Delfin Sarl, the family investment company behind EssilorLuxottica SA, is valued at more than €40 billion and holds a nearly one-third stake in the world’s largest eyewear company. (EPA Images pic)Milan: Ray-Ban heir Rocco Basilico rebuffed a €3.5 billion (US$3.9 billion) offer for his 12.5% stake in Delfin Sarl, the family investment company behind EssilorLuxottica SA, people familiar with the matter said.

The bid was tabled by Rocco’s stepbrother, Leonardo Maria del Vecchio, the people said, asking not to be named because they aren’t authorized to speak publicly. Delfin’s public holdings have a market value of over €40 billion, including nearly one-third of the world’s biggest eyewear company.