November 23 -- Pharmaceutical company Gansu Duyiwei Biological Pharmaceutical (002219.SZ) said controlling shareholder natural person Que Wenbin, reduced his shareholding in the company by five million shares, or a 1.34 percent stake, at 12.59 yuan per share on November 22, reports yicai.com, citing a company filing.

Since November 9, Que has sold a total of 15 million shares, equivalent to a 4.01 percent stake, in the company, and currently holds a 61.94 percent stake, or 231 million shares.

Acording to a filing on November 4, Que said he plans to decrease his stake in the listed company by between five percent and ten percent over the next six months, in order to invest in other areas.