X0304 4 2011-08-02 0 0001492426 HORIZON PHARMA, INC. HZNP 0001342821 Himawan Jeff C/O HORIZON PHARMA, INC. 1033 SKOKIE BLVD., SUITE 355 NORTHBROOK IL 60062 1 0 1 0 Common Stock 2011-08-02 4 C 0 1431467 A 1431467 I See FN Common Stock 2011-08-02 4 C 0 179317 A 1610784 I See FN Common Stock 2011-08-02 4 C 0 362366 9.00 A 1973150 I See FN Common Stock 2011-08-02 4 P 0 330104 9.00 A 2303254 I See FN Series A Convertible Preferred Stock 2011-08-02 4 C 0 1431467 0.00 D Common Stock 1431467 0 I See FN Series B Convertible Preferred Stock 2011-08-02 4 C 0 179317 0.00 D Common Stock 179317 0 I See FN Convertible Promissory Notes 9.00 2011-08-02 4 C 0 3261306.43 0.00 D Common Stock 362366 0 I See FN Warrant to Purchase Series A Preferred Stock 5.201 2011-08-02 4 C 0 67970 0.00 D 2015-10-31 Series A Preferred Stock 67970 0 I See FN Warrant to Purchase Series A Preferred Stock 5.201 2011-08-02 4 C 0 33985 0.00 D 2016-07-02 Series A Preferred Stock 33985 0 I See FN Warrant to Purchase Series A Preferred Stock 5.201 2011-08-02 4 C 0 42484 0.00 D 2016-09-25 Series A Preferred Stock 42484 0 I See FN Warrant to Purchase Common Stock 12.35 2011-08-02 4 C 0 28630 0.00 A 2015-10-31 Common Stock 28630 28630 I See FN Warrant to Purchase Common Stock 12.35 2011-08-02 4 C 0 14315 0.00 A 2016-07-02 Common Stock 14315 14315 I See FN Warrant to Purchase Common Stock 12.35 2011-08-02 4 C 0 17895 0.00 A 2016-09-25 Common Stock 17895 17895 I See FN Automatic conversion, in connection with the Issuer's initial public offering, of preferred stock into shares of common stock. Every 2.374 shares of preferred stock converted into one share of common stock upon the closing of the Issuer's initial public offering. The securities are held directly by Essex Woodlands Health Ventures Fund VII, L.P. (the "Fund"). The Reporting Person is a manager of Essex Woodlands Health Ventures VII, L.L.C., which is the general partner of Essex Woodlands Health Ventures VII, L.P., the general partner of the Fund. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein. Represents shares acquired upon conversion, in connection with the Issuer's initial public offering, of convertible promissory notes. These securities are preferred stock of the Issuer and did not have an expiration date. Prior to the Issuer's initial public offering of common stock, the securities were convertible at any time at the election of the holder. The securities automatically converted into shares of common stock upon the closing of the issuer's initial public offering of common stock. Principal and accrued interest converted upon the Issuer's initial public offering of common stock, into shares of common stock. Automatic conversion, in connection with the Issuer's initial public offering, of warrants to purchase Series A Preferred Stock into warrants to purchase Common Stock. The warrants converted at a rate of 2.374 shares of Series A Preferred Stock to 1 share of Common Stock. The warrants are immediately exercisable and shall terminate on the earlier of the expiration date referenced herein or the occurence of other specified corporate transactions. /s/ Jeff Himawan 2011-08-04