| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| SCHROCK MICHAEL V | Director | 16100 S. LATHROP AVENUE, HARVEY | /s/ Daniel S. Kelly, Attorney-in-Fact for Michael V. Schrock | 30 May 2025 | 0001189053 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ATKR | Common Stock | Award | $0 | +9 | +0.04% | $0.000000 | 19,864 | 28 May 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. |