Terrence A. Duffy, Chairman and CEO of CME Group Inc. ($CME), sold shares on the open market twice in the last year, totaling about $6.7 million. His most recent sale occurred on December 11, 2025. These sales rank him 1,546th among nearly 12,000 individual insiders by total value sold, below the average of $8.6 million across about six transactions per insider. Duffy made no open market purchases in the period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 15, 2026 | CME GROUP INC. | $CME | DUFFY TERRENCE A | Chairman and CEO | F | Common Stock Class A | 27866 | $311.40 | 90,630.0000 | 360,596,647 | 23.52% | 0.01% |
| March 15, 2026 | CME GROUP INC. | $CME | DUFFY TERRENCE A | Chairman and CEO | A | Common Stock Class A | 62902 | $311.40 | 118,496.0000 | 360,596,647 | 113.15% | 0.02% |
| Dec. 31, 2025 | CME GROUP INC. | $CME | DUFFY TERRENCE A | Chairman and CEO | F | Common Stock Class A | 10210 | $273.08 | 55,594.0000 | 360,596,647 | 15.52% | 0.00% |
| Dec. 11, 2025 | CME GROUP INC. | $CME | DUFFY TERRENCE A | Chairman and CEO | S | Common Stock Class A | 11911 | $270.05 | 65,804.0000 | 360,596,647 | 15.33% | 0.00% |
| Dec. 11, 2025 | CME GROUP INC. | $CME | DUFFY TERRENCE A | Chairman and CEO | S | Common Stock Class A | 13089 | $269.10 | 77,715.0000 | 360,596,647 | 14.41% | 0.00% |
| Sept. 15, 2025 | CME GROUP INC. | $CME | DUFFY TERRENCE A | Chairman and CEO | A | Common Stock Class A | 23180 | $258.83 | 90,804.0000 | 360,354,174 | 34.28% | 0.01% |
| March 15, 2025 | CME GROUP INC. | $CME | DUFFY TERRENCE A | Chairman and CEO | A | Common Stock Class A | 25887 | $258.68 | 79,092.0000 | 360,354,174 | 48.66% | 0.01% |
| March 15, 2025 | CME GROUP INC. | $CME | DUFFY TERRENCE A | Chairman and CEO | F | Common Stock Class A | 11468 | $258.68 | 67,624.0000 | 360,354,174 | 14.50% | 0.00% |
| March 11, 2025 | CME GROUP INC. | $CME | DUFFY TERRENCE A | Chairman and CEO | S | Common Stock Class A | 30000 | $259.18 | 53,205.0000 | 360,354,174 | 36.06% | 0.01% |
| Dec. 31, 2024 | CME GROUP INC. | $CME | DUFFY TERRENCE A | Chairman and CEO | F | Common Stock Class A | 11706 | $232.23 | 83,205.0000 | 0 | 12.33% | 0.00% |
| Sept. 16, 2024 | CME GROUP INC. | $CME | DUFFY TERRENCE A | Chairman and CEO | A | Common Stock Class A | 27456 | $218.53 | 94,911.0000 | 0 | 40.70% | 0.00% |
| April 29, 2024 | CME GROUP INC. | $CME | DUFFY TERRENCE A | Chairman and CEO | S | Common Stock Class A | 25216 | $211.44 | 67,455.0000 | 0 | 27.21% | 0.00% |
| April 29, 2024 | CME GROUP INC. | $CME | DUFFY TERRENCE A | Chairman and CEO | S | Common Stock Class A | 10708 | $210.20 | 92,671.0000 | 0 | 10.36% | 0.00% |
| April 29, 2024 | CME GROUP INC. | $CME | DUFFY TERRENCE A | Chairman and CEO | S | Common Stock Class A | 4076 | $209.52 | 103,379.0000 | 0 | 3.79% | 0.00% |
| March 15, 2024 | CME GROUP INC. | $CME | DUFFY TERRENCE A | Chairman and CEO | A | Common Stock Class A | 45359 | $217.50 | 127,550.0000 | 0 | 55.19% | 0.00% |
| March 15, 2024 | CME GROUP INC. | $CME | DUFFY TERRENCE A | Chairman and CEO | F | Common Stock Class A | 20095 | $217.50 | 107,455.0000 | 0 | 15.75% | 0.00% |
| Dec. 31, 2023 | CME GROUP INC. | $CME | DUFFY TERRENCE A | Chairman and CEO | F | Common Stock Class A | 12366 | $210.60 | 82,191.0000 | 0 | 13.08% | 0.00% |
| Sept. 15, 2023 | CME GROUP INC. | $CME | DUFFY TERRENCE A | Chairman and CEO | A | Common Stock Class A | 29012 | $206.82 | 94,557.0000 | 0 | 44.26% | 0.00% |
| Aug. 18, 2023 | CME GROUP INC. | $CME | DUFFY TERRENCE A | Chairman and CEO | S | Common Stock Class A | 30000 | $203.95 | 65,545.0000 | 0 | 31.40% | 0.00% |
| Dec. 31, 2022 | CME GROUP INC. | $CME | DUFFY TERRENCE A | Chairman and CEO | F | Common Stock Class A | 7167 | $168.16 | 108,909.0000 | 0 | 6.17% | 0.00% |
| Dec. 31, 2022 | CME GROUP INC. | $CME | DUFFY TERRENCE A | Chairman and CEO | F | Common Stock Class A | 13364 | $168.16 | 95,545.0000 | 0 | 12.27% | 0.00% |