Entero Therapeutics Inc.

11/17/2025 | Press release | Distributed by Public on 11/17/2025 15:01

Late Filing Notice (Form NT 10-Q)

UNITEDSTATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 12b-25

SEC FILE

NUMBER

CUSIP NUMBER

NOTIFICATION OF LATE FILING

(Check one): ¨ Form 10-K ¨ Form 20-F ¨ Form 11-K x Form 10-Q ¨ Form 10-D ¨ Form N-CEN ¨ Form N-CSR
For Period Ended September 30, 2025
¨ Transition Report on Form 10-K
¨ Transition Report on Form 20-F
¨ Transition Report on Form 11-K
¨ Transition Report on Form 10-Q
For the Transition Period Ended ____________

Nothing in this form shall be construed to imply that the Commission has verified any information contained herein.

If the notification relates to a portion of the filing checked above, identify the Item(s) to which the notification relates:

PART I - REGISTRANT INFORMATION
ENTERO THERAPEUTICS, INC.
Full Name of Registrant
N/A
Former Name if Applicable
79014th St N # 21135
Address of Principal Executive Office (Street and Number)
St. Petersburg, Florida, 33702
City, State and Zip Code

PART II - RULES 12b-25(b) AND (c)

If the subject report could not be filed without unreasonable effort or expense and the registrant seeks relief pursuant to Rule 12b-25(b), the following should be completed. (Check box if appropriate).

x (a) The reasons described in reasonable detail in Part III of this form could not be eliminated without unreasonable effort or expense;
(b) The subject annual report, semi-annual report, transition report on Form 10-K, Form 20-F, 11-K Form N-CEN or Form N-CSR, or portion thereof, will be filed on or before the fifteenth calendar day following the prescribed due date; or the subject quarterly report of transition report on Form 10- Q or subject distribution report on Form 10-D, or portion thereof will be filed on or before the fifth calendar day following the prescribed due date; and
(c) The accountant's statement or other exhibit required by Rule 12b-25(c) has been attached if applicable.

PART III - NARRATIVE

State below in reasonable detail why Forms 10-K, 20-F, 11-K, 10-Q, 10-D, N-CEN, N-CSR, or the transition report or portion thereof, could not be filed within the prescribed time period.

We are currently reviewing the accounting treatment of our acquisition of GridAI Corp. Due to the complexity of this matter, we require additional time to ensure that the financial statements are accurately presented in accordance with the relevant accounting standards. As such, we are requesting an extension for filing of our 10-Q Quarterly Report for the quarter ended September 30, 2025. In accordance with Rule 12b-25 of the Securities Exchange Act of 1934, it is anticipated that the Registrant will file its Form 10-Q no later than the fifth calendar day following the prescribed due date .

PART IV - OTHER INFORMATION

(1) Name and telephone number of person to contact in regard to this notification
Anna Skowron 416 312-0442
(Name) (Area Code) (Telephone Number)
(2) Have all other periodic reports required under Section 13 or 15(d) of the Securities Exchange Act of 1934 or Section 30 of the Investment Company Act of 1940 during the preceding 12 months or for such shorter period that the registrant was required to file such report(s) been filed? If answer is no, identify report(s). ☒ Yes ¨ No
(3) Is it anticipated that any significant change in results of operations from the corresponding period for the last fiscal year will be reflected by the earnings statements to be included in the subject report or portion thereof? ¨ Yes ☒ No
If so, attach an explanation of the anticipated change, both narratively and quantitatively, and, if appropriate, state the reasons why a reasonable estimate of the results cannot be made
2

ENTERO THERAPEUTICS, INC.

(Name of Registrant as Specified in Charter)

has caused this notification to be signed on its behalf by the undersigned hereunto duly authorized.

Date: November 17, 2025 By: /s/ Anna Skowron
Anna Skowron
Interim Chief Financial Officer
3
Entero Therapeutics Inc. published this content on November 17, 2025, and is solely responsible for the information contained herein. Distributed via Edgar on November 17, 2025 at 21:01 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]