Last year, Elon Musk parted ways with one of his top deputies at Tesla Inc., a French auto-industry executive named Jerome Guillen.
Mr. Guillen worked at Tesla for roughly a decade, rising to oversee the company’s car division. He was rewarded with equity grants that swelled with Tesla’s valuation. By the end of 2020, Mr. Guillen’s unvested equity in the car maker was valued at around $600 million, according to an Equilar Inc. analysis.
