Sebastian Siemiatkowski NewsLatest News On Sebastian Siemiatkowski Klarna CEO says a European tech brain drain is ‘number one risk’ for company ahead of IPO10/3/2024 6:02 AM Klarna CEO: Today's results rebutt misconceptions about Klarna's business model8/31/2023 6:49 PM Klarna CEO Sebastian Siemiatkowski: stages of COVID-19 buying behavior - Business Insider10/21/2020 1:45 PM