| 报告时间 | 股东名称 | 持股数量(股) | 占总股本比例(%) |
| 2014-09-30 | 杨芝宝 | 1,170,547 | 0.53 |
| 2013-12-31 | 杨芝宝 | 1,560,729 | 0.70 |
| 2013-09-30 | 杨芝宝 | 1,560,729 | 0.70 |
| 2013-03-31 | 杨芝宝 | 2,080,972 | 0.94 |
| 2012-12-31 | 杨芝宝 | 2,065,972 | 0.93 |
| 2012-06-30 | 杨芝宝 | 2,754,629 | 1.24 |
| 2011-12-31 | 杨芝宝 | 2,754,629 | 1.24 |
| 2011-06-30 | 杨芝宝 | 3,072,839 | 1.38 |
| 2010-12-31 | 杨芝宝 | 2,363,722 | 1.38 |
| 2010-08-09 | 杨芝宝 | 2,363,722 | 1.38 |
| 2010-07-20 | 杨芝宝 | 2,363,722 | 1.85 |