Trade Summary

5 days ago, ROBINS HARLAN S, serving as Chief Scientific Officer at Adaptive Biotechnologies Corp (ADPT), sold 492,400 shares at $21.89 per share, for a total transaction value of $10,780,408.80. Following this transaction, ROBINS HARLAN S now holds 812,058 shares of ADPT.

This sale represents a 37.75% decrease in ROBINS HARLAN S's stake in the company. This is considered a high-conviction trade given the significant change in ownership.

The trade was executed on Tuesday, July 21, 2026 and publicly disclosed via SEC Form 4 filing on Thursday, July 23, 2026 at 7:34 PM ET, 2 days after the trade was made.

Adaptive Biotechnologies Corp operates in the HEALTHCARE sector, specifically within the BIOTECHNOLOGY industry. Insider selling activity in this sector can provide valuable signals about industry trends and company-specific developments.