Glenbrook Capital Management (SNES) reports new open-market stock purchases

Rhea-AI Filing Summary

Glenbrook Capital Management, a 10% owner of SenesTech, Inc. (SNES), reported three indirect open-market purchases of common stock. On February 11, 12, and 13, 2026, investment entities it manages bought 8,000, 7,956, and 15,390 SenesTech common shares at per-share prices between $1.7205 and $1.8912. After these transactions, a total of 633,700 common shares were reported as beneficially owned on an indirect basis. The shares are held by PFS Trust and the Glenbrook Capital Management Inc. Employee Profit-Sharing Plan, with Glenbrook acting as investment manager and disclaiming beneficial ownership except to the extent of any pecuniary interest.

Insider Trade Summary

Net Buyer: 31,346 shares ($56,667)

Net Buy 3 txns

Insider GLENBROOK CAPITAL MANAGEMENT

Role 10% Owner

Bought 31,346 shs ($57K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	15,390	$1.8912	$29K
Purchase	Common Stock	7,956	$1.7205	$14K
Purchase	Common Stock, $0.001 par value per share ("Common Stock")	8,000	$1.7342	$14K

Holdings After Transaction: Common Stock — 633,700 shares (Indirect, See footnote); Common Stock, $0.001 par value per share ("Common Stock") — 610,354 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)
02/11/2026

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")	02/11/2026		P		8,000	A	$1.7342	610,354	I	See footnote(1)
Common Stock	02/12/2026		P		7,956	A	$1.7205	618,310	I	See footnote(1)
Common Stock	02/13/2026		P		15,390	A	$1.8912	633,700	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	02/13/2026
	** 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 activity did Glenbrook Capital Management report for SenesTech (SNES)?

Glenbrook Capital Management reported three indirect open-market purchases of SenesTech common stock. On February 11, 12, and 13, 2026, managed entities acquired 8,000, 7,956, and 15,390 shares, respectively, increasing reported indirect beneficial ownership to 633,700 shares.

On what dates were SenesTech (SNES) shares bought by entities managed by Glenbrook Capital Management?

The purchases occurred on February 11, 12, and 13, 2026. Each date involved an open-market purchase of SenesTech common stock, with the reported transactions summarized in Table I of the filing as non-derivative acquisitions coded “P” for purchase.

How many SenesTech (SNES) shares are indirectly beneficially owned after these transactions?

After the reported trades, 633,700 shares of SenesTech common stock are listed as beneficially owned on an indirect basis. This figure reflects holdings following the February 13, 2026 purchase, as disclosed in the Form 4 ownership column for non-derivative securities.

Who actually holds the SenesTech (SNES) shares related to Glenbrook Capital Management’s Form 4?

The shares are held directly by PFS Trust and the Glenbrook Capital Management Inc. Employee Profit-Sharing Plan. Glenbrook Capital Management serves as investment manager for these entities and reports the holdings while disclaiming beneficial ownership except for any pecuniary interest.

What prices were paid for the SenesTech (SNES) shares in the reported insider purchases?

The reported open-market purchases were executed at per-share prices of $1.7342, $1.7205, and $1.8912. Each price corresponds to a separate transaction date and share amount as listed in Table I of the non-derivative securities section.

Is Glenbrook Capital Management a 10% owner of SenesTech (SNES)?

Yes. The Form 4 identifies Glenbrook Capital Management as a 10% owner of SenesTech. The firm reports indirect holdings through entities it manages, while expressly disclaiming beneficial ownership beyond any pecuniary interest in those securities.