X0306 4 2017-07-26 0 0001680378 SenesTech, Inc. SNES 0001689618 Williams Julia Ann 3140 NORTH CADEN COURT, #1 FLAGSTAFF AZ 86004 1 0 0 0 Common Stock 2017-07-26 4 P 0 10000 3.2099 A 11950 D Common Stock 27262 I Trustee of Julia A. Williams MD Trust Common Stock 1000 I Trustee of Flagstaff Emergency Physicians Profit Sharing Plan Common Stock 4000 I Owner of Wild Erp, LLC Common Stock 4000 I Founder and President of HERO Trust The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $3.06 to $3.25, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. /s/ Julia Ann Williams 2017-07-26