The estimated net worth of Mary Agnes Wilderotter is at least $5.41 million as of June 7th, 2022. Ms. Wilderotter owns 11,295 shares of Costco Wholesale stock worth more than $5,410,870 as of September 29th. This net worth estimate does not reflect any other assets that Ms. Wilderotter may own. Learn More about Mary Agnes Wilderotter's net worth.