0001402829 2026-03-16 2026-03-16 0001402829 false 8-K/A 2026-03-16 ORION GROUP HOLDINGS, INC. DE 1-33891 26-0097459 2940 Riverby Road, Suite 400 Houston TX 77020 713 852-6500 false false false false Common stock, $0.01 par value per share ORN NYSE Common stock, $0.01 par value per share ORN false