What is the ruling on selling shares of mixed companies, and what is the amount of zakat that must be paid when selling all shares?

At Islamweb, we lean towards the opinion that it is impermissible to purchase shares of companies whose primary business is permissible but that engage in riba (interest). As for purification, it is achieved by disposing of the percentage of forbidden and doubtful earnings from every profit gained, whether it is operational profit or profit resulting from buying, selling, and speculation. This is because a share represents an undivided portion of the company's assets. Therefore, purification involves extracting the forbidden percentage of the profit and spending it on the welfare of Muslims or giving it to the poor and needy. The percentage of forbidden earnings that must be extracted from mixed companies can be determined by contacting the Zakat Fund.