NEW YORK--(BUSINESS WIRE)--Halper Sadeh LLC, an investor rights law firm, is investigating whether the sale of Exact Sciences Corporation (NASDAQ: EXAS) to Abbott for $105.00 per common share in cash is fair to Exact Sciences shareholders. Halper Sadeh encourages Exact Sciences 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 sadeh@halpersadeh.com or zhalper@halpersadeh.com. The investigation concerns wh. ...