Momenta Pharmaceuticals, Inc. Information Request Form

Levi & Korsinsky, LLP has commenced an investigation into the fairness of the sale of Momenta Pharmaceuticals, Inc. (“Momenta” or the “Company”) (NASDAQ: MNTA) to Johnson & Johnson. Under the terms of the merger, a subsidiary of Johnson & Johnson will acquire all outstanding shares of Momenta common stock for $52.50 per share in cash.

The Momenta merger investigation concerns whether the Board of Momenta has harmed stockholders by agreeing to enter into this transaction and whether all material facts have been properly disclosed to stockholders.