Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF 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 *
  Walbert Timothy P
 2. Date of Event Requiring Statement (Month/Day/Year)
07/28/2011		 3. Issuer Name and Ticker or Trading Symbol
HORIZON PHARMA, INC. [HZNP]
(Last)
(First)
(Middle)
C/O HORIZON PHARMA, INC., 1033 SKOKIE BLVD., SUITE 355		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
President, Chairman and CEO
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

NORTHBROOK, IL 60062		 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 Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Employee Stock Option (Right to Buy)   (1) 07/15/2018 Common Stock 121,701 $ 10.43 D  
Employee Stock Option (Right to Buy)   (2) 02/02/2020 Common Stock 128,937 $ 5.2 D  
Employee Stock Option (Right to Buy)   (3) 06/05/2020 Common Stock 112,787 $ 12.94 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Walbert Timothy P
C/O HORIZON PHARMA, INC.
1033 SKOKIE BLVD., SUITE 355
NORTHBROOK, IL 60062		   X     President, Chairman and CEO  

Signatures

/s/ Timothy P. Walbert 07/28/2011
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(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) 25% of the Shares subject to the Option vest and become exercisable on June 30, 2009, and 1/48th of the Shares vest in equal monthly installments thereafter.
(2) 25% of the Shares subject to the Option vest and become exercisable on February 3, 2011, and 1/48th of the Shares vest in equal monthly installments thereafter.
(3) The Shares subject to the Option vest and become exercisable in 48 equal monthly installments commencing July 6, 2010.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, See Instruction 6 for procedure.

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