X0306 4 2020-06-18 0001680378 SenesTech, Inc. SNES 0001689618 Williams Julia Ann C/O SENESTECH, INC. 23460 N. 19TH AVE, STE 110 PHOENIX AZ 85027 1 Common Stock 2020-06-18 4 M 0 423.0000 0 A 8161.9500 I Julia A. Williams MD Trust Common Stock 1187.5000 I Flagstaff Emergency Physicians Profit Sharing Plan Common Stock 400.0000 I HERO Common Stock 250.0000 I Wild Erp, LLC Restricted Stock Units 2020-06-18 4 M 0 423.0000 0.0000 D 2020-06-18 Common Stock 423.0000 0.0000 D On February 4, 2020, the Issuer effected a 1-for-20 reverse stock split of its common stock (the "Reverse Stock Split"). The amount of securities reported on this Form 4 have been adjusted to reflect the Reverse Stock Split. The restricted stock units are settled for shares of common stock on a one-for-one basis. The reporting person disclaims beneficial ownership of these shares except to the extent of the reporting person's pecuniary interest in the shares. The amount of securities reported on this Form 4 have been adjusted to reflectthe Reverse Stock Split. Humanitarian Efforts Reaching Out, a nonprofit Arizona Corporation ("HERO"). Dr. Williams is the founder and President of HERO. The restricted stock units vest in full on the earlier of the date of the Company's 2020 annual stockholder meeting, or the one-year anniversary of the date of grant (subject to recipient's continued service to the Company through such vesting date). /s/ William Baker as Attorney-in-Fact 2020-06-22