 NEW YORK--BUSINESS WIRE--Halper Sadeh LLP, a global investor rights law firm, is investigating whether the sale of Constellation Pharmaceuticals, Inc. NASDAQ: CNST to MorphoSys AG for 34.00 per share in cash is fair to Constellation shareholders. Halper Sadeh encourages Constellation shareholders to click here to learn more about their legal rights and options or contact Daniel Sadeh or Zachary Halper at 212 763-0060 or or The investigation 