Form 4: Adaptive Biotechnologies Director Sells Shares
Insider Transaction (Form 4)
Robert Hershberg, a Director of Adaptive Biotechnologies Corp, sold 30,664 shares of common stock on August 18, 2026.
Summary
- Option exercise/conversion: acquired 15,000 Common Stock at $6.32 ($94,800) on August 18, 2026; holds 77,347 after (Direct).
- Open-market sale: disposed of 15,000 Common Stock at $24.39 ($365,850) on August 18, 2026; holds 62,347 after (Direct).
- Open-market sale: disposed of 15,664 Common Stock at $24.41 ($382,358) on August 18, 2026; holds 46,683 after (Direct).
- Option exercise/conversion: disposed of 15,000 Stock Option (right to buy) on August 18, 2026 (Direct).
Sentiment
Score: 4
Explanation: StockSavvy.ai views this as a mildly negative signal: an insider sold $748,208 of stock on the open market.
Insider Transactions
Robert Hershberg — Director
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-08-18 | Option exercise/conversion | Common Stock | 15,000 | $6 | $94.8K | 77,347 |
| 2026-08-18 | Open-market sale | Common Stock | 15,000 | $24 | $365.9K | 62,347 |
| 2026-08-18 | Open-market sale | Common Stock | 15,664 | $24 | $382.4K | 46,683 |
| 2026-08-18 | Option exercise/conversion | Stock Option (right to buy) | 15,000 | — | — | 0 |
Key Dates
| Date | Description |
|---|---|
| 2026-08-18 | Option exercise/conversion (15,000 shares) |
| 2026-08-18 | Open-market sale (15,000 shares) |
| 2026-08-18 | Open-market sale (15,664 shares) |
| 2026-08-18 | Option exercise/conversion (15,000 shares) |
Keywords
insider transaction, Form 4, ADPT, Adaptive Biotechnologies Corp, bearish, Robert Hershberg
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