Monitor for upcoming earnings or clinical trial updates — this level of coordinated selling by top executives may indicate lack of confidence in near-term catalysts. Watch for follow-on selling or downward revisions.
Price Chart
Executive Summary
Adaptive Biotechnologies CEO Chad Robins sold $1.85M in stock, while President Julie Rubinstein exercised options and sold $743K of shares in the past week. The transactions include both open-market sales and derivative exercises, with total open-market proceeds of $2.6M.
Key Financial Metrics
Key Facts
- CEO Chad Robins sold 140,567 shares at $13.17 for $1.85 million in proceeds
- President Julie Rubinstein sold 50,401 shares across two days for $743,290 in proceeds
- Julie Rubinstein exercised 58,888 derivative shares (4 grants of 14,722 each), with $192,858 in option costs
- All transactions occurred within a 3-day window, indicating coordinated activity
- Total open-market sales by insiders: $2.6M over 7 days, representing 0.14% of $1.9B market cap
Financial Impact
$2.6 million in insider sales over 7 days, with CEO accounting for 71% of total proceeds
Risk Factors
- Insider selling can signal overvaluation or anticipation of negative news
- Derivative exercises followed by sales suggest monetization of long-held equity, possibly for tax or diversification reasons — but timing raises questions
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CONTEXT: Insider Cluster Data (7 trades, 7d window) | cluster-ADPT-1773449152179 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 6, 2026 20d ago | 144 | $26.28 | awaiting T+20 | — | $26.27 (−0.04%) |
Oct 5, 2026 20d ago | Insider Cluster | $26.90 | awaiting T+20 | — | $26.27 (−2.34%) |
Sep 25, 2026 4w ago | Press Release | $29.43 $25.51 | ▼ −13.32% | ▼ −11.84% | $26.27 (−10.74%) |
Sep 18, 2026 5w ago | Insider Cluster | $27.86 $23.95 | ▲ +14.03% | ▲ +13.13% | $26.27 (+5.71%) |
Aug 20, 2026 9w ago | Insider Cluster | $25.99 $27.86 | ▲ +7.20% | ▲ +7.72% | $26.27 (+1.08%) |
Aug 19, 2026 9w ago | Insider Cluster | $25.44 $28.55 | ▼ −12.22% | ▼ −12.22% | $26.27 (−3.26%) |
Aug 18, 2026 9w ago | 144 | $25.49 $26.68 | ▲ +4.67% | ▲ +6.19% | $26.27 (+3.06%) |
Aug 17, 2026 10w ago | 144 | $24.56 $27.67 | ▼ −12.66% | ▼ −13.97% | $26.27 (−6.96%) |
Jul 29, 2026 12w ago | Institutional Cluster | $24.18 $26.44 | ▼ −9.35% | ▼ −5.38% | $26.27 (−8.64%) |
Jul 23, 2026 13w ago | Insider Cluster | $22.27 $25.99 | ▲ +16.70% | ▲ +13.08% | $26.27 (+17.96%) |
US Market Status
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