The filing is a routine intent-to-sell by a director; no immediate bearish signal. Monitor if larger insider sales or a cluster of filings emerge, but this standalone is not actionable.
Price Chart
Executive Summary
Director Michelle Griffin filed a Form 144 on June 25, 2026, indicating intent to sell 52,084 shares of Adaptive Biotechnologies (ADPT) valued at approximately $1,007,305. The shares were acquired via option exercise on the same day. This is a routine small-scale sale by a non-executive director, representing about 0.03% of market cap.
Key Facts
- Michelle Griffin (Director) filed Form 144 to sell 52,084 shares.
- Estimated market value: ~$1,007,305 based on ~$19.34 per share.
- Shares acquired via exercise of stock options on 06/25/2026.
- Sale represents ~0.032% of ADPT's $3.1B market cap.
- Recent insider activity: 5 sells totaling $2.8M over 30 days.
Financial Impact
Up to ~$1M in potential selling pressure, negligible relative to market cap.
Risk Factors
- Signals insider's desire to diversify, but limited given small size.
- Could precede additional insider selling if broader trend emerges.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 3 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 144 Filing (Primary) | 0001950047-26-006507 |
| Document: 0001950047-26-006507-index.html | 0001950047-26-006507 |
| Document: 0001950047-26-006507.txt | 0001950047-26-006507 |
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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