Form 8-K

8-K — SenesTech, Inc.

Accession: 0001628280-26-065948

Filed: 2026-10-15

Period: 2026-10-15

CIK: 0001680378

SIC: 2870 (AGRICULTURE CHEMICALS)

Item: Results of Operations and Financial Condition

Item: Financial Statements and Exhibits

Documents

8-K — snes-20261015.htm (Primary)

EX-99.1 (snes-20261015xexx991.htm)

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8-K

8-K (Primary)

Filename: snes-20261015.htm · Sequence: 1

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF

THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): October 15, 2026

SenesTech, Inc.

(Exact name of registrant as specified in its charter)

Delaware 001-37941 20-2079805

(State or other jurisdiction

of incorporation) (Commission File Number) (I.R.S. Employer

Identification No.)

13430 North Dysart Road, Suite 105

Surprise, AZ

85379

(Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: (928) 779-4143

N/A

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock, $0.001 par value SNES

The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02. Results of Operations and Financial Condition.

On October 15, 2026, SenesTech, Inc. (the "Company") issued a press release announcing preliminary revenue for the three months ended September 30, 2026. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and incorporated herein by reference.

The preliminary revenue information included in the press release is unaudited and subject to the completion of the Company’s normal quarter-end financial reporting procedures. The Company’s actual results may differ from the preliminary information, and the Company expects to report its complete financial results for the third quarter of 2026 in its Quarterly Report on Form 10-Q.

The information contained in this Item 2.02, including Exhibit 99.1 attached hereto, is being furnished and shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, except as may be expressly set forth by specific reference in such a filing.

Item 9.01. Financial Statements and Exhibits.

(d)Exhibits.

Exhibit Number Exhibits

99.1

Press Release dated October 15, 2026.

104 Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: October 15, 2026 SENESTECH, INC.

By: /s/ Thomas C. Chesterman

Thomas C. Chesterman

Executive Vice President, Chief Financial Officer, Treasurer and Secretary

EX-99.1

Filename: snes-20261015xexx991.htm · Sequence: 2

Document

Exhibit 99.1

SenesTech Reports Record Preliminary Third Quarter Revenue Exceeding $1 Million, the Highest in Company History,

with 40% Sequential Growth

Preliminary Revenue of $1.1 Million is the Highest Quarterly Revenue in the Company’s History

SURPRISE, Ariz., Oct. 15, 2026 — SenesTech, Inc. (NASDAQ: SNES), the leader in rodent birth control and sustainable rodent population management, today announced preliminary revenue results for the third quarter of 2026. The Company plans to release its definitive third quarter financial results the week of November 9, 2026.

Preliminary third quarter 2026 revenue was approximately $1.1 million, representing approximately 40% growth compared with the second quarter of 2026 and approximately 55% growth compared with the third quarter of 2025. It was also the Company’s first quarter at or above the $1 million revenue threshold, a key milestone.

The Company expects its definitive third quarter financial results to reflect continued momentum in e-commerce, including higher subscription revenue, which is expanding the recurring component of SenesTech’s revenue base, as well as increasing traction in B2B.

“Our preliminary third quarter revenue marks an important milestone for SenesTech, reaching the $1 million threshold for the first time and setting a second consecutive quarterly record,” said Michael Edell, Chief Executive Officer of SenesTech. “This is another quarter demonstrating progress on the plans and strategies we have previously announced, and our full third quarter financial results are expected to reflect that progress across the commercial model we have been building. E-commerce continues to scale as a controllable, data-driven acquisition engine, our vertical-focused B2B organization is gaining traction, and higher subscription revenue is expanding our recurring revenue base and improving the quality and visibility of revenue.”

“We still have work to do, but we believe this is a clear indication that we are on the right path. We continue to lay the foundation for a much larger company in the future by working to expand e-commerce and B2B significantly in a cost-effective manner. With many of the investments and transition costs incurred earlier in the year increasingly behind us, coupled with strong revenue growth and improved unit economics, we expect continued, improved metrics going forward,” Edell concluded.

The preliminary third quarter 2026 revenue presented in this release is unaudited, preliminary and subject to adjustment, and remains subject to completion of the Company’s quarter-end closing procedures.

About SenesTech

SenesTech is the leader in rodent birth control and sustainable rodent population management, with a mission to support a healthier environment through the responsible management of animal pest populations. The Company's Evolve® and ContraPest® fertility control solutions, along with its assessment and monitoring services, target reproduction to help reduce rodent populations. SenesTech serves consumer and professional markets with proven approaches that can be used independently or as part of an integrated pest management (IPM) program.

For more information, visit https://senestech.com.

Forward-Looking Statements

This press release contains “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, which are intended to be covered by the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. These include statements regarding the Company’s expected third quarter 2026 revenue, anticipated momentum in e-commerce and increasing traction in B2B, expected progress across the Company’s commercial model, and anticipated continued, improved metrics going forward. Words such as “anticipate,” “believe,” “estimate,” “expect,” “intend,” “may,” “plan,” “project,” “should,” “will” and similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these words. Forward-looking statements are based on current expectations and assumptions and are subject to risks and uncertainties that could cause actual results to differ materially from those expressed or implied. These risks include the risk that the Company may not realize the benefits expected from its e-commerce, B2B and subscription strategies, or be successful in commercialization of its products, realize sufficient market acceptance of its products, or capitalize on market opportunities and accelerate growth; the risks of establishing an entirely new product category, including the time, expense and uncertainty of building market awareness and customer acceptance; the risk that the Company may not be able to build and scale a professional B2B sales organization and to execute a vertical-market strategy; risks related to the Company’s financial performance, including its ability to fund operations and potentially using cash at times and in ways other than as planned; and risks related to regulatory approval and regulation of the Company’s products. These and other risks are described more fully in the Company’s filings with the Securities and Exchange Commission, including under “Risk Factors” in its Annual Report on Form 10-K for the fiscal year ended Dec. 31, 2025, and subsequent Quarterly Reports on Form 10-Q. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date of this release. Except as required by law, SenesTech undertakes no obligation to update or revise any forward-looking statement.

Contacts:

Investor: Robert Blum, Lytham Partners, LLC, 602-889-9700, senestech@lythampartners.com

Company: Tom Chesterman, Chief Financial Officer, SenesTech, Inc., 928-779-4143

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