Atkore clears HSR review, but Prysmian deal still awaits shareholder vote

Atkore is transitioning from a standalone electrical-infrastructure manufacturer toward becoming part of Prysmian’s broader electrification and data-center infrastructure platform. The merger clears one important procedural hurdle, not the deal itself. The Hart-Scott-Rodino waiting period expired at 11:59 p.m. Eastern Time on September 14, 2026. 〔0〕

The business outcome is still unchanged. Atkore’s stockholders must approve the merger, and other regulatory and customary closing conditions remain outstanding. 〔1〕 Because the transaction was already announced and the HSR review was a known closing step, this filing confirms expected progress rather than changing the strategic or financial terms.

Bottom line: This is routine deal progression: Prysmian’s acquisition is one step closer, but the filing does not materially alter the path, price, or remaining execution risk of the transaction.