| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Boege Kathleen M | EVP, CHIEF LEGAL OFC, AND SEC | 9700 WEST HIGGINS ROAD, 8TH FLOOR, ROSEMONT | /s/Kathleen M. Boege | 30 Jan 2026 | 0001567078 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | WTFC | Common Stock | Sale | $429,508 | -2,934 | -11% | $146.39 | 24,949 | 29 Jan 2026 | Direct | |
| transaction | WTFC | Common Stock | Sale | $302,400 | -2,066 | -8.3% | $146.37 | 22,883 | 29 Jan 2026 | Direct |