ZLAB Insider Trading Activity and SEC Form 4 Filings
ZLAB insider trading summary
Over the past 12 months, insiders at Zai Lab Ltd (ZLAB) reported 39 sales worth $11.1M by 6 insiders and 2 open-market purchases worth $66K by 1 insider on SEC Form 4. Net insider selling was $11.0M.
Latest ZLAB insider buys and sells
| Date | Insider | Role | Type | Value |
|---|---|---|---|---|
| Aug 19, 2026 | Yajing Chen | Chief Financial Officer | Sell | $7K (260 @ $27.00) |
| Aug 12, 2026 | William Lis | Insider | Sell | $213K (8,506 @ $25.00) |
| Aug 11, 2026 | Yajing Chen | Chief Financial Officer | Sell | $15K (619 @ $25.00) |
| Jul 1, 2026 | Richard Gaynor | Insider | Buy | $33K (1,736 @ $19.05) |
| Jun 30, 2026 | Ying Du | Chairperson & CEO | Sell | $130K (7,026 @ $18.53) |
| Jun 26, 2026 | Ying Du | Chairperson & CEO | Sell | $429K (24,543 @ $17.46) |
| Jun 26, 2026 | Frazor Titus Edmondson III | Chief Legal Officer | Sell | $72K (4,103 @ $17.46) |
| Jun 26, 2026 | Yajing Chen | Chief Financial Officer | Sell | $40K (2,264 @ $17.46) |
| Jun 22, 2026 | William Lis | Insider | Sell | $127K (7,040 @ $18.09) |
| May 18, 2026 | Ying Du | Chairperson & CEO | Sell | $950K (50,000 @ $19.00) |
Source: SEC Form 4 filings. Open-market purchases (code P) and sales (code S) only; option exercises, grants and gifts are excluded.