年份 并购重组 高送转 再融资 股权激励 合计
2009 35.28% 32.58% 26.53% 19.05% 32.74%
2010 32.12% 35.07% 30.00% 30.43% 31.88%
2011 32.39% 23.22% 29.44% 17.70% 26.81%
2012 31.31% 28.14% 42.45% 23.21% 32.00%
总计 33.56% 28.16% 31.17% 22.39% 30.74%
表2:历年各类事项的交易知情密度