Pat Gelsinger stepped down after nearly four years at the helm of the onetime highflying company, Intel said Monday.

Intel Chief Executive Pat Gelsinger retired abruptly, ending a nearly four-year run that saw the chip maker fall behind rivals in building semiconductors to power the artificial-intelligence boom. The company on Monday said it named Chief Financial Officer David Zinsner and Michelle Johnston Holthaus,

Computer chip maker Intel announced the retirement of chief executive Pat Gelsinger on Monday, raising new questions about the company’s future even as the United States is set to give it billions of dollars to build up the country’s ability to manufacture chips at home.