Funds purchased by directors of a listed company cannot invest in the equity of the listed company. According to the relevant public information, insiders such as directors, executives and shareholders holding more than 5% of shares in listed companies cannot directly invest in the company's equity by purchasing funds. This is because these people are internal personnel of the company, and they are prone to conflicts of interest in operation and are easily restricted by supervision. Therefore, these insiders need to abide by relevant laws and regulations and follow the internal supervision system formulated by the company.