Zai Lab
- Market cap
- 2.84B
- P/E (TTM)i
- -14.89
- P/Bi
- 4.68
- EPSi
- -1.60
- Div yieldi
- 0.00%
- 52W posi
- 59%
Anonymous reader poll. Unscientific, not investment advice.
✦ Quant Ownership Signal how this is computed
- The number of reporting institutions decreased by 2 in the most recent period (2026/Q3).
- Total institutional ownership rose 0.9 percentage points.
Institutional ownership
- Held by institutions
- 78.50% +0.89pp
- Institutions
- 192 -2
- As of
- 2026/Q3 vs. prior period
Ownership vs. money flow
AlignedInstitutions added shares last reporting period, and the stock has seen net inflows in main-fund flow over the last 20 trading sessions - the two line up.
Institutional ownership changes are reported quarterly with a lag; fund-flow data is daily. Treat this as a directional cross-check, not a precise timing signal.
Holder types
Top holders as of 2026-06-30
Bar length is relative to the largest holder shown here, not to 100% of the company.
Insiders
50 filings tracked · 20 buys · 30 sells
| Name | Role | Stake |
|---|---|---|
| Ying Du | Founder, Chairperson & CEO | 1.09% |
| Peter Karl Wirth | Independent Director | 0.37% |
| John David Diekman | Lead Independent Director | 0.11% |
| Joshua L. Smiley | President | 0.10% |
| Wing Yu Leung | Independent Director | 0.09% |
| Leon Moulder | Independent Director | 0.08% |
| Richard Brian Gaynor | Independent Director | 0.07% |
| Michel Vounatsos | Independent Director | 0.06% |
| Rafael G. Amado | President and Head of Global Oncology Research & Development | 0.05% |
| Scott William Morrison | Independent Director | 0.05% |
Insider transactions most recent Form 4 filings
| Date | Name | Role | Type | Shares | Price |
|---|---|---|---|---|---|
| 2026-09-30 | Yajing Chen | Chief Financial Officer | Derivative Exercise and Sale | -315 | $25.50 |
| 2026-09-30 | Yajing Chen | Chief Financial Officer | Derivative Exercise and Retained | +605 | -- |
| 2026-08-19 | Joshua L. Smiley | President | Intent to Sell (Form 144) | -98,653 | $26.18 |
| 2026-08-18 | Yajing Chen | Chief Financial Officer | Automatic Disposition | -260 | $27.00 |
| 2026-08-13 | Yajing Chen | Chief Financial Officer | Derivative Exercise and Sale | -427 | $25.90 |
| 2026-08-13 | Yajing Chen | Chief Financial Officer | Derivative Exercise and Retained | +823 | -- |
| 2026-08-11 | William David Lis | Independent Director | Automatic Disposition | -8,506 | $25.00 |
| 2026-08-10 | Yajing Chen | Chief Financial Officer | Automatic Disposition | -619 | $25.00 |
| 2026-07-01 | Ying Du | Founder, Chairperson & CEO | Derivative Exercise and Sale | -11,431 | $19.12–19.15 |
| 2026-07-01 | Ying Du | Founder, Chairperson & CEO | Derivative Exercise and Retained | +17,617 | -- |
| 2026-07-01 | Ying Du | Founder, Chairperson & CEO | Other Derivative Acquisition | +80,393 | -- |
| 2026-06-30 | Richard Brian Gaynor | Independent Director | Automatic Acquisition | +1,736 | $19.05 |
| 2026-06-29 | Ying Du | Founder, Chairperson & CEO | Derivative Exercise and Sale | -7,026 | $18.53 |
| 2026-06-28 | Ying Du | Founder, Chairperson & CEO | Derivative Exercise and Retained | +10,944 | -- |
| 2026-06-25 | Ying Du | Founder, Chairperson & CEO | Derivative Exercise and Sale | -24,543 | $17.46 |
| 2026-06-25 | Ying Du | Founder, Chairperson & CEO | Intent to Sell (Form 144) | -24,543 | $17.46 |
| 2026-06-25 | Frazor Titus Edmondson | Chief Legal Officer | Derivative Exercise and Sale | -4,103 | $17.46 |
| 2026-06-25 | Frazor Titus Edmondson | Chief Legal Officer | Intent to Sell (Form 144) | -4,103 | $17.46 |
| 2026-06-25 | Yajing Chen | Chief Financial Officer | Derivative Exercise and Sale | -2,264 | $17.46 |
| 2026-06-25 | Yajing Chen | Chief Financial Officer | Intent to Sell (Form 144) | -2,264 | $17.46 |
Form 4 filings, most recent per company. "Other Derivative Acquisition" rows are mostly RSU/option vesting, not open-market buying - the Type column says which.
Quote time 2026-10-08 08:16:37 · For reference only, not investment advice and not tailored to your situation.