X0306 4 2018-02-26 0 0001631650 Aimmune Therapeutics, Inc. AIMT 0001644164 Nestle Health Science US Holdings, Inc. 1812 NORTH MOORE STREET ARLINGTON VA 22209 0 0 1 0 0000792990 NESTLE SA AVENUE NESTLE 55 CH-1800, VEVEY V8 SWITZERLAND 0 0 1 0 0001643723 NIMCO US, Inc. 1812 NORTH MOORE STREET ARLINGTON VA 22209 0 0 1 0 Common Stock 2018-02-26 4 P 0 937500 32.00 A 8489584 I See Footnote Common Stock 2018-11-28 4 P 0 3237529 30.27 A 11727113 I See Footnote Consists of 8,489,584 shares of Common Stock held by Nestle Health Science US Holdings, Inc. ("NHS"). NHS is a wholly owned subsidiary of NIMCO US, Inc. ("NIMCO"). The ultimate parent company of NHS and NIMCO is Nestle S.A. ("Nestle"). Each of these entities may be deemed to share voting and investment power with respect to all shares of Common Stock held by NHS. Each of NIMCO and Nestle disclaims beneficial ownership of such shares of Common Stock except to the extent of its pecuniary interest therein. Consists of 11,727,113 shares of Common Stock held by Nestle Health Science US Holdings, Inc. ("NHS"). NHS is a wholly owned subsidiary of NIMCO US, Inc. ("NIMCO"). The ultimate parent company of NHS and NIMCO is Nestle S.A. ("Nestle"). Each of these entities may be deemed to share voting and investment power with respect to all shares of Common Stock held by NHS. Each of NIMCO and Nestle disclaims beneficial ownership of such shares of Common Stock except to the extent of its pecuniary interest therein. NESTLE HEALTH SCIENCE US HOLDINGS, INC. By: Name: James Pepin, Title: Director and President 2020-04-24 NIMCO US, INC. By: Name: Dan Nugent, Title: Chief Legal Officer and General Counsel 2020-04-24 NESTLE S.A. By: Name: Gregory Behar, Title: Deputy Executive Vice President 2020-04-24