Palantir CEO Alexander Karp sold 492,348 shares of Class A common stock on August 20, 2026. The total transaction value reached approximately $86.06 million. Individual share prices during the sale ranged from $172.19 to $176.37. The company disclosed the transactions in a filing on August 24, 2026.

Karp sold 402,348 shares specifically to cover tax withholding obligations from vesting restricted stock units. The remaining 90,000 shares were liquidated under a Rule 10b5-1 trading plan established in March 2026. This transaction represents the largest insider sale for Palantir in 2026.

Institutional investor Dearborn Partners LLC also reported new activity regarding the company. The firm acquired a $490,000 stake in Palantir during the second quarter.