# EDGAR Filing Document

**Accession Number:** 0001056358
**File Stem:** 0001437749-26-012910
**Filing Date:** 2026-4
**Character Count:** 2068
**Document Hash:** d3cf725ac35fc4264e1f3efd7c909c0a
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001437749-26-012910.hdr.sgml**: 20260421

**ACCESSION NUMBER**: 0001437749-26-012910

**CONFORMED SUBMISSION TYPE**: DEFA14A

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20260421

**DATE AS OF CHANGE**: 20260421

**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:** DEFA14A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-24657
- **FILM NUMBER:** 26878171

**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**

**SCHEDULE 14A**

**Proxy Statement Pursuant to Section 14(a) of the**

**Securities Exchange Act of 1934**

**(Amendment No.)**

Filed by the Registrant ☒

Filed by a Party other than the Registrant ☐

Check the appropriate box:

☐ Preliminary Proxy Statement

☐ **Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))**

☐ Definitive Proxy Statement

☒ Definitive Additional Materials

☐ Soliciting Material Pursuant to §240.14a-12

## Mannatech, Incorporated
**(Name of Registrant as Specified In Its Charter)**

**(Name of Person(s) Filing Proxy Statement, if other than the Registrant)**

Payment of Filing Fee (Check the appropriate box):

&nbsp;&nbsp;&nbsp;&nbsp;☒ No fee required.

☐ Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11.

☐ Fee paid previously with preliminary materials.

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