The breadth and seniority of this selling cluster — particularly the CSO and two CCOs — is a strong bearish signal. Traders should monitor for upcoming earnings or clinical data readouts that may have prompted the exits. A lack of any insider buying reinforces the negative read.
Price Chart
Executive Summary
Five insiders at Adaptive Biotechnologies, including the Chief Scientific Officer and two Chief Commercial Officers, sold a total of ~$10.55M in shares over a one-week period ending July 2, 2026. The cluster is dominated by open-market sales from C-suite executives, with no corresponding insider purchases, signaling a bearish conviction from those closest to the business. At 0.31% of the $3.4B market cap, the dollar value is modest but the breadth and seniority of the selling are notable.
Key Financial Metrics
Key Facts
- Five insiders sold shares totaling ~$10.55M in a 7-day window (June 25 – July 2, 2026).
- Chief Scientific Officer Harlan S. Robins sold $8.5M (two trades: $3.3M at $22.45 and $5.2M at $21.74).
- Chief Commercial Officer (Imm Med) Sharon Benzeno sold $3.27M (154.8K shares at $21.14).
- Chief People Officer Francis Lo sold ~$2.16M across multiple trades, partially offset by option exercises.
- Director Michelle Renee Griffin sold $1.05M (52.1K shares at $20.18).
- No insider purchases were recorded during the window.
- Total sales represent approximately 0.31% of the company's $3.4B market cap.
Financial Impact
Insider sales of ~$10.55M, or 0.31% of market cap, concentrated among top executives.
Risk Factors
- Insider sales may be part of pre-arranged 10b5-1 plans, though the cluster timing and lack of buys suggest informational selling.
- Upcoming clinical or earnings catalysts could reverse sentiment if positive.
- High analyst bullishness (86% buy) creates potential for negative surprise if fundamentals disappoint.
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-1783465269346 |
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
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