Monitor for the actual Form 4 filing to confirm the sale occurred. The modest size relative to market cap suggests limited immediate price impact, but the pattern of insider selling warrants caution. Watch for any upcoming earnings or material news that could explain the selling.
Price Chart
Executive Summary
Director Peter Neupert filed a Form 144 notice to sell up to 124,690 shares of Adaptive Biotechnologies, valued at approximately $3.14 million based on the filing date. The shares are from stock option exercises and restricted stock vesting, and the sale is planned through Morgan Stanley. While the dollar amount is modest relative to the company's $3.9B market cap, the filing adds to a pattern of insider selling ($10.9M over the past 30 days), which may raise mild concern about insider sentiment ahead of the next earnings report.
Key Facts
- Director Peter Neupert filed a Form 144 to sell up to 124,690 shares.
- Estimated sale value is approximately $3.14 million.
- Shares come from stock option exercises and restricted stock vesting.
- The sale is planned through Morgan Stanley Smith Barney.
- Recent insider selling totals $10.9M over the past 30 days.
Financial Impact
Up to $3.14 million in planned insider sales by a director.
Risk Factors
- Insider selling may signal lack of confidence in near-term prospects.
- Additional insider sales could pressure the stock.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 6 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 144 Filing (ADPT) — Batch item 1 | 0001950047-26-008277 |
| Document: 0001950047-26-008277-index.html | 0001950047-26-008277 |
| Document: 0001950047-26-008277.txt | 0001950047-26-008277 |
| 144 Filing (ADPT) — Batch item 4 | 0001950047-26-008277 |
| Document: 0001950047-26-008277-index.html | 0001950047-26-008277 |
| Document: 0001950047-26-008277.txt | 0001950047-26-008277 |
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