| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Pregenzer John W | COO & President, Electrical | 16100 S LATHROP AVENUE, HARVEY | /s/Daniel S. Kelly, Attorney-in-Fact for John W. Pregenzer | 03 Sep 2025 | 0001825727 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ATKR | Common Stock | Award | $0 | +97.8 | +0.22% | $0.00 | 44.7K | 29 Aug 2025 | Direct | F1, F2 |
| Id | Content |
|---|---|
| F1 | Represents dividend equivalent units accrued on unvested restricted stock units ("RSUs"). |
| F2 | Includes unvested restricted stock units ("RSUs") and amounts accrued for dividend equivalent units on such RSUs. |