UNITED
STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON,
DC 20549
FORM
6-K
REPORT
OF FOREIGN PRIVATE ISSUER
PURSUANT
TO RULE 13a-16 OR 15d-16 UNDER
THE
SECURITIES EXCHANGE ACT OF 1934
For
the month of July 2025
Commission
File Number: 001-32371
SINOVAC
BIOTECH LTD.
No.
39 Shangdi Xi Rd, Haidian District
Beijing
100085, People’s Republic of China
(Address
of principal executive offices)
Indicate
by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:
Form
20-F ☒ Form 40-F ☐
SIGNATURE
Pursuant
to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by
the undersigned, thereunto duly authorized.
|
SINOVAC
BIOTECH LTD. |
|
|
|
|
By: |
/s/
Andrew Y. Yan |
|
Name: |
Andrew
Y. Yan |
|
Title: |
Chairman
of the Board |
Date:
July 10, 2025
Exhibit
Index
Exhibit
99.1 |
Press Release |
2