MRM is a publicly traded real estate investment firm that acquires and manages... MRM is a publicly traded real estate investment firm that acquires and manages a portfolio of retail assets located across multiple French regions. SCOR SE maintains a controlling interest in the company, holding 59.9% of its share capital. MRM's shares are listed on Euronext Paris, trading within Compartment C under identifiers such as ISIN FR0000060196. The company formally adopted the SIIC tax status on January 1, 2008.