The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F INFORMATION TABLE
OMB APPROVAL
OMB Number: 3235-0006
Estimated average burden
hours per response: 23.8
COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8
VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY
NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
ACADIA PHARMACEUTICALS INC COM 004225108 12,033 350,000 SH   SOLE   350,000 0 0
ACADIA PHARMACEUTICALS INC COM 004225108 7,124 207,200 SH Put SOLE   207,200 0 0
ACCELERON PHARMA INC COM 00434H108 10,588 400,000 SH   SOLE   400,000 0 0
ACORDA THERAPEUTICS INC COM 00484M106 6,300 300,000 SH   SOLE   300,000 0 0
ADURO BIOTECH INC COM 00739L101 8,600 800,000 SH   SOLE   800,000 0 0
AERIE PHARMACEUTICALS INC COM 00771V108 9,977 220,000 SH Call SOLE   220,000 0 0
AGIOS PHARMACEUTICALS INC COM 00847X104 7,300 125,000 SH   SOLE   125,000 0 0
AKARI THERAPEUTICS PLC SPONSORED ADR 00972G108 516 46,622 SH   SOLE   46,622 0 0
AQUINOX PHARMACEUTICALS INC COM 03842B101 3,755 225,000 SH   SOLE   225,000 0 0
AVEO PHARMACEUTICALS INC COM 053588109 885 1,500,000 SH   SOLE   1,500,000 0 0
AVEXIS INC COM 05366U100 13,305 175,000 SH   SOLE   175,000 0 0
BIOCRYST PHARMACEUTICALS COM 09058V103 12,600 1,500,000 SH   SOLE   1,500,000 0 0
BLUEPRINT MEDICINES CORP COM 09627Y109 3,999 100,000 SH   SOLE   100,000 0 0
BOSTON SCIENTIFIC CORP COM 101137107 11,192 450,000 SH   SOLE   450,000 0 0
BRISTOL MYERS SQUIBB CO COM 110122108 8,157 150,000 SH Call SOLE   150,000 0 0
CLOVIS ONCOLOGY INC COM 189464100 12,734 200,000 SH   SOLE   200,000 0 0
COLLEGIUM PHARMACEUTICAL INC COM 19459J104 3,773 375,000 SH   SOLE   375,000 0 0
CONFORMIS INC COM 20717E101 2,088 400,000 SH   SOLE   400,000 0 0
CURRENCYSHARES SWISS FRANC T SWISS FRANC SH 23129V109 1,835 19,300 SH   SOLE   19,300 0 0
CYMABAY THERAPEUTICS INC COM 23257D103 2,150 500,000 SH   SOLE   500,000 0 0
DBV TECHNOLOGIES S A SPONSORED ADR 23306J101 17,610 500,000 SH   SOLE   500,000 0 0
DERMIRA INC COM 24983L104 2,217 65,000 SH   SOLE   65,000 0 0
ENANTA PHARMACEUTICALS INC COM 29251M106 9,240 300,000 SH   SOLE   300,000 0 0
ENDOLOGIX INC COM 29266S106 9,412 1,300,000 SH   SOLE   1,300,000 0 0
ENTELLUS MED INC COM 29363K105 5,175 375,000 SH   SOLE   375,000 0 0
EPIZYME INC COM 29428V104 10,290 600,000 SH   SOLE   600,000 0 0
FOAMIX PHARMACEUTICALS LTD SHS M46135105 619 125,000 SH   SOLE   125,000 0 0
GENMARK DIAGNOSTICS INC COM 372309104 8,333 650,000 SH   SOLE   650,000 0 0
IMMUNOMEDICS INC COM 452907108 9,705 1,500,000 SH   SOLE   1,500,000 0 0
INCYTE CORP COM 45337C102 4,678 35,000 SH   SOLE   35,000 0 0
INTRA CELLULAR THERAPIES INC COM 46116X101 2,438 150,000 SH   SOLE   150,000 0 0
IRIDEX CORP COM 462684101 2,968 250,000 SH   SOLE   250,000 0 0
ISHARES TR RUSSELL 2000 ETF 464287655 34,370 250,000 SH Put SOLE   250,000 0 0
K2M GROUP HLDGS INC COM 48273J107 5,845 285,000 SH   SOLE   285,000 0 0
LION BIOTECHNOLOGIES INC COM 53619R102 8,940 1,200,000 SH   SOLE   1,200,000 0 0
MERCK & CO INC COM 58933Y105 9,531 150,000 SH   SOLE   150,000 0 0
MIRATI THERAPEUTICS INC COM 60468T105 895 172,184 SH   SOLE   172,184 0 0
NANOSTRING TECHNOLOGIES INC COM 63009R109 7,948 400,000 SH   SOLE   400,000 0 0
NEUROCRINE BIOSCIENCES INC COM 64125C109 12,990 300,000 SH   SOLE   300,000 0 0
NOVADAQ TECHNOLOGIES INC COM 66987G102 7,011 900,000 SH   SOLE   900,000 0 0
NUVASIVE INC COM 670704105 8,962 120,000 SH   SOLE   120,000 0 0
NXSTAGE MEDICAL INC COM 67072V103 5,366 200,000 SH   SOLE   200,000 0 0
PORTOLA PHARMACEUTICALS INC COM 737010108 7,838 200,000 SH   SOLE   200,000 0 0
PROTHENA CORP PLC SHS G72800108 5,579 100,000 SH   SOLE   100,000 0 0
PTC THERAPEUTICS INC COM 69366J200 1,968 200,000 SH   SOLE   200,000 0 0
PUMA BIOTECHNOLOGY INC COM 74587V107 8,370 225,000 SH   SOLE   225,000 0 0
RA PHARMACEUTICALS INC COM 74933V108 6,387 300,000 SH   SOLE   300,000 0 0
RIGEL PHARMACEUTICALS INC COM NEW 766559603 3,641 1,100,000 SH   SOLE   1,100,000 0 0
SAGE THERAPEUTICS INC COM 78667J108 7,107 100,000 SH   SOLE   100,000 0 0
SEATTLE GENETICS INC COM 812578102 12,572 200,000 SH   SOLE   200,000 0 0
SHIRE PLC SPONSORED ADR 82481R106 5,227 30,000 SH   SOLE   30,000 0 0
SPARK THERAPEUTICS INC COM 84652J103 10,668 200,000 SH   SOLE   200,000 0 0
SPDR S&P 500 ETF TR TR UNIT 78462F103 23,574 100,000 SH Put SOLE   100,000 0 0
SPDR SERIES TRUST S&P BIOTECH 78464A870 62,406 900,000 SH Put SOLE   900,000 0 0
SPECTRANETICS CORP COM 84760C107 4,514 155,000 SH   SOLE   155,000 0 0
SPECTRANETICS CORP COM 84760C107 9,464 325,000 SH Call SOLE   325,000 0 0
STEMLINE THERAPEUTICS INC COM 85858C107 1,924 225,000 SH   SOLE   225,000 0 0
TESARO INC COM 881569107 7,694 50,000 SH Call SOLE   50,000 0 0
VERTEX PHARMACEUTICALS INC COM 92532F100 9,842 90,000 SH   SOLE   90,000 0 0
WRIGHT MED GROUP N V ORD SHS 0.03 PAR N96617118 5,757 185,000 SH   SOLE   185,000 0 0
XENON PHARMACEUTICALS INC COM 98420N105 600 150,000 SH   SOLE   150,000 0 0
ZIMMER BIOMET HLDGS INC COM 98956P102 12,211 100,000 SH   SOLE   100,000 0 0
ZOGENIX INC COM NEW 98978L204 3,960 365,000 SH   SOLE   365,000 0 0
ZOSANO PHARMA CORP COM 98979H103 1,786 940,000 SH   SOLE   940,000 0 0