Zai Lab (ZLAB): RTW Investments, LP opened a new position $65.7M

2.51M

Shares reported

0.99%

Disclosed portfolio weight

$65.7M

Reported value

Holdings as of

Dec 31, 2024

Filed

Feb 14, 2025

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. Jul 1, 2024InsiderDirector sold ~$133K of ZLAB shares in the open market
2. Dec 31, 2024InsiderOfficer sold ~$199K of ZLAB shares in the open market

What came next

1. Feb 28, 2025Insider · 3 peopleInsiders: 5 sales (~$2.7M)
2. Mar 3, 2025Insider · 1 personInsiders: 3 sales (~$1.6M)
3. Mar 4, 2025Insider · 1 personInsiders: 3 sales (~$1.7M)
4. Mar 5, 2025Insider · 2 peopleInsiders: 3 sales (~$1.7M)
5. Mar 17, 2025InsiderOfficer sold ~$115K of ZLAB shares in the open market
6. Apr 2, 2025Insider · 5 peopleInsiders: 5 sales (~$1.2M)
7. Apr 4, 2025Insider · 5 peopleInsiders: 5 sales (~$401K)
8. May 9, 2025Insider · 2 peopleInsiders: 3 sales (~$2.2M)
9. May 12, 2025Insider · 1 personInsiders: 2 sales (~$1.5M)
10. May 13, 2025Insider · 1 personInsiders: 2 sales (~$1.4M)
11. May 14, 2025Insider · 1 personInsiders: 2 sales (~$1.3M)
12. Jun 2, 2025InsiderCFO sold ~$289K of ZLAB shares in the open market

How to read SEC Form 13F-HR

Form 13F is the quarterly report in which investment managers that oversee $100 million or more list the US-listed stocks and some other securities they held on the last day of the quarter.

Full guide: What is an SEC Form 13F?

What else is on file for Zai Lab

For Zai Lab, OQRO holds 1 insider filing (SEC Form 4 or Form 144) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its ZLAB page.

How this filing works

• SEC Form 13F

Other disclosures at Zai Lab

• SEC Form 4Nov 13, 2026
• SEC Form 13F-HRMay 15, 2026
• SEC Form 13F-HRMay 15, 2026
• SEC Form 13F-HRFeb 17, 2026
• SEC Form 13F-HRFeb 13, 2026
• SEC Form 13F-HRNov 14, 2025

Everything OQRO holds on this company is on its ZLAB page.