X0508 4 2026-01-29 0 0001666138 Atkore Inc. ATKR 0001845216 Edmonds Franklin S. Jr. 16100 S. LATHROP AVENUE HARVEY IL 60426 1 0 0 0 0 Common Stock 2026-01-29 4 A 0 2808 0 A 2808 D Reflects the award of restricted stock units, which are scheduled to vest based on continued service as a Director on the earlier of (a) the day immediately preceding the first anniversary of the grant date and (b) the day immediately preceding the Atkore Inc. annual meeting of stockholders next following the grant date. This award includes a prorated amount of restricted stock units for Director services rendered in calendar year 2025. Includes unvested or deferred restricted stock units ("RSUs"). /s/ Daniel S. Kelly, Attorney-in-Fact for Franklin S. Edmonds, Jr. 2026-02-02