Benzinga's Top #PreMarket Gainers By: Benzinga via Benzinga July 06, 2015 at 08:17 AM EDT Weight Watchers International, Inc. (NYSE: WTW) shares climbed 29.34 percent to $5.29 in pre-market trading on takeover talks. ... Read More >> Related Stocks: Aetna American Airlines Gp Humana Vivus Inc Willis Towers Watson Public Ltd