Traws Pharma, Inc. — Director's Dealing 2014

Feb 24, 2014

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Onconova Therapeutics, Inc. (ONTX)
CIK: 0001130598
Period of Report: 2014-02-20

Reporting Person: Michael & Jane Hoffman 2013 Descendants (10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2014-02-20	Common Stock	P	71740	$8.03	Acquired	4446535	Direct
2014-02-21	Common Stock	P	71740	$8.91	Acquired	4518275	Direct

Footnotes

F1: The price reported in Column 4 is a weighted average price. These shares were purchased, pursuant to a 10b5-1 plan, in multiple transactions at prices ranging from $7.76 to $8.72,inclusive. The reporting person undertakes to provide to the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2: The price reported in Column 4 is a weighted average price. These shares were purchased, pursuant to a 10b5-1 plan, in multiple transactions at prices ranging from $8.56 to $9.16,inclusive. The reporting person undertakes to provide to the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote (2) to this Form 4.