Palantir Technologies insiders sold more than $436 million in PLTR shares since the start of 2026. Senior personnel completed 12 transactions during this period, averaging $5.82 million in sales per day.
Co-founder Peter Thiel executed the largest single sale on March 2. Thiel sold 2 million shares for $289.7 million, representing the majority of the year's total insider activity.
This selling trend contrasts with Palantir’s recent AI partnerships and strong commercial growth forecasts. No specific market reaction to the cumulative selling data was noted on March 17, 2026.