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
10X GENOMICS INC CL A COM 88025U109 4,736 76,000 SH   SOLE   76,000 0 0
ACADIA HEALTHCARE COMPANY IN COM 00404A109 16,515 900,000 SH   SOLE   900,000 0 0
ACADIA PHARMACEUTICALS INC COM 004225108 43,306 1,025,000 SH   SOLE   1,025,000 0 0
ACCELERON PHARMA INC COM 00434H108 1,573 17,500 SH   SOLE   17,500 0 0
ACLARIS THERAPEUTICS INC COM 00461U105 1,664 1,600,000 SH   SOLE   1,600,000 0 0
ADAPTIMMUNE THERAPEUTICS PLC SPONDS ADR 00653A107 3,264 1,200,000 SH   SOLE   1,200,000 0 0
ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 15,140 545,000 SH   SOLE   545,000 0 0
AEGLEA BIOTHERAPEUTICS INC COM 00773J103 3,728 800,000 SH   SOLE   800,000 0 0
AGIOS PHARMACEUTICALS INC COM 00847X104 37,449 1,055,500 SH   SOLE   1,055,500 0 0
AKERO THERAPEUTICS INC COM 00973Y108 4,770 225,000 SH   SOLE   225,000 0 0
ALIGN TECHNOLOGY INC COM 016255101 22,179 127,500 SH   SOLE   127,500 0 0
ALLAKOS INC COM 01671P100 10,455 235,000 SH   SOLE   235,000 0 0
ALLOGENE THERAPEUTICS INC COM 019770106 4,860 250,000 SH   SOLE   250,000 0 0
ALNYLAM PHARMACEUTICALS INC COM 02043Q107 41,526 381,500 SH   SOLE   381,500 0 0
AMARIN CORP PLC SPONS ADR NEW 023111206 18,600 4,650,000 SH   SOLE   4,650,000 0 0
AMGEN INC COM 031162100 25,544 126,000 SH   SOLE   126,000 0 0
AMICUS THERAPEUTICS INC COM 03152W109 9,240 1,000,000 SH   SOLE   1,000,000 0 0
ANAPTYSBIO INC COM 032724106 4,239 300,000 SH   SOLE   300,000 0 0
APPLIED THERAPEUTICS INC COM 03828A101 27,646 845,700 SH   SOLE   845,700 0 0
APREA THERAPEUTICS INC COM 03836J102 17,380 500,000 SH   SOLE   500,000 0 0
ARDELYX INC COM 039697107 27,572 4,850,000 SH   SOLE   4,850,000 0 0
ARGENX SE SPONSORED ADR 04016X101 32,603 247,500 SH   SOLE   247,500 0 0
ARVINAS INC COM 04335A105 11,486 285,000 SH   SOLE   285,000 0 0
ASCENDIS PHARMA A S SPONSORED ADR 04351P101 24,042 213,500 SH   SOLE   213,500 0 0
ASSEMBLY BIOSCIENCES INC COM 045396108 22,245 1,500,000 SH   SOLE   1,500,000 0 0
AXONICS MODULATION TECHNOLOG COM 05465P101 3,176 125,000 SH   SOLE   125,000 0 0
BAXTER INTL INC COM 071813109 52,368 645,000 SH   SOLE   645,000 0 0
BEIGENE LTD SPONSORED ADR 07725L102 26,444 214,800 SH   SOLE   214,800 0 0
BIOGEN INC COM 09062X103 56,948 180,000 SH   SOLE   180,000 0 0
BIOHAVEN PHARMACTL HLDG CO L COM G11196105 6,806 200,000 SH   SOLE   200,000 0 0
BIOMARIN PHARMACEUTICAL INC COM 09061G101 32,110 380,000 SH   SOLE   380,000 0 0
BLUEPRINT MEDICINES CORP COM 09627Y109 43,100 737,000 SH   SOLE   737,000 0 0
BOSTON SCIENTIFIC CORP COM 101137107 35,893 1,100,000 SH   SOLE   1,100,000 0 0
BRISTOL-MYERS SQUIBB CO RIGHT 99/99/9999 110122157 704 185,150 SH   SOLE   185,150 0 0
CENTENE CORP DEL COM 15135B101 44,558 750,000 SH   SOLE   750,000 0 0
CHIASMA INC COM 16706W102 4,928 1,350,000 SH   SOLE   1,350,000 0 0
CIGNA CORP NEW COM 125523100 24,982 141,000 SH   SOLE   141,000 0 0
COHERUS BIOSCIENCES INC COM 19249H103 31,629 1,950,000 SH   SOLE   1,950,000 0 0
COLLEGIUM PHARMACEUTICAL INC COM 19459J104 19,188 1,175,000 SH   SOLE   1,175,000 0 0
COMPUGEN LTD ORD M25722105 7,986 1,100,000 SH   SOLE   1,100,000 0 0
CONMED CORP COM 207410101 10,309 180,000 SH   SOLE   180,000 0 0
CONSTELLATION PHARMCETICLS I COM 210373106 7,339 233,500 SH   SOLE   233,500 0 0
COVETRUS INC COM 22304C100 168 20,683 SH   SOLE   20,683 0 0
CYTOKINETICS INC NOTE 4.000%11/1 23282WAA8 10,573 8,000,000 PRN   SOLE   8,000,000 0 0
DECIPHERA PHARMACEUTICALS IN COM 24344T101 13,792 335,000 SH   SOLE   335,000 0 0
DYNAVAX TECHNOLOGIES CORP COM NEW 268158201 5,560 1,575,000 SH   SOLE   1,575,000 0 0
EDWARDS LIFESCIENCES CORP COM 28176E108 36,592 194,000 SH   SOLE   194,000 0 0
ENCOMPASS HEALTH CORP COM 29261A100 52,184 815,000 SH   SOLE   815,000 0 0
EPIZYME INC COM 29428V104 30,322 1,955,000 SH   SOLE   1,955,000 0 0
EXACT SCIENCES CORP COM 30063P105 24,592 424,000 SH   SOLE   424,000 0 0
FIBROGEN INC COM 31572Q808 10,634 306,000 SH   SOLE   306,000 0 0
FIVE PRIME THERAPEUTICS INC COM 33830X104 908 400,000 SH   SOLE   400,000 0 0
FORTY SEVEN INC COM 34983P104 42,691 447,400 SH   SOLE   447,400 0 0
FRESHPET INC COM 358039105 25,388 397,500 SH   SOLE   397,500 0 0
GALAPAGOS NV SPON ADR 36315X101 34,286 175,000 SH   SOLE   175,000 0 0
GALERA THERAPEUTICS INC COM 36338D108 4,750 500,000 SH   SOLE   500,000 0 0
GAMIDA CELL LTD SHS M47364100 3,020 1,000,000 SH   SOLE   1,000,000 0 0
GLOBAL BLOOD THERAPEUTICS IN COM 37890U108 14,305 280,000 SH   SOLE   280,000 0 0
GLOBAL CORD BLOOD CORPORATIO SHS G39342103 2,942 925,000 SH   SOLE   925,000 0 0
GUARDANT HEALTH INC COM 40131M109 13,224 190,000 SH   SOLE   190,000 0 0
GW PHARMACEUTICALS PLC ADS 36197T103 2,627 30,000 SH   SOLE   30,000 0 0
HCA HEALTHCARE INC COM 40412C101 46,722 520,000 SH   SOLE   520,000 0 0
HEALTH CATALYST INC COM 42225T107 11,114 425,000 SH   SOLE   425,000 0 0
HEALTHEQUITY INC COM 42226A107 15,430 305,000 SH   SOLE   305,000 0 0
HOMOLOGY MEDICINES INC COM 438083107 6,605 425,000 SH   SOLE   425,000 0 0
HUMANA INC COM 444859102 49,458 157,500 SH   SOLE   157,500 0 0
IDEXX LABS INC COM 45168D104 30,280 125,000 SH   SOLE   125,000 0 0
IMARA INC COM 45249V107 7,148 445,936 SH   SOLE   445,936 0 0
IMMUNOMEDICS INC COM 452907108 14,154 1,050,000 SH   SOLE   1,050,000 0 0
IMMUNOVANT INC COM 45258J102 3,891 250,000 SH   SOLE   250,000 0 0
INCYTE CORP COM 45337C102 18,308 250,000 SH   SOLE   250,000 0 0
INSMED INC NOTE 1.750% 1/1 457669AA7 5,040 6,000,000 PRN   SOLE   6,000,000 0 0
INSPIRE MED SYS INC COM 457730109 12,056 200,000 SH   SOLE   200,000 0 0
INSULET CORP COM 45784P101 48,379 292,000 SH   SOLE   292,000 0 0
INTERSECT ENT INC COM 46071F103 5,925 500,000 SH   SOLE   500,000 0 0
INTUITIVE SURGICAL INC COM NEW 46120E602 75,520 152,500 SH   SOLE   152,500 0 0
INVITAE CORP COM 46185L103 15,721 1,150,000 SH   SOLE   1,150,000 0 0
IRHYTHM TECHNOLOGIES INC COM 450056106 52,471 645,000 SH   SOLE   645,000 0 0
JOHNSON & JOHNSON COM 478160104 13,769 105,000 SH   SOLE   105,000 0 0
KARUNA THERAPEUTICS INC COM 48576A100 12,960 180,000 SH   SOLE   180,000 0 0
MACROGENICS INC COM 556099109 1,339 230,000 SH   SOLE   230,000 0 0
MADRIGAL PHARMACEUTICALS INC COM 558868105 16,690 250,000 SH   SOLE   250,000 0 0
MERSANA THERAPEUTICS INC COM 59045L106 7,188 1,233,000 SH   SOLE   1,233,000 0 0
MIRATI THERAPEUTICS INC COM 60468T105 26,251 341,500 SH   SOLE   341,500 0 0
MIRUM PHARMACEUTICALS INC COM 604749101 17,402 1,243,000 SH   SOLE   1,243,000 0 0
MOMENTA PHARMACEUTICALS INC COM 60877T100 10,880 400,000 SH   SOLE   400,000 0 0
MYOKARDIA INC COM 62857M105 7,735 165,000 SH   SOLE   165,000 0 0
MYOVANT SCIENCES LTD COM G637AM102 3,775 500,000 SH   SOLE   500,000 0 0
NABRIVA THERAPEUTICS PLC SHS G63637105 604 1,050,000 SH   SOLE   1,050,000 0 0
NEUROCRINE BIOSCIENCES INC COM 64125C109 116,799 1,349,500 SH   SOLE   1,349,500 0 0
NEUROCRINE BIOSCIENCES INC NOTE 2.250% 5/1 64125CAD1 1,287 1,000,000 PRN   SOLE   1,000,000 0 0
NEVRO CORP COM 64157F103 34,593 346,000 SH   SOLE   346,000 0 0
NGM BIOPHARMACEUTICALS INC COM 62921N105 4,329 351,100 SH   SOLE   351,100 0 0
NOVOCURE LTD ORD SHS G6674U108 11,785 175,000 SH   SOLE   175,000 0 0
OBSEVA SA COM H5861P103 3,374 1,400,000 SH   SOLE   1,400,000 0 0
ODONATE THERAPEUTICS INC COM 676079106 11,872 430,000 SH   SOLE   430,000 0 0
ONESPAWORLD HOLDINGS LIMITED COM P73684113 4,263 1,050,000 SH   SOLE   1,050,000 0 0
PACIRA BIOSCIENCES COM 695127100 30,177 900,000 SH   SOLE   900,000 0 0
PACIRA BIOSCIENCES NOTE 2.375% 4/0 695127AD2 966 1,000,000 PRN   SOLE   1,000,000 0 0
PARATEK PHARMACEUTICALS INC COM 699374302 4,808 1,526,310 SH   SOLE   1,526,310 0 0
PASSAGE BIO INC COM 702712100 3,544 225,000 SH   SOLE   225,000 0 0
PENUMBRA INC COM 70975L107 36,299 225,000 SH   SOLE   225,000 0 0
PHASEBIO PHARMACEUTICALS INC COM 717224109 3,724 1,125,000 SH   SOLE   1,125,000 0 0
PHREESIA INC COM 71944F106 11,882 565,000 SH   SOLE   565,000 0 0
PORTOLA PHARMACEUTICALS INC COM 737010108 12,491 1,751,900 SH   SOLE   1,751,900 0 0
PPD INC COM 69355F102 8,015 450,000 SH   SOLE   450,000 0 0
PROTHENA CORP PLC SHS G72800108 5,350 500,000 SH   SOLE   500,000 0 0
RADIUS HEALTH INC COM NEW 750469207 12,675 975,000 SH   SOLE   975,000 0 0
RADIUS HEALTH INC NOTE 3.000% 9/0 750469AA6 1,067 1,500,000 PRN   SOLE   1,500,000 0 0
RETROPHIN INC COM 761299106 8,389 575,000 SH   SOLE   575,000 0 0
RETROPHIN INC NOTE 2.500% 9/1 761299AB2 2,566 3,250,000 PRN   SOLE   3,250,000 0 0
RHYTHM PHARMACEUTICALS INC COM 76243J105 7,610 500,000 SH   SOLE   500,000 0 0
RIGEL PHARMACEUTICALS INC COM NEW 766559603 8,580 5,500,000 SH   SOLE   5,500,000 0 0
SAREPTA THERAPEUTICS INC COM 803607100 33,797 345,500 SH   SOLE   345,500 0 0
SEATTLE GENETICS INC COM 812578102 27,922 242,000 SH   SOLE   242,000 0 0
SPERO THERAPEUTICS INC COM 84833T103 4,888 605,000 SH   SOLE   605,000 0 0
STAAR SURGICAL CO COM PAR $0.01 852312305 5,000 155,000 SH   SOLE   155,000 0 0
TELEFLEX INCORPORATED COM 879369106 38,072 130,000 SH   SOLE   130,000 0 0
THERAVANCE BIOPHARMA INC NOTE 3.250%11/0 88339KAA0 1,448 1,500,000 PRN   SOLE   1,500,000 0 0
THERAVANCE BIOPHARMA INC COM G8807B106 17,333 750,000 SH   SOLE   750,000 0 0
THERMO FISHER SCIENTIFIC INC COM 883556102 4,963 17,500 SH   SOLE   17,500 0 0
TRANSLATE BIO INC COM 89374L104 8,225 825,000 SH   SOLE   825,000 0 0
TRILLIUM THERAPEUTICS INC COM NEW 89620X506 3,030 750,000 SH   SOLE   750,000 0 0
ULTRAGENYX PHARMACEUTICAL IN COM 90400D108 33,225 747,800 SH   SOLE   747,800 0 0
UNIQURE NV SHS N90064101 18,980 400,000 SH   SOLE   400,000 0 0
UNITEDHEALTH GROUP INC COM 91324P102 74,814 300,000 SH   SOLE   300,000 0 0
VERTEX PHARMACEUTICALS INC COM 92532F100 29,744 125,000 SH   SOLE   125,000 0 0
WEST PHARMACEUTICAL SVSC INC COM 955306105 10,810 71,000 SH   SOLE   71,000 0 0
XENON PHARMACEUTICALS INC COM 98420N105 5,670 500,000 SH   SOLE   500,000 0 0
ZAI LAB LTD ADR 98887Q104 38,610 750,000 SH   SOLE   750,000 0 0
ZOGENIX INC COM NEW 98978L204 9,892 400,000 SH   SOLE   400,000 0 0