Quick Takeaways
- RTW INVESTMENTS, LP filed SCHEDULE 13G for Zai Lab Limited Ordinary Shares, par value $0.000006 per share (ZLAB).
- Disclosed ownership: 6.3%.
- Date of event: 31 Dec 2025.
RTW INVESTMENTS, LP - 31 Dec 2025 SCHEDULE 13G Report for Zai Lab Limited Ordinary Shares, par value $0.000006 per share (ZLAB)
- Filing Manager
- RTW INVESTMENTS, LP
- Reporting Manager
- RTW Investments, LP
- Symbol
- ZLAB
- Shares outstanding
- 1,104,608,254 shares
- Disclosed Ownership
- 69,590,320 shares
- Ownership
- 6.3%
- Form type
- SCHEDULE 13G
- Filing time
- 17 Feb 2026, 08:56:19 UTC
- Date of event
- 31 Dec 2025
- Previous filing
- 14 Nov 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"RTW INVESTMENTS, LP disclosed 6.3% ownership in Zai Lab Limited Ordinary Shares, par value $0.000006 per share (ZLAB) on 31 Dec 2025."
What Changed
- Previous schedule filing date: 14 Nov 2025.
- Current filing was accepted on 17 Feb 2026, 08:56.
Why This Matters
- This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
- You can verify ownership claims directly against the original SEC filing.
Source Evidence
Backed by Schedule 13D/13G
See Original Filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting Managers (2)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| RTW Investments, LP | 6.3% | 69,590,320 | 0 | 69,590,320 | /s/ Roderick Wong, M.D. | By Roderick Wong, M.D., Managing Partner | |
| Roderick Wong | 6.3% | 69,590,320 | 0 | 69,590,320 | /s/ Roderick Wong, M.D. | Roderick Wong, M.D. |