The CEO's massive option exercise and sale is the dominant signal — he monetized nearly 600K options at a ~$18.50/share profit. While some of this is routine post-vesting liquidity, the concentration and size (0.38% of market cap from CEO alone) is unusual. Watch for any upcoming earnings miss, clinical data readout, or guidance revision that could explain the urgency. The stock's recent strong performance (+26% over 20 days per historical reports) may have created a selling window.
Price Chart
Executive Summary
CEO Chad Robins and Director Peter Neupert executed large-scale option exercises and open-market sales totaling ~$18M over two days. The CEO alone sold ~$14.9M worth of shares at ~$25, while also exercising options at $6.55 strike. Director Neupert sold ~$3.1M. The sales follow a strong stock run and are likely liquidity-driven after option exercises, but the sheer size (~0.46% of market cap) is notable and warrants monitoring for any upcoming negative catalyst.
Key Financial Metrics
Key Facts
- CEO Chad Robins sold 597,271 shares on the open market for ~$14.9M on Aug 17-18
- Director Peter Neupert sold 124,690 shares for ~$3.1M on Aug 17
- Total insider sales of ~$18M represent ~0.46% of ADPT's $3.9B market cap
- CEO exercised 599,000 options at $6.55 strike, netting ~$11.7M profit after selling
- Director Neupert exercised 30,000 options at $6.32 strike, netting ~$570K profit
- CCO Susan Bobulsky sold 3,000 shares for $75K on Aug 10
Financial Impact
~$18M in insider sales over 2 days, ~0.46% of market cap
Risk Factors
- CEO sold ~$14.9M in a concentrated 2-day window, which could signal lack of confidence in near-term prospects
- Director Neupert also sold heavily, adding to the bearish signal
- Sales occurred after a significant stock run-up, potentially locking in gains ahead of negative news
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-1787185218835 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 6, 2026 21d ago | 144 | $26.28 | awaiting T+20 | — | $26.27 (−0.04%) |
Oct 5, 2026 22d 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 10w 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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