Glenbrook Capital (SNES) reports indirect SenesTech share and warrant stakes

Rhea-AI Filing Summary

Glenbrook Capital Management, as a 10% owner of SenesTech, Inc. (SNES), reports indirect holdings of 545,647 shares of Common Stock and 90,000 Series I Common Stock Warrants. The securities are held by PFS Trust and Glenbrook Capital Management Inc. Employee Profit-Sharing Plan.

Glenbrook Capital Management serves as investment manager to these entities and disclaims beneficial ownership except for any pecuniary interest. The Series I Warrants, with a $5.25 exercise price and expiring on 11/13/2026, are subject to 4.99% and 9.99% ownership blockers that currently prevent their exercise.

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

GLENBROOK CAPITAL MANAGEMENT

(Last) (First) (Middle)

5396 AVENUE 18 1/2

(Street)

CHOWCHILLA CA 93610

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
01/29/2026

3. Issuer Name and Ticker or Trading Symbol
SenesTech, Inc. [ SNES ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock, $0.001 par value per share ("Common Stock")	545,647	I	See footnote(1)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Series I Common Stock Warrants (right to buy)	08/13/2025	11/13/2026	Common Stock	90,000(2)	$5.25	I	See footnote(1)

Explanation of Responses:

1. 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.

2. 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.

	Glenbrook Capital Management, By: /s/ John David Kessler, Director	02/02/2026
	** Signature of Reporting Person	Date
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FAQ

What insider position does Glenbrook Capital Management report in SenesTech (SNES)?

Glenbrook Capital Management reports status as a 10% owner of SenesTech, Inc. It is the investment manager for PFS Trust and an employee profit-sharing plan that together hold SenesTech Common Stock and Series I Common Stock Warrants, all reported on this Form 3 filing.

How many SenesTech (SNES) common shares are indirectly held according to this Form 3?

The filing shows 545,647 shares of SenesTech Common Stock indirectly held. These shares are owned by PFS Trust and Glenbrook Capital Management Inc. Employee Profit-Sharing Plan, with Glenbrook Capital Management acting as investment manager and disclaiming beneficial ownership except for any pecuniary interest.

What SenesTech (SNES) warrants does Glenbrook-related entities hold and on what terms?

The filing reports 90,000 Series I Common Stock Warrants, each giving the right to buy SenesTech Common Stock at an exercise price of $5.25. The warrants become exercisable on 08/13/2025 and expire on 11/13/2026, subject to ownership limitation blockers described in the footnotes.

Who actually holds the SenesTech (SNES) securities reported by Glenbrook Capital Management?

The securities are held directly by PFS Trust and Glenbrook Capital Management Inc. Employee Profit-Sharing Plan. Glenbrook Capital Management serves as investment manager for both entities and disclaims beneficial ownership of the securities, except to the extent of any pecuniary interest it may have.

What are the 4.99% and 9.99% blockers on SenesTech (SNES) warrants in this filing?

The Series I Warrants include ownership limits: 4.99% for warrants held by the employee profit-sharing plan and 9.99% for warrants held by PFS Trust. These caps prevent exercises that would push beneficial ownership above those levels and currently block exercise of the reported warrants.

Is Glenbrook Capital Management currently able to exercise its SenesTech (SNES) Series I warrants?

The filing states that, due to the 4.99% and 9.99% ownership blockers in the warrant terms, Glenbrook Capital Management is not able to exercise the reported Series I Warrants at this time, because doing so would exceed the allowed beneficial ownership thresholds.