts of fractional shares owned may vary slightly due to rounding. Read SEC document |
| March 26, 2026 Filed Mar 30, 2026 21:30 UTC |
SHEPARD WILLIAM RDirector
|
PurchaseCommon Stock Class A | 1,407.78 | $297.38 | $418,645.62 |
DisclosureSEC source: 0001628280-26-022028 · wk-form4_1774901973.xml · nonDerivative · entry 1 SHEPARD WILLIAM R · CIK 0001212852 · Director 10b5-1 filing: No plan indicated Ownership: Indirect · by Trust Disclosed balance after: 260,117.54 F1 · shares: Reflects shares that were acquired pursuant to a dividend reinvestment plan administered by the reporting person's broker. Actual amounts of fractional shares owned may vary slightly due to rounding. Read SEC document |
| March 17, 2026 Filed Mar 19, 2026 13:47 UTC |
Marcus Jonathan LSr MD General Counsel
|
SaleCommon Stock Class A | 3,291 | $333.37 | $1,097,120.67 |
DisclosureSEC source: 0001628280-26-019658 · wk-form4_1773928030.xml · nonDerivative · entry 1 Marcus Jonathan L · CIK 0001952996 · Sr MD General Counsel 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 7,192 F1 · shares: This transaction was effected pursuant to a Rule 10b5-1 plan adopted by the reporting person on February 18, 2025. Read SEC document |
| March 17, 2026 Filed Mar 23, 2026 13:38 UTC Amendment |
Marcus Jonathan LSr MD General Counsel
|
SaleCommon Stock Class A | 3,291 | $313.37 | $1,031,300.67 |
DisclosureSEC source: 0001628280-26-020364 · wk-form4a_1774273136.xml · nonDerivative · entry 1 Marcus Jonathan L · CIK 0001952996 · Sr MD General Counsel 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 7,192 F1 · shares: This transaction was effected pursuant to a Rule 10b5-1 plan adopted by the reporting person on February 18, 2025. F2 · price: This amendment is being filed to correct the price per share of the common stock sold on March 17, 2026, which was incorrectly reported on the original Form 4 filed on March 19, 2026 due to a clerical error. All other information in the original Form 4 remains unchanged. Read SEC document |
| March 15, 2026 Filed Mar 17, 2026 12:24 UTC |
McCourt Timothy FrancisSr MD Global Head Equity & FX
|
Tax withholdingCommon Stock Class A | 94 | $311.40 | $29,271.60 |
DisclosureSEC source: 0001628280-26-018545 · wk-form4_1773764648.xml · nonDerivative · entry 3 McCourt Timothy Francis · CIK 0001917308 · Sr MD Global Head Equity & FX 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 12,108 F3 · shares: Mr. McCourt surrendered shares to the company to fulfill tax withholding obligations upon the vesting of restricted stock on 3/15/2026. Read SEC document |
| March 15, 2026 Filed Mar 17, 2026 12:24 UTC |
McCourt Timothy FrancisSr MD Global Head Equity & FX
|
Tax withholdingCommon Stock Class A | 2,810 | $311.40 | $875,034.00 |
DisclosureSEC source: 0001628280-26-018545 · wk-form4_1773764648.xml · nonDerivative · entry 2 McCourt Timothy Francis · CIK 0001917308 · Sr MD Global Head Equity & FX 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 12,202 F2 · shares: Mr. McCourt surrendered shares to the company in order to fulfill tax withholding obligations related to the receipt of the performance share award. Read SEC document |
| March 15, 2026 Filed Mar 17, 2026 12:24 UTC |
McCourt Timothy FrancisSr MD Global Head Equity & FX
|
GrantCommon Stock Class A | 5,504 | $311.40 | $1,713,945.60 |
DisclosureSEC source: 0001628280-26-018545 · wk-form4_1773764648.xml · nonDerivative · entry 1 McCourt Timothy Francis · CIK 0001917308 · Sr MD Global Head Equity & FX 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 15,012 F1 · shares: Represents the vesting of performance shares granted in 2022 under CME Group's Omnibus Stock Plan. The number of shares was determined based on the company's achievement of total shareholder return relative to the S&P 500 measured over a three-year performance period from January 1, 2023 through December 31, 2025. Read SEC document |
| March 15, 2026 Filed Mar 17, 2026 16:23 UTC |
Sprague SuzanneCOO & Global Head of Clearing
|
Tax withholdingCommon Stock Class A | 76 | $311.40 | $23,666.40 |
DisclosureSEC source: 0001628280-26-018542 · wk-form4_1773764630.xml · nonDerivative · entry 3 Sprague Suzanne · CIK 0001914409 · COO & Global Head of Clearing 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 13,836 F3 · shares: Ms. Sprague surrendered shares to the company to fulfill tax withholding obligations upon the vesting of restricted stock on 3/15/2026. Read SEC document |
| March 15, 2026 Filed Mar 17, 2026 16:23 UTC |
Sprague SuzanneCOO & Global Head of Clearing
|
Tax withholdingCommon Stock Class A | 2,439 | $311.40 | $759,504.60 |
DisclosureSEC source: 0001628280-26-018542 · wk-form4_1773764630.xml · nonDerivative · entry 2 Sprague Suzanne · CIK 0001914409 · COO & Global Head of Clearing 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 13,912 F2 · shares: Ms. Sprague surrendered shares to the company in order to fulfill tax withholding obligations related to the receipt of the performance share award. Read SEC document |
| March 15, 2026 Filed Mar 17, 2026 16:23 UTC |
Sprague SuzanneCOO & Global Head of Clearing
|
GrantCommon Stock Class A | 5,504 | $311.40 | $1,713,945.60 |
DisclosureSEC source: 0001628280-26-018542 · wk-form4_1773764630.xml · nonDerivative · entry 1 Sprague Suzanne · CIK 0001914409 · COO & Global Head of Clearing 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 16,351 F1 · shares: Represents the vesting of performance shares granted in 2022 under CME Group's Omnibus Stock Plan. The number of shares was determined based on the company's achievement of total shareholder return relative to the S&P 500 measured over a three-year performance period from January 1, 2023 through December 31, 2025. Read SEC document |
| March 15, 2026 Filed Mar 17, 2026 16:24 UTC |
Marcus Jonathan LSr MD General Counsel
|
Tax withholdingCommon Stock Class A | 261 | $311.40 | $81,275.40 |
DisclosureSEC source: 0001628280-26-018544 · wk-form4_1773764642.xml · nonDerivative · entry 3 Marcus Jonathan L · CIK 0001952996 · Sr MD General Counsel 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 10,483 F3 · shares: Mr. Marcus surrendered shares to the company to fulfill tax withholding obligations upon the vesting of restricted stock on 3/15/2026. Read SEC document |
| March 15, 2026 Filed Mar 17, 2026 16:24 UTC |
Marcus Jonathan LSr MD General Counsel
|
Tax withholdingCommon Stock Class A | 2,377 | $311.40 | $740,197.80 |
DisclosureSEC source: 0001628280-26-018544 · wk-form4_1773764642.xml · nonDerivative · entry 2 Marcus Jonathan L · CIK 0001952996 · Sr MD General Counsel 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 10,744 F2 · shares: Mr. Marcus surrendered shares to the company in order to fulfill tax withholding obligations related to the receipt of the performance share award. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.