Vroman Ken, Chief Transformation Officer at CME Group ($CME), made one open market sale of common shares in the last year, totaling $1.6 million. His most recent transaction occurred on March 12, 2026. This activity ranks 3,929th among 11,678 insiders in our database by sale value, compared to an average of $8.6 million across about 6.4 transactions per insider. Vroman Ken recorded no open market purchases during this 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 | Vroman Ken | Chief Transformation Officer | A | Common Stock Class A | 7076 | $311.40 | 21,986.0000 | 360,596,647 | 47.46% | 0.00% |
| March 15, 2026 | CME GROUP INC. | $CME | Vroman Ken | Chief Transformation Officer | F | Common Stock Class A | 3135 | $311.40 | 18,851.0000 | 360,596,647 | 14.26% | 0.00% |
| March 12, 2026 | CME GROUP INC. | $CME | Vroman Ken | Chief Transformation Officer | S | Common Stock Class A | 5160 | $309.00 | 14,910.0000 | 360,596,647 | 25.71% | 0.00% |
| Sept. 15, 2025 | CME GROUP INC. | $CME | Vroman Ken | Chief Transformation Officer | F | Common Stock Class A | 971 | $258.83 | 17,787.0000 | 360,354,174 | 5.18% | 0.00% |
| Sept. 16, 2025 | CME GROUP INC. | $CME | Vroman Ken | Chief Transformation Officer | F | Common Stock Class A | 325 | $259.83 | 20,070.0000 | 360,354,174 | 1.59% | 0.00% |
| Sept. 15, 2025 | CME GROUP INC. | $CME | Vroman Ken | Chief Transformation Officer | A | Common Stock Class A | 2608 | $258.83 | 20,395.0000 | 360,354,174 | 14.66% | 0.00% |
| March 15, 2025 | CME GROUP INC. | $CME | Vroman Ken | Chief Transformation Officer | A | Common Stock Class A | 3668 | $258.68 | 20,383.0000 | 360,354,174 | 21.94% | 0.00% |
| March 15, 2025 | CME GROUP INC. | $CME | Vroman Ken | Chief Transformation Officer | F | Common Stock Class A | 1625 | $258.68 | 18,758.0000 | 360,354,174 | 7.97% | 0.00% |
| Feb. 13, 2025 | CME GROUP INC. | $CME | Vroman Ken | Chief Transformation Officer | S | Common Stock Class A | 5066 | $250.00 | 16,715.0000 | 360,354,174 | 23.26% | 0.00% |
| Sept. 15, 2024 | CME GROUP INC. | $CME | Vroman Ken | Chief Transformation Officer | F | Common Stock Class A | 1292 | $216.99 | 18,693.0000 | 0 | 6.46% | 0.00% |
| Sept. 16, 2024 | CME GROUP INC. | $CME | Vroman Ken | Chief Transformation Officer | A | Common Stock Class A | 3088 | $218.53 | 21,781.0000 | 0 | 16.52% | 0.00% |
| March 15, 2024 | CME GROUP INC. | $CME | Vroman Ken | Chief Transformation Officer | F | Common Stock Class A | 104 | $217.50 | 19,985.0000 | 0 | 0.52% | 0.00% |
| March 15, 2024 | CME GROUP INC. | $CME | Vroman Ken | Chief Transformation Officer | F | Common Stock Class A | 2345 | $217.50 | 20,089.0000 | 0 | 10.45% | 0.00% |
| March 15, 2024 | CME GROUP INC. | $CME | Vroman Ken | Chief Transformation Officer | A | Common Stock Class A | 5292 | $217.50 | 22,434.0000 | 0 | 30.87% | 0.00% |
| Sept. 15, 2023 | CME GROUP INC. | $CME | Vroman Ken | Chief Transformation Officer | F | Common Stock Class A | 1010 | $206.82 | 17,247.0000 | 0 | 5.53% | 0.00% |
| Sept. 16, 2023 | CME GROUP INC. | $CME | Vroman Ken | Chief Transformation Officer | F | Common Stock Class A | 105 | $206.82 | 17,142.0000 | 0 | 0.61% | 0.00% |
| Sept. 15, 2023 | CME GROUP INC. | $CME | Vroman Ken | Chief Transformation Officer | A | Common Stock Class A | 3264 | $206.82 | 18,257.0000 | 0 | 21.77% | 0.00% |
| March 16, 2023 | CME GROUP INC. | $CME | Vroman Ken | Chief Transformation Officer | F | Common Stock Class A | 108 | $187.21 | 14,993.0000 | 0 | 0.72% | 0.00% |