GLENBROOK CAPITAL MANAGEMENT - 13 Mar 2026 Form 4 Insider Report for SenesTech, Inc. (SNES)

Role: 10%+ Owner
Signature: Glenbrook Capital Management, By: /s/ John David Kessler, Director
Issuer symbol: SNES
Transactions as of: 13 Mar 2026
Net transactions value: +$330,182
Form type: 4
Filing time: 17 Mar 2026, 20:10:19 UTC
Previous filing: 19 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
GLENBROOK CAPITAL MANAGEMENT	10%+ Owner	5396 AVENUE 18 1/2, CHOWCHILLA	Glenbrook Capital Management, By: /s/ John David Kessler, Director	17 Mar 2026	0001273782

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	SNES	Common Stock, $0.001 par value per share ("Common Stock")	Purchase	$285,434	+146,249	+20%	$1.95	865,850	13 Mar 2026	See footnote	F1, F2
transaction	SNES	Common Stock	Purchase	$9,392	+5,060	+0.58%	$1.86	870,910	16 Mar 2026	See footnote	F2
transaction	SNES	Common Stock	Purchase	$35,355	+19,725	+2.3%	$1.79	890,635	17 Mar 2026	See footnote	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The amount of securities beneficially owned by the Reporting Person following the transaction that occurred on February 17, 2026, as reported in column 5 of Table I of the Form 4 filed by the Reporting Person on February 19, 2026, was understated by 15,390 shares of Common Stock. This understatment affected the amount of securities beneficially owned by the Reporting Person as reported in column 5 of Table I in all subsequent transactions reported on that Form 4. The amount of securities beneficially owned by the Reporting Person following the transaction reported on this line corrects this understatement.
F2	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.

Content

The amount of securities beneficially owned by the Reporting Person following the transaction that occurred on February 17, 2026, as reported in column 5 of Table I of the Form 4 filed by the Reporting Person on February 19, 2026, was understated by 15,390 shares of Common Stock. This understatment affected the amount of securities beneficially owned by the Reporting Person as reported in column 5 of Table I in all subsequent transactions reported on that Form 4. The amount of securities beneficially owned by the Reporting Person following the transaction reported on this line corrects this understatement.

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.