The selling is modest and concentrated among two individuals, with no indication of coordinated exit. The CEO's activity was non-cash, so not indicative of profit-taking. Monitor for follow-up trades or commentary ahead of next earnings.
Price Chart
Executive Summary
A recent insider trading cluster at Zai Lab includes open-market sales by the Chief Legal Officer and a board member, alongside a non-cash derivative exercise by CEO Du Ying. The total open-market selling amounts to $470,545, representing a modest 0.02% of the company's $2.1B market cap.
Key Financial Metrics
Key Facts
- Chief Legal Officer Edmondson Frazor Titus III sold $296,745 worth of shares in an open-market transaction.
- Board member Amado Rafael sold $173,800 in shares on the open market.
- CEO Du Ying exercised derivatives for 100,000 shares at $1.74 (total value $174,000), but these were non-cash transactions (code M), likely related to option expirations or vesting.
- Total open-market selling: $470,545 (0.02% of $2.1B market cap), which is below the 0.1% threshold for materiality.
Financial Impact
$470,545 in net open-market selling over 7 days
Risk Factors
- Perception risk from consecutive insider sales, even if small in magnitude.
- Lack of buying activity in the cluster โ no offsetting insider accumulation.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CONTEXT: Insider Cluster Data (4 trades, 7d window) | cluster-ZLAB-1772832404015 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Aug 21, 2026 6w ago | Insider Cluster | $26.01 $26.08 | โฒ +0.27% | โผ โ0.20% | $24.33 (โ6.46%) |
Aug 13, 2026 7w ago | Insider Cluster | $26.03 $26.02 | โผ โ0.04% | โฒ +1.93% | $24.33 (โ6.53%) |
Aug 13, 2026 7w ago | Insider Cluster | $26.03 $26.02 | โผ โ0.04% | โฒ +1.93% | $24.33 (โ6.53%) |
Aug 12, 2026 7w ago | 144 | $25.49 $26.72 | โฒ +4.83% | โฒ +5.27% | $24.33 (โ4.55%) |
Jul 1, 2026 13w ago | Insider Cluster | $19.15 $19.35 | โฒ +1.04% | โฒ +0.78% | $24.33 (+27.05%) |
Jun 29, 2026 13w ago | Insider Cluster | $19.00 $19.08 | โฒ +0.42% | โผ โ0.18% | $24.33 (+28.05%) |
Jun 11, 2026 16w ago | Institutional Cluster | $17.64 $17.88 | โผ โ1.36% | โผ โ0.93% | $24.33 (โ37.93%) |
May 21, 2026 19w ago | 8-K | $18.61 $17.09 | โผ โ8.17% | โผ โ9.83% | $24.33 (+30.74%) |
May 19, 2026 19w ago | Insider Cluster | $18.81 $18.69 | โผ โ0.64% | โผ โ1.88% | $24.33 (+29.35%) |
May 19, 2026 19w ago | Insider Cluster | $18.81 $18.69 | โฒ +0.64% | โฒ +1.88% | $24.33 (โ29.35%) |
US Market Status
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