Shares of military-grade AI tools and services provider Palantir PLTR.O drop 2.6% to $141.35 premarket.
Tech billionaire Peter Thiel, one of PLTR's co-founders, to sell 2 mln PLTR shares worth $280 mln, per filing late on Monday.
Thiel among top five biggest holders of PLTR stock, according to data compiled by LSEG.
PLTR set to snap a four-day winning streak, if losses hold.
Global equities under pressure on Tuesday amid elevated geopolitical worries as investors assessed the fallout of U.S. and Israeli strikes on Iran.
As of last close, PLTR shares down more than 18% YTD after rallying more than 135% in 2025.