20180126Avista to Staff_DR_004.docx

AVISTA CORP.
RESPONSE TO REQUEST FOR INFORMATION
JURISDICTION:OregonDATE PREPARED:9/26/2017
CASE NO.:UM1897WITNESS:Mark Thies
REQUESTER:PUC StaffRESPONDER:Lauren PendergraftTYPE:Data RequestDEPT:Finance
REQUEST NO.:Staff– 004(AVA)TELEPHONE:[phone]EMAIL: [e-mail]:Please provide a MS Excel spreadsheet calculating the shareholder gain in percent-terms and dollar-terms from the Hydro One offer, showing each source and timing of market data used.RESPONSE:
As outlined in Avista/300 Thies/Page 10, the $53.00 per share merger consideration represents a twenty-four percent (24%) premium to Avista's closing price on July 18, 2017 of $42.74 per share. See Staff_DR_004(AVA) Attachment A for the calculation.