Retail Opportunity Investments Great West Life Assurance Co. Can bought a new stake in shares of Retail Opportunity Investments Corp. ( – ) in the third quarter, according to the company in its most recent 13F filing with the Securities & Exchange Commission. The institutional investor bought 255,129 shares of the real estate investment trust’s stock, valued at approximately $3,510,000. Great West Life Assurance Co. Can owned approximately 0.20% of Retail Opportunity Investments as of its most recent SEC filing.