Summary of Key Points Core Viewpoint - On December 5, a total of 21 listed companies disclosed share reduction situations, while Meilixin announced plans for share buybacks ranging from 50 million to 100 million yuan [1][3]. Group 1: Share Buybacks - Meilixin's controlling shareholder plans to buy back shares worth between 50 million and 100 million yuan [2][4]. Group 2: Share Reductions - Several companies announced share reductions, including: - Saiwei Electronics: Directors and executives plan to reduce holdings by up to 152,200 shares [2][4]. - Tianci Materials: Directors and senior management plan to reduce holdings by up to 924,000 shares [2][4]. - Oujing Technology: Shareholder Wanzhao Huigu plans to reduce holdings by up to 3% [2][4]. - Yue Wannianqing: Hehe Investment reduced holdings by 2,183,900 shares from December 3 to 4 [2][4]. - New Media Shares: Shareholder Hengqin Hongtu Rongyao plans to reduce holdings by up to 0.11% [2][4]. - Others include Sai Lisi, Quanxin Hao, Mingxin Xuteng, Dongxing Medical, Aiyu Shares, and more, with various percentages and share counts disclosed [2][4].