SenesTech (SNES) manager Glenbrook discloses new indirect share buys

Rhea-AI Filing Summary

Glenbrook Capital Management, as reporting person, disclosed two indirect open‑market purchases of SenesTech, Inc. common stock made for PFS Trust and an employee profit‑sharing plan. On January 30, 2026, 5,399 shares were bought at $1.8718 per share. On February 2, 2026, 42,739 shares were bought at $1.9752 per share.

After these trades, 551,046 and then 593,785 SenesTech shares were reported as indirectly beneficially owned. The filing notes that Glenbrook Capital Management serves as investment manager to the entities holding the shares and disclaims beneficial ownership except to the extent of any pecuniary interest.

Insider Trade Summary

Net Buyer: 48,138 shares ($94,524)

Net Buy 2 txns

Insider GLENBROOK CAPITAL MANAGEMENT

Role 10% Owner

Bought 48,138 shs ($95K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	42,739	$1.9752	$84K
Purchase	Common Stock, $0.001 par value per share ("Common Stock")	5,399	$1.8718	$10K

Holdings After Transaction: Common Stock — 593,785 shares (Indirect, See footnote); Common Stock, $0.001 par value per share ("Common Stock") — 551,046 shares (Indirect, See footnote)

Footnotes (1)

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Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

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

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

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

3. Date of Earliest Transaction (Month/Day/Year)
01/30/2026

4. 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 Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock, $0.001 par value per share ("Common Stock")	01/30/2026		P		5,399	A	$1.8718	551,046	I	See footnote(1)
Common Stock	02/02/2026		P		42,739	A	$1.9752	593,785	I	See footnote(1)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

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 its pecuniary interest therein, if any.

	Glenbrook Capital Management, By: /s/ John David Kessler, Director	02/03/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transactions did Glenbrook Capital Management report for SNES?

Glenbrook Capital Management reported two indirect purchases of SenesTech (SNES) shares. Entities it manages acquired 5,399 shares at $1.8718 on January 30, 2026, and 42,739 shares at $1.9752 on February 2, 2026, increasing their reported indirect holdings.

How many SenesTech (SNES) shares are indirectly held after these trades?

Indirectly reported holdings rose to 593,785 SenesTech shares after the trades. Following the January 30, 2026 purchase, 551,046 shares were indirectly beneficially owned, increasing to 593,785 shares after the February 2, 2026 transaction reported in the Form 4.

At what prices were the recent SenesTech (SNES) insider share purchases made?

The indirect SenesTech purchases were made at prices under $2 per share. One trade on January 30, 2026 executed at $1.8718 per share, and another on February 2, 2026 executed at $1.9752 per share, according to the disclosed transactions.

Who actually holds the SenesTech shares reported by Glenbrook Capital Management?

The shares are held by PFS Trust and an employee profit‑sharing plan. Glenbrook Capital Management is the investment manager for PFS Trust and Glenbrook Capital Management Inc. Employee Profit‑Sharing Plan and reports the holdings while disclaiming beneficial ownership except for any pecuniary interest.

What ownership status does Glenbrook Capital Management report in relation to SenesTech (SNES)?

Glenbrook Capital Management is identified as a 10% owner of SenesTech. It reports the transactions as an investment manager for PFS Trust and an employee profit‑sharing plan and disclaims beneficial ownership of the securities except to the extent of any pecuniary interest it may have.

Are the reported SenesTech (SNES) insider transactions direct or indirect holdings?

The reported SenesTech transactions are classified as indirect holdings. The Form 4 lists the ownership form as indirect, with a footnote explaining that the securities are held by PFS Trust and an employee profit‑sharing plan for which Glenbrook Capital Management serves as investment manager.