Mary Agnes Wilderotter has not been actively trading shares of Costco Wholesale during the past quarter. Most recently, on Tuesday, June 7th, Mary Agnes Wilderotter bought 850 shares of Costco Wholesale stock. The stock was acquired at an average cost of $470.74 per share, with a total value of $400,129.00. Following the completion of the transaction, the director now directly owns 11,295 shares of the company's stock, valued at $5,317,008.30. Learn More on Mary Agnes Wilderotter's trading history.