Zai Lab Limited (ZLAB) Insider Trading
Over the last 3 months, ZLAB insiders made 0 open-market buys and 19 sales, a net sale of -$4.7M (SEC Form 4). Over the last 6 months, 69 institutions increased and 88 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
19
Net (3m)
-$4.7M
Insider trades by month Buys Sells
Dec
Jan
Mar
Apr
May
Jun
Context3-month price +1%Institutions reducing (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Jun 29, 2026 | Edmondson Frazor Titus IIIofficer: Chief Legal Officer | Option | 14,600 | — |
| Jun 29, 2026 | Chen Yajingofficer: Chief Financial Officer | Option | 6,250 | — |
| Jun 29, 2026 | Du Yingdirector, officer: Chairperson & CEO | Option | 58,800 | — |
| Jun 29, 2026 | Du Yingdirector, officer: Chairperson & CEO | Sell | 24,543 | $17.46 |
| Jun 29, 2026 | Edmondson Frazor Titus IIIofficer: Chief Legal Officer | Sell | 4,103 | $17.46 |
| Jun 29, 2026 | Chen Yajingofficer: Chief Financial Officer | Sell | 2,264 | $17.46 |
| Jun 24, 2026 | Lis Williamdirector | Sell | 7,040 | $18.09 |
| Jun 22, 2026 | MOULDER LEON O JRdirector | Grant | 22,371 | — |
| Jun 22, 2026 | WIRTH PETERdirector | Grant | 22,371 | — |
| Jun 22, 2026 | Lis Williamdirector | Grant | 22,371 | — |
| Jun 22, 2026 | Morrison Scott Wdirector | Grant | 22,371 | — |
| Jun 22, 2026 | DIEKMAN JOHN Ddirector | Grant | 22,371 | — |
| Jun 22, 2026 | Vounatsos Micheldirector | Grant | 22,371 | — |
| Jun 22, 2026 | GAYNOR RICHARDdirector | Grant | 22,371 | — |
| Jun 22, 2026 | Leung Nisadirector | Grant | 22,371 | — |
| Jun 8, 2026 | Wang Yizheofficer: Operating Partner | Grant | 59,288 | — |
| Jun 8, 2026 | Wang Yizheofficer: Operating Partner | Grant | 136,819 | $20.32 |
| May 21, 2026 | Du Yingdirector, officer: Chairperson & CEO | Option | 261,092 | $1.74 |
| May 21, 2026 | Du Yingdirector, officer: Chairperson & CEO | Tax | 117,435 | $18.75 |
| May 19, 2026 | Du Yingdirector, officer: Chairperson & CEO | Option | 50,000 | $1.74 |
| May 19, 2026 | Du Yingdirector, officer: Chairperson & CEO | Sell | 50,000 | $20.74 |
| May 15, 2026 | Edmondson Frazor Titus IIIofficer: Chief Legal Officer | Sell | 3,517 | $20.19 |
| May 15, 2026 | Du Yingdirector, officer: Chairperson & CEO | Sell | 16,231 | $19.44 |
| May 15, 2026 | Du Yingdirector, officer: Chairperson & CEO | Sell | 50,000 | $20.09 |
| May 15, 2026 | Du Yingdirector, officer: Chairperson & CEO | Sell | 33,769 | $20.22 |
| May 15, 2026 | Du Yingdirector, officer: Chairperson & CEO | Option | 50,000 | $1.74 |
| Apr 8, 2026 | Du Yingdirector, officer: Chairperson & CEO | Sell | 2,653 | $20.45 |
| Apr 8, 2026 | Amado Rafaelofficer: See Remarks | Sell | 2,739 | $20.45 |
| Apr 8, 2026 | Edmondson Frazor Titus IIIofficer: Chief Legal Officer | Sell | 1,224 | $20.45 |
| Apr 8, 2026 | Chen Yajingofficer: Chief Financial Officer | Sell | 853 | $20.45 |
Source: ZLAB SEC Form 4 filings, latest Jun 29, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their ZLAB positions over the last 6 months (SEC Form 13F).
Increased
69
New positions
40
Reduced
88
Sold out
88
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| RTW INVESTMENTS, LP | Increased | 7.0M | Feb 17, 2026 |
| RTW INVESTMENTS, LP | Reduced | 6.6M | May 15, 2026 |
| RA CAPITAL MANAGEMENT, L.P. | New Position | 5.7M | May 15, 2026 |
| FRAZIER LIFE SCIENCES MANAGEMENT, L.P. | Unchanged | 1.9M | May 15, 2026 |
| FRAZIER LIFE SCIENCES MANAGEMENT, L.P. | Increased | 1.9M | Feb 13, 2026 |
| CLEARBRIDGE INVESTMENTS, LLC | Reduced | 1.8M | Feb 11, 2026 |
| UBS GROUP AG | Increased | 1.8M | Jan 29, 2026 |
| CITADEL ADVISORS LLC | Reduced | 1.7M | May 15, 2026 |
| CITADEL ADVISORS LLC | Increased | 1.7M | Feb 17, 2026 |
| BAMCO INC /NY/ | Increased | 1.7M | May 15, 2026 |
| FMR LLC | Reduced | 1.4M | Feb 17, 2026 |
| ADAR1 CAPITAL MANAGEMENT, LLC | Reduced | 1.4M | May 18, 2026 |
| BAMCO INC /NY/ | Increased | 1.4M | Feb 17, 2026 |
| FMR LLC | Reduced | 1.3M | May 15, 2026 |
| ADAR1 CAPITAL MANAGEMENT, LLC | Increased | 1.2M | Feb 18, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.