Momenta Pharmaceuticals (MNTA +0.4%) holds on to gains in a weak tape after the company says...

|About: Momenta Pharmaceuticals, Inc. (MNTA)|By:, SA News Editor

Momenta Pharmaceuticals (MNTA +0.4%) holds on to gains in a weak tape after the company says it's seeking a temporary restraining order in its ongoing pursuit to prevent Watson Pharmaceuticals (WPI -4.9%) and its partners from launching a blood thinner product in the U.S.