Palantir’s stock surge—over 600% in one year, before this week’s slide—has made its CEO Alex Karp a wealthy man. Karp sold nearly $2 billion worth of company shares last year, with the bulk of sales taking place in a single month around the presidential election.

Palantir Technologies (NASDAQ:PLTR) shares had a brutal day, sinking 10% during regular trading and tumbling another 5% after hours. Investors