Herald Investment Management LTD Has Upped Its Stake in Materialise Nv (MTLS) as Shares Declined; As Visa (V) Stock Declined, Markel Has Increased Position The FinExaminerHerald Investment Management Ltd increased its stake in Materialise Nv (MTLS) by 128.61% based on its latest 2018Q3 regulatory filing with the SEC. Herald ...


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