| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Castillo Daniel J | EVP & GM, EES | 225 WEST STATION SQUARE DRIVE, SUITE 700, PITTSBURGH | /s/ Michele Nelson, as Attorney-in-Fact | 2025-09-11 | 0001535412 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | WCC | Common Stock | Award | $0 | +12.2K | $0.00 | 12.2K | Sep 11, 2025 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | Represents a grant of restricted stock units ("RSUs"). Each RSU represents a contingent right to acquire one share of Issuer's common stock. The RSUs vest in three equal installments beginning on the first anniversary of the date of grant. |