| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Tobin Jack J | MD Chief Accounting Officer | 20 S. WACKER DRIVE, CHICAGO | By: Margaret Austin Wright for Jack J. Tobin | 12 Mar 2026 | 0001638430 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | CME | Common Stock Class A | Gift | -105 | -0.42% | $0.000000* | 24,980 | 11 Mar 2026 | Direct |