New York (CNN Business) Jeff Bezos has sold more than $1.8 billion worth of stock, as the world's richest person continues to sell his Amazon stake to fund his space venture.

Even with the massive stock dump, Bezos remains the world's richest person, according to Bloomberg Billionaires Index . He's worth $117 billion.

Bezos has said he sells roughly $1 billion worth of stock a year to fund his space company, Blue Origin, and he pledged to sell more than $1 billion this year as Blue Origin gets closer to commercial operations.