FORM 4
[ X ] 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
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

Nunn Jason Raleigh 		2. Issuer Name and Ticker or Trading Symbol

HYPERION THERAPEUTICS INC [ HPTX ] 		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)

1954 GREENSPRING DRIVE, SUITE 600 		3. Date of Earliest Transaction (MM/DD/YYYY)

5/7/2015
(Street)

TIMONIUM, MD 21093
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
6. Individual or Joint/Group Filing (Check Applicable Line)

_ X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3) 		2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. 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   5/7/2015     U    70   (1) D $46   0   I   held by Jake and Dana Nunn Living Trust U/A DTD 07/07/06  
Common Stock   5/7/2015     D    2617   (2) D $46   0   D    

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3) 		2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. 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 7. Title and Amount of Securities Underlying Derivative Security
(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
Stock Option (Right to Buy)   $4.08   5/7/2015     D         11855      (3) 4/14/2021   Common Stock   11855   $46   0   D    
Stock Option (Right to Buy)   $7.31   5/7/2015     D         4105      (3) 4/15/2022   Common Stock   4105   $46   0   D    
Stock Option (Right to Buy)   $24.46   5/7/2015     D         9800      (3) 4/14/2023   Common Stock   9800   $46   0   D    
Stock Option (Right to Buy)   $26.97   5/7/2015     D         4869      (3) 5/26/2024   Common Stock   4869   $46   0   D    

Explanation of Responses:
( 1)  Shares that were tendered pursuant to the offer from Horizon Pharma plc ("Horizon") to acquire shares of the Issuer.
( 2)  Restricted stock units covering shares of Issuer common stock that will be cashed-out and cancelled in connection with the merger of the Issuer and Horizon (the "Merger").
( 3)  Options to acquire shares of Issuer common stock that will be cashed-out and cancelled in connection with the Merger.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
Nunn Jason Raleigh
1954 GREENSPRING DRIVE
SUITE 600
TIMONIUM, MD 21093 		X



Signatures
/s/ Sasha Keough, attorney-in-fact 5/11/2015
** Signature of Reporting Person Date


Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.
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