X0306 4 2016-11-23 0 0001631650 Aimmune Therapeutics, Inc. AIMT 0001643766 Behar Gregory C/O AIMMUNE THERAPEUTICS, INC. 8000 MARINA BOULEVARD, SUITE 300 BRISBANE CA 94005-1884 1 0 0 0 Stock Option (right to buy) 24.90 2016-11-23 4 A 0 39510 0.00 A 2026-11-22 Common Stock 39510 39510 D The shares subject to the option will vest and become exercisable with respect to 1/36th of the total number of shares subject to the option in successive, equal monthly installments measured from November 23, 2016, subject to the Reporting Person's continued service relationship with the Issuer on each such vesting date. /s/ Douglas T. Sheehy, as Attorney-in-Fact for Gregory Behar 2016-11-28