No 4 Cher Wang

Estimated net worth: $890 million

Country: China

Also known as Wang Hsiueh Hong, she is the largest shareholder and current chairwoman of Taiwan's HTC Corp. According to dailytech.com, Wang and her husband - fellow tech executive Chen Wen-chi - own roughly $950 million worth of HTC stock, that's roughly 1 in 4 or around 200 million shares.

HTC's co-founder and chairwoman Cher Wang speaks at HTC Presents Double Exposure at Skylight at Moynihan, on Wednesday, Oct 8, 2014 in New York. [Photo / IC]