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 HEALTHCARE COMPANY IN COM 00404A109 38,313 1,157,500 SH   SOLE   1,157,500 0 0
ACHILLION PHARMACEUTICALS IN COM 00448Q201 5,679 1,375,000 SH   SOLE   1,375,000 0 0
ACLARIS THERAPEUTICS INC COM 00461U105 29,854 1,100,000 SH   SOLE   1,100,000 0 0
ADAPTIMMUNE THERAPEUTICS PLC SPONDS ADR 00653A107 2,734 675,000 SH   SOLE   675,000 0 0
ADURO BIOTECH INC COM 00739L101 4,731 415,000 SH   SOLE   415,000 0 0
ADVANCED ACCELERATOR APPLIC SPONSORED ADS 00790T100 24,887 930,000 SH   SOLE   930,000 0 0
AEGLEA BIOTHERAPEUTICS INC COM 00773J103 2,280 524,089 SH   SOLE   524,089 0 0
AETNA INC NEW COM 00817Y108 54,688 441,000 SH   SOLE   441,000 0 0
AIMMUNE THERAPEUTICS INC COM 00900T107 5,992 293,000 SH   SOLE   293,000 0 0
ALDER BIOPHARMACEUTICALS INC COM 014339105 3,786 182,000 SH   SOLE   182,000 0 0
ALEXION PHARMACEUTICALS INC COM 015351109 56,893 465,000 SH   SOLE   465,000 0 0
ALKERMES PLC SHS G01767105 6,948 125,000 SH   SOLE   125,000 0 0
ALLERGAN PLC SHS G0177J108 34,862 166,000 SH   SOLE   166,000 0 0
ALLERGAN PLC PFD CONV SER A G0177J116 3,820 5,000 SH   SOLE   5,000 0 0
AMARIN CORP PLC SPONS ADR NEW 023111206 15,374 4,991,500 SH   SOLE   4,991,500 0 0
AMGEN INC COM 031162100 14,109 96,500 SH   SOLE   96,500 0 0
AMICUS THERAPEUTICS INC COM 03152W109 3,765 757,500 SH   SOLE   757,500 0 0
ANTHERA PHARMACEUTICALS INC COM NEW 03674U201 247 380,000 SH   SOLE   380,000 0 0
ARDELYX INC COM 039697107 28,400 2,000,000 SH   SOLE   2,000,000 0 0
ARIAD PHARMACEUTICALS INC COM 04033A100 3,110 250,000 SH   SOLE   250,000 0 0
ASCENDIS PHARMA A S SPONSORED ADR 04351P101 6,578 325,000 SH   SOLE   325,000 0 0
ASSEMBLY BIOSCIENCES INC COM 045396108 4,739 390,000 SH   SOLE   390,000 0 0
ATHENAHEALTH INC COM 04685W103 6,599 62,750 SH   SOLE   62,750 0 0
ATYR PHARMA INC COM 002120103 1,021 475,000 SH   SOLE   475,000 0 0
AUDENTES THERAPEUTICS INC COM 05070R104 8,861 485,000 SH   SOLE   485,000 0 0
AVEXIS INC COM 05366U100 6,682 140,000 SH   SOLE   140,000 0 0
BEIGENE LTD SPONSORED ADR 07725L102 8,045 265,000 SH   SOLE   265,000 0 0
BIOGEN INC COM 09062X103 13,328 47,000 SH   SOLE   47,000 0 0
BIOMARIN PHARMACEUTICAL INC COM 09061G101 10,355 125,000 SH   SOLE   125,000 0 0
BLUEBIRD BIO INC COM 09609G100 1,758 28,500 SH   SOLE   28,500 0 0
BRISTOL MYERS SQUIBB CO COM 110122108 26,298 450,000 SH   SOLE   450,000 0 0
CARDIOME PHARMA CORP COM NO PAR 14159U301 3,312 1,200,000 SH   SOLE   1,200,000 0 0
CELGENE CORP COM 151020104 28,069 242,500 SH   SOLE   242,500 0 0
CERULEAN PHARMA INC COM 15708Q105 443 625,000 SH   SOLE   625,000 0 0
CHIASMA INC COM 16706W102 960 492,500 SH   SOLE   492,500 0 0
CHINA CORD BLOOD CORP SHS G21107100 5,386 880,000 SH   SOLE   880,000 0 0
CIDARA THERAPEUTICS INC COM 171757107 3,120 300,000 SH   SOLE   300,000 0 0
CIGNA CORPORATION COM 125509109 33,614 252,000 SH   SOLE   252,000 0 0
CLEARSIDE BIOMEDICAL INC COM 185063104 8,359 935,000 SH   SOLE   935,000 0 0
CLOVIS ONCOLOGY INC COM 189464100 4,886 110,000 SH   SOLE   110,000 0 0
COHERUS BIOSCIENCES INC COM 19249H103 13,639 484,500 SH   SOLE   484,500 0 0
COLLEGIUM PHARMACEUTICAL INC COM 19459J104 24,912 1,600,000 SH   SOLE   1,600,000 0 0
COMPUGEN LTD ORD M25722105 4,208 825,000 SH   SOLE   825,000 0 0
CORVUS PHARMACEUTICALS INC COM 221015100 6,435 450,000 SH   SOLE   450,000 0 0
DANAHER CORP DEL COM 235851102 12,454 160,000 SH   SOLE   160,000 0 0
DBV TECHNOLOGIES S A SPONSORED ADR 23306J101 2,564 73,000 SH   SOLE   73,000 0 0
DERMIRA INC COM 24983L104 10,998 362,600 SH   SOLE   362,600 0 0
DIMENSION THERAPEUTICS INC COM 25433V105 1,180 271,370 SH   SOLE   271,370 0 0
DYNAVAX TECHNOLOGIES CORP COM NEW 268158201 652 165,000 SH   SOLE   165,000 0 0
EDWARDS LIFESCIENCES CORP COM 28176E108 11,291 120,500 SH   SOLE   120,500 0 0
EGALET CORP COM 28226B104 2,295 300,000 SH   SOLE   300,000 0 0
EGALET CORP NOTE 5.500% 4/0 28226BAB0 6,791 7,800,000 PRN   SOLE   7,800,000 0 0
ENVISION HEALTHCARE CORP COM 29414D100 9,177 145,000 SH   SOLE   145,000 0 0
EPIZYME INC COM 29428V104 6,897 570,000 SH   SOLE   570,000 0 0
EXACT SCIENCES CORP COM 30063P105 6,024 450,900 SH   SOLE   450,900 0 0
EXELIXIS INC COM 30161Q104 2,609 175,000 SH   SOLE   175,000 0 0
FIBROGEN INC COM 31572Q808 5,136 240,000 SH   SOLE   240,000 0 0
FIVE PRIME THERAPEUTICS INC COM 33830X104 8,218 164,000 SH   SOLE   164,000 0 0
GALAPAGOS NV SPON ADR 36315X101 13,480 210,000 SH   SOLE   210,000 0 0
GENOCEA BIOSCIENCES INC COM 372427104 1,978 480,000 SH   SOLE   480,000 0 0
GILEAD SCIENCES INC COM 375558103 19,800 276,500 SH   SOLE   276,500 0 0
GLOBAL BLOOD THERAPEUTICS IN COM 37890U108 1,394 96,500 SH   SOLE   96,500 0 0
GW PHARMACEUTICALS PLC ADS 36197T103 39,783 356,000 SH   SOLE   356,000 0 0
HEALTHEQUITY INC COM 42226A107 2,026 50,000 SH   SOLE   50,000 0 0
HEALTHSOUTH CORP COM NEW 421924309 10,929 265,000 SH   SOLE   265,000 0 0
HILL ROM HLDGS INC COM 431475102 2,667 47,500 SH   SOLE   47,500 0 0
HOLOGIC INC COM 436440101 10,632 265,000 SH   SOLE   265,000 0 0
INCYTE CORP COM 45337C102 16,946 169,000 SH   SOLE   169,000 0 0
INFINITY PHARMACEUTICALS INC COM 45665G303 365 270,000 SH   SOLE   270,000 0 0
INNOVIVA INC COM 45781M101 3,605 336,900 SH   SOLE   336,900 0 0
INSMED INC COM PAR $.01 457669307 6,192 468,000 SH   SOLE   468,000 0 0
INTERSECT ENT INC COM 46071F103 4,175 345,000 SH   SOLE   345,000 0 0
INTRA CELLULAR THERAPIES INC COM 46116X101 2,867 190,000 SH   SOLE   190,000 0 0
INTUITIVE SURGICAL INC COM NEW 46120E602 30,440 48,000 SH   SOLE   48,000 0 0
INVITAE CORP COM 46185L103 9,528 1,200,000 SH   SOLE   1,200,000 0 0
JAZZ PHARMACEUTICALS PLC SHS USD G50871105 13,487 123,700 SH   SOLE   123,700 0 0
JUNO THERAPEUTICS INC COM 48205A109 3,713 197,001 SH   SOLE   197,001 0 0
KITE PHARMA INC COM 49803L109 3,542 79,000 SH   SOLE   79,000 0 0
LIGAND PHARMACEUTICALS INC COM NEW 53220K504 7,113 70,000 SH   SOLE   70,000 0 0
LILLY ELI & CO COM 532457108 23,904 325,000 SH   SOLE   325,000 0 0
MACROGENICS INC COM 556099109 4,599 225,000 SH   SOLE   225,000 0 0
MADRIGAL PHARMACEUTICALS INC COM 558868105 2,606 174,891 SH   SOLE   174,891 0 0
MEDICINES CO COM 584688105 23,741 699,500 SH   SOLE   699,500 0 0
MEDICINES CO NOTE 2.500% 1/1 584688AE5 3,611 3,000,000 PRN   SOLE   3,000,000 0 0
MEDPACE HLDGS INC COM 58506Q109 4,869 135,000 SH   SOLE   135,000 0 0
MERCK & CO INC COM 58933Y105 44,153 750,000 SH   SOLE   750,000 0 0
MERUS N V COM N5749R100 8,444 400,000 SH   SOLE   400,000 0 0
MYOVANT SCIENCES LTD COM G637AM102 1,115 89,600 SH   SOLE   89,600 0 0
NABRIVA THERAPEUTICS AG SPONSORED ADR 62957M104 3,124 525,000 SH   SOLE   525,000 0 0
NEUROCRINE BIOSCIENCES INC COM 64125C109 15,867 410,000 SH   SOLE   410,000 0 0
NIVALIS THERAPEUTICS INC COM 65481J109 1,095 489,000 SH   SOLE   489,000 0 0
NOVADAQ TECHNOLOGIES INC COM 66987G102 3,935 555,000 SH   SOLE   555,000 0 0
NOVAVAX INC COM 670002104 1,033 820,000 SH   SOLE   820,000 0 0
NOVOCURE LTD ORD SHS G6674U108 1,682 214,316 SH   SOLE   214,316 0 0
OREXIGEN THERAPEUTICS INC COM NEW 686164302 288 165,300 SH   SOLE   165,300 0 0
OTONOMY INC COM 68906L105 3,339 210,000 SH   SOLE   210,000 0 0
PACIRA PHARMACEUTICALS INC COM 695127100 23,030 713,000 SH   SOLE   713,000 0 0
PARATEK PHARMACEUTICALS INC COM 699374302 8,093 525,500 SH   SOLE   525,500 0 0
PATHEON N V SHS N6865W105 11,484 400,000 SH   SOLE   400,000 0 0
PENUMBRA INC COM 70975L107 18,853 295,500 SH   SOLE   295,500 0 0
PERRIGO CO PLC SHS G97822103 774 9,300 SH   SOLE   9,300 0 0
PRA HEALTH SCIENCES INC COM 69354M108 16,536 300,000 SH   SOLE   300,000 0 0
PROTEOSTASIS THERAPEUTICS IN COM 74373B109 5,517 450,000 SH   SOLE   450,000 0 0
PROTHENA CORP PLC SHS G72800108 15,224 309,500 SH   SOLE   309,500 0 0
PUMA BIOTECHNOLOGY INC COM 74587V107 2,901 94,500 SH   SOLE   94,500 0 0
RA PHARMACEUTICALS INC COM 74933V108 12,547 826,000 SH   SOLE   826,000 0 0
RADIUS HEALTH INC COM NEW 750469207 34,617 910,250 SH   SOLE   910,250 0 0
REGENERON PHARMACEUTICALS COM 75886F107 7,158 19,500 SH   SOLE   19,500 0 0
RETROPHIN INC COM 761299106 9,881 522,000 SH   SOLE   522,000 0 0
RIGEL PHARMACEUTICALS INC COM NEW 766559603 2,380 1,000,000 SH   SOLE   1,000,000 0 0
RTI SURGICAL INC COM 74975N105 6,045 1,860,000 SH   SOLE   1,860,000 0 0
SAREPTA THERAPEUTICS INC COM 803607100 5,264 191,900 SH   SOLE   191,900 0 0
SCYNEXIS INC COM 811292101 2,424 760,000 SH   SOLE   760,000 0 0
SERES THERAPEUTICS INC COM 81750R102 2,178 220,000 SH   SOLE   220,000 0 0
SHIRE PLC SPONSORED ADR 82481R106 23,376 137,200 SH   SOLE   137,200 0 0
SPARK THERAPEUTICS INC COM 84652J103 31,188 625,000 SH   SOLE   625,000 0 0
STERIS PLC SHS USD G84720104 4,380 65,000 SH   SOLE   65,000 0 0
TANDEM DIABETES CARE INC COM 875372104 1,279 595,000 SH   SOLE   595,000 0 0
TESARO INC COM 881569107 82,503 613,500 SH   SOLE   613,500 0 0
TETRAPHASE PHARMACEUTICALS I COM 88165N105 2,813 698,000 SH   SOLE   698,000 0 0
THERAPEUTICSMD INC COM 88338N107 9,924 1,720,000 SH   SOLE   1,720,000 0 0
THERAVANCE BIOPHARMA INC NOTE 3.250%11/0 88339KAA0 1,713 1,500,000 PRN   SOLE   1,500,000 0 0
THERAVANCE BIOPHARMA INC COM G8807B106 19,128 600,000 SH   SOLE   600,000 0 0
ULTRAGENYX PHARMACEUTICAL IN COM 90400D108 11,232 159,750 SH   SOLE   159,750 0 0
UNITEDHEALTH GROUP INC COM 91324P102 26,407 165,000 SH   SOLE   165,000 0 0
VALEANT PHARMACEUTICALS INTL COM 91911K102 1,037 71,400 SH   SOLE   71,400 0 0
VERTEX PHARMACEUTICALS INC COM 92532F100 6,612 89,750 SH   SOLE   89,750 0 0
WALGREENS BOOTS ALLIANCE INC COM 931427108 13,324 161,000 SH   SOLE   161,000 0 0
WELLCARE HEALTH PLANS INC COM 94946T106 32,145 234,500 SH   SOLE   234,500 0 0
WILLIS TOWERS WATSON PUB LTD SHS G96629103 13,451 110,000 SH   SOLE   110,000 0 0
WRIGHT MED GROUP INC NOTE 2.000% 2/1 98235TAE7 1,047 1,000,000 PRN   SOLE   1,000,000 0 0
WRIGHT MED GROUP N V ORD SHS 0.03 PAR N96617118 15,328 667,000 SH   SOLE   667,000 0 0
ZIMMER BIOMET HLDGS INC COM 98956P102 2,178 21,100 SH   SOLE   21,100 0 0