Harlan S. Robins, Chief Scientific Officer at Adaptive Biotechnologies Corp (ADPT), sold 41,550 shares at $41.79 ($1.7M) on 2021-04-21, disclosed to the SEC on 2021-04-22.
Open-market sale of $1.7M ADPT by Chief Scientific Officer. Not flagged as scheduled, tax-driven, or recurring — but no specific bearish signal from our filters. Reasons for insider sales vary widely.
Nothing distinguishes this filing.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $40.24 | 8,685 | $349K | 20.3% |
| 2 | $40.24 | 8,685 | $349K | 20.3% |
| 3 | $41.35 | 3,000 | $124K | 7.2% |
| 4 | $39.85 | 500 | $20K | 1.2% |
| 5 | $41.17 | 2,090 | $86K | 5.0% |
| 6 | $41.17 | 2,090 |
| $86K |
| 5.0% |
| 7 | $41.79 | 5,200 | $217K | 12.6% |
| 8 | $42.85 | 4,280 | $183K | 10.7% |
| 9 | $43.59 | 3,510 | $153K | 8.9% |
| 10 | $43.59 | 3,510 | $153K | 8.9% |
| Total | $41.44 avg | 41,550 | $1.7M | 100% |
| Filing → |
| ADPT | SELL | 2026-06-17 | $1.8M | — | Filing → |
| ADPT | SELL | 2026-04-10 | $149K | — | Filing → |
| ADPT | SELL | 2026-03-13 | $6.2M | — | Filing → |