Cubist Pharmaceuticals, Inc (NASDAQ:CBST) is a biopharmaceutical company focused on the research, development and commercialization of pharmaceutical products that address unmet medical needs in the acute care environment. Cubist Pharmaceuticals, Inc achieved its new 52 week high price of $40.67 where it was opened at $39.80 UP 0.43 points or +1.08% by closing at $40.17.