Michael J.G. Gleissner, an investor from Germany, has acquired 3.43 million shares from Chinese web portal Sina.com (SINA).

This accounts for 6.4% of Sina's outstanding shares, and Gleissner now becomes the company's second largest shareholder, only next to Shanda.

Shen Jianming, a representative from Sina.com, tells local media that the investment has been made by a venture capital fund controlled by Gleissner, who had founded Telebook, the largest online bookstore in Germany.

Shen says that the investment will not have any large influence on the business of Sina.com.