3 sentences

1. 大股东决定减持公司的部分股份。

   dà gǔ​dōng jué​dìng jiǎn​chí gōng​sī de bù​fen gǔ​fèn.

   The major shareholder decided to reduce their stake in the company.

   Source: Dong Chinese Dictionary

2. 大股东在董事会中拥有很大的话语权。

   dà gǔ​dōng zài dǒng​shì​huì zhōng yōng​yǒu hěn dà de huà​yǔ​quán.

   Major shareholders have a significant say in the board of directors.

   Source: Dong Chinese Dictionary

3. 由于看好公司前景，大股东决定继续增持股票。

   yóu​yú kàn​hǎo gōng​sī qián​jǐng, dà gǔ​dōng jué​dìng jì​xù zēng​chí gǔ​piào.

   Optimistic about the company's prospects, the major shareholders decided to continue increasing their holdings.

   Source: Dong Chinese Dictionary