https://www.reuters.com/article/us-telecom-italia-elliott-stake-report/activist-fund-elliott-has-6-percent-of-telecom-italia-la-repubblica-website-idUSKCN1GI0ZI >Activist investor Elliott Management has bought 6 percent of Telecom Italia and plans to challenge top shareholder Vivendi by presenting an alternative business plan for the Italian phone group, la Repubblica daily reported on its website.