MT ▼ -3.9% - ArcelorMittal S.A. $MT - ArcelorMittal statement regarding missile strike on its Ukraine plant ArcelorMittal declined 3.9% following a statement regarding a missile strike on its Ukraine facility. The attack on key production infrastructure underscores the operational risks facing the steelmaker's operations in the conflict zone. 14-SEP-2026 08:58 AM ET