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 *
Pershing Square Capital Management, L.P.
   2. Issuer Name and Ticker or Trading Symbol
Zoetis Inc. [ZTS] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
888 SEVENTH AVENUE, 42ND FLOOR		 3. Date of Earliest Transaction (Month/Day/Year)
05/09/2016
(Street)

NEW YORK, NY 10019		 4. If Amendment, Date Original Filed(Month/Day/Year)
 6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ 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, par value $0.01 per share 05/09/2016   S   16,850,000 D $ 46.55 24,973,145 I See footnotes (1) (2) (3) (4)

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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
Pershing Square Capital Management, L.P.
888 SEVENTH AVENUE
42ND FLOOR
NEW YORK, NY 10019		   X      
PS Management GP, LLC
888 SEVENTH AVENUE
42ND FLOOR
NEW YORK, NY 10019		   X      
ACKMAN WILLIAM A
888 SEVENTH AVENUE
42ND FLOOR
NEW YORK, NY 10019		   X      

Signatures

 Pershing Square Capital Management, L.P., By: PS Management GP, LLC, its General Partner, By: /s/ William A. Ackman, Managing Member   05/10/2016
**Signature of Reporting Person Date
 PS Management GP, LLC, By: /s/ William A. Ackman, Managing Member   05/10/2016
**Signature of Reporting Person Date
 /s/ William A. Ackman   05/10/2016
**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) In addition to Pershing Square Capital Management, L.P., a Delaware limited partnership ("Pershing Square"), this Form 4 is being filed jointly by PS Management GP, LLC, a Delaware limited liability company ("PS Management"), and William A. Ackman, a citizen of the United States of America (collectively, the "Reporting Persons"), each of whom has the same business address as Pershing Square and may be deemed to have a pecuniary interest in securities reported on this Form 4 (the "Subject Securities").
(2) Pershing Square advises the accounts of Pershing Square, L.P., a Delaware limited partnership ("PS"), Pershing Square II, L.P., a Delaware limited partnership ("PS II"), Pershing Square International, Ltd., a Cayman Islands exempted company ("PS International"), and Pershing Square Holdings, Ltd., a limited liability company incorporated in Guernsey ("PSH" and together with PS, PS II and PS International, the "Pershing Square Funds").
(3) Pershing Square, as the investment adviser to the Pershing Square Funds, may be deemed to be the beneficial owner of the Subject Securities for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1934. As the general partner of Pershing Square, PS Management may be deemed to be the beneficial owner of the Subject Securities for purposes of Rule 16a-1(a). By virtue of Mr. Ackman's position as Chief Executive Officer of Pershing Square and managing member of PS Management, Mr. Ackman may be deemed to be the beneficial owner of the Subject Securities for purposes of Rule 16a-1(a). Each of the Reporting Persons disclaims any beneficial ownership of any of the Subject Securities, except to the extent of any pecuniary interest therein.
(4) Mr. Doyle, a member of the board of directors of the Issuer, was elected to that board as a representative of Pershing Square, PS Management, the Pershing Square Funds and Pershing Square GP, LLC. As a result, each of those entities are directors by deputization for purposes of Section 16 of the Securities Exchange Act of 1934.

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