Piell Hilda Harris has filed 21 insider transactions across 1 company since August 2023.
Most recent transaction: a grant/award of 7076 shares of CME GROUP INC. ($CME) on March 15, 2026.
Activity breakdown: 0 open-market purchases and 6 sales.
| 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 | Piell Hilda Harris | Sr MD & Chief HR Officer | A | Common Stock Class A | 7076 | $311.40 | 36,494.0000 | 360,596,647 | 24.05% | 0.00% |
| March 15, 2026 | CME GROUP INC. | $CME | Piell Hilda Harris | Sr MD & Chief HR Officer | F | Common Stock Class A | 3039 | $311.40 | 33,455.0000 | 360,596,647 | 8.33% | 0.00% |
| Nov. 7, 2025 | CME GROUP INC. | $CME | Piell Hilda Harris | Sr MD & Chief HR Officer | G | Common Stock Class A | 973 | $0.00 | 29,418.0000 | 360,596,647 | 3.20% | 0.00% |
| Sept. 16, 2025 | CME GROUP INC. | $CME | Piell Hilda Harris | Sr MD & Chief HR Officer | F | Common Stock Class A | 325 | $259.83 | 30,391.0000 | 360,354,174 | 1.06% | 0.00% |
| Sept. 15, 2025 | CME GROUP INC. | $CME | Piell Hilda Harris | Sr MD & Chief HR Officer | F | Common Stock Class A | 953 | $258.83 | 28,108.0000 | 360,354,174 | 3.28% | 0.00% |
| Sept. 15, 2025 | CME GROUP INC. | $CME | Piell Hilda Harris | Sr MD & Chief HR Officer | A | Common Stock Class A | 2608 | $258.83 | 30,716.0000 | 360,354,174 | 9.28% | 0.00% |
| March 15, 2025 | CME GROUP INC. | $CME | Piell Hilda Harris | Sr MD & Chief HR Officer | F | Common Stock Class A | 1436 | $258.68 | 29,061.0000 | 360,354,174 | 4.71% | 0.00% |
| March 15, 2025 | CME GROUP INC. | $CME | Piell Hilda Harris | Sr MD & Chief HR Officer | A | Common Stock Class A | 3451 | $258.68 | 30,497.0000 | 360,354,174 | 12.76% | 0.00% |
| Feb. 27, 2025 | CME GROUP INC. | $CME | Piell Hilda Harris | Sr MD & Chief HR Officer | S | Common Stock Class A | 3984 | $250.47 | 27,046.0000 | 360,354,174 | 12.84% | 0.00% |
| Sept. 15, 2024 | CME GROUP INC. | $CME | Piell Hilda Harris | Sr MD & Chief HR Officer | F | Common Stock Class A | 1314 | $216.99 | 27,942.0000 | 0 | 4.49% | 0.00% |
| Sept. 16, 2024 | CME GROUP INC. | $CME | Piell Hilda Harris | Sr MD & Chief HR Officer | A | Common Stock Class A | 3088 | $218.53 | 31,030.0000 | 0 | 11.05% | 0.00% |
| May 8, 2024 | CME GROUP INC. | $CME | Piell Hilda Harris | Sr MD & Chief HR Officer | S | Common Stock Class A | 300 | $210.40 | 36,096.0000 | 0 | 0.82% | 0.00% |
| May 8, 2024 | CME GROUP INC. | $CME | Piell Hilda Harris | Sr MD & Chief HR Officer | S | Common Stock Class A | 3030 | $210.38 | 32,566.0000 | 0 | 8.51% | 0.00% |
| May 8, 2024 | CME GROUP INC. | $CME | Piell Hilda Harris | Sr MD & Chief HR Officer | S | Common Stock Class A | 3310 | $210.31 | 29,256.0000 | 0 | 10.16% | 0.00% |
| May 8, 2024 | CME GROUP INC. | $CME | Piell Hilda Harris | Sr MD & Chief HR Officer | S | Common Stock Class A | 500 | $210.39 | 35,596.0000 | 0 | 1.39% | 0.00% |
| March 15, 2024 | CME GROUP INC. | $CME | Piell Hilda Harris | Sr MD & Chief HR Officer | F | Common Stock Class A | 2603 | $217.50 | 36,396.0000 | 0 | 6.67% | 0.00% |
| March 15, 2024 | CME GROUP INC. | $CME | Piell Hilda Harris | Sr MD & Chief HR Officer | A | Common Stock Class A | 6047 | $217.50 | 38,999.0000 | 0 | 18.35% | 0.00% |
| Sept. 15, 2023 | CME GROUP INC. | $CME | Piell Hilda Harris | Sr MD & Chief HR Officer | A | Common Stock Class A | 3264 | $206.82 | 34,164.0000 | 0 | 10.56% | 0.00% |
| Sept. 15, 2023 | CME GROUP INC. | $CME | Piell Hilda Harris | Sr MD & Chief HR Officer | F | Common Stock Class A | 945 | $206.82 | 33,219.0000 | 0 | 2.77% | 0.00% |
| Sept. 16, 2023 | CME GROUP INC. | $CME | Piell Hilda Harris | Sr MD & Chief HR Officer | F | Common Stock Class A | 267 | $206.82 | 32,952.0000 | 0 | 0.80% | 0.00% |
| Aug. 7, 2023 | CME GROUP INC. | $CME | Piell Hilda Harris | Sr MD & Chief HR Officer | S | Common Stock Class A | 4477 | $207.98 | 30,900.0000 | 0 | 12.66% | 0.00% |