The business mogul is the second richest man in New York and is worth over billion.
Koch is currently ranked fifth on the Forbes 400 List.
on Friday (February 9) at New York Stock Exchange in New York City.
PHOTOS: Check out the latest pics of Julianne Moore The mother-daughter duo were also joined at the event by Priyanka Chopra, Poppy Delevingne, Dylan Penn, Salma Hayek and her husband Francois-Henri Pinault.
Lucy Southworth is married to Larry Page, co-founder of Google.
But she’s not letting that $30 billion fortune go to her head; she continues to push herself, and is studying for a doctorate in biomedical informatics at Stanford University!
They’ve had their problems, but actress Talulah Riley and her billionaire husband Elon Musk (co-founder of Paypal, Tesla and Space X) have sorted out their issues by getting divorced, and returning to each others arms for round 2 of marriage life – Elon Musk alone is worth around $12 Billion.
Priscilla Chan – or Mrs Mark Zuckerberg if you prefer – married into the Facebook family in 2012.
Irina has a lot more to boast about than just her business tycoon husband, Alister Usmanov and his billion net worth.
Viner is the head coach of the Russian National Rhythmic Gymnastics team and is considered to be one of the most successful gymnastics coaches ever.
Gali Icahn met Carl Icahn when she was working as his assistant.