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 45,818 924,678 SH   SOLE   924,678 0 0
ACHILLION PHARMACEUTICALS IN COM 00448Q201 10,660 1,316,000 SH   SOLE   1,316,000 0 0
ACLARIS THERAPEUTICS INC COM 00461U105 26,020 1,016,000 SH   SOLE   1,016,000 0 0
ADAPTIMMUNE THERAPEUTICS PLC SPONDS ADR 00653A107 4,759 675,000 SH   SOLE   675,000 0 0
ADURO BIOTECH INC COM 00739L101 5,158 415,000 SH   SOLE   415,000 0 0
ADVANCED ACCELERATOR APPLIC SPONSORED ADS 00790T100 35,414 930,000 SH   SOLE   930,000 0 0
AEGLEA BIOTHERAPEUTICS INC COM 00773J103 3,359 524,089 SH   SOLE   524,089 0 0
AETNA INC NEW COM 00817Y108 50,810 440,100 SH   SOLE   440,100 0 0
AIMMUNE THERAPEUTICS INC COM 00900T107 4,395 293,000 SH   SOLE   293,000 0 0
ALDER BIOPHARMACEUTICALS INC COM 014339105 5,964 182,000 SH   SOLE   182,000 0 0
ALEXION PHARMACEUTICALS INC COM 015351109 32,749 267,250 SH   SOLE   267,250 0 0
ALKERMES PLC SHS G01767105 8,608 183,027 SH   SOLE   183,027 0 0
ALLERGAN PLC SHS G0177J108 42,838 186,000 SH   SOLE   186,000 0 0
ALLERGAN PLC PFD CONV SER A G0177J116 4,106 5,000 SH   SOLE   5,000 0 0
AMARIN CORP PLC SPONS ADR NEW 023111206 15,809 4,955,746 SH   SOLE   4,955,746 0 0
AMGEN INC COM 031162100 15,680 94,000 SH   SOLE   94,000 0 0
AMICUS THERAPEUTICS INC COM 03152W109 5,143 695,000 SH   SOLE   695,000 0 0
AMSURG CORP COM 03232P405 2,179 32,500 SH   SOLE   32,500 0 0
ANTHERA PHARMACEUTICALS INC COM NEW 03674U201 1,418 450,000 SH   SOLE   450,000 0 0
ARDELYX INC COM 039697107 25,557 1,975,000 SH   SOLE   1,975,000 0 0
ARIAD PHARMACEUTICALS INC COM 04033A100 342 25,000 SH   SOLE   25,000 0 0
ASCENDIS PHARMA A S SPONSORED ADR 04351P101 6,030 300,000 SH   SOLE   300,000 0 0
ASSEMBLY BIOSCIENCES INC COM 045396108 2,812 390,000 SH   SOLE   390,000 0 0
ATHENAHEALTH INC COM 04685W103 5,770 45,750 SH   SOLE   45,750 0 0
ATYR PHARMA INC COM 002120103 1,379 433,500 SH   SOLE   433,500 0 0
AUDENTES THERAPEUTICS INC COM 05070R104 8,638 485,000 SH   SOLE   485,000 0 0
AVEXIS INC COM 05366U100 5,769 140,000 SH   SOLE   140,000 0 0
BEIGENE LTD SPONSORED ADR 07725L102 6,932 225,000 SH   SOLE   225,000 0 0
BIOGEN INC COM 09062X103 18,156 58,000 SH   SOLE   58,000 0 0
BIOMARIN PHARMACEUTICAL INC COM 09061G101 11,565 125,000 SH   SOLE   125,000 0 0
BIOSCRIP INC COM 09069N108 4,308 1,490,492 SH   SOLE   1,490,492 0 0
BLUEBIRD BIO INC COM 09609G100 1,356 20,000 SH   SOLE   20,000 0 0
BRISTOL MYERS SQUIBB CO COM 110122108 13,480 250,000 SH   SOLE   250,000 0 0
CARDIOME PHARMA CORP COM NO PAR 14159U301 3,751 1,200,000 SH   SOLE   1,200,000 0 0
CELGENE CORP COM 151020104 26,603 254,500 SH   SOLE   254,500 0 0
CERNER CORP COM 156782104 1,235 20,000 SH   SOLE   20,000 0 0
CERULEAN PHARMA INC COM 15708Q105 654 625,000 SH   SOLE   625,000 0 0
CHIASMA INC COM 16706W102 1,448 492,500 SH   SOLE   492,500 0 0
CHINA CORD BLOOD CORP SHS G21107100 4,497 880,000 SH   SOLE   880,000 0 0
CIDARA THERAPEUTICS INC COM 171757107 2,863 250,000 SH   SOLE   250,000 0 0
CIGNA CORPORATION COM 125509109 29,778 228,500 SH   SOLE   228,500 0 0
CLEARSIDE BIOMEDICAL INC COM 185063104 21,254 1,225,000 SH   SOLE   1,225,000 0 0
CLOVIS ONCOLOGY INC COM 189464100 4,506 125,000 SH   SOLE   125,000 0 0
COHERUS BIOSCIENCES INC COM 19249H103 12,520 467,500 SH   SOLE   467,500 0 0
COLLEGIUM PHARMACEUTICAL INC COM 19459J104 29,757 1,545,000 SH   SOLE   1,545,000 0 0
COMPUGEN LTD ORD M25722105 5,198 825,000 SH   SOLE   825,000 0 0
CORVUS PHARMACEUTICALS INC COM 221015100 7,403 450,000 SH   SOLE   450,000 0 0
DANAHER CORP DEL COM 235851102 12,542 160,000 SH   SOLE   160,000 0 0
DBV TECHNOLOGIES S A SPONSORED ADR 23306J101 2,652 73,000 SH   SOLE   73,000 0 0
DERMIRA INC COM 24983L104 12,006 355,000 SH   SOLE   355,000 0 0
DIMENSION THERAPEUTICS INC COM 25433V105 2,168 271,370 SH   SOLE   271,370 0 0
DYNAVAX TECHNOLOGIES CORP COM NEW 268158201 1,731 165,000 SH   SOLE   165,000 0 0
EDWARDS LIFESCIENCES CORP COM 28176E108 12,448 103,250 SH   SOLE   103,250 0 0
EGALET CORP COM 28226B104 2,283 300,000 SH   SOLE   300,000 0 0
EGALET CORP NOTE 5.500% 4/0 28226BAB0 6,684 7,800,000 PRN   SOLE   7,800,000 0 0
ENDOCHOICE HLDGS INC COM 29272U103 5,766 722,500 SH   SOLE   722,500 0 0
ENVISION HEALTHCARE HLDGS IN COM 29413U103 6,481 291,000 SH   SOLE   291,000 0 0
EPIZYME INC COM 29428V104 6,322 642,500 SH   SOLE   642,500 0 0
EXACT SCIENCES CORP COM 30063P105 8,078 435,000 SH   SOLE   435,000 0 0
EXELIXIS INC COM 30161Q104 1,599 125,000 SH   SOLE   125,000 0 0
FIBROGEN INC COM 31572Q808 4,833 233,500 SH   SOLE   233,500 0 0
FIVE PRIME THERAPEUTICS INC COM 33830X104 8,726 166,250 SH   SOLE   166,250 0 0
GALAPAGOS NV SPON ADR 36315X101 13,579 210,000 SH   SOLE   210,000 0 0
GENOCEA BIOSCIENCES INC COM 372427104 2,458 480,000 SH   SOLE   480,000 0 0
GILEAD SCIENCES INC COM 375558103 27,217 344,000 SH   SOLE   344,000 0 0
GLOBAL BLOOD THERAPEUTICS IN COM 37890U108 2,259 98,000 SH   SOLE   98,000 0 0
GW PHARMACEUTICALS PLC ADS 36197T103 43,137 325,000 SH   SOLE   325,000 0 0
HCA HOLDINGS INC COM 40412C101 32,521 430,000 SH   SOLE   430,000 0 0
HEALTHSOUTH CORP COM NEW 421924309 10,751 265,000 SH   SOLE   265,000 0 0
HILL ROM HLDGS INC COM 431475102 7,438 120,000 SH   SOLE   120,000 0 0
HOLOGIC INC COM 436440101 9,805 252,500 SH   SOLE   252,500 0 0
INCYTE CORP COM 45337C102 14,756 156,500 SH   SOLE   156,500 0 0
INFINITY PHARMACEUTICALS INC COM 45665G303 421 270,000 SH   SOLE   270,000 0 0
INNOVIVA INC COM 45781M101 3,703 336,900 SH   SOLE   336,900 0 0
INSMED INC COM PAR $.01 457669307 7,304 503,000 SH   SOLE   503,000 0 0
INSYS THERAPEUTICS INC NEW COM NEW 45824V209 1,179 100,000 SH   SOLE   100,000 0 0
INTERSECT ENT INC COM 46071F103 5,465 345,000 SH   SOLE   345,000 0 0
INTRA CELLULAR THERAPIES INC COM 46116X101 2,896 190,000 SH   SOLE   190,000 0 0
INTUITIVE SURGICAL INC COM NEW 46120E602 32,617 45,000 SH   SOLE   45,000 0 0
INVITAE CORP COM 46185L103 7,796 890,000 SH   SOLE   890,000 0 0
JAZZ PHARMACEUTICALS PLC SHS USD G50871105 12,998 107,000 SH   SOLE   107,000 0 0
JUNO THERAPEUTICS INC COM 48205A109 5,912 197,001 SH   SOLE   197,001 0 0
KITE PHARMA INC COM 49803L109 4,413 79,000 SH   SOLE   79,000 0 0
LIGAND PHARMACEUTICALS INC COM NEW 53220K504 6,634 65,000 SH   SOLE   65,000 0 0
LILLY ELI & CO COM 532457108 22,152 276,000 SH   SOLE   276,000 0 0
MACROGENICS INC COM 556099109 6,730 225,000 SH   SOLE   225,000 0 0
MADRIGAL PHARMACEUTICALS INC COM 558868105 799 63,000 SH   SOLE   63,000 0 0
MCKESSON CORP COM 58155Q103 13,674 82,000 SH   SOLE   82,000 0 0
MEDICINES CO COM 584688105 25,701 681,000 SH   SOLE   681,000 0 0
MEDICINES CO NOTE 2.500% 1/1 584688AE5 3,898 3,000,000 PRN   SOLE   3,000,000 0 0
MEDNAX INC COM 58502B106 3,313 50,000 SH   SOLE   50,000 0 0
MEDPACE HLDGS INC COM 58506Q109 4,031 135,000 SH   SOLE   135,000 0 0
MERCK & CO INC COM 58933Y105 36,666 587,500 SH   SOLE   587,500 0 0
MERUS N V COM N5749R100 6,415 383,000 SH   SOLE   383,000 0 0
NABRIVA THERAPEUTICS AG SPONSORED ADR 62957M104 3,003 426,000 SH   SOLE   426,000 0 0
NEUROCRINE BIOSCIENCES INC COM 64125C109 20,762 410,000 SH   SOLE   410,000 0 0
NIVALIS THERAPEUTICS INC COM 65481J109 3,976 489,000 SH   SOLE   489,000 0 0
NOVADAQ TECHNOLOGIES INC COM 66987G102 6,421 555,000 SH   SOLE   555,000 0 0
NOVAVAX INC COM 670002104 1,773 852,500 SH   SOLE   852,500 0 0
NOVOCURE LTD ORD SHS G6674U108 1,830 214,316 SH   SOLE   214,316 0 0
OPHTHOTECH CORP COM 683745103 6,827 148,000 SH   SOLE   148,000 0 0
OREXIGEN THERAPEUTICS INC COM NEW 686164302 549 165,300 SH   SOLE   165,300 0 0
OTONOMY INC COM 68906L105 3,820 210,000 SH   SOLE   210,000 0 0
PACIRA PHARMACEUTICALS INC COM 695127100 17,247 504,000 SH   SOLE   504,000 0 0
PARATEK PHARMACEUTICALS INC COM 699374302 6,538 502,500 SH   SOLE   502,500 0 0
PATHEON N V SHS N6865W105 11,852 400,000 SH   SOLE   400,000 0 0
PENUMBRA INC COM 70975L107 20,251 266,500 SH   SOLE   266,500 0 0
PERRIGO CO PLC SHS G97822103 3,499 37,900 SH   SOLE   37,900 0 0
PFIZER INC COM 717081103 35,760 1,055,800 SH   SOLE   1,055,800 0 0
PRA HEALTH SCIENCES INC COM 69354M108 14,297 253,000 SH   SOLE   253,000 0 0
PROTEOSTASIS THERAPEUTICS IN COM 74373B109 7,016 450,000 SH   SOLE   450,000 0 0
PROTHENA CORP PLC SHS G72800108 18,471 308,000 SH   SOLE   308,000 0 0
PUMA BIOTECHNOLOGY INC COM 74587V107 4,660 69,500 SH   SOLE   69,500 0 0
RADIUS HEALTH INC COM NEW 750469207 48,248 892,000 SH   SOLE   892,000 0 0
REGENERON PHARMACEUTICALS COM 75886F107 6,834 17,000 SH   SOLE   17,000 0 0
RETROPHIN INC COM 761299106 11,682 522,000 SH   SOLE   522,000 0 0
RIGEL PHARMACEUTICALS INC COM NEW 766559603 6,643 1,810,000 SH   SOLE   1,810,000 0 0
RTI SURGICAL INC COM 74975N105 5,822 1,860,000 SH   SOLE   1,860,000 0 0
SAREPTA THERAPEUTICS INC COM 803607100 10,624 173,000 SH   SOLE   173,000 0 0
SCYNEXIS INC COM 811292101 2,457 635,000 SH   SOLE   635,000 0 0
SERES THERAPEUTICS INC COM 81750R102 2,704 220,000 SH   SOLE   220,000 0 0
SHIRE PLC SPONSORED ADR 82481R106 25,686 132,500 SH   SOLE   132,500 0 0
SPARK THERAPEUTICS INC COM 84652J103 37,538 625,000 SH   SOLE   625,000 0 0
STERIS PLC SHS USD G84720104 2,924 40,000 SH   SOLE   40,000 0 0
TANDEM DIABETES CARE INC COM 875372104 4,558 595,000 SH   SOLE   595,000 0 0
TESARO INC COM 881569107 62,800 626,500 SH   SOLE   626,500 0 0
TETRAPHASE PHARMACEUTICALS I COM 88165N105 2,537 662,500 SH   SOLE   662,500 0 0
THERAPEUTICSMD INC COM 88338N107 12,258 1,800,000 SH   SOLE   1,800,000 0 0
THERAVANCE BIOPHARMA INC COM G8807B106 21,744 600,000 SH   SOLE   600,000 0 0
ULTRAGENYX PHARMACEUTICAL IN COM 90400D108 10,428 147,000 SH   SOLE   147,000 0 0
VALEANT PHARMACEUTICALS INTL COM 91911K102 1,684 68,600 SH   SOLE   68,600 0 0
VERTEX PHARMACEUTICALS INC COM 92532F100 7,827 89,750 SH   SOLE   89,750 0 0
WALGREENS BOOTS ALLIANCE INC COM 931427108 12,980 161,000 SH   SOLE   161,000 0 0
WELLCARE HEALTH PLANS INC COM 94946T106 27,458 234,500 SH   SOLE   234,500 0 0
WILLIS TOWERS WATSON PUB LTD SHS G96629103 7,767 58,500 SH   SOLE   58,500 0 0
WRIGHT MED GROUP INC NOTE 2.000% 2/1 98235TAE7 1,073 1,000,000 PRN   SOLE   1,000,000 0 0
WRIGHT MED GROUP N V ORD SHS 0.03 PAR N96617118 15,037 613,000 SH   SOLE   613,000 0 0