Amazon.com (AMZN.O), opens new tab is starting to see an uptick in product prices on its e-commerce platform as sellers respond to cost pressures stemming from U.S. President Donald Trump's tariffs, the tech giant's CEO, Andy Jassy, told CNBC on Tuesday.

The company had pulled forward its inventory shipments early last year and urged third-party sellers to bring in more stock ahead of time to circumvent tariff-driven surges in shipping costs, but "that supply has run out in the fall," Jassy said in the interview at the World Economic Forum in Davos, Switzerland.