| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Hahnfeld Jeffrey D | EVP-CONTROLLER & CHIEF ACC OFF | 9700 WEST HIGGINS ROAD, 8TH FLOOR, ROSEMONT | /s/David A. Dykstra, Attorney-in-fact | 27 Feb 2026 | 0001977046 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | WTFC | Common Stock | Tax liability | $33,262 | -222 | -11% | $149.83 | 1,725 | 25 Feb 2026 | Direct |