| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| MUSE SCOTT H | Director | 16100 SOUTH LATHROP AVENUE, HARVEY | /s/ Daniel S. Kelly, Attorney-in-Fact for Scott H. Muse | 2025-09-03 | 0001224118 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ATKR | Common Stock | Award | $0 | +142 | +0.48% | $0.00 | 30K | Aug 29, 2025 | Direct | F1, F2 |
| Id | Content |
|---|---|
| F1 | Represents dividend equivalent units accrued on unvested or deferred restricted stock units ("RSUs"). |
| F2 | Includes unvested or deferred restricted stock units ("RSUs") and amounts accrued for dividend equivalent units on such RSUs. |