Gerdau S.A. (NYSE:GGB - Get Free Report) EVP Mauricio Metz sold 5,000 shares of Gerdau stock in a transaction that occurred on Wednesday, May 13th. The shares were sold at an average price of $4.85, for a total transaction of $24,250.00. Following the transaction, the executive vice president owned 34,536 shares of the company's stock, valued at $167,499.60. The trade was a 12.65% decrease in their ownership of the stock. The transaction was dis…