Moderna’s efforts to develop, manufacture and market its massively successful COVID-19 vaccine have made CEO Stéphane Bancel a billionaire. Eventually, the helmsman plans to give away most of his fortune, he told Bloomberg.

During an interview with Bloomberg on the sidelines of the World Economic Forum meeting, Bancel said he’s told his children they will get a good education and the family home, “but the rest we’re going to give away.” As a major shareholder in Moderna, he’s worth about $4.1 billion, according to Bloomberg.

Other prominent billionaires such as Bill Gates and MacKenzie Scott have made similar pledges to donate much of their wealth, Business Insider notes.

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