以2006-2012年的定向增发事件为背景,考察大股东减持定向增发限售股的行为,证明其择时减持定向增发限售股获得超额收益是大股东积极参与定向增发的主要动机,其择时能力来源于大股东对于上市公司的控制力和影响力,并且大股东减持行为很可能给其他股东以及中小投资者的利益造成损害。
Taking 2006-2012 private placement events as context,the paper investigates large shareholders' stock selling of private placement restricted shares,proving large shareholders getting excess income by their timing stock selling of private placement restricted shares is large shareholders' main motivation to participate in private placement,the market timing ability is associated with their control-degree and influence ability to listed corporates,and their stock selling could encroach on small and medium-sized shareholders' benefit.