FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
KLEMP WALTER V
  2. Issuer Name and Ticker or Trading Symbol
Moleculin Biotech, Inc. [MBRX]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director __X__ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Chief Executive Officer
(Last)
(First)
(Middle)
C/O MOLECULIN BIOTECH, INC., 2575 WEST BELLFORT, SUITE 333
3. Date of Earliest Transaction (Month/Day/Year)
08/16/2017
(Street)

HOUSTON, TX 77054
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 08/16/2017   S(1)   100,000 D $ 1.703 967,724 (2) D  

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
KLEMP WALTER V
C/O MOLECULIN BIOTECH, INC.
2575 WEST BELLFORT, SUITE 333
HOUSTON, TX 77054
  X   X   Chief Executive Officer  

Signatures

 /s/ Walter Klemp   08/18/2017
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) The reporting person entered into a private sale agreement for the shares of common stock set forth in the table. The 12,000 shares of common stock purchased by the reporting person on May 11, 2017 are a matching transaction under Section 16 of the Securities Exchange Act of 1934 with 12,000 shares of common stock sold by the reporting person as set forth in the table above. In Accordance with Section 16, the reporting person will disgorge to the issuer an aggregate short-swing profit of $10,716.
(2) In addition to the shares held directly by the reporting person, the reporting person is the majority shareholder and control person of Annamed, Inc. Annamed, Inc. holds 1,425,000 shares of Issuer common stock. The Pursuant to General Instruction 5(b)(iv) of Form 3, the amount set forth in the table represents the reporting person's proportionate interest in the Issuer common stock beneficially owned by Annamed, Inc.

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