RBOS said its claim was lodged with the taxpayer-payer backed bank and in London's High Court on Wednesday. It includes the claims of more than 100 institutional investors who lost money in its 2008 fundraising, as well as thousands of small shareholders. RBS launched a £12 billion rights issue in 2008 to shore up its balance sheet after its disastrous acquisition of Dutch bank ABN Amro, but just months later it was part-nationalised in a £45 billion government bailout. Alongside Mr Goodwin, the group is also starting proceedings against former RBS chairman Tom McKillop, former investment bank boss Johnny Cameron and ex-finance director Guy Whittaker. The claim is the second in recent days to be lodged against RBS after a group of 21 claimants launched a multimillion-pound lawsuit last week, also over its 2008 cash call. RBS declined to comment.