He is the son of the late
Samuel Curtis Johnson Jr. (1928–2004) and Imogene Powers Johnson, and the great-great-grandson of company founder
Samuel Curtis Johnson. His three siblings and mother each had a net worth of $3 billion as of May 2015. He received five degrees from
Cornell University and Cornell's
Samuel Curtis Johnson Graduate School of Management, a BA in chemistry and physics in 1979, a Master of Engineering in 1980, an MS in applied physics in 1982, an MBA in marketing and finance in 1984, and a PhD in applied physics in 1986. ==Career==