Sinovac Biotech Confirms Acquisition Offer, Shares Spike By: Benzinga via Benzinga February 01, 2016 at 11:23 AM EST Shares of Sinovac Biotech Ltd. (NASDAQ: SVA), a China-based biopharmaceutical company that focuses on vaccines that protect against ... Read More >> Related Stocks: Macy's Sinovac Biotech Ltd