Nestlé (VTX:NESN) announced today that it entered into a definitive agreement to acquire food allergy treatment developer Aimmune Therapeutics (NSDQ:AIMT). Under the agreement, Nestlé Health Science (NHSc) would acquire Aimmune with a cash offer for $34.50 per share, totaling approximately $2.6 billion. The per-share price for Aimmune represents a 174% premium to the company’s closing share…