X0306 4 2020-03-04 0001460702 RITTER PHARMACEUTICALS INC RTTR 0001631674 Ritter Ira E. RITTER PHARMACEUTICALS, INC. 1880 CENTURY PARK EAST, SUITE 1000 LOS ANGELES CA 90067 1 1 0 0 COB, CSO Common Stock 2020-03-04 4 S 0 18750 .3756 D 81727 I By Stonehenge Partners LLC Common Stock 625 I By Trust As a managing partner of Stonehenge Partners LLC, the Reporting Person may be deemed the beneficial owner of these shares. The Reporting Person expressly disclaims beneficial ownership over these shares except to the extent of his pecuniary interest therein. These shares are held in a retirement plan trust of which the Reporting Person and his spouse are trustees. The Reporting Person's spouse and the revocable trust of the Reporting Person and his spouse are beneficiaries of the retirement plan trust. The Reporting Person expressly disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein. /s/ Andrew J. Ritter, attorney-in-fact 2020-03-13