Merck (NYSE: MRK), known as MSD outside the United States and Canada,
today announced data for its investigational Timothy grass sublingual
allergy immunotherapy tablet (MK-7243) from a study involving 1,501
North American adult and pediatric patients.

Alexion Pharmaceuticals (NASDAQ: ALXN) today announced that
researchers presented data from four clinical trials, all demonstrating
the clinical benefits of Soliris® (eculizumab) for the
treatment of atypical hemolytic uremic syndrome (aHUS), a genetic,
chronic, ultra-rare disease associated with vital org

Finally, the biggest IPO to hit Wall Street this year took place. Twitter (NASDAQ: TWTR) IPOed Thursday at 10:51 a.m. in New York at an opening price of $45.25—73 percent higher than its offering price of $26. Here's how the biggest week in Twitter's history went down.

Monday:

Very mixed news has been released lately on Tata Motors

Neptune Technologies & Bioressources (Nasdaq: NEPT) announces that it intends to oppose a statement of offense issued by the Commission de la santé et de la sécurité du travail (CSST), the Québec commission overseeing health and safety in the workplace.

The statement, which was recently received, seeks payment of a fine of approximately $64,000

Suntech Power Holdings (NYSE: STP) today announced that the Grand Court of the Cayman Islands, the jurisdiction of its incorporation, has granted the Company's application for a provisional liquidation.