# EDGAR Filing Document

**Accession Number:** 0001056358
**File Stem:** 0001437749-26-011099
**Filing Date:** 2026-4
**Character Count:** 7626
**Document Hash:** bd4b3a53a0d51841c3f6331171cd3484
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001437749-26-011099.hdr.sgml**: 20260402

**ACCESSION NUMBER**: 0001437749-26-011099

**CONFORMED SUBMISSION TYPE**: NT 10-K/A

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20251231

**FILED AS OF DATE**: 20260402

**DATE AS OF CHANGE**: 20260402

**EFFECTIVENESS DATE**: 20260402

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MANNATECH INC
- **CENTRAL INDEX KEY:** 0001056358
- **STANDARD INDUSTRIAL CLASSIFICATION:** MEDICINAL CHEMICALS & BOTANICAL PRODUCTS [2833]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 752508900
- **STATE OF INCORPORATION:** TX
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** NT 10-K/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-24657
- **FILM NUMBER:** 26832994

**BUSINESS ADDRESS:**
- **STREET 1:** 1410 LAKESIDE PARKWAY
- **STREET 2:** SUITE 200
- **CITY:** FLOWER MOUND
- **STATE:** TX
- **ZIP:** 75028
- **BUSINESS PHONE:** 9724717400

**MAIL ADDRESS:**
- **STREET 1:** 1410 LAKESIDE PARKWAY
- **STREET 2:** SUITE 200
- **CITY:** FLOWER MOUND
- **STATE:** TX
- **ZIP:** 75028

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**FORM 12b-25/A**

**(Amendment No.1)**

**NOTIFICATION OF LATE FILING**

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| | |
|:---|:---|
| *(Check One)*  | ☒ Form 10-K ☐ Form 20-F ☐ Form 11-K ☐ Form 10-Q<br> ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR |
|  | For Period Ended: 12/31/2025 |
|  | ☐ Transition Report on Form 10-K |
|  | ☐ Transition Report on Form 20-F |
|  | ☐ Transition Report on Form 11-K |
|  | ☐ Transition Report on Form 10-Q |
|  | ☐ Transition Report on Form N-SAR |
|  | For the Transition Period Ended:<u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u> |

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&nbsp;&nbsp; *Read Instruction (on back page) Before Preparing Form. Please Print or Type.*<br> **Nothing in this form shall be construed to imply that the Commission has verified any information contained herein.**<br>

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**

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| |
|:---|
| **Mannatech, Incorporated** |
| Full Name of Registrant |
| **N/A** |
| Former Name if Applicable |
| **1410 Lakeside Pkwy, STE. 200** |
| Address of Principal Executive Office (Street and Number)  |
| **Flower Mound, TX 75028** |
| City, State and Zip Code |

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**Explanatory Note**<br> This Amendment No. 1 to Form 12b-25 amends the Form 12b-25 originally filed by Mannatech, Incorporated on April 1, 2026 (the "Original Form 12b-25"). This amendment updates and supplements the disclosure in Part III of the Original Form 12b-25. Except as described herein, the Original Form 12b-25 is restated in its entirety.

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**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 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, Form 11-K, Form N-SAR 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.

The Company is unable to file its Annual Report on Form 10-K for the year ended December 31, 2025, within the prescribed time period without unreasonable effort or expense because it requires additional time to complete its review of the income tax provision. The Company is assessing the preliminary conclusions reached in the computation of the amount of deferred taxes to be recorded on unremitted foreign earnings.

The Company experienced a decline in net sales, incurred operating losses and negative cash flows from operating activities during the year ended December 31, 2025, which caused liquidity constraints. These events lead to a conclusion that substantial doubt exists about the Company's ability to continue as a going concern.

The Company expects to file the Form 10-K on or before the fifteenth calendar day following its prescribed due date as permitted under Rule 12b-25.

(Attach extra Sheets if Needed)

**PART IV** — **OTHER INFORMATION**

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

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| | | |
|:---|:---|:---|
| **Yasir Haider** | **(469)** | **313-2749** |
| **(Name)** | **(Area Code)** | **(Telephone Number)** |

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(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.

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| |
|:---|
| **Mannatech, Incorporated** |
| (Name of Registrant as Specified in Charter) |

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

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| | | | |
|:---|:---|:---|:---|
| Date  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**April 2, 2026** | By  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **/s/ Landen Fredrick**  |
|  |  |  | **Landen Fredrick** |
|  |  |  | **Chief Executive Officer** |

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INSTRUCTION: The form may be signed by an executive officer of the registrant or by any other duly authorized representative. The name and title of the person signing the form shall be typed or printed beneath the signature. If the statement is signed on behalf of the registrant by an authorized representative (other than an executive officer), evidence of the representative's authority to sign on behalf of the registrant shall be filed with the form.

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| | |
|:---|:---|
|  | **ATTENTION**  |
| &nbsp;&nbsp; **Intentional misstatements or omissions of fact constitute Federal Criminal Violations (See 18 U.S.C. 1001).** | &nbsp;&nbsp; **Intentional misstatements or omissions of fact constitute Federal Criminal Violations (See 18 U.S.C. 1001).** |

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