David E. Simonelli has not been actively trading shares of Great Lakes Dredge & Dock within the last three months. Most recently, David E. Simonelli sold 17,700 shares of the business's stock in a transaction on Monday, May 9th. The shares were sold at an average price of $14.12, for a transaction totalling $249,924.00. Following the completion of the sale, the chief operating officer now directly owns 245,866 shares of the company's stock, valued at $3,471,627.92. Learn More on David E. Simonelli's trading history.