George Massaro has not been actively trading shares of Charles River Laboratories International over the course of the past ninety days. Most recently, George Massaro sold 178 shares of the business's stock in a transaction on Monday, May 9th. The shares were sold at an average price of $230.96, for a transaction totalling $41,110.88. Following the completion of the sale, the director now directly owns 4,677 shares of the company's stock, valued at $1,080,199.92. Learn More on George Massaro's trading history.