CME GROUP INC. (CME) Insider Transactions
Over the last 12 months, 30 CME GROUP INC. (CME) insiders filed 108 SEC Form 4 transactions — $655.1K in open-market purchases ( 1 distinct buyers) and $29.3M in open-market sales. 0% of all transactions were executed under a pre-scheduled Rule 10b5-1 trading plan.
- $655.1KOpen-market buys (1y)
- $29.3MOpen-market sells (1y)
- 30Distinct insiders
- 108Transactions filed
- 0%Under Rule 10b5-1 plan
- 2026-05-18Latest filing
Recent Form 4 Filings Most recent 50 of 108 (1-year window)
Each row is a single Form 4 filing event for CME, sourced directly from SEC EDGAR. The Type column classifies the SEC transaction code into Buy / Sell / Grant / Exercise / Other; the 10b5-1 badge marks trades executed under a pre-scheduled SEC Rule 10b5-1 plan.
| Date | Insider | Title | Type | SEC Code | Value | Shares | Price |
|---|---|---|---|---|---|---|---|
| 2026-05-18 | Piell Hilda Harris | Sr MD & Chief HR Officer | Sell | S | $1.8M | 5,753 | $304.63 |
| 2026-05-15 | DUFFY TERRENCE A | Chairman and CEO | Sell | S | $7.8M | 25,996 | $298.14 |
| 2026-05-15 | DUFFY TERRENCE A | Chairman and CEO | Sell | S | $2.7M | 9,004 | $299.58 |
| 2026-03-26 | SHEPARD WILLIAM R | — | Buy | P | $418.6K | 1,408 | $297.38 |
| 2026-03-26 | SHEPARD WILLIAM R | — | Buy | P | $18.5K | 62 | $297.38 |
| 2026-03-17 | Marcus Jonathan L | Sr MD General Counsel | Sell | — | $1.1M | 3,291 | $333.37 |
| 2026-03-15 | McCourt Timothy Francis | Sr MD Global Head Equity & FX | Grant | — | $1.7M | 5,504 | $311.40 |
| 2026-03-15 | McCourt Timothy Francis | Sr MD Global Head Equity & FX | Grant | — | $875.0K | 2,810 | $311.40 |
| 2026-03-15 | McCourt Timothy Francis | Sr MD Global Head Equity & FX | Grant | — | $29.3K | 94 | $311.40 |
| 2026-03-15 | Marcus Jonathan L | Sr MD General Counsel | Grant | — | $1.6M | 5,270 | $311.40 |
| 2026-03-15 | Marcus Jonathan L | Sr MD General Counsel | Grant | — | $740.2K | 2,377 | $311.40 |
| 2026-03-15 | Marcus Jonathan L | Sr MD General Counsel | Grant | — | $81.3K | 261 | $311.40 |
| 2026-03-15 | Piell Hilda Harris | Sr MD & Chief HR Officer | Grant | — | $2.2M | 7,076 | $311.40 |
| 2026-03-15 | Piell Hilda Harris | Sr MD & Chief HR Officer | Grant | — | $946.3K | 3,039 | $311.40 |
| 2026-03-15 | Sprague Suzanne | COO & Global Head of Clearing | Grant | — | $1.7M | 5,504 | $311.40 |
| 2026-03-15 | Sprague Suzanne | COO & Global Head of Clearing | Grant | — | $759.5K | 2,439 | $311.40 |
| 2026-03-15 | Sprague Suzanne | COO & Global Head of Clearing | Grant | — | $23.7K | 76 | $311.40 |
| 2026-03-15 | DUFFY TERRENCE A | Chairman and CEO | Grant | — | $19.6M | 62,902 | $311.40 |
| 2026-03-15 | DUFFY TERRENCE A | Chairman and CEO | Grant | — | $8.7M | 27,866 | $311.40 |
| 2026-03-15 | Vroman Ken | Chief Transformation Officer | Grant | — | $2.2M | 7,076 | $311.40 |
| 2026-03-15 | Vroman Ken | Chief Transformation Officer | Grant | — | $976.2K | 3,135 | $311.40 |
| 2026-03-15 | Winkler Julie | Sr MD Chief Commercial Officer | Grant | — | $2.6M | 8,256 | $311.40 |
| 2026-03-15 | Winkler Julie | Sr MD Chief Commercial Officer | Grant | — | $1.1M | 3,658 | $311.40 |
| 2026-03-15 | Sammann Derek | Sr MD Gl Hd Commodities Mkts | Grant | — | $2.6M | 8,256 | $311.40 |
| 2026-03-15 | Sammann Derek | Sr MD Gl Hd Commodities Mkts | Grant | — | $1.1M | 3,627 | $311.40 |
| 2026-03-15 | Fitzpatrick Lynne | President and CFO | Grant | — | $1.7M | 5,504 | $311.40 |
| 2026-03-15 | Fitzpatrick Lynne | President and CFO | Grant | — | $759.5K | 2,439 | $311.40 |
| 2026-03-15 | Fitzpatrick Lynne | President and CFO | Grant | — | $23.7K | 76 | $311.40 |
| 2026-03-15 | Tobin Jack J | MD Chief Accounting Officer | Grant | — | $189.3K | 608 | $311.40 |
| 2026-03-15 | Tobin Jack J | MD Chief Accounting Officer | Grant | — | $55.7K | 179 | $311.40 |
| 2026-03-15 | Cutinho Sunil | Chief Information Officer | Grant | — | $2.6M | 8,256 | $311.40 |
| 2026-03-15 | Cutinho Sunil | Chief Information Officer | Grant | — | $1.1M | 3,658 | $311.40 |
| 2026-03-12 | Vroman Ken | Chief Transformation Officer | Sell | — | $1.6M | 5,160 | $309.00 |
| 2026-03-11 | Tobin Jack J | MD Chief Accounting Officer | Grant | — | $0 | 105 | $0.00 |
| 2026-03-06 | Cook Elizabeth A | — | Sell | — | $320.0K | 1,000 | $320.00 |
| 2026-02-23 | Durkin Bryan T | — | Sell | — | $1.3M | 4,200 | $309.65 |
| 2026-02-20 | GEPSMAN MARTIN J | — | Sell | — | $91.8K | 300 | $305.90 |
| 2026-02-06 | Suskind Dennis | — | Sell | — | $224.4K | 748 | $300.00 |
| 2025-12-31 | DUFFY TERRENCE A | Chairman and CEO | Grant | — | $2.8M | 10,210 | $273.08 |
| 2025-12-30 | SHEPARD WILLIAM R | — | Buy | — | $3.1K | 11 | $278.37 |
| 2025-12-30 | SHEPARD WILLIAM R | — | Buy | — | $69.9K | 251 | $278.37 |
| 2025-12-11 | DUFFY TERRENCE A | Chairman and CEO | Sell | — | $3.5M | 13,089 | $269.10 |
| 2025-12-11 | DUFFY TERRENCE A | Chairman and CEO | Sell | — | $3.2M | 11,911 | $270.05 |
| 2025-11-20 | Sammann Derek | Sr MD Gl Hd Commodities Mkts | Sell | — | $1.6M | 5,886 | $275.65 |
| 2025-11-20 | Sammann Derek | Sr MD Gl Hd Commodities Mkts | Sell | — | $362.3K | 1,314 | $275.74 |
| 2025-11-07 | Piell Hilda Harris | Sr MD & Chief HR Officer | Grant | — | $0 | 973 | $0.00 |
| 2025-11-06 | Sammann Derek | Sr MD Gl Hd Commodities Mkts | Grant | — | $0 | 2,300 | $0.00 |
| 2025-11-06 | Sammann Derek | Sr MD Gl Hd Commodities Mkts | Grant | — | $0 | 2,300 | $0.00 |
| 2025-11-03 | Ford Harold Eugene Jr. | — | Sell | — | $263.5K | 1,000 | $263.53 |
| 2025-09-25 | SHEPARD WILLIAM R | — | Buy | — | $69.6K | 262 | $265.19 |
Showing the most recent 50 of 108 transactions. For the full 1-year history with sorting, filtering, and cross-ticker industry context, open the full insider transactions drilldown.
Top Insider Buyers of CME By dollar volume, 1-year window
- SHEPARD WILLIAM R $655.1K
Methodology & FAQ
How We Track CME Insider Transactions
Form 4 disclosures are sourced directly from SEC EDGAR and re-ingested on every pipeline cycle. A complete description of transaction-code handling, the open-market vs grant distinction, and the Rule 10b5-1 plan-reference heuristic is documented in the Methodology.
What is an SEC Form 4 filing for CME GROUP INC.?
Form 4 is a transaction-level disclosure that corporate insiders — officers, directors, and beneficial owners of more than 10% of a registered class of equity securities — must file with the SEC within two business days of any change in their beneficial ownership of CME GROUP INC. (CME) shares.
What is a Rule 10b5-1 trading plan?
Rule 10b5-1 is an SEC rule that lets insiders schedule trades in advance under a written plan, providing an affirmative defense against insider-trading allegations as long as the plan was adopted in good faith and not while in possession of material non-public information. Form 4 rows marked "10b5-1" on this page indicate the underlying trade was executed under such a plan; rows without the badge are discretionary or did not reference a plan in the Form 4 footnotes.
How is "insider buying" different from a stock grant or option exercise?
An insider buy (SEC transaction code P) is an open-market purchase of CME GROUP INC. (CME) stock executed at the prevailing market price using the insider's personal capital. Stock grants (code A) and option exercises (code M) are compensation events, not directional trades; they are tracked separately and excluded from the "conviction" signal because they are not discretionary purchases.
How recent is the data?
Form 4 transactions are typically reported within two business days of execution. Pactolio re-ingests the EDGAR feed on a nightly cycle and reflects new filings on the next ingest run, typically within 24 hours of EDGAR acceptance. The table on this page covers the most recent 1-year window.