SEC Insider Transactions from SHEPARD WILLIAM R.

Last updated: 2026-03-30 23:09 UTC | Total transactions: 45

Director William R. Shepard bought CME Group Inc. ($CME) shares on the open market eight times in the last year, for a total of nearly $290,000. His most recent purchase was on December 30, 2025. These buys rank him 1,188th among nearly 5,000 insiders by purchase value, below the average of about $1.5 million across 3.3 transactions per insider. Shepard made no open market sales in the period.

Set Up your own filters →
Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
March 26, 2026 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 62 $297.38 262,656.9900 360,596,647 0.02% 0.00%
March 26, 2026 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 1408 $297.38 262,656.9900 360,596,647 0.54% 0.00%
Dec. 30, 2025 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 251 $278.37 261,187.1500 360,596,647 0.10% 0.00%
Dec. 30, 2025 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 11 $278.37 261,187.1500 360,596,647 0.00% 0.00%
Sept. 25, 2025 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 262 $265.19 260,924.8820 360,354,174 0.10% 0.00%
Sept. 25, 2025 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 12 $265.22 260,924.8820 360,354,174 0.00% 0.00%
June 25, 2025 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 11 $270.53 260,650.8470 360,354,174 0.00% 0.00%
June 25, 2025 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 256 $270.53 260,650.8470 360,354,174 0.10% 0.00%
June 25, 2025 CME GROUP INC. $CME SHEPARD WILLIAM R Director A Common Stock Class A 879 $273.03 260,394.7500 360,354,174 0.34% 0.00%
March 26, 2025 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 263 $262.62 259,504.4600 360,354,174 0.10% 0.00%
Jan. 16, 2025 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 1362 $227.96 259,230.3200 0 0.53% 0.00%
Jan. 16, 2025 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 60 $227.96 259,230.3200 0 0.02% 0.00%
March 26, 2025 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 12 $262.62 259,504.4600 360,354,174 0.00% 0.00%
Jan. 16, 2025 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 1369 $227.96 259,237.3400 0 0.53% 0.00%
Jan. 16, 2025 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 60 $227.96 259,237.3400 0 0.02% 0.00%
Dec. 27, 2024 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 264 $232.89 257,808.1500 0 0.10% 0.00%
Dec. 27, 2024 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 12 $232.89 257,808.1500 0 0.00% 0.00%
Sept. 25, 2024 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 12 $218.50 257,532.1253 0 0.00% 0.00%
Sept. 25, 2024 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 280 $218.50 257,532.1253 0 0.11% 0.00%
June 25, 2024 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 14 $195.07 257,239.4703 0 0.01% 0.00%
June 25, 2024 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 312 $195.07 256,002.4703 0 0.12% 0.00%
June 25, 2024 CME GROUP INC. $CME SHEPARD WILLIAM R Director A Common Stock Class A 1237 $194.10 257,239.4703 0 0.48% 0.00%
March 26, 2024 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 282 $214.71 255,676.5923 0 0.11% 0.00%
March 26, 2024 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 12 $214.71 255,676.5923 0 0.00% 0.00%
Jan. 18, 2024 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 1331 $202.44 255,382.0963 0 0.52% 0.00%
Jan. 18, 2024 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 59 $202.44 255,382.0963 0 0.02% 0.00%
Dec. 28, 2023 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 266 $210.79 253,992.2113 0 0.11% 0.00%
Dec. 28, 2023 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 12 $210.79 253,992.2113 0 0.00% 0.00%
Sept. 27, 2023 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 12 $199.84 253,713.9913 0 0.00% 0.00%
Sept. 27, 2023 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 280 $199.84 253,713.9913 0 0.11% 0.00%
June 26, 2023 CME GROUP INC. $CME SHEPARD WILLIAM R Director A Common Stock Class A 811 $178.89 253,113.2713 0 0.32% 0.00%
June 27, 2023 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 309 $179.77 253,422.1283 0 0.12% 0.00%
June 27, 2023 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 14 $179.77 253,422.1283 0 0.01% 0.00%
Jan. 18, 2023 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 55 $175.98 251,782.8030 0 0.02% 0.00%
Jan. 18, 2023 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 1244 $175.98 251,782.8030 0 0.50% 0.00%
Dec. 28, 2022 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 289 $168.11 250,344.1880 0 0.12% 0.00%
Dec. 28, 2022 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 13 $168.11 251,727.9640 0 0.01% 0.00%
Dec. 29, 2022 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 195 $168.67 248,326.7529 0 0.08% 0.00%
March 28, 2023 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 195 $186.45 252,288.6553 0 0.08% 0.00%
March 27, 2023 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 298 $185.32 252,093.7680 0 0.12% 0.00%
March 27, 2023 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 13 $185.32 252,288.6553 0 0.01% 0.00%
Jan. 18, 2023 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 55 $175.98 251,588.1110 0 0.02% 0.00%
Jan. 18, 2023 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 1244 $175.98 251,588.1110 0 0.50% 0.00%
Dec. 28, 2022 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 13 $168.11 251,533.2720 0 0.01% 0.00%
Dec. 28, 2022 CME GROUP INC. $CME SHEPARD WILLIAM R Director P Common Stock Class A 289 $168.11 250,344.1880 0 0.12% 0.00%