25 Of The Youngest Female Billionaires: Find Out How These Incredible Women Made Their Fortunes
Dona Bertarelli – $4.7 billion – Serono Family
Dona’s family founded the biotechnology company Serono. Over the years the company grew and grew, with Dona and her brother becoming the heirs to a billion-dollar firm. She worked at the company before they eventually sold it. Gaining experience in wealth management, Bertarelli started her own charity, The Bertarelli Foundation. But she also has athletic talents. Her sailing skills made her famous and even got her the world record: in 2016 she sailed around the planet in the shortest time a female ever has!