According to reports, New York-based jeweller Tiffany & Co will consider suggestions on strategy from its largest shareholder Trian Fund Management GP LLC, which acquired a 5.5 per cent stake (7.5 million shares) in the company, according to a filing with the US Securities and Exchange Commission (SEC).%%Trian, an investment firm controlled by the activist billionaire investor Nelson Peltz, said it will not seek a seat on the company board after Tiffany agreed to discuss ideas and strategies to improve its financial performance and to broaden the brand.%%For the past twenty years, Peltz bought struggling businesses, turned them around and sold them a few years later for large profits. But now as an activist investor, he acquires an equity stake in a corporation through his $1 billion hedge fund to put public pressure on its management for change.%%Following the news, Tiffany’s shares rose by 5 per cent to a three-year high of $45.06, raising its market capitalisation to $6 billion.