Aug 7 (Reuters) - A Whole Foods Market Inc shareholder has accused the grocer in a lawsuit of committing securities fraud by concealing its overcharging of New York City customers, leading to bad publicity that hurt sales and drove its share price down. In a complaint filed on Thursday in federal court in Austin, Texas, the plaintiff Yochanan Markman said Whole Foods knew or recklessly disregarded that it routinely overstated the weight of pre-packaged products, causing the overcharging. The complaint said that made the company's public statements about its operations and prospects false and misleading. Whole Foods specializes in natural and organic goods. It has been sued several times by... More