# EDGAR Filing Document

**Accession Number:** 0001062822
**File Stem:** 0001193125-26-029894
**Filing Date:** 2026-1
**Character Count:** 8622
**Document Hash:** 6b06f6e479aea56eba5ced64e9a5aacb
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-029894.hdr.sgml**: 20260130

**ACCESSION NUMBER**: 0001193125-26-029894

**CONFORMED SUBMISSION TYPE**: FWP

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20260130

**DATE AS OF CHANGE**: 20260129

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** LEXICON PHARMACEUTICALS, INC.
- **CENTRAL INDEX KEY:** 0001062822
- **STANDARD INDUSTRIAL CLASSIFICATION:** PHARMACEUTICAL PREPARATIONS [2834]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 760474169
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** FWP
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 333-281208
- **FILM NUMBER:** 26580012

**BUSINESS ADDRESS:**
- **STREET 1:** 2445 TECHNOLOGY FOREST BLVD.
- **STREET 2:** SUITE 1100
- **CITY:** THE WOODLANDS
- **STATE:** TX
- **ZIP:** 77381
- **BUSINESS PHONE:** 2818633000

**MAIL ADDRESS:**
- **STREET 1:** 2445 TECHNOLOGY FOREST BLVD.
- **STREET 2:** SUITE 1100
- **CITY:** THE WOODLANDS
- **STATE:** TX
- **ZIP:** 77381

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** LEXICON PHARMACEUTICALS, INC./DE
- **DATE OF NAME CHANGE:** 20070426

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** LEXICON GENETICS INC/TX
- **DATE OF NAME CHANGE:** 20000126
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** LEXICON PHARMACEUTICALS, INC.
- **CENTRAL INDEX KEY:** 0001062822
- **STANDARD INDUSTRIAL CLASSIFICATION:** PHARMACEUTICAL PREPARATIONS [2834]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 760474169
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** FWP

**BUSINESS ADDRESS:**
- **STREET 1:** 2445 TECHNOLOGY FOREST BLVD.
- **STREET 2:** SUITE 1100
- **CITY:** THE WOODLANDS
- **STATE:** TX
- **ZIP:** 77381
- **BUSINESS PHONE:** 2818633000

**MAIL ADDRESS:**
- **STREET 1:** 2445 TECHNOLOGY FOREST BLVD.
- **STREET 2:** SUITE 1100
- **CITY:** THE WOODLANDS
- **STATE:** TX
- **ZIP:** 77381

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** LEXICON PHARMACEUTICALS, INC./DE
- **DATE OF NAME CHANGE:** 20070426

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** LEXICON GENETICS INC/TX
- **DATE OF NAME CHANGE:** 20000126

Filed Pursuant to Rule 433 Issuer Free Writing Prospectus dated January 29, 2026 Relating to Preliminary Prospectus Supplement dated January 29, 2026 Registration Statement No. 333-281208

![LOGO](g82293g0130053536000.jpg)

*NEWS RELEASE* 

**FOR IMMEDIATE RELEASE** 

**LEXICON ANNOUNCES PROPOSED PUBLIC OFFERING OF COMMON STOCK** 

**The Woodlands, Texas, January 29, 2026** – Lexicon Pharmaceuticals, Inc. (Nasdaq: LXRX) ("***Lexicon***") today announced that it has commenced an underwritten public offering to offer and sell, subject to market and other conditions, shares of its common stock, par value $0.001. In addition, Lexicon intends to grant the underwriters a 30-day option to purchase additional shares of common stock. There can be no assurance as to whether or when the proposed offering may be completed, or as to the actual size or terms of the proposed offering.

Jefferies and Piper Sandler are acting as joint book-running managers for the proposed offering.

Concurrently with the closing of the underwritten public offering, Lexicon intends to sell shares of its common stock in a private placement to an affiliate of Invus, L.P., Lexicon's largest stockholder, pursuant to its preemptive right under Lexicon's Sixth Amended and Restated Certificate of Incorporation. Lexicon intends to grant the private placement purchaser an option to purchase, on a pro rata basis, additional shares of common stock to the extent the underwriters exercise their option to purchase additional common stock. Any shares of common stock offered pursuant to the concurrent private placement would not be registered under the Securities Act of 1933, as amended (the "***Securities Act***"). The closing of the underwritten public offering is not conditioned on the closing of the concurrent private placement.

Lexicon currently intends to use the net proceeds that it will receive from the proposed offering (i) to fund the continued research and development of its drug candidates and (ii) for working capital and other general corporate purposes.

A shelf registration statement on Form S-3 relating to the proposed offering was filed with the U.S. Securities and Exchange Commission ("***SEC***") on August 2, 2024 and declared effective by the SEC on August 15, 2024 (File No. 333-281208). A preliminary prospectus supplement and accompanying prospectus relating to the proposed offering will be filed with the SEC and will be available on the SEC's website at www.sec.gov. When available, copies of the preliminary prospectus supplement and accompanying prospectus may also be obtained from Jefferies LLC, Attention: Equity Syndicate Prospectus Department, 520 Madison Avenue, New York, NY 10022, by e-mail at prospectus_department@jefferies.com or by telephone at (877) 821-7388; or Piper Sandler & Co., Attention: Prospectus Department, 350 North 5<sup>th</sup> Street, Suite 1000, Minneapolis, MN 55401, by telephone at (800) 747-3924, or via email at prospectus@psc.com.

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This press release does not constitute an offer to sell, or the solicitation of an offer to buy, these securities, nor will there be any sale of these securities in any state or jurisdiction in which such offer, solicitation or sale is not permitted.

**About Lexicon Pharmaceuticals** 

Lexicon is a biopharmaceutical company with a mission of pioneering medicines that transform patients' lives. Lexicon has a pipeline of drug candidates in discovery and clinical and preclinical development in neuropathic pain, hypertrophic cardiomyopathy (HCM), obesity, metabolism and other indications.

**Safe Harbor Statement** 

*This press release contains "forward-looking statements" within the meaning of Section 27A of the Securities Act and Section 21E of the Securities Exchange Act of 1934, as amended. All forward-looking statements, including, without limitation, statements about the completion and timing of the proposed offering, the use of proceeds from the proposed offering and the grant of the option to the underwriters and the private placement purchaser to purchase additional shares, are based on management's current assumptions and expectations and involve risks, uncertainties and other important factors, specifically including Lexicon's ability to meet its capital requirements, obtain patent protection for its discoveries and establish strategic alliances, as well as additional factors relating to manufacturing, intellectual property rights, and the therapeutic or commercial value of its drug candidates. Any of these risks, uncertainties and other factors may cause Lexicon's actual results to be materially different from any future results expressed or implied by such forward-looking statements. Information identifying such important factors is contained under "Risk Factors" in Lexicon's Annual Report on Form 10-K for the year ended December 31, 2024, and our subsequently filed Quarterly Reports on Form 10-Q for the quarter ended March 31, 2025, the quarter ended June 30, 2025 and the quarter ended September 30, 2025 and other subsequent disclosure documents filed with the SEC. Lexicon undertakes no obligation to update or revise any such forward-looking statements, whether as a result of new information, future events or otherwise.* 

**For Investor and Media Inquiries**:

Lisa DeFrancesco

Lexicon Pharmaceuticals, Inc.

lexinvest@lexpharma.com

**Registration Statement** 

Lexicon has filed a registration statement (including a prospectus) with the SEC for the equity offering to which this communication relates. Before you invest, you should read the preliminary prospectus supplement and the accompanying prospectus in that registration statement and other documents Lexicon has filed with the SEC for more complete information about Lexicon and the equity offering. You may get these documents for free by visiting EDGAR on the SEC's website at www.sec.gov. When available, copies of the preliminary prospectus supplement and accompanying prospectus may also be obtained from Jefferies LLC, Attention: Equity Syndicate

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Prospectus Department, 520 Madison Avenue, New York, NY 10022, by e-mail at prospectus_department@jefferies.com or by telephone at (877) 821-7388; or Piper Sandler & Co., Attention: Prospectus Department, 350 North 5<sup>th</sup> Street, Suite 1000, Minneapolis, MN 55401, by telephone at (800) 747-3924, or via email at prospectus@psc.com.