Tencent Holdings Ltd. repurchased the most shares in nearly two decades after a selloff sparked by the tech firm’s addition to a US blacklist for alleged links to the Chinese military.China’s most valuable company bought back 3.93 millionBloomberg Terminal Hong Kong-listed shares on Tuesday, the most since April 2006, Bloomberg-compiled data show. The stock fell 7.3% that day even as the social media giant denied the allegations. The company said it will work with the Department of Defense to ad...