Mitesco, Inc. (NASDAQ: MITI) notifies late Q1 2026 10-Q filing

Rhea-AI Filing Summary

Mitesco, Inc. notified the SEC that it could not timely file its Quarterly Report on Form 10-Q for the period ended March 31, 2026 because the company has not finalized the unaudited financial statements for that period. The company expects to file the Form 10-Q on or before the fifth calendar day following the prescribed due date.

Insights

Financial Compliance Analyst

Regulatory notice of a late 10-Q; remedial filing planned within five days.

The filing cites Rule 12b-25 relief and states the company has not finalized unaudited financial statements for the quarter ended March 31, 2026. It commits to filing the Form 10-Q on or before the fifth calendar day following the prescribed due date.

Timing is the key dependency; subsequent filings will confirm whether the report and any required exhibits are completed. Cash‑flow or operational impacts are not disclosed in this notice.

Key Figures

Quarter end: March 31, 2026 Anticipated filing window: On or before the fifth calendar day following the prescribed due date Notification date: May 15, 2026 +1 more

4 metrics

Quarter end March 31, 2026 Period covered by the late Form 10-Q

Anticipated filing window On or before the fifth calendar day following the prescribed due date Commitment under Rule 12b-25 for Form 10-Q

Notification date May 15, 2026 Signature date on Form 12b-25

Phone 610-888-7509 Phone number provided on the Form 12b-25

Key Terms

Rule 12b-25, Form 10-Q, prescribed due date

3 terms

Rule 12b-25 regulatory

"The reason described in reasonable detail in Part III of this form could not be eliminated"

Rule 12b-25 is an SEC filing provision that lets a company notify regulators and the public that it cannot file a required periodic report (like a quarterly or annual report) on time and explains the reason for the delay. For investors, the notice is a formal heads-up that financial information will arrive late—similar to a company calling to say it will be late turning in homework—so it signals increased uncertainty and may affect trading and risk assessments until the filing is available.

Form 10-Q regulatory

"unable to file its Quarterly Report on Form 10-Q for the three months ended March 31, 2026"

A Form 10-Q is a detailed report that publicly traded companies are required to file with regulators three times a year, providing an update on their financial health and business activities. It is important for investors because it offers timely insights into a company's performance, helping them make informed decisions about buying or selling stocks. Think of it as a regular check-up report that shows how well a company is doing.

prescribed due date regulatory

"will be filed on or before the fifth calendar day following the prescribed due date"

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C.  20549

FORM 12b-25

NOTIFICATION OF LATE FILING

(Check one):      ☐ Form 10-K   ☐ Form 20-F   ☐ Form 11-K   ☒ Form 10-Q   ☐ Form 10-D   ☐ Form N-CEN    ☐ Form N-CSR

For Period Ended: March 31, 2026

☐ 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 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

Mitesco, Inc.

Full Name of Registrant

Former Name if Applicable

505 Beachland Blvd., Suite 1377

Address of Principal Executive Office (Street and Number)

Vero Beach, Florida 32963

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)

	(a)	The reason 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 Form10-K, Form 20-F, Form 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 or 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.

Mitesco, Inc. has determined that it is unable to file its Quarterly Report on Form 10-Q for the three months ended March 31, 2026 within the prescribed time period. The Company has not finalized its unaudited financial statements for the three months ended March 31, 2026. The Company anticipates filing its Form 10-Q on or before 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

Brian Valania		610		888-7509
(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.

1

MITESCO, 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: May 15, 2026	By:	/s/ Brian Valania
		Brian Valania
		Chief Executive Officer

2

FAQ

What did Mitesco (MITI) file with the SEC?

Mitesco filed a Form 12b-25 notification indicating it could not timely file its Form 10-Q for the period ended March 31, 2026. The notice explains the unaudited financial statements are not finalized.

When does Mitesco expect to file its late 10-Q?

Mitesco expects to file the Form 10-Q on or before the fifth calendar day following the prescribed due date, per the Rule 12b-25 statement included in the notification.

Does the 12b-25 notice state any change in results for Q1 2026?

No. The notice does not state that significant changes in results of operations will be reflected in the report. It only cites incomplete unaudited financial statements as the reason for delay.

Who signed the 12b-25 notice for Mitesco and when?

The notice was signed by Brian Valania, Chief Executive Officer, and dated May 15, 2026, as shown on the Form 12b-25 signature block.

Has Mitesco filed other periodic reports in the last 12 months?

The notification includes the required checkbox about prior filings but does not identify any missing prior reports; the form shows the registrant answered the standard questions without listing prior omissions.