Form
SCHEDULE 13D/A
Active or control-oriented beneficial ownership filing.
SAIF Partners IV L.P. - 15 Dec 2025 SCHEDULE 13D/A Report for SINOVAC BIOTECH LTD. Common Shares, par value US$0.001 per share (SVA)
- Filing manager
- SAIF Partners IV L.P.
- Reporting owner
- SAIF Partners IV L.P.
- Beneficially owned shares
- 10,780,820 shares
- Large-stake signal
-
Ownership
15%Beneficial ownership of this reported class.
Shares
10,780,820 sharesShares beneficially owned as disclosed.
Event date
15 Dec 2025Date tied to the ownership event or amendment.
Accepted by SEC
30 Jan 2026EDGAR acceptance date.
How to read this large-stake filing
- Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
- Compare this filing with the holder history and issuer page before treating the percentage as a current position.
- Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
- Class ownership
- 15%
- Symbol
- SVA
- Shares outstanding
- 71,872,133 shares
- SEC form
- SCHEDULE 13D/A
- Accepted by SEC
- 30 Jan 2026, 15:23:41 UTC
- Event date
- 15 Dec 2025
- Prior SEC filing
- 14 Jul 2025
- Source filing
- View source filing
Ownership signal
CIK-linked ownership evidence from parsed SEC filings.
2 signals
Subject security
Names, identifiers, and filing context for this profile.
2 source fields
Source evidence
Original filing metadata and source links for verification.
5 source fields
Key filing fact
SAIF Partners IV L.P. disclosed 15% ownership in SINOVAC BIOTECH LTD. Common Shares, par value US$0.001 per share (SVA) on 15 Dec 2025.
Key facts
- SAIF Partners IV L.P. filed SCHEDULE 13D/A for SINOVAC BIOTECH LTD. Common Shares, par value US$0.001 per share (SVA).
- Disclosed ownership: 15%.
- Date of event: 15 Dec 2025.
Change
- Previous schedule filing date: 14 Jul 2025.
- Current filing was accepted on 30 Jan 2026, 15:23.
Research use
- This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
- Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.
Evidence
Backed by Schedule 13D/13G
View source filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting persons
Disclosed reporting parties (3)
Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.
| Name | Ownership | Shares owned | Sole voting power | Shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| SAIF Partners IV L.P. | 15% | 10,780,820 | 10,780,820 | 0 | /s/Andrew Y Yan | Director of SAIF IV GP Capital Ltd., which is the General Partner of SAIF IV GP, L.P., which is the General Partner of SAIF Partners IV L.P. | 0001472789 |
| SAIF IV GP, L.P. | 15% | 10,780,820 | 10,780,820 | 0 | /s/Andrew Y Yan | Director of SAIF IV GP Capital Ltd., which is the General Partner of SAIF IV GP, L.P. | |
| SAIF IV GP Capital Ltd. | 15% | 10,780,820 | 10,780,820 | 0 | /s/Andrew Y Yan | Director of SAIF IV GP Capital Ltd. |
CIK / CUSIP context first