95. THERESA PAN

$250 million SOURCE: Fiber optics AGE: 75 • RESIDENCE: Milpitas, CA SELF-MADE SCORE: 8  Pan and her then-husband, Jing Jong Pan, became billionaires when her fiber-optic components firm, E-Tek Dynamic—which she cofounded in 1983—was acquired by fiber-optics company JDS Uniphase in a $15 billion transaction in 2000. They dropped out of the three-comma club by 2001 as JDS shares declined. Pan heads a foundation that builds and renovates rural schools in China.