Excelsior Times, a family office, agreed to acquire La Sirena, an operator of a frozen food retail chain, from OpCapita, a private equity firm. Financial terms were not disclosed. La Sirena is the leading frozen food specialist in Spain operating more than 260 stores. The company also distributes its branded products via its own on-line platform and through wholesale agreements with Amazon, Glovo and national retailers such as Carrefour and Eroski.