The concentrated selling by top executives, especially the CEO and COO, raises concerns about confidence in near-term performance. Traders should monitor upcoming earnings, pipeline updates, or potential dilution. The 0.06% of market cap sold is modest but highly concentrated among leadership, increasing its signaling weight.
Price Chart
Executive Summary
Adaptive Biotechnologies (ADPT) saw significant insider selling over a 7-day window, led by CEO Chad Robins and COO Julie Rubinstein, with total open-market dispositions amounting to $1.33 million. The sales follow a series of derivative exercises, some of which triggered corresponding open-market sales, suggesting potential tax or diversification motivations.
Key Financial Metrics
Key Facts
- CEO Chad Robins sold 37.3K shares for $566K at $15.19, the highest price in the cluster window.
- COO Julie Rubinstein conducted multiple derivative exercises and sold 92,522 shares across four days for a total of $1.07M.
- Total open-market sales by insiders amount to $1.33M over 7 days, representing 0.06% of the $2.2B market cap.
- All four insiders involved are C-suite executives, amplifying the signal of the selling activity.
- Derivative exercises (M-coded) on in-the-money options were followed by immediate open-market sales (S-coded), consistent with cashless exercise and sell-to-cover patterns.
Financial Impact
$1.33 million in open-market sales by insiders
Risk Factors
- Perception of insider pessimism despite possible routine tax/estate planning motivations.
- Potential for negative market reaction given the visibility of C-suite selling.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-ADPT-1776382609249 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 6, 2026 20d ago | 144 | $26.28 | awaiting T+20 | — | $25.51 (−2.93%) |
Oct 5, 2026 21d ago | Insider Cluster | $26.90 | awaiting T+20 | — | $25.51 (−5.17%) |
Sep 25, 2026 4w ago | Press Release | $29.43 $25.51 | ▼ −13.32% | ▼ −11.84% | $25.51 (−13.32%) |
Sep 18, 2026 5w ago | Insider Cluster | $27.86 $23.95 | ▲ +14.03% | ▲ +13.13% | $25.51 (+8.44%) |
Aug 20, 2026 9w ago | Insider Cluster | $25.99 $27.86 | ▲ +7.20% | ▲ +7.72% | $25.51 (−1.85%) |
Aug 19, 2026 9w ago | Insider Cluster | $25.44 $28.55 | ▼ −12.22% | ▼ −12.22% | $25.51 (−0.28%) |
Aug 18, 2026 9w ago | 144 | $25.49 $26.68 | ▲ +4.67% | ▲ +6.19% | $25.51 (+0.08%) |
Aug 17, 2026 10w ago | 144 | $24.56 $27.67 | ▼ −12.66% | ▼ −13.97% | $25.51 (−3.87%) |
Jul 29, 2026 12w ago | Institutional Cluster | $24.18 $26.44 | ▼ −9.35% | ▼ −5.38% | $25.51 (−5.50%) |
Jul 23, 2026 13w ago | Insider Cluster | $22.27 $25.99 | ▲ +16.70% | ▲ +13.08% | $25.51 (+14.55%) |
US Market Status
Subscribe to SecBot
Get Real-Time SEC Filing Intelligence
Comprehensive SEC filing analysis delivered the moment filings hit EDGAR. Sentiment scoring, impact analysis, and actionable insights for every material event.
Create a free account Live analysis, Telegram alerts, watchlists and the MCP server for subscribers