Exhibit 23.3
Consent of Independent Registered Public Accounting Firm
We hereby consent to the incorporation by reference in this Registration Statement on Form S-3 of our report dated March 26, 2014 relating to the financial statements, which appears in Aratana Therapeutics, Inc.’s Annual Report on Form 10-K for the year ended December 31, 2013. We also consent to the reference to us under the heading “Experts” in such Registration Statement.
/s/ PricewaterhouseCoopers LLP
Boston, Massachusetts
July 15, 2014