Workiva Inc. (NYSE:WK - Get Free Report) EVP Brandon Ziegler sold 6,571 shares of the company's stock in a transaction on Thursday, August 20th. The shares were sold at an average price of $75.97, for a total transaction of $499,198.87. Following the completion of the sale, the executive vice president directly owned 126,216 shares in the company, valued at $9,588,629.52. This represents a 4.95% decrease in their ownership of the stock. The tran…