Group 1 - On December 5, 46 Hong Kong-listed companies conducted share buybacks, totaling 43.67 million shares and an aggregate amount of HKD 854 million [1][2] - Tencent Holdings repurchased 1.046 million shares for HKD 636 million, with a year-to-date total buyback amount of HKD 69.865 billion [1][2] - China COSCO Shipping repurchased 3 million shares for HKD 41.67 million, with a year-to-date total buyback amount of HKD 6.113 billion [1][2] - Kuaishou Technology repurchased 438,000 shares for HKD 29.99 million, with a year-to-date total buyback amount of HKD 2.395 billion [1][2] Group 2 - The highest buyback amount on December 5 was from Tencent Holdings at HKD 636 million, followed by China COSCO Shipping at HKD 41.67 million [1][2] - The largest number of shares repurchased on December 5 was by Jinxin Fertility, with 7.722 million shares, followed by Chalk Education and Anton Oilfield Services with 6.657 million and 5.586 million shares, respectively [1][2] - Notably, Jinxin Fertility and Green Tea Group conducted their first buybacks of the year on this date [2]