Click to view a price quote on CS. Click to research the Banking industry. : Swiss hedge fund RBR Capital Advisors AG is set to unleash an activist campaign seeking to break up Credit Suisse AG (CS) . The occasionally activist fund recently accumulated a stake of between 0.2% and 0.3% and has put together a presentation it will release on Friday seeking to divide up the large institution into three parts, according to sources and a Financial Times report Tuesday, Oct. 17.