According to a report from Yahoo News, Zynga CEO Mark Pincus sold US $200 million worth of stock three months before Zynga's massive stock valuation slump yesterday.

Yahoo also stated that other investors and members of the leadership team, such as Zynga's CFO, COO and General Counsel also sold a combined 43 million shares of stock at US $12 a share, or US $516 million in total.

All of the stock sold in the offering was sold by Zynga insiders, and none of the cash raised in the offering went to the company.

Pincus, who still owns an estimated 67 million shares in the company, announced yesterday that Zynga will launch its first real-money online gambling poker game in the first half of 2013.