SUBSEQUENT EVENTS

12 Months Ended

Sep. 30, 2025

Subsequent Events [Abstract]

SUBSEQUENT EVENTS

19. SUBSEQUENT EVENTS

On November 18, 2025, Atkore’s Board of Directors declared a quarterly cash dividend of $0.33 per share of common stock payable on December 17, 2025, to stockholders of record on December 5, 2025.

On November 20, 2025, the Company announced it was expanding the scope of its previously announced review of strategic alternatives to include assets outside of its core electrical infrastructure portfolio. As part of this expanded review, the Company will consider a broader range of alternatives, including, among other things, a potential sale or merger of the whole company.

On November 20, 2025, the Company announced that it has entered into a cooperation agreement (the “Cooperation Agreement”) with Irenic Capital Management LP and certain of its affiliates (collectively, “Irenic”).

Pursuant to the Cooperation Agreement, the Company has agreed to, among other things: (i) increase the size of the Company’s Board of Directors (the “Board”) by one (1) director and appoint Franklin S. Edmonds, Jr. (the “New Director”) to the Board to fill the vacancy created by such increase, with an initial term expiring at the Company’s 2026 annual meeting of stockholders (the “2026 Annual Meeting”), (ii) establish a committee of the Board (the “Strategic Review Committee”) consisting of no more than five (5) directors, including the New Director, to oversee, evaluate and provide advice to the Board regarding its review of strategic alternatives and (iii) on or prior to May 20, 2026, under certain circumstances as described in the Cooperation Agreement, increase the size of the Board by one (1) director and appoint a new director to be mutually agreed upon by the Board and Irenic, provided that at such time Irenic beneficially owns a “net long position” of, or has aggregate net long economic exposure to, at least 1.5% of the Company’s then outstanding common stock. Pursuant to the Cooperation Agreement, the Company has also agreed to nominate the New Director for election to the Board at the 2026 Annual Meeting.