ADPT SEC Form 4 filings
Adaptive Biotechnologies Corp Latest Insider Trading Activity
Over the past 19 days, Adaptive Biotechnologies Corp (ADPT) has had 8 total open-market insider transactions represented in the displayed records. The most recent transaction was on August 26, 2026, when Owen Katey Einterz (Adaptive Biotechnologies Corp Director) reported a sale of 9,615 shares at $26.00 per share. This page shows up to the 5 most recent SEC Form 4 filing records on a 24-hour delay. Sign up for real-time updates and access to 5 years of historic insider trading data.
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| Ticker | Filing Date | Transaction Date | Company | Insider | Title | Transaction | Trade Count | Shares | Avg. Price | Total Value | Position Size Change | SEC Filing |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ADPT | 2026-08-28 | 2026-08-26 | Adaptive Biotechnologies Corp | Owen Katey Einterz | Director | Sell | 1 | 9,615 | $26.00 | $249,990.00 | 10.89% | View Filing |
| ADPT | 2026-08-20 | 2026-08-18 | Adaptive Biotechnologies Corp | Hershberg Robert | Director | Sell | 1 | 15,664 | $24.41 | $382,358.24 | 25.12% | View Filing |
| ADPT | 2026-08-20 | 2026-08-18 | Adaptive Biotechnologies Corp | Hershberg Robert | Director | Sell | 1 | 15,000 | $24.39 | $365,850.00 | 19.39% | View Filing |
| ADPT | 2026-08-19 | 2026-08-18 | Adaptive Biotechnologies Corp | Robins Chad M | CEO and Chairman | Sell | 4 | 600,000 | $24.80 | $14,882,166.29 | 6.43% | View Filing |
| ADPT | 2026-08-19 | 2026-08-17 | Adaptive Biotechnologies Corp | Neupert Peter M | Director | Sell | 1 | 15,000 | $25.23 | $378,450.00 | 5.88% | View Filing |
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