Ownership Submission
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, Section 17(a) of the Public Utility Holding Company Act of 1935 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 *
Guerin Mark Patrick
   2. Issuer Name and Ticker or Trading Symbol
Onconova Therapeutics, Inc. [ONTX] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Chief Accounting Officer
(Last)
(First)
(Middle)
C/O ONCONOVA THERAPEUTICS, INC., 375 PHEASANT RUN		 3. Date of Earliest Transaction (Month/Day/Year)
07/26/2016
(Street)

NEWTOWN, PA 18940		 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 07/29/2016   X   3,666 A $ 4.1 (1) 3,726 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
Subscription Rights (right to buy) $ 4.1 07/26/2016   X     90 07/08/2016 07/26/2016 See footnote (1) 90 $ 0 0 D  
Warrants (right to buy) $ 4.92 07/29/2016   X   2,749   07/29/2016 07/27/2021 Common Stock (2) 2,749 (1) 2,749 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Guerin Mark Patrick
C/O ONCONOVA THERAPEUTICS, INC.
375 PHEASANT RUN
NEWTOWN, PA 18940		       Chief Accounting Officer  

Signatures

 Mark Guerin   08/10/2016
**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 common stock and the warrants reported on this Form 4 were acquired pursuant to the exercise of subscription rights previously distributed by the Issuer to all holders of the Issuer's common stock. Each holder received 1.5 subscription rights per share of stock owned, and each right allowed the recipient to purchase one unit, consisting of one share of common stock and 0.75 of a warrant to purchase one share of common stock. The subscription price per unit was $4.10. Holders of the subscription rights, including the Reporting Person, also had an overallotment privilege to subscribe for additional units not purchased by other holders, subject to allocation. The allocation of the overallotment privilege to persons who hold their securities through a broker was completed on August 1, 2016.
(2) Each warrant entitles the holder to purchase one share of the Company's common stock at an exercise price of $4.92 from the date of issuance through July 27, 2021.

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