Brex co-founders Pedro Franceschi and Henrique Dubugras.
Brex
Capital One said Thursday that it was acquiring startup Brex for $5.15 billion.
The credit card lender said it would pay for the company, known as a startup that lends to other startups, for 50% cash and 50% stock.
Shares of the bank fell about 4% after the news.
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