Aflac Incorporated (NYSE:AFL - Get Free Report) major shareholder Post Holdings Co. Ltd. Japan sold 113,611 shares of the company's stock in a transaction dated Thursday, October 15th. The stock was sold at an average price of $118.53, for a total transaction of $13,466,311.83. Following the sale, the insider directly owned 50,134,329 shares of the company's stock, valued at $5,942,422,016.37. This represents a 0.23% decrease in their position. …