UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 13F Form 13F COVER PAGE Report for the Calendar Year or Quarter Ended: March 31, 2013 Check here if Amendment [ ]; Amendment Number: This Amendment (Check only one.): [ ] is a restatement. [ ] adds new holdings entries. Institutional Investment Manager Filing this Report: Name: Essex Woodlands Health Ventures Address: 21 Waterway Ave Suite 225 The Woodlands, TX 77380 13F File Number: 028-14839 The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists, and tables, are considered integral parts of this form. Person Signing this Report on Behalf of Reporting Manager: Name: Richard Kolodziejcyk Title: Chief Financial Officer Phone: 281-364-1555 Signature, Place, and Date of Signing: /s/ Richard Kolodziejcyk The Woodlands, TX/USA May 15, 2013 Report Type (Check only one.): [ X] 13F HOLDINGS REPORT. [ ] 13F NOTICE. [ ] 13F COMBINATION REPORT. FORM 13F SUMMARY PAGE Report Summary: Number of Other Included Managers: 0 Form 13F Information Table Entry Total: 11 Form 13F Information Table Value Total: $128,089 (thousands) List of Other Included Managers: Provide a numbered list of the name(s) and Form 13F file number(s) of all institutional managers with respect to which this report is filed, other than the manager filing this report. NONE FORM 13F INFORMATION TABLE VALUE SHARES/ SH/ PUT/ INVSTMT OTHER VOTING AUTHORITY NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DSCRETN MANAGERS SOLE SHARED NONE ------------------------------ ---------------- --------- -------- -------- --- ---- ------- ------------ -------- -------- -------- ABIOMED INC COM 003654100 58810 3150000 SH SOLE 3150000 0 0 ACURA PHARMACEUTICALS INC COM NEW 00509L703 21272 10294886 SH SOLE 10294886 0 0 CHINA CORD BLOOD CORP SHS G21107100 3040 1037690 SH SOLE 1037690 0 0 CURIS INC COM 231269101 767 233797 SH SOLE 233797 0 0 ECHO THERAPEUTICS INC COM 27876L107 97 123186 SH SOLE 123186 0 0 ENDOLOGIX INC COM 29266S106 18822 1165428 SH SOLE 1165428 0 0 HORIZON PHARMA INC COM 44047T109 14604 5815940 SH SOLE 5815940 0 0 MEDICINOVA INC COM NEW 58468P206 3137 1170370 SH SOLE 1170370 0 0 PALATIN TECHNOLOGIES INC COM PAR $ .01 696077403 14 23928 SH SOLE 23928 0 0 SOLTA MED INC COM 83438K103 2927 1330219 SH SOLE 1330219 0 0 ZIOPHARM ONCOLOGY INC COM 98973P101 4599 2764908 SH SOLE 2764908 0 0