ISSUER PROFILE · CIK 0001084201 · CUSIP P8696W104

SINOVAC BIOTECH LTDSVA

8 13D/G filings 4 distinct filers 0 insider transactions (365d)

Post-Filing Returns · across 4 activist filings on this issuer

Median 30d

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avg —

Median 60d

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avg —

Median 90d

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Median 180d

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Returns measured from each activist filing's date_of_event, split + dividend adjusted via Yahoo Finance.

Activist filings

4 SCHEDULE · 4 SC

Distinct filers

multi-activist cluster

Insiders (365d)

0 buys · 0 sales

Latest short DTC

999.99

as of 2026-05-29

Filed	Form	Filer	Stake	Shares
2025-07-11	SCHEDULE	Vivo Capital VIII, LLC	6.30%	4,541,764	view →
2025-06-20	SCHEDULE	WEIDONG YIN	8.85%	6,359,500	view →
2025-04-29	SCHEDULE	SAIF Partners IV L.P.	15.00%	10,780,820	view →
2025-02-19	SCHEDULE	SAIF Partners IV L.P.	15.00%	10,780,820	view →
2023-03-15	SC	SAIF Partners IV L.P.	—	—	view →
2022-12-12	SC	SAIF Partners IV L.P.	—	—	view →
2020-12-21	SC	1Globe Capital LLC	—	—	view →
2019-03-19	SC	1Globe Capital LLC	—	—	view →

Settlement	Short Interest	Days to Cover	% Δ vs prior
2026-05-29	82,747	999.99	0.0%
2026-05-15	82,747	999.99	-0.0%
2026-04-30	82,758	999.99	0.0%
2026-04-15	82,758	999.99	0.0%
2026-03-31	82,758	999.99	0.0%
2026-03-13	82,758	999.99	0.0%
2026-02-27	82,758	999.99	0.0%
2026-02-13	82,758	999.99	0.0%
2026-01-30	82,758	999.99	0.0%
2026-01-15	82,758	999.99	0.0%
2025-12-31	82,758	999.99	0.0%
2025-12-15	82,758	999.99	+0.0%

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