Moleculin Biotech, Inc.
For the period ended Dec 31, 2025. Filed Mar 18, 2026.
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FY2025 · Filed Mar 18, 2026
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Item 15. Exhibits and Financial Statement Schedules
ITEM 15. EXHIBITS AND FINANCIAL STATEMENTS
| a. | Documents filed as part of this Report |
|---|
| 1. | Financial Statements |
The financial statements and notes thereto which are attached hereto have been included by reference into Item 8 of this part of the annual report on Form 10-K. See the Index to Financial Statements on page below.
| 2. | Financial Statement Schedules |
All schedules are omitted because they are inapplicable or not required or the required information is shown in the financial statements or notes thereto.
| 3. | Exhibits |
EXHIBIT INDEX
| Exhibit Number | Description |
| 3.1 | Amended and Restated Certificate of Incorporation of Moleculin Biotech, Inc. (incorporated by reference to exhibit 3.1 of the Form S-1/A filed March 21, 2016) |
| 3.2 | Certificate of Amendment of the Amended and Restated Certificate of Incorporation of Moleculin Biotech, Inc. (incorporated by reference to Exhibit 3.1 of the Form 8-K filed May 24, 2019) |
| 3.3 | Certificate of Amendment of the Amended and Restated Certificate of Incorporation of Moleculin Biotech, Inc. (incorporated by reference to Exhibit 3.1 of the Form 8-K filed January 29, 2021) |
| 3.4 | Certificate of Amendment of the Amended and Restated Certificate of Incorporation of Moleculin Biotech, Inc. (incorporated by reference to Exhibit 3.1 of the Form 8-K filed March 19, 2024) |
| 3.5 | Amendment to Amended and Restated Certificate of Incorporation of Moleculin Biotech, Inc., dated August 21, 2025 (incorporated by reference to Exhibit 3.1 of the Form 8-K filed August 27, 2025) |
| 3.6 | Certificate of Amendment to the Amended and Restated Certificate of Incorporation of Moleculin Biotech, Inc., filed with the Secretary of State of the State of Delaware. (incorporated by reference to Exhibit 3.1 of the Form 8-K filed November 28, 2025) |
| 3.7 | Amended and Restated Bylaws of Moleculin Biotech., Inc. (incorporated by reference to exhibit 3.1 of the Form 8-K filed December 17, 2021) |
| 4.1 | Description of Registrant's Securities |
| 4.2 | Form of Common Warrant Agreement issued in December 2023 offering (incorporated by reference to Exhibit 4.2 of the Form 8-K filed December 21, 2023) |
| 4.3 | Form of Placement Agent Warrant issued in August 2024 offering (incorporated by reference to Exhibit 4.12 of the Form S-1/A filed August 15, 2024) |
| 4.4 | Form of Amended and Restated Series E Warrant (incorporated by reference to Exhibit 4.1 of the Form 8-K filed December 22, 2025) |
| 4.5 | Form of Amended and Restated Series F Warrant (incorporated by reference to Exhibit 4.2 of the Form 8-K filed December 22, 2025) |
| 4.6 | Form of Amended and Restated Series G Warrant (incorporated by reference to Exhibit 4.3 of the Form 8-K filed December 22, 2025) |
| 4.7 | Form of Series H Warrant (incorporated by reference to Exhibit 4.1 of the Form 8-K filed February 20, 2026) |
| 10.1 ** | Moleculin Biotech, Inc. Amended and Restated 2015 Stock Plan, as amended (incorporated by reference to Exhibit 4.5 of the Form S-8 file number 333-272814) |
| 10.2 | Rights Transfer Agreement between Moleculin Biotech, Inc. and AnnaMed, Inc. (incorporated by reference to exhibit 10.2 of the Form S-1/A filed March 21, 2016) |
| 10.3 | Patent and Technology License Agreement dated June 21, 2010 by and between The Board of Regents of the University of Texas System and Moleculin, LLC (incorporated by reference to exhibit 10.3 of the Form S-1/A filed March 21, 2016) |
| 10.4 | Amendment No. 1 to the Patent and Technology License Agreement dated June 21, 2010 by and between The Board of Regents of the University of Texas System and Moleculin, LLC (incorporated by reference to exhibit 10.4 of the Form S-1/A filed March 21, 2016) |
| 10.5 | Patent and Technology License Agreement dated April 2, 2012 by and between The Board of Regents of the University of Texas System and IntertechBio Corporation (incorporated by reference to exhibit 10.5 of the Form S-1/A filed March 21, 2016) |
| 10.6 | Amendment No. 1 to the Patent and Technology License Agreement dated April 2, 2012 by and between The Board of Regents of the University of Texas System and IntertechBio Corporation (incorporated by reference to exhibit 10.6 of the Form S-1/A filed March 21, 2016) |
| 10.7 | Rights Transfer Agreement between Moleculin Biotech, Inc. and IntertechBio Corporation dated August 11, 2015 (incorporated by reference to exhibit 10.10 of the Form S-1/A filed March 21, 2016) |
| 10.8 | Agreement and Plan of Merger between Moleculin Biotech, Inc. and Moleculin, LLC (incorporated by reference to exhibit 10.11 of the Form S-1/A filed March 21, 2016) |
| 10.9 | Technology Rights and Development License Agreement to be entered into by Moleculin Biotech, Inc. and Houston Pharmaceuticals, Inc. (incorporated by reference to exhibit 10.13 of the Form S-1/A filed April 15, 2016) |
| 10.10 | Lease Agreement for 5300 Memorial (incorporated by reference to Exhibit 10.1 of the Form 10-Q filed May 14, 2018) |
| 10.11 † | Patent And Technology License Agreement dated February 12, 2018 by and between The Board of Regents of The University Of Texas System on behalf of The University Of Texas M. D. Anderson Cancer Center and Moleculin Biotech, Inc. (incorporated by reference to Exhibit 10.2 of the Form 10-Q filed May 14, 2018) |
| 10.12 | Sublicense Agreement dated as of February 19, 2019 entered into between the Company and Animal Life Sciences, LLC (incorporated by reference to Exhibit 10.22 of the Form 10-K filed February 21, 2019) |
| 10.13 | Consulting Agreement, dated March 16, 2020, entered into between the Company and Houston Pharmaceuticals, Inc. (HPI) (incorporated by reference to Exhibit 10.24 of the Form 10-K filed March 19, 2020) |
| 10.14 | Equipment Lab Letter, dated March 16, 2020, entered into between the Company and Houston Pharmaceuticals, Inc. (HPI) (incorporated by reference to Exhibit 10.25 of the Form 10-K filed March 19, 2020) |
| 10.15 | Scientific Advisory Board Agreement, dated February 28, 2020, entered into between the Company and Waldemar Priebe, PhD (incorporated by reference to Exhibit 10.26 of the Form 10-K filed March 19, 2020) |
| 10.16 + | Amendment No. 3 to Patent and Technology License Agreement between the Parties dated April 2, 2012, dated May 20, 2020, entered into between the Company and the Board of Regents of The University of Texas System, on behalf of The University of Texas M.D. Anderson Cancer Center (incorporated by reference to Exhibit 10.1 of the Form 10-Q filed August 12, 2020) |
| 10.17 + | Amendment No. 4 to Patent and Technology License Agreement between the Parties dated April 2, 2012, dated June 15, 2021, entered into between the Company and the Board of Regents of The University of Texas System, on behalf of The University of Texas M.D. Anderson Cancer Center (incorporated by reference to Exhibit 10.4 of the Form 10-Q filed August 12, 2021) |
| 10.18 + | Patent And Technology License Agreement dated June 29, 2017 by and between The Board of Regents of The University Of Texas System on behalf of The University Of Texas M. D. Anderson Cancer Center and Moleculin Biotech, Inc. (incorporated by reference to Exhibit 10.30 of the Form 10-K filed March 24, 2022) |
| 10.19 + | Amendment No. 1 to the Patent And Technology License Agreement dated June 29, 2017 by and between The Board of Regents of The University Of Texas System on behalf of The University Of Texas M. D. Anderson Cancer Center and Moleculin Biotech, Inc. (incorporated by reference to Exhibit 10.31 of the Form 10-K filed March 24, 2022) |
| 10.20 + | Patent And Technology License Agreement dated December 2, 2021 by and between The Board of Regents of The University Of Texas System on behalf of The University Of Texas M. D. Anderson Cancer Center and Moleculin Biotech, Inc. (incorporated by reference to Exhibit 10.32 of the Form 10-K filed March 24, 2022) |
| 10.21 + | Patent And Technology License Agreement dated December 3, 2021 by and between The Board of Regents of The University Of Texas System on behalf of The University Of Texas M. D. Anderson Cancer Center and Moleculin Biotech, Inc. (incorporated by reference to Exhibit 10.33 of the Form 10-K filed March 24, 2022) |
| 10.22 + | Patent And Technology License Agreement dated February 3, 2022 by and between The Board of Regents of The University Of Texas System on behalf of The University Of Texas M. D. Anderson Cancer Center and Moleculin Biotech, Inc. (incorporated by reference to Exhibit 10.34 of the Form 10-K filed March 24, 2022) |
| 10.23 + | Patent and Technology License Agreement dated October 21, 2022 by and between The Board of The University Of Texas System on behalf of The University Of Texas M.D. Anderson Cancer Center and Moleculin Biotech, Inc. (incorporated by reference to Exhibit 10.27 of the Form 10-K filed March 22, 2023) |
| 10.24 | First Amendment to Commercial Lease Agreement (incorporated by reference to Exhibit 10.1 of the Form 10-Q filed November 13, 2023) |
| 10.25 | Amended and Restated Employment Agreement between Moleculin Biotech, Inc. and Walter V. Klemp dated January 4, 2024 (incorporated by reference to Exhibit 10.1 of the Form 8-K filed January 5, 2024) |
| 10.26 | Amended and Restated Employment Agreement between Moleculin Biotech, Inc. and Jonathan P. Foster dated January 4, 2024 (incorporated by reference to Exhibit 10.2 of the Form 8-K filed January 5, 2024) |
| 10.27 | Employment Agreement between Moleculin Biotech, Inc. and Donald Picker dated January 4, 2024 (incorporated by reference to Exhibit 10.3 of the Form 8-K filed January 5, 2024) |
| 10.28 + | Moleculin Biotech, Inc. 2024 Stock Plan (incorporated by reference to Exhibit 10.1 of the Form 8-K filed October 25, 2024) |
| 10.29 + | Forms of award agreements under Moleculin Biotech, Inc. 2024 Stock Plan (incorporated by reference to Exhibit 99.2 of the Form S-8 filed September 10, 2025) |
| 10.30 | At The Market Offering Agreement, dated July 11, 2025, by and between Moleculin Biotech, Inc. and Roth Capital Partners, LLC (incorporated by reference to Exhibit 1.1 of the Form 8-K filed July 11, 2025) |
| 10.31 | Form of Inducement Letter for holder of Series C warrants and Series D warrants (incorporated by reference to Exhibit 10.1 of the Form 8-K filed December 10, 2025) |
| 10.32 | Form of Inducement Letter for holders of certain Series F warrants (incorporated by reference to Exhibit 10.2 of the Form 8-K filed December 10, 2025) |
| 10.33 | Form of Warrant Amendment dated December 21, 2025 (incorporated by reference to Exhibit 10.1 of the Form 8-K filed December 22, 2025) |
| 10.34 | Form of Inducement Letter dated February 19, 2026 (incorporated by reference to Exhibit 10.1 of the Form 8-K filed February 20, 2026) |
| 19 | Moleculin Biotech, Inc. Insider Trading Policy (incorporated by reference to Exhibit 19 of the Form 10-K filed March 21, 2025) |
| 21 | Subsidiaries of the Registrant (incorporated by reference to Exhibit 21 of the Form 10-K filed March 22, 2023) |
| 23.1* | Consent of Grant Thornton, LLP |
| 31.1* | Certification of Principal Executive Officer Pursuant to Section 302 of Sarbanes- Oxley Act of 2002 |
| 31.2* | Certification of Principal Financial Officer Pursuant to Section 302 of Sarbanes-Oxley Act of 2002 |
| 32.1* | Certification of Principal Executive Officer Pursuant to Section 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 |
| 32.2* | Certification of Principal Financial Officer Pursuant to Section 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 |
| 97 | Moleculin Biotech, Inc. Restatement Recoupment Policy (incorporated by reference to Exhibit 97 of the Form 10-K filed March 22, 2024) |
| 101.INS * | Inline XBRL Instance Document |
| 101.SCH * | Inline XBRL Taxonomy Extension Schema Document |
| 101.CAL * | Inline XBRL Taxonomy Extension Calculation Linkbase Document |
| 101.DEF * | Inline XBRL Taxonomy Extension Definition Linkbase Document |
| 101.LAB * | Inline XBRL Taxonomy Extension Label Linkbase Document |
| 101.PRE * | Inline XBRL Taxonomy Extension Presentation Linkbase Document |
| 104 | Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101) |
| * | Filed herewith. |
|---|---|
| ** | Denotes a management contract or compensatory plan or arrangement. |
| † | Confidential treatment has been granted as to certain portions of this exhibit pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. |
| + | Pursuant to Item 601(b)(10)(iv) of Regulation S-K promulgated by the SEC, certain portions of this exhibit have been redacted. The Company hereby agrees to furnish supplementally to the SEC, upon its request, an unredacted copy of this exhibit. |
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