Harlan S. Robins, Chief Scientific Officer at Adaptive Biotechnologies Corp (ADPT), sold 21,770 shares at $35.91 ($813K) on 2021-06-09, disclosed to the SEC on 2021-06-11.
Open-market sale of $813k 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 | $35.91 | 3,395 | $122K | 15.0% |
| 2 | $35.91 | 3,395 | $122K | 15.0% |
| 3 | $36.50 | 500 | $18K | 2.2% |
| 4 | $36.77 | 1,100 | $40K | 5.0% |
| 5 | $37.87 | 2,795 | $106K | 13.0% |
| 6 | $37.87 | 2,795 |
| $106K |
| 13.0% |
| 7 | $38.41 | 3,895 | $150K | 18.4% |
| 8 | $38.41 | 3,895 | $150K | 18.4% |
| Total | $37.36 avg | 21,770 | $813K | 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 → |