My sister is a shareholder in a limited company. Is there any limit on the shareholding ratio of shareholders in limited companies?

The maximum shareholding ratio of the largest shareholder is: the maximum shareholding ratio in the Hong Kong Stock Exchange does not exceed 37%. The upper limit of Shanghai (Shenzhen) Stock Exchange shall not exceed 75%. Article 86 of the Securities Law of People's Republic of China (PRC): When the tender offer period expires and the shares of the acquired company held by the purchaser reach more than 75% of the total issued shares of the company, the listing of the listed company shall be terminated on the stock exchange. This provision is based on the following principles: one of the conditions of a listed company is that the shares publicly issued to the public should account for more than 25% of the total shares of the company, and the number of shareholders holding shares with a par value of more than 1000 yuan should not be less than 1000. After the acquisition, because the purchaser, as a shareholder, has already held more than 75% of the shares of a listed company through acquisition activities, then the listed company no longer has the listing conditions stipulated in the Company Law. Therefore, the listing and trading of the company's shares in the stock exchange should be terminated according to law. # # A major shareholder refers to a shareholder whose capital contribution accounts for more than 50% of the total capital of a limited liability company or whose shares account for more than 50% of the total share capital of a joint stock limited company; Although the capital contribution or the proportion of shares held is less than 50%, but according to their capital contribution or shares held, shareholders have enough voting rights to the shareholders' meeting and the resolutions of the shareholders' meeting. The largest shareholder with a total share capital of less than 400 million yuan has a maximum shareholding ratio of 75%, and the largest shareholder with a total share capital of more than 400 million yuan has a maximum shareholding ratio of 90%. Ownership structure is the basis of corporate governance mechanism, which determines the shareholder structure, the degree of equity concentration, the status of major shareholders, the way and effect of shareholders exercising power, and then has a great impact on the formation, operation and performance of corporate governance model, in other words, the ownership structure has a direct effect on the internal supervision mechanism in corporate governance; At the same time, on the one hand, the ownership structure is greatly influenced by the external governance mechanism of the company, on the other hand, the ownership structure also has an indirect effect on the external governance mechanism.