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
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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 7,670 275,000 SH   SOLE   275,000 0 0
ACCELERON PHARMA INC COM 00434H108 2,735 90,000 SH   SOLE   90,000 0 0
ACORDA THERAPEUTICS INC COM 00484M106 7,880 400,000 SH   SOLE   400,000 0 0
AIMMUNE THERAPEUTICS INC COM 00900T107 5,140 250,000 SH   SOLE   250,000 0 0
ALDER BIOPHARMACEUTICALS INC COM 014339105 2,863 250,000 SH   SOLE   250,000 0 0
ALEXION PHARMACEUTICALS INC COM 015351109 12,167 100,000 SH   SOLE   100,000 0 0
ALEXION PHARMACEUTICALS INC COM 015351109 5,475 45,000 SH Call SOLE   45,000 0 0
AQUINOX PHARMACEUTICALS INC COM 03842B101 4,221 300,000 SH   SOLE   300,000 0 0
ARGENX SE SPONSORED ADR 04016X101 4,163 196,287 SH   SOLE   196,287 0 0
ATARA BIOTHERAPEUTICS INC COM 046513107 4,900 350,000 SH   SOLE   350,000 0 0
AUDENTES THERAPEUTICS INC COM 05070R104 957 50,000 SH   SOLE   50,000 0 0
AVEXIS INC COM 05366U100 15,610 190,000 SH   SOLE   190,000 0 0
AXOVANT SCIENCES LTD COM G0750W104 4,058 175,000 SH   SOLE   175,000 0 0
BIOCRYST PHARMACEUTICALS COM 09058V103 3,753 675,000 SH   SOLE   675,000 0 0
BLUEPRINT MEDICINES CORP COM 09627Y109 3,547 70,000 SH   SOLE   70,000 0 0
BOSTON SCIENTIFIC CORP COM 101137107 4,851 175,000 SH   SOLE   175,000 0 0
BRISTOL MYERS SQUIBB CO COM 110122108 16,746 300,000 SH Call SOLE   300,000 0 0
CLOVIS ONCOLOGY INC COM 189464100 28,183 301,000 SH Call SOLE   301,000 0 0
CURRENCYSHS BRIT POUND STER BRIT POUND STE 23129S106 6,455 50,900 SH   SOLE   50,900 0 0
CYMABAY THERAPEUTICS INC COM 23257D103 3,744 650,000 SH   SOLE   650,000 0 0
DBV TECHNOLOGIES S A SPONSORED ADR 23306J101 15,177 425,000 SH   SOLE   425,000 0 0
ENANTA PHARMACEUTICALS INC COM 29251M106 7,196 200,000 SH   SOLE   200,000 0 0
ENDO INTL PLC SHS G30401106 8,378 750,000 SH   SOLE   750,000 0 0
ENTELLUS MED INC COM 29363K105 6,210 375,000 SH   SOLE   375,000 0 0
EPIZYME INC COM 29428V104 2,265 150,000 SH   SOLE   150,000 0 0
EXELIXIS INC COM 30161Q104 7,389 300,000 SH Put SOLE   300,000 0 0
FOAMIX PHARMACEUTICALS LTD SHS M46135105 580 125,000 SH   SOLE   125,000 0 0
GENMARK DIAGNOSTICS INC COM 372309104 9,760 825,000 SH   SOLE   825,000 0 0
GILEAD SCIENCES INC COM 375558103 5,309 75,000 SH   SOLE   75,000 0 0
GW PHARMACEUTICALS PLC ADS 36197T103 12,531 125,000 SH   SOLE   125,000 0 0
IMMUNOMEDICS INC COM 452907108 10,596 1,200,000 SH   SOLE   1,200,000 0 0
INSMED INC COM PAR $.01 457669307 8,151 475,000 SH   SOLE   475,000 0 0
INTRA CELLULAR THERAPIES INC COM 46116X101 2,484 200,000 SH   SOLE   200,000 0 0
INTRA CELLULAR THERAPIES INC COM 46116X101 6,210 500,000 SH Call SOLE   500,000 0 0
IOVANCE BIOTHERAPEUTICS INC COM 462260100 4,043 550,000 SH   SOLE   550,000 0 0
IRHYTHM TECHNOLOGIES INC COM 450056106 6,374 150,000 SH   SOLE   150,000 0 0
IRIDEX CORP COM 462684101 2,473 250,000 SH   SOLE   250,000 0 0
JUNO THERAPEUTICS INC COM 48205A109 8,220 275,000 SH   SOLE   275,000 0 0
K2M GROUP HLDGS INC COM 48273J107 3,654 150,000 SH   SOLE   150,000 0 0
KITE PHARMA INC COM 49803L109 5,184 50,000 SH Call SOLE   50,000 0 0
MERCK & CO INC COM 58933Y105 12,818 200,000 SH Call SOLE   200,000 0 0
NANOSTRING TECHNOLOGIES INC COM 63009R109 5,789 350,000 SH   SOLE   350,000 0 0
NEOS THERAPEUTICS INC COM 64052L106 3,650 500,000 SH   SOLE   500,000 0 0
NEUROCRINE BIOSCIENCES INC COM 64125C109 6,900 150,000 SH   SOLE   150,000 0 0
NEVRO CORP COM 64157F103 12,281 165,000 SH   SOLE   165,000 0 0
NOVADAQ TECHNOLOGIES INC COM 66987G102 5,860 500,000 SH   SOLE   500,000 0 0
NUVASIVE INC COM 670704105 7,692 100,000 SH   SOLE   100,000 0 0
NXSTAGE MEDICAL INC COM 67072V103 6,518 260,000 SH   SOLE   260,000 0 0
PORTOLA PHARMACEUTICALS INC COM 737010108 11,234 200,000 SH   SOLE   200,000 0 0
PORTOLA PHARMACEUTICALS INC COM 737010108 22,468 400,000 SH Put SOLE   400,000 0 0
PTC THERAPEUTICS INC COM 69366J200 3,666 200,000 SH   SOLE   200,000 0 0
PUMA BIOTECHNOLOGY INC COM 74587V107 13,110 150,000 SH   SOLE   150,000 0 0
QUOTIENT LTD SHS G73268107 2,208 300,000 SH   SOLE   300,000 0 0
RA PHARMACEUTICALS INC COM 74933V108 1,593 85,000 SH   SOLE   85,000 0 0
REVANCE THERAPEUTICS INC COM 761330109 2,357 89,295 SH   SOLE   89,295 0 0
RIGEL PHARMACEUTICALS INC COM NEW 766559603 3,003 1,100,000 SH   SOLE   1,100,000 0 0
SAGE THERAPEUTICS INC COM 78667J108 3,982 50,000 SH   SOLE   50,000 0 0
SEATTLE GENETICS INC COM 812578102 15,522 300,000 SH   SOLE   300,000 0 0
SPARK THERAPEUTICS INC COM 84652J103 2,091 35,000 SH   SOLE   35,000 0 0
SPDR SERIES TRUST S&P BIOTECH 78464A870 27,013 350,000 SH Put SOLE   350,000 0 0
SPECTRANETICS CORP COM 84760C107 7,680 200,000 SH Call SOLE   200,000 0 0
SYNDAX PHARMACEUTICALS INC COM 87164F105 2,794 200,000 SH   SOLE   200,000 0 0
TESARO INC COM 881569107 6,993 50,000 SH   SOLE   50,000 0 0
VIEWRAY INC COM 92672L107 4,853 750,000 SH   SOLE   750,000 0 0
ZIMMER BIOMET HLDGS INC COM 98956P102 10,272 80,000 SH   SOLE   80,000 0 0
ZOGENIX INC COM NEW 98978L204 1,450 100,000 SH   SOLE   100,000 0 0