Western Digital Corporation (NASDAQ:WDC - Get Free Report) insider Cynthia Tregillis sold 684 shares of the company's stock in a transaction on Monday, August 24th. The stock was sold at an average price of $446.17, for a total value of $305,180.28. Following the transaction, the insider directly owned 112,146 shares in the company, valued at approximately $50,036,180.82. The trade was a 0.61% decrease in their ownership of the stock. The sale w…