SEC Form NT 10-K filed by ConnectM Technology Solutions Inc.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 12b-25

Commission File Number 001-41389

CUSIP Number 207944 208

NOTIFICATION OF LATE FILING

(Check One):

For Period Ended: December 31, 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: _____________

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

ConnectM Technology Solutions, Inc.

Full Name of Registrant

Former Name if Applicable

2 Mount Royal Avenue, Suite 550

Address of Principal Executive Office (Street and Number)

Marlborough, Massachusetts 01752

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.)

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.

ConnectM Technology Solutions, Inc. (the “Company”) has determined that it will not be able to file its Annual Report on Form 10-K for its fiscal year ended December 31, 2025 (the “Form 10-K”) by March 31, 2026, the original due date for such filing, without unreasonable effort or expense, due to delays in reporting matters included in the Form 10-K resulting primarily from additional time required for the Company to complete the documentation in the financial statement close process. The Company expects to file the Form 10-K within the extension period of 15 calendar days, as provided under Rule 12b-25 under the Securities Exchange Act of 1934.

PART IV

OTHER INFORMATION

(1) Name and telephone number of person to contact in regard to this notification:

(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).

x 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 x 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.

ConnectM Technology Solutions, Inc.

(Name of Registrant as Specified in Charter)

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