Benzinga's Top #PreMarket Gainers

Aerie Pharmaceuticals Inc AERI gained 48.46 percent to $19.70 in pre-market trading on news that regulators agreed to a new primary endpoint for its study of its proposed glaucoma treatment. Needham upgraded Aerie Pharmaceuticals from Hold to Buy. Ultra Clean Holdings Inc UCTT shares rose 4 percent to $6.50 in pre-market trading after gaining 2.12 percent on Monday. Grifols SA, Barcelona GRFS shares climbed 1.48 percent to $30.85 in pre-market trading after falling 2.50 percent on Monday. Procter & Gamble Co PG shares rose 1.25 percent to $79.10 in pre-market trading. Coty has purchased P&G's beauty product lines for $12 billion and also has won an auction for P&G's hair-care unit, a source familiar with the matter told Reuters. Central European Media Enterprises Ltd. CETV shares climbed 1.11 percent to $2.27 in pre-market trading after dropping 1.54 percent on Monday.