It is the latest salvo in a four-year campaign by Dutch fund group PGGM and Britain's Railways Pension Trustee Company Ltd, known as Railpen, against Ellison and his company's governance, which has so far brought no response at all from Oracle, and only limited support from other shareholders. In a letter addressed to the Oracle board that was seen by Reuters, the shareholders demanded that Oracle "address board accountability by implementing proxy access" and "implement a compensation structure that shareholders can support".