Amazon.com Inc. CEO Jeff Bezos sold approximately $990.1 million worth of shares in the e-commerce behemoth between Aug. 1 and Aug. 2, according to ownership filings filed Aug. 5.

Bezos, who founded Amazon, sold a total of 532,120 shares during the two-day period after selling another $1.84 billion worth of shares the same week.

The executive now holds 57,610,359 Amazon shares, according to the filings.

In April 2017, Bezos indicated his plans to sell about $1 billion of Amazon stock every year to fund his Blue Origin rocket company.

Shares of the online retailer fell as much as 4.08% to $1,748.78 following the disclosures, before closing down 3.19% to $1,765.13.