SenesTech, Inc. — Director's Dealing 2026

Feb 2, 2026

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: SenesTech, Inc. (SNES)
CIK: 0001680378
Period of Report: 2026-01-29

Reporting Person: GLENBROOK CAPITAL MANAGEMENT (10% Owner)

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock, $0.001 par value per share ("Common Stock")	545647	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Series I Common Stock Warrants (right to buy)	$5.25	2026-11-13	Common Stock (90000)		Indirect

Footnotes

F1: The securities to which this filing relates are held directly by PFS Trust ("PFS Trust") and Glenbrook Capital Management Inc. Employee Profit-Sharing Plan ("GCM EPSP"). Glenbrook Capital Management (the "Reporting Person") serves as the investment manager to each of PFS Trust and GCM EPSP. The Reporting Person disclaims beneficial ownership of the securities to which this filing relates for purposes of Section 16 of the Securities and Exchange Act of 1934, as amended, except to the extent of his or its pecuniary interest therein, if any.

F2: Pursuant to the terms of the Series I Common Stock Warrants (the "Warrants"), the Reporting Person cannot exercise any of the Warrants to the extent the Reporting Person would beneficially own, after any such exercise, more than 4.99% of the outstanding Common Stock (the "4.99% Blocker") for the Warrants held by GCM EPSP, or 9.99% of the outstanding Common Stock (the "9.99% Blocker") for the Warrants held by PFS Trust. Consequently, at this time, the Reporting Person is not able to exercise the Warrants reported herein due to the 4.99% Blocker and the 9.99% Blocker.