Alex Karp, CEO of Palantir Technologies, speaks on a panel titled Power, Purpose, and the New American Century at the Hill and Valley Forum at the U.S. Capitol on April 30, 2025 in Washington, DC. Kevin Dietsch | Getty ImagesPalantir has hit another major milestone in its meteoric stock rise. It's now one of the 20 most valuable U.S. companies.The provider of software and data analytics technology to defense agencies saw its stock rise more than 2% on Friday to another record, lifting the compan...