On the MoveConsumerInsider buying at GNC HoldingsNov. 15, 2017 9:23 AM ETGNC Holdings, Inc. (GNC) StockGNCBy: Clark Schultz, SA News Editor13 Comments GNC Holdings (NYSE:GNC) Executive Vice President and Chief Marketing Officer Tim Mantel acquired more than $110K worth of shares in a new round of buying. Mantel picked up the shares at a price of $5.80. SEC Form 4 GNC +1.56% premarket to $5.87. Recommended For YouRelated StocksSymbolLast Price% ChgGNC--GNC Holdings, Inc.Trending AnalysisTrending News