| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| CRANE TIMOTHY | PRESIDENT & CEO, Director | 9700 WEST HIGGINS ROAD, 8TH FLOOR, ROSEMONT | /s/David A. Dykstra, Attorney-in-fact | 27 Feb 2026 | 0001501874 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | WTFC | Common Stock | Tax liability | $1,274,454 | -8,506 | -8.2% | $149.83 | 95,706 | 25 Feb 2026 | Direct |