A fourth executive has left Nike Inc. the Portland Business Journal reported on Thursday, as the company continues with a culture change aimed at creating a more diverse leadership. Greg Thompson, the company's vice president of footwear, left the company Thursday after decades at Nike, the paper reported. On Wednesday, The Wall Street Journal said that Vikrant Singh, a senior brand director for the basketball brand in North America, and Daniel Tawiah, vice president of global brand digital-marketing innovation, were being forced to leave the company. A third executive, Antoine Andrews, vice president of diversity and inclusion, was also leaving, the people said. Nike shares were not yet active premarket, but have gained 18% in the last 12 months, while the S&P 500 has gained 16%.