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CME CME Group Inc.
Insider figures are trailing 90 days, open-market Form 4 only. Institutional figures are the latest reported quarter. These windows are not simultaneous.
-$4.2M net selling - trailing 90 days
1 buyers - 2 unique sellers
Historical context: No open-market activity in Aug 2026 — insiders traded in 17 of the last 23 months (limited history)
10 accumulating - 4 trimming - 0 unchanged
14 comparable institutions - Q2 2026
open-market Form 4 only - grants, exercises, tax withholding excluded. ~ derived from SEC-reported shares x price.
Who is responsible
| Insider | Role | Net activity | Rows |
|---|---|---|---|
| DUFFY TERRENCE A | Chairman and CEO | -~$4.1M | 2 |
| Cook Elizabeth A | — | -~$0.1M | 1 |
| SHEPARD WILLIAM R | — | ~$78K | 2 |
Transactions
| Date | Insider | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 9/14/2026 | Cook Elizabeth A | — | S | -500 | 280.11 | ~$0.1M |
| 9/10/2026 | DUFFY TERRENCE A | Chairman and CEO | 2 reported sale rows | 15000 | — | ~$4.1M |
| 9/10/2026 | DUFFY TERRENCE A | Chairman and CEO | S | -14372 | 274.41 | ~$3.9M |
| 9/10/2026 | DUFFY TERRENCE A | Chairman and CEO | S | -628 | 275.03 | ~$0.2M |
| 6/25/2026 | SHEPARD WILLIAM R | — | 2 reported purchase rows | 339.09999999999997 | — | ~$78K |
| 6/25/2026 | SHEPARD WILLIAM R | — | P | 324.782 | 230.57 | ~$75K |
| 6/25/2026 | SHEPARD WILLIAM R | — | P | 14.318 | 230.57 | ~$3K |
| 5/18/2026 | Piell Hilda Harris | Sr MD & Chief HR Officer | S | -5753 | 304.63 | ~$1.8M |
| 5/15/2026 | DUFFY TERRENCE A | Chairman and CEO | 2 reported sale rows | 35000 | — | ~$10.4M |
| 5/15/2026 | DUFFY TERRENCE A | Chairman and CEO | S | -25996 | 298.14 | ~$7.8M |
| 5/15/2026 | DUFFY TERRENCE A | Chairman and CEO | S | -9004 | 299.58 | ~$2.7M |
| 3/26/2026 | SHEPARD WILLIAM R | — | 2 reported purchase rows | 1469.84 | — | ~$0.4M |
| 3/26/2026 | SHEPARD WILLIAM R | — | P | 1407.78 | 297.38 | ~$0.4M |
| 3/26/2026 | SHEPARD WILLIAM R | — | P | 62.06 | 297.38 | ~$18K |
| 3/17/2026 | Marcus Jonathan L | Sr MD General Counsel | 2 reported sale rows | 6582 | — | ~$2.1M |
| 3/17/2026 | Marcus Jonathan L | Sr MD General Counsel | S | -3291 | 313.37 | ~$1.0M |
| 3/17/2026 | Marcus Jonathan L | Sr MD General Counsel | S | -3291 | 333.37 | ~$1.1M |
| 3/12/2026 | Vroman Ken | Chief Transformation Officer | S | -5160 | 309 | ~$1.6M |
| 3/6/2026 | Cook Elizabeth A | — | S | -1000 | 320 | ~$0.3M |
| 2/23/2026 | Durkin Bryan T | — | S | -4200 | 309.65 | ~$1.3M |
| 2/20/2026 | GEPSMAN MARTIN J | — | S | -300 | 305.9 | ~$92K |
| 2/6/2026 | Suskind Dennis | — | S | -748 | 300 | ~$0.2M |
| 12/30/2025 | SHEPARD WILLIAM R | — | 2 reported purchase rows | 262.27 | — | ~$73K |
| 12/30/2025 | SHEPARD WILLIAM R | — | P | 251.21 | 278.37 | ~$70K |
| 12/30/2025 | SHEPARD WILLIAM R | — | P | 11.06 | 278.37 | ~$3K |
| 12/11/2025 | DUFFY TERRENCE A | Chairman and CEO | 2 reported sale rows | 25000 | — | ~$6.7M |
| 12/11/2025 | DUFFY TERRENCE A | Chairman and CEO | S | -11911 | 270.05 | ~$3.2M |
| 12/11/2025 | DUFFY TERRENCE A | Chairman and CEO | S | -13089 | 269.1 | ~$3.5M |
| 11/20/2025 | Sammann Derek | Sr MD Gl Hd Commodities Mkts | 2 reported sale rows | 7200 | — | ~$2.0M |
| 11/20/2025 | Sammann Derek | Sr MD Gl Hd Commodities Mkts | S | -5886 | 275.65 | ~$1.6M |
| 11/20/2025 | Sammann Derek | Sr MD Gl Hd Commodities Mkts | S | -1314 | 275.74 | ~$0.4M |
| 11/3/2025 | Ford Harold Eugene Jr. | — | S | -1000 | 263.53 | ~$0.3M |
| 9/25/2025 | SHEPARD WILLIAM R | — | 2 reported purchase rows | 274.03499999999997 | — | ~$73K |
| 9/25/2025 | SHEPARD WILLIAM R | — | P | 262.465 | 265.19 | ~$70K |
| 9/25/2025 | SHEPARD WILLIAM R | — | P | 11.57 | 265.219 | ~$3K |
| 9/18/2025 | Marcus Jonathan L | Sr MD General Counsel | S | -392 | 262 | ~$0.1M |
| 9/16/2025 | Marcus Jonathan L | Sr MD General Counsel | S | -376 | 258.96 | ~$97K |
| 9/16/2025 | McCourt Timothy Francis | Sr MD Global Head Equity & FX | S | -379 | 259.83 | ~$98K |
| 8/26/2025 | Cutinho Sunil | Chief Information Officer | 2 reported sale rows | 11896 | — | ~$3.2M |
| 8/26/2025 | Cutinho Sunil | Chief Information Officer | S | -5966 | 270.85 | ~$1.6M |
| 8/26/2025 | Cutinho Sunil | Chief Information Officer | S | -5930 | 272.1 | ~$1.6M |
| 6/25/2025 | SHEPARD WILLIAM R | — | 2 reported purchase rows | 267.387 | — | ~$72K |
| 6/25/2025 | SHEPARD WILLIAM R | — | P | 11.29 | 270.53 | ~$3K |
| 6/25/2025 | SHEPARD WILLIAM R | — | P | 256.097 | 270.53 | ~$69K |
| 6/10/2025 | Carey Charles P | — | 2 reported sale rows | 500 | — | ~$0.1M |
| 6/10/2025 | Carey Charles P | — | S | -150 | 265.36 | ~$40K |
| 6/10/2025 | Carey Charles P | — | S | -350 | 265.35 | ~$93K |
| 5/22/2025 | Kaye Daniel G | — | S | -500 | 282.4193 | ~$0.1M |
| 5/20/2025 | Marcus Jonathan L | Sr MD General Counsel | S | -390 | 277.5 | ~$0.1M |
| 5/19/2025 | Lockett Phyllis M | — | S | -1060 | 277.88 | ~$0.3M |
| 5/15/2025 | GEPSMAN MARTIN J | — | S | -300 | 273.17 | ~$82K |
| 5/15/2025 | Carey Charles P | — | S | -3000 | 272.56 | ~$0.8M |
| 5/5/2025 | Sammann Derek | Sr MD Gl Hd Commodities Mkts | 2 reported sale rows | 4650 | — | ~$1.3M |
| 5/5/2025 | Sammann Derek | Sr MD Gl Hd Commodities Mkts | S | -2475 | 280.6 | ~$0.7M |
| 5/5/2025 | Sammann Derek | Sr MD Gl Hd Commodities Mkts | S | -2175 | 280.6264 | ~$0.6M |
| 4/29/2025 | Suskind Dennis | — | S | -1000 | 271.28 | ~$0.3M |
| 4/25/2025 | GERDES LARRY G | — | S | -2000 | 266.1194 | ~$0.5M |
| 4/24/2025 | GERDES LARRY G | — | S | -1000 | 263.1 | ~$0.3M |
| 3/26/2025 | SHEPARD WILLIAM R | — | 2 reported purchase rows | 274.14 | — | ~$72K |
| 3/26/2025 | SHEPARD WILLIAM R | — | P | 262.56 | 262.62 | ~$69K |
| 3/26/2025 | SHEPARD WILLIAM R | — | P | 11.58 | 262.62 | ~$3K |
| 3/14/2025 | Lucas Deborah J | — | S | -1500 | 256.95 | ~$0.4M |
| 3/13/2025 | SIEGEL HOWARD J | — | S | -10000 | 260 | ~$2.6M |
| 3/11/2025 | DUFFY TERRENCE A | Chairman and CEO | S | -30000 | 259.18 | ~$7.8M |
| 3/3/2025 | Sprague Suzanne | COO & Global Head of Clearing | S | -1500 | 256.8329 | ~$0.4M |
| 2/27/2025 | Piell Hilda Harris | Sr MD & Chief HR Officer | S | -3984 | 250.465 | ~$1.0M |
| 2/13/2025 | Winkler Julie | Sr MD Chief Commercial Officer | S | -11592 | 249.17 | ~$2.9M |
| 2/13/2025 | Vroman Ken | Chief Transformation Officer | S | -5066 | 250 | ~$1.3M |
| 1/16/2025 | SHEPARD WILLIAM R | — | 4 reported purchase rows | 2851.36 | — | ~$0.6M |
| 1/16/2025 | SHEPARD WILLIAM R | — | P | 1362.12 | 227.96 | ~$0.3M |
| 1/16/2025 | SHEPARD WILLIAM R | — | P | 1368.84 | 227.96 | ~$0.3M |
| 1/16/2025 | SHEPARD WILLIAM R | — | P | 60.35 | 227.96 | ~$14K |
| 1/16/2025 | SHEPARD WILLIAM R | — | P | 60.05 | 227.96 | ~$14K |
| 12/27/2024 | SHEPARD WILLIAM R | — | 2 reported purchase rows | 276.02 | — | ~$64K |
| 12/27/2024 | SHEPARD WILLIAM R | — | P | 264.365 | 232.89 | ~$62K |
| 12/27/2024 | SHEPARD WILLIAM R | — | P | 11.655 | 232.89 | ~$3K |
| 11/12/2024 | Cook Elizabeth A | — | S | -750 | 226.3347 | ~$0.2M |
| 11/4/2024 | GEPSMAN MARTIN J | — | S | -400 | 222.92 | ~$89K |
| 10/30/2024 | Cutinho Sunil | Chief Information Officer | S | -4500 | 226.6397 | ~$1.0M |
| 10/30/2024 | Bitsberger Timothy S. | — | S | -500 | 227.08 | ~$0.1M |
| 10/28/2024 | McCourt Timothy Francis | Sr MD Global Head Equity & FX | S | -1374 | 227.115 | ~$0.3M |
| 9/25/2024 | SHEPARD WILLIAM R | — | 2 reported purchase rows | 292.655 | — | ~$64K |
| 9/25/2024 | SHEPARD WILLIAM R | — | P | 12.357 | 218.5 | ~$3K |
| 9/25/2024 | SHEPARD WILLIAM R | — | P | 280.298 | 218.5 | ~$61K |
| 9/15/2024 | Fitzpatrick Lynne | Sr MD Chief Financial Officer | S | -754 | 216.99 | ~$0.2M |