0000102729 2026-05-26 2026-05-26 0000102729 false 8-K 2026-05-26 Valmont Industries, Inc. DE 1-31429 47-0351813 15000 Valmont Plaza 68154 Omaha NE 402 963-1000 false false false false Common Stock, $1.00 par value VMI NYSE false