X0306 4 2019-08-14 0001680378 SenesTech, Inc. SNES 0001689608 Mayer Loretta Powers C/O SENESTECH, INC. 3140 N. CADEN COURT, SUITE 1 FLAGSTAFF AZ 86004 1 1 Chief Scientific Officer Common Stock 2019-08-14 4 S 0 20000.0000 1.2378 D 391165.0000 D Common Stock 2019-08-15 4 S 0 20000.0000 1.1867 D 371165.0000 D Common Stock 100000.0000 I 2016 Dyer Mayer Family Delaware Trust The price shown is a weighted average sales price. The shares were sold at prices ranging from $1.20 to $1.27 per share. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range. The price shown is a weighted average sales price. The shares were sold at prices ranging from $1.18 to $1.23 per share. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range. /s/ William Baker as Attorney-in-Fact 2019-08-16