Even though Mr. Ballmer left Microsoft, the vast bulk of his wealth remains in company stock — $21.4 billion. He has $7.3 billion more in cash. It makes his stake in the Clippers seems paltry. He also has $450 million in Twitter shares. He owns a $14 million home in Hunts Point, Wash., and properties on Whidbey Island worth about $4 million.
Deputy chairwoman of Altana
Estimated net worth: $20 billion
Susanne Klatten, 54, the richest woman in Germany, can trace the source of her wealth to “the ultimate driving machine,” BMW. Her grandfather founded an industrial conglomerate that owned the German automotive company — and had a stake in its more staid rival, Daimler-Benz. The company also owned the chemical giant Altana. Her father, Herbert Quandt, took over the family businesses when his father died in 1954. When he died in 1982, Ms. Klatten received stakes in BMW and Altana, of which she is now the sole owner. As her father was credited with saving BMW from bankruptcy, she is credited with making Altana a top company in Germany. She is also chairwoman of the SGL Group, which produces graphite and carbon-fiber products.
Her wealth is tied up in her companies, with over half, or $12.1 billion, in the BMW Group. An additional 16 percent is in Altana, and 1 percent is in the SGL Group. She has 22.5 percent in cash. She has a family office that creates privacy around the breakdown of her wealth.
Chairman of Wipro
Estimated net worth: $10 billion
Azim Premji, 71, was born into the family that started Western India Vegetable Products, which produced hydrogenated oils. When Mr. Premji was at Stanford University, his…