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EXHIBITS 
−Removed: 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 Company's Form 8-K filed January 29, 2021)
+Added: At Market Issuance Sales Agreement, dated June 25, 2021, by and among the Company and Oppenheimer & Co.
+Added: Inc. (incorporated by reference to exhibit 1.1 of the Company's Form 8-K filed June 25, 2021)
+Added: Purchase Agreement dated June 25, 2021 by and between Moleculin Biotech, Inc.
+Added: and Lincoln Park Capital Fund, LLC (incorporated by reference to exhibit 10.1 of the Company's Form 8-K filed June 25, 2021)
+Added: Registration Rights Agreement dated June 25, 2021 by and between Moleculin Biotech, Inc.
+Added: and Lincoln Park Capital Fund, LLC (incorporated by reference to exhibit 10.2 of the Company's Form 8-K filed June 25, 2021)
+Added: Amendment No.
+Added: 4 to Patent and Technology License Agreement, dated June 15, 2021, between the Parties dated April 2, 2012, as previously amended by Amendment No.
+Added: 1 dated October 19, 2015 and Amendment No.
+Added: 2 dated November 1, 2018, and Amendment No.
+Added: 3 dated May 20, 2020
+Added: Form of Indemnification Agreement between Moleculin Biotech, Inc.
+Added: and its officers and directors
Certification of Principal Executive Officer Pursuant to Section 302 of Sarbanes-Oxley Act of 2002
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* Filed herewith.
+Added: +   
+Added: Pursuant to Item 601(b)(10)(iv) of Regulation S-K promulgated by the SEC, certain portions of this exhibit have been redacted.
+Added: The Company hereby agrees to furnish supplementally to the SEC, upon its request, an unredacted copy of this exhibit.
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
MOLECULIN BIOTECH, INC.
+Added: August 11, 2021
/s/ Walter V.
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(Principal Executive Officer)
+Added: August 11, 2021
/s/ Jonathan P.
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Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.