| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| ENGEL JOHN | Chairman, President & CEO | 225 WEST STATION SQUARE DRIVE, SUITE 700, PITTSBURGH | /s/ Michele Nelson, as Attorney-in-Fact | 11 Dec 2025 | 0001278669 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | WCC | Common Stock | Tax liability | $111,346 | -402 | -0.08% | $276.98 | 475,625 | 10 Dec 2025 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | The reported transaction involved the withholding of 402 shares of stock issuable upon the early vesting of an equal number of restricted stock units to pay taxes associated with the reporting person becoming retirement eligible. The total reported in Column 5 includes 25,551.749 previously reported restricted stock units. |