IRM ▼ -2.7% - Iron Mountain Incorporated $IRM - Iron Mountain Partners with the Opéra national de Paris to Preserve and Digitize its Visual Heritage Iron Mountain announced a partnership with the Opéra national de Paris to preserve and digitize the opera house's visual heritage, but the stock declined 2.7% today despite the business development news. 15-SEP-2026 03:01 AM ET