Palantir Technologies Inc. (NYSE:PLTR) shares are up this Thursday. Here’s what you need to know. What To Know: A Barron’s report noted that Palantir co-founder and chairman Peter Thiel has completed selling the maximum number of shares under a trading plan he initiated in May. Thiel sold 12.412 million shares at an average price of $36.85 per share from September 27 through October 1 via Rivendell 7 LLC, leaving the entity with approximately 34.26 million shares. This sale was completed ahead of the December 31, 2025 deadline. Palantir also announced a multi-year strategic partnership with Ed…