Palantir topped Wall Street's fourth-quarter estimates as more businesses and the U.S. government race to buy its artificial intelligence tools. Shares rose 5% after the bell. Here's how the company did versus LSEG estimates: Revenue grew 70% from $827.5 million in the year-ago period. For the fiscal year, sales at the Denver-based firm totaled $4.48 billion U.S. revenue for the government and commercial sectors rose to $570 million and $507 million, respectively. Those results steadily beat