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 55,590 1,275,000 SH   SOLE   1,275,000 0 0
ACHILLION PHARMACEUTICALS IN COM 00448Q201 6,315 1,500,000 SH   SOLE   1,500,000 0 0
ACLARIS THERAPEUTICS INC COM 00461U105 20,129 675,000 SH   SOLE   675,000 0 0
ADAPTIMMUNE THERAPEUTICS PLC SPONDS ADR 00653A107 4,821 875,000 SH   SOLE   875,000 0 0
ADURO BIOTECH INC COM 00739L101 4,461 415,000 SH   SOLE   415,000 0 0
ADVANCED ACCELERATOR APPLIC SPONSORED ADS 00790T100 33,881 850,000 SH   SOLE   850,000 0 0
AEGLEA BIOTHERAPEUTICS INC COM 00773J103 3,904 524,089 SH   SOLE   524,089 0 0
AETNA INC NEW COM 00817Y108 28,061 220,000 SH   SOLE   220,000 0 0
AIMMUNE THERAPEUTICS INC COM 00900T107 6,367 293,000 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 55,395 456,900 SH   SOLE   456,900 0 0
ALKERMES PLC SHS G01767105 7,313 125,000 SH   SOLE   125,000 0 0
ALLERGAN PLC SHS G0177J108 39,661 166,000 SH   SOLE   166,000 0 0
ALLERGAN PLC PFD CONV SER A G0177J116 4,242 5,000 SH   SOLE   5,000 0 0
ALMOST FAMILY INC COM 020409108 10,935 225,000 SH   SOLE   225,000 0 0
AMARIN CORP PLC SPONS ADR NEW 023111206 16,004 5,001,200 SH   SOLE   5,001,200 0 0
AMGEN INC COM 031162100 16,079 98,000 SH   SOLE   98,000 0 0
AMICUS THERAPEUTICS INC COM 03152W109 5,401 757,500 SH   SOLE   757,500 0 0
ANTHERA PHARMACEUTICALS INC COM NEW 03674U201 552 1,296,568 SH   SOLE   1,296,568 0 0
ARDELYX INC COM 039697107 25,300 2,000,000 SH   SOLE   2,000,000 0 0
ASCENDIS PHARMA A S SPONSORED ADR 04351P101 9,100 325,000 SH   SOLE   325,000 0 0
ASSEMBLY BIOSCIENCES INC COM 045396108 9,941 390,000 SH   SOLE   390,000 0 0
ATHENAHEALTH INC COM 04685W103 7,071 62,750 SH   SOLE   62,750 0 0
ATYR PHARMA INC COM 002120103 1,663 475,000 SH   SOLE   475,000 0 0
AUDENTES THERAPEUTICS INC COM 05070R104 8,520 500,000 SH   SOLE   500,000 0 0
AVEXIS INC COM 05366U100 10,644 140,000 SH   SOLE   140,000 0 0
BEIGENE LTD SPONSORED ADR 07725L102 9,702 265,000 SH   SOLE   265,000 0 0
BIOGEN INC COM 09062X103 13,124 48,000 SH   SOLE   48,000 0 0
BIOMARIN PHARMACEUTICAL INC COM 09061G101 10,973 125,000 SH   SOLE   125,000 0 0
BLUEBIRD BIO INC COM 09609G100 2,772 30,500 SH   SOLE   30,500 0 0
BRISTOL MYERS SQUIBB CO COM 110122108 24,612 452,600 SH   SOLE   452,600 0 0
CARA THERAPEUTICS INC COM 140755109 2,759 150,000 SH   SOLE   150,000 0 0
CARDIOME PHARMA CORP COM NO PAR 14159U301 3,612 1,200,000 SH   SOLE   1,200,000 0 0
CELGENE CORP COM 151020104 30,174 242,500 SH   SOLE   242,500 0 0
CERULEAN PHARMA INC COM 15708Q105 508 625,000 SH   SOLE   625,000 0 0
CHIASMA INC COM 16706W102 837 492,500 SH   SOLE   492,500 0 0
CHINA CORD BLOOD CORP SHS G21107100 5,861 880,000 SH   SOLE   880,000 0 0
CIDARA THERAPEUTICS INC COM 171757107 2,340 300,000 SH   SOLE   300,000 0 0
CIGNA CORPORATION COM 125509109 39,552 270,000 SH   SOLE   270,000 0 0
CLEARSIDE BIOMEDICAL INC COM 185063104 7,424 935,000 SH   SOLE   935,000 0 0
CLOVIS ONCOLOGY INC COM 189464100 11,747 184,500 SH   SOLE   184,500 0 0
COHERUS BIOSCIENCES INC COM 19249H103 14,276 675,000 SH   SOLE   675,000 0 0
COLLEGIUM PHARMACEUTICAL INC COM 19459J104 17,102 1,700,000 SH   SOLE   1,700,000 0 0
COMPUGEN LTD ORD M25722105 3,548 825,000 SH   SOLE   825,000 0 0
CORVUS PHARMACEUTICALS INC COM 221015100 8,777 422,600 SH   SOLE   422,600 0 0
DANAHER CORP DEL COM 235851102 13,685 160,000 SH   SOLE   160,000 0 0
DBV TECHNOLOGIES S A SPONSORED ADR 23306J101 2,571 73,000 SH   SOLE   73,000 0 0
DERMIRA INC COM 24983L104 13,221 387,600 SH   SOLE   387,600 0 0
DIMENSION THERAPEUTICS INC COM 25433V105 475 271,370 SH   SOLE   271,370 0 0
DYNAVAX TECHNOLOGIES CORP COM NEW 268158201 982 165,000 SH   SOLE   165,000 0 0
EDWARDS LIFESCIENCES CORP COM 28176E108 13,405 142,500 SH   SOLE   142,500 0 0
EGALET CORP COM 28226B104 1,530 300,000 SH   SOLE   300,000 0 0
EGALET CORP NOTE 5.500% 4/0 28226BAB0 6,455 7,800,000 PRN   SOLE   7,800,000 0 0
ENVISION HEALTHCARE CORP COM 29414D100 8,891 145,000 SH   SOLE   145,000 0 0
EPIZYME INC COM 29428V104 9,776 570,000 SH   SOLE   570,000 0 0
EXACT SCIENCES CORP COM 30063P105 7,972 337,500 SH   SOLE   337,500 0 0
EXELIXIS INC COM 30161Q104 3,792 175,000 SH   SOLE   175,000 0 0
FIBROGEN INC COM 31572Q808 5,916 240,000 SH   SOLE   240,000 0 0
FIVE PRIME THERAPEUTICS INC COM 33830X104 5,965 165,000 SH   SOLE   165,000 0 0
GALAPAGOS NV SPON ADR 36315X101 18,100 210,000 SH   SOLE   210,000 0 0
GENOCEA BIOSCIENCES INC COM 372427104 2,923 480,000 SH   SOLE   480,000 0 0
GILEAD SCIENCES INC COM 375558103 19,459 286,500 SH   SOLE   286,500 0 0
GLAUKOS CORP COM 377322102 3,206 62,500 SH   SOLE   62,500 0 0
GLOBAL BLOOD THERAPEUTICS IN COM 37890U108 5,528 150,000 SH   SOLE   150,000 0 0
GW PHARMACEUTICALS PLC ADS 36197T103 43,115 356,500 SH   SOLE   356,500 0 0
HEALTHEQUITY INC COM 42226A107 2,123 50,000 SH   SOLE   50,000 0 0
HEALTHSOUTH CORP COM NEW 421924309 11,345 265,000 SH   SOLE   265,000 0 0
HILL ROM HLDGS INC COM 431475102 3,177 45,000 SH   SOLE   45,000 0 0
HOLOGIC INC COM 436440101 14,467 340,000 SH   SOLE   340,000 0 0
HUMANA INC COM 444859102 27,314 132,500 SH   SOLE   132,500 0 0
INCYTE CORP COM 45337C102 22,590 169,000 SH   SOLE   169,000 0 0
INFINITY PHARMACEUTICALS INC COM 45665G303 872 270,000 SH   SOLE   270,000 0 0
INNOVIVA INC COM 45781M101 3,250 235,000 SH   SOLE   235,000 0 0
INSMED INC COM PAR $.01 457669307 8,195 468,000 SH   SOLE   468,000 0 0
INTERSECT ENT INC COM 46071F103 5,917 345,000 SH   SOLE   345,000 0 0
INTRA CELLULAR THERAPIES INC COM 46116X101 3,088 190,000 SH   SOLE   190,000 0 0
INTUITIVE SURGICAL INC COM NEW 46120E602 36,791 48,000 SH   SOLE   48,000 0 0
INVITAE CORP COM 46185L103 13,272 1,200,000 SH   SOLE   1,200,000 0 0
JAZZ PHARMACEUTICALS PLC SHS USD G50871105 17,953 123,700 SH   SOLE   123,700 0 0
JOHNSON & JOHNSON COM 478160104 21,796 175,000 SH   SOLE   175,000 0 0
JUNO THERAPEUTICS INC COM 48205A109 4,371 197,001 SH   SOLE   197,001 0 0
KITE PHARMA INC COM 49803L109 5,259 67,000 SH   SOLE   67,000 0 0
LIGAND PHARMACEUTICALS INC COM NEW 53220K504 5,292 50,000 SH   SOLE   50,000 0 0
LILLY ELI & CO COM 532457108 27,336 325,000 SH   SOLE   325,000 0 0
LOXO ONCOLOGY INC COM 548862101 7,616 181,000 SH   SOLE   181,000 0 0
MACROGENICS INC COM 556099109 4,185 225,000 SH   SOLE   225,000 0 0
MADRIGAL PHARMACEUTICALS INC COM 558868105 3,465 225,000 SH   SOLE   225,000 0 0
MEDICINES CO COM 584688105 34,230 700,000 SH   SOLE   700,000 0 0
MEDICINES CO NOTE 2.500% 1/1 584688AE5 4,744 3,000,000 PRN   SOLE   3,000,000 0 0
MERCK & CO INC COM 58933Y105 47,655 750,000 SH   SOLE   750,000 0 0
MERUS N V COM N5749R100 9,379 384,548 SH   SOLE   384,548 0 0
MYOVANT SCIENCES LTD COM G637AM102 1,761 150,000 SH   SOLE   150,000 0 0
NABRIVA THERAPEUTICS AG SPONSORED ADR 62957M104 6,300 525,000 SH   SOLE   525,000 0 0
NEUROCRINE BIOSCIENCES INC COM 64125C109 17,753 410,000 SH   SOLE   410,000 0 0
NEURODERM LTD ORD SHS M74231107 2,232 84,079 SH   SOLE   84,079 0 0
NEWLINK GENETICS CORP COM 651511107 1,616 67,071 SH   SOLE   67,071 0 0
NIVALIS THERAPEUTICS INC COM 65481J109 1,752 600,000 SH   SOLE   600,000 0 0
NOVADAQ TECHNOLOGIES INC COM 66987G102 4,323 555,000 SH   SOLE   555,000 0 0
NOVAVAX INC COM 670002104 1,050 820,000 SH   SOLE   820,000 0 0
NOVOCURE LTD ORD SHS G6674U108 1,736 214,316 SH   SOLE   214,316 0 0
OBSEVA SA COM H5861P103 8,730 838,634 SH   SOLE   838,634 0 0
OREXIGEN THERAPEUTICS INC COM NEW 686164302 569 165,300 SH   SOLE   165,300 0 0
OTONOMY INC COM 68906L105 2,573 210,000 SH   SOLE   210,000 0 0
PACIRA PHARMACEUTICALS INC COM 695127100 45,600 1,000,000 SH   SOLE   1,000,000 0 0
PARATEK PHARMACEUTICALS INC COM 699374302 10,116 525,500 SH   SOLE   525,500 0 0
PATHEON N V SHS N6865W105 10,536 400,000 SH   SOLE   400,000 0 0
PENUMBRA INC COM 70975L107 25,911 310,500 SH   SOLE   310,500 0 0
PERRIGO CO PLC SHS G97822103 1,036 15,600 SH   SOLE   15,600 0 0
PRA HEALTH SCIENCES INC COM 69354M108 29,843 457,500 SH   SOLE   457,500 0 0
PROTEOSTASIS THERAPEUTICS IN COM 74373B109 3,519 450,000 SH   SOLE   450,000 0 0
PROTHENA CORP PLC SHS G72800108 17,267 309,500 SH   SOLE   309,500 0 0
PUMA BIOTECHNOLOGY INC COM 74587V107 3,515 94,500 SH   SOLE   94,500 0 0
RA PHARMACEUTICALS INC COM 74933V108 16,797 788,959 SH   SOLE   788,959 0 0
RADIUS HEALTH INC COM NEW 750469207 35,181 910,250 SH   SOLE   910,250 0 0
REGENERON PHARMACEUTICALS COM 75886F107 5,851 15,100 SH   SOLE   15,100 0 0
RETROPHIN INC COM 761299106 7,384 400,000 SH   SOLE   400,000 0 0
RIGEL PHARMACEUTICALS INC COM NEW 766559603 3,310 1,000,000 SH   SOLE   1,000,000 0 0
RTI SURGICAL INC COM 74975N105 7,440 1,860,000 SH   SOLE   1,860,000 0 0
SAREPTA THERAPEUTICS INC COM 803607100 5,742 194,000 SH   SOLE   194,000 0 0
SCYNEXIS INC COM 811292101 2,098 760,000 SH   SOLE   760,000 0 0
SERES THERAPEUTICS INC COM 81750R102 2,479 220,000 SH   SOLE   220,000 0 0
SHIRE PLC SPONSORED ADR 82481R106 24,201 138,900 SH   SOLE   138,900 0 0
SPARK THERAPEUTICS INC COM 84652J103 33,338 625,000 SH   SOLE   625,000 0 0
STERIS PLC SHS USD G84720104 4,515 65,000 SH   SOLE   65,000 0 0
TANDEM DIABETES CARE INC COM 875372104 714 595,000 SH   SOLE   595,000 0 0
TESARO INC COM 881569107 73,073 474,900 SH   SOLE   474,900 0 0
TETRAPHASE PHARMACEUTICALS I COM 88165N105 6,415 698,000 SH   SOLE   698,000 0 0
THERAPEUTICSMD INC COM 88338N107 11,520 1,600,000 SH   SOLE   1,600,000 0 0
THERAVANCE BIOPHARMA INC NOTE 3.250%11/0 88339KAA0 1,899 1,500,000 PRN   SOLE   1,500,000 0 0
THERAVANCE BIOPHARMA INC COM G8807B106 22,092 600,000 SH   SOLE   600,000 0 0
ULTRAGENYX PHARMACEUTICAL IN COM 90400D108 10,828 159,750 SH   SOLE   159,750 0 0
UNITEDHEALTH GROUP INC COM 91324P102 27,062 165,000 SH   SOLE   165,000 0 0
VALEANT PHARMACEUTICALS INTL COM 91911K102 732 66,400 SH   SOLE   66,400 0 0
VERTEX PHARMACEUTICALS INC COM 92532F100 9,896 90,500 SH   SOLE   90,500 0 0
WALGREENS BOOTS ALLIANCE INC COM 931427108 13,371 161,000 SH   SOLE   161,000 0 0
WELLCARE HEALTH PLANS INC COM 94946T106 32,879 234,500 SH   SOLE   234,500 0 0
WILLIS TOWERS WATSON PUB LTD SHS G96629103 14,398 110,000 SH   SOLE   110,000 0 0
WRIGHT MED GROUP INC NOTE 2.000% 2/1 98235TAE7 1,198 1,000,000 PRN   SOLE   1,000,000 0 0
WRIGHT MED GROUP N V ORD SHS 0.03 PAR N96617118 20,850 670,000 SH   SOLE   670,000 0 0
ZIMMER BIOMET HLDGS INC COM 98956P102 2,577 21,100 SH   SOLE   21,100 0 0