FinanceKristian Siem’s Subsea7 pulls DOF takeover offer with ‘constructive dialogue’ broadside at the boardCompany ‘not prepared’ to amend its initial buyout bid, it claims just days after initial approach.Leading light: Subsea 7 chairman Kristian Siem.Photo: KAIA MEANS/UPSTREAMDavide GhilottiLondon