Uniper investment In September 2017, Fortum announced it had signed a transaction agreement with E.ON under which E.ON had the right to decide to tender its 46.65% shareholding in Uniper SE into Fortum’s public takeover offer. In November, Fortum launched a voluntary public takeover offer to all Uniper shareholders at a total value of EUR 22 per share implying a premium of 36% to the price prior to intense market speculation on a potential transaction at the end of May. The offer is subject to competition and regulatory approvals. Already in October 2017, Fortum received approval from the US competition authorities. Fortum expects to finalise the transaction in mid-2018.