Palantir (NYSE: PLTR) stock has defied conventional market trends, soaring past historical highs despite significant insider selling.
Specifically, over the past 12 months, Palantir insiders have sold approximately $2.54 billion worth of stock, with 12 individuals participating in these transactions.
In contrast, insider buying has been virtually absent, with only one insider purchasing shares totaling $1.16 million during the same period, according to data retrieved by Finbold from MarketBeat on July 27.
Typically, a sharp imbalance between insider selling and buying is viewed as a bearish signal, often interpreted as a sign of waning confidence in a company’s future.
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This signal is triggered upon the reporting of the trade to the Securities and Exchange Commission (SEC).
However, PLTR shares have defied this logic, rallying to all-time highs. The stock has surged a staggering 486% over the past year, ending the latest session at $158.80.

Among the latest insider transactions, Ryan Taylor sold $9.2 million worth of stock on July 15, following a $9.95 million sale on May 7. Director Lauren Della Friedman Staal offloaded $11.18 million on July 9, while insider Erich Woehrleing sold nearly $9 million on both July 8 and June 18. Executive Shyam Sankar parted with $35.48 million in shares on June 10, and David Glazer sold $47.8 million on May 2.
PLTR stock momentum builds up
Despite this wave of insider sales, Palantir stock continues to climb. The recent momentum has propelled the software giant into the ranks of the 20 most valuable U.S. companies, after reaching a market capitalization of $375 billion.
Investors remain bullish on the company’s growing dominance in artificial intelligence and its deepening ties with U.S. defense and intelligence agencies.
Momentum has been further boosted by strong earnings, with U.S. government revenue surging 45% year-over-year to $373 million, and total revenue jumping 39% to $884 million in the most recent quarter.
With shares showing no signs of slowing down, Palantir appears to be building momentum toward the next psychological milestone of $200. The company is slated to report its next earnings on August 4, a potential catalyst for the next leg of its historic rally.
At the same time, beyond concerns about insider selling, Palantir’s share price has also shrugged off valuation warnings. Most analysts caution that the stock is overvalued and could crash if it fails to meet future growth expectations.
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