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The increase or decrease plans of major shareholders (controlling shareholders or their concert parties, actual controllers or their concert parties, general shareholders holding more than 5%, and senior executives) can create actual buying or selling pressure on listed companies' stock prices and have an obvious impact on market confidence, often containing investment opportunities or risks. In the past month (September 16 to October 15), a total of 26 companies disclosed plans by major shareholders to increase their holdings, among which Shandong Road and Bridge Group Co., Ltd. (SZ: 000498), Kailun Co., Ltd. (SZ: 300715), Tianchuang Co., Ltd. (SZ: 300703), Ningbo Dongli Transmission Co., Ltd. (SZ: 002164), and Wuzhou Communications Co., Ltd. (SH: 600368) ranked highest in terms of the ratio of the lower limit of their increase plan amounts to market value. After Shandong Road and Bridge Group Co., Ltd. released its large increase plan, the company's stock price continued to rise. The controlling shareholder of Wuzhou Communications Co., Ltd. released another increase plan after completing its previous one, and the company is also implementing a buyback plan.
In the past month, 167 companies disclosed plans by major shareholders to reduce their holdings, among which 39 companies had a total upper limit reduction ratio of 3% or more. There were 5 companies with a total upper limit reduction ratio of 4% or more, namely Shanghai Mengke Pharmaceutical Co., Ltd. (SH: 688373), Yunhan Xincheng (SZ: 301563), Heda Technology Co., Ltd. (SH: 688296), Xintong Electronics (SZ: 001388), and Newtouch Software Co., Ltd. (SH: 688590).
In the past month, a total of 26 companies disclosed increase plans, among which the companies with the highest ratios of the lower limit of their increase plan amounts to market value (as of October 15) were Shandong Road and Bridge Group Co., Ltd., Kailun Co., Ltd., Tianchuang Co., Ltd., Ningbo Dongli Transmission Co., Ltd., and Wuzhou Communications Co., Ltd., with ratios of 4.59%, 2.55%, 1.98%, 1.37%, and 1.31%, respectively. The largest ratio of the lower limit increase amount to market value was Shandong Road and Bridge Group Co., Ltd. According to the company's announcement on September 23, its controlling shareholder Shandong Hi-Speed Group Co., Ltd. and its concert party Shandong Hi-Speed Investment Holding Co., Ltd. planned to increase their holdings by 450 million yuan to 900 million yuan within 6 months from the date of the announcement. The next day after the announcement, the company's stock price hit the 10% limit up, and then continued to fluctuate upward, from the closing price of 5.14 yuan on September 23 to a high of 6.84 yuan on October 13, with a maximum increase of 33% within 8 trading days after the announcement. As of October 16, the company's stock price closed at 6.6 yuan, with a price-to-earnings ratio (TTM) of 5.31 times.
The ratio of the lower limit of the increase plan amount to market value for a major shareholder of Kailun Co., Ltd. was also relatively large. According to the announcement by Kailun Co., Ltd. on October 15, its shareholder holding more than 5%, Silicone Color Optoelectronics, planned to adjust the increase amount to no less than 140 million yuan and no more than 280 million yuan. Previously, the increase plan announced on September 16 showed that the original amount range was 60 million yuan to 120 million yuan. Silicone Color Optoelectronics increased a total of 5.2898 million shares through centralized bidding during October 13 to October 14, 2026, accounting for 1.4047% of the total share capital after deducting the buyback account. After this increase, the shareholding ratio of Silicone Color Optoelectronics and its concert parties rose from 14.9999% to 16.4046%. The main businesses of Kailun Co., Ltd. are new building waterproofing materials and new display panel signal, detection, and compensation repair businesses.
The ratio of the lower limit of the increase plan amount to market value for Tianchuang Co., Ltd. was also relatively large. On September 21, 2026, Tianchuang Co., Ltd. received a notice from its controlling shareholder Anhui Xianrui, which, based on firm confidence in the company's development prospects and recognition of its long-term investment value, and to enhance investor confidence, planned to increase its holdings through centralized bidding via the Shanghai Stock Exchange system within 6 months from September 22, 2026, with a cumulative increase amount of no less than 150 million yuan and no more than 300 million yuan. As of October 16, the company's price-to-earnings ratio (TTM) was 214.2 times.
Wuzhou Communications Co., Ltd. not only has an increase plan but also a buyback plan. The controlling shareholder Guangxi Communications Investment Group Co., Ltd. planned to increase its holdings of A-shares by 89.045 million yuan to 178.09 million yuan within 12 months from October 8, 2026, with the increase ratio not exceeding 2% of the company's total share capital. From September 15, 2025 to September 3, 2026, this shareholder had cumulatively increased its holdings by 32.193 million shares, accounting for about 2% of the total share capital, with a cumulative increase amount of 135 million yuan. Meanwhile, on October 13, the company released a buyback plan, proposing to repurchase 60 million yuan to 120 million yuan of its shares, intended for conversion of convertible corporate bonds issued by the company. As of October 16, the company's price-to-earnings ratio (TTM) was 12.4 times.
In the past month, a total of 167 companies had major shareholders disclose reduction plans, among which 39 companies had a total upper limit reduction ratio of 3% or more; 5 companies had a total upper limit reduction ratio of 4% or more, namely Shanghai Mengke Pharmaceutical Co., Ltd., Yunhan Xincheng, Heda Technology Co., Ltd., Xintong Electronics, and Newtouch Software Co., Ltd., with total upper limit reduction ratios of 6%, 4.8%, 4.74%, 4.25%, and 4%, respectively. The largest total upper limit reduction ratio was Shanghai Mengke Pharmaceutical Co., Ltd., involving reductions by 3 major shareholders. The company's announcement on September 23 showed that shareholder BestIdea planned to reduce its holdings by no more than 19.6869 million shares, or no more than 3% of the total share capital, through centralized bidding and block trades based on market conditions; shareholders JSR and GPTMT as concert parties planned to reduce their holdings by no more than 19.6682 million shares, or no more than 3% of the total share capital, through centralized bidding and block trades based on market conditions. It is worth noting that Shanghai Mengke Pharmaceutical Co., Ltd. currently has no controlling shareholder and no actual controller, and the company is still in a loss-making state.
The total upper limit reduction ratio for shareholders of Yunhan Xincheng was also relatively high. Yunhan Xincheng announced on October 13 that multiple shareholders planned to reduce a total of no more than 4.8% of the company's total share capital through centralized bidding or block trades during November 4, 2026 to February 3, 2027. The shares involved in these reductions were held by the shareholders before the company's initial public offering and were all released from lock-up and listed for trading on September 30, 2026. It is worth noting that Yunhan Xincheng's stock price has recently remained weak, hitting a new low in the past year, down about 60% from the June high of 232.58 yuan.
Heda Technology Co., Ltd. announced on September 28 that its shareholder Gongqingcheng Dongxing Boyuan Investment Center (Limited Partnership) planned to reduce no more than 4.64% of the company's shares during October 9, 2026 to January 8, 2027; company director Mr. Wang Xiaopeng planned to reduce no more than 0.10% of the company's shares during October 27, 2026 to January 26, 2027. Heda Technology Co., Ltd. experienced a significant rise from July to September this year, from 11.46 yuan in early July to a high of 29.86 yuan on September 24, with a maximum increase of over 160% during the period. The company has been continuously losing money since 2023. As of October 16, the company's stock price closed at 20.48 yuan. (The content of this article is for reference only and does not constitute investment advice. Investing based on this information is at your own risk.)
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