Atkore Inc. — Director's Dealing 2025

Nov 17, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Atkore Inc. (ATKR)
CIK: 0001666138
Period of Report: 2025-11-13

Reporting Person: Lamps Mark F. (Pres. Safety & Infrastructure)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-11-13	Common Stock	F	604	$64.83	Disposed	30923.126	Direct
2025-11-17	Common Stock	S	1000	$64.75	Disposed	29923.126	Direct

Footnotes

F1: Securities withheld to pay withholding taxes on vested restricted stock units exempt under Rule 16b-3.

F2: Includes unvested restricted stock units ("RSUs") and amounts accrued for dividend equivalent units on such RSUs.

F3: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 6, 2025.