DEERFIELD MANAGEMENT COMPANY, L.P. Quant / Systematic

Location: New York, NY

CIK: 0001009258 · Show all filings

Period: Q2 2015 (← Previous) (Next →)

Filing Date: Aug 14, 2015

Total Value: $3.002B (87.4% shares, 12.6% debt)

Holdings (120)

HORIZON PHARMA PLC 14.2%
Value $426M Shares 12,259,875 Est. Cost Unrealized
ALLSCRIPTS HEALTHCARE SOLUTN 3.4%
Value $104M Shares 100,750,000 Est. Cost Unrealized
FLAMEL TECHNOLOGIES SA 2.9%
Value $86.3M Shares 4,072,809 Est. Cost Unrealized
NXSTAGE MEDICAL INC 2.7%
Value $82.47M Shares 5,773,050 Est. Cost Unrealized
ARRAY BIOPHARMA INC 2.3%
Value $68.71M Shares 9,529,361 Est. Cost Unrealized
DYAX CORP 2.2%
Value $65.81M Shares 2,483,507 Est. Cost Unrealized
VNDA VANDA PHARMACEUTICALS INC 2.0%
Value $60.71M Shares 4,784,157 Est. Cost Unrealized
MYLAN N V 2.0%
Value $59.11M Shares 871,000 Est. Cost Unrealized
GLAXOSMITHKLINE PLC 1.9%
Value $57.34M Shares 1,376,722 Est. Cost Unrealized
ARRAY BIOPHARMA INC 1.9%
Value $56.94M Shares 45,000,000 Est. Cost Unrealized
NIVALIS THERAPEUTICS INC 1.9%
Value $56.55M Shares 3,732,412 Est. Cost Unrealized
BLUEBIRD BIO INC 1.8%
Value $55.02M Shares 326,783 Est. Cost Unrealized
WALGREENS BOOTS ALLIANCE INC 1.8%
Value $54.76M Shares 648,501 Est. Cost Unrealized
DVA DAVITA HEALTHCARE PARTNERS I 1.7%
Value $50.54M Shares 636,000 Est. Cost Unrealized
AETNA INC NEW 1.6%
Value $47.13M Shares 369,739 Est. Cost Unrealized
UNIVERSAL AMERN CORP NEW 1.5%
Value $44.63M Shares 4,409,703 Est. Cost Unrealized
GW PHARMACEUTICALS PLC 1.5%
Value $44.46M Shares 361,953 Est. Cost Unrealized
CRL CHARLES RIV LABS INTL INC 1.4%
Value $43.01M Shares 611,436 Est. Cost Unrealized
EHTH EHEALTH INC 1.4%
Value $41.43M Shares 3,264,588 Est. Cost Unrealized
ENDOLOGIX INC 1.3%
Value $39.78M Shares 40,941,000 Est. Cost Unrealized
AERIE PHARMACEUTICALS INC 1.3%
Value $39.04M Shares 2,211,644 Est. Cost Unrealized
ANTARES PHARMA INC 1.3%
Value $38.25M Shares 18,389,789 Est. Cost Unrealized
TEVA TEVA PHARMACEUTICAL INDS LTD 1.3%
Value $38.18M Shares 646,000 Est. Cost Unrealized
SPARK THERAPEUTICS INC 1.3%
Value $38.04M Shares 631,192 Est. Cost Unrealized
SPECTRANETICS CORP 1.3%
Value $37.99M Shares 36,901,000 Est. Cost Unrealized
ENDOLOGIX INC 1.3%
Value $37.58M Shares 2,449,897 Est. Cost Unrealized
ZAFGEN INC 1.2%
Value $34.89M Shares 1,007,614 Est. Cost Unrealized
ADEPTUS HEALTH INC 1.2%
Value $34.58M Shares 364,000 Est. Cost Unrealized
HEARTWARE INTL INC 1.1%
Value $33.22M Shares 31,264,000 Est. Cost Unrealized
GLPG GALAPAGOS NV 1.1%
Value $33.09M Shares 642,608 Est. Cost Unrealized
GENOMIC HEALTH INC 1.1%
Value $32.88M Shares 1,183,000 Est. Cost Unrealized
ARENA PHARMACEUTICALS INC 1.1%
Value $32.4M Shares 6,983,710 Est. Cost Unrealized
XNCR XENCOR INC 1.0%
Value $31M Shares 1,411,000 Est. Cost Unrealized
FLUIDIGM CORP DEL 1.0%
Value $30.95M Shares 35,000,000 Est. Cost Unrealized
MCK MCKESSON CORP 1.0%
Value $30.57M Shares 136,000 Est. Cost Unrealized
EW EDWARDS LIFESCIENCES CORP 1.0%
Value $30.17M Shares 211,850 Est. Cost Unrealized
ZELTIQ AESTHETICS INC 1.0%
Value $29.95M Shares 1,016,453 Est. Cost Unrealized
HEALTHWAYS INC 1.0%
Value $29.53M Shares 2,465,042 Est. Cost Unrealized
ENDOCHOICE HLDGS INC 1.0%
Value $29.39M Shares 1,797,709 Est. Cost Unrealized
INFIQ INFINITY PHARMACEUTICALS INC 0.9%
Value $26.99M Shares 2,465,129 Est. Cost Unrealized
INGN INOGEN INC 0.9%
Value $26.84M Shares 601,772 Est. Cost Unrealized
LOXO ONCOLOGY INC 0.9%
Value $26.15M Shares 1,450,151 Est. Cost Unrealized
HEALTHWAYS INC 0.9%
Value $25.93M Shares 27,915,000 Est. Cost Unrealized
BSX BOSTON SCIENTIFIC CORP 0.8%
Value $24.88M Shares 1,405,348 Est. Cost Unrealized
WEBMD HEALTH CORP 0.8%
Value $24.64M Shares 23,000,000 Est. Cost Unrealized
ACCURAY INC 0.8%
Value $24.57M Shares 24,100,000 Est. Cost Unrealized
ELV ANTHEM INC 0.8%
Value $23.11M Shares 140,806 Est. Cost Unrealized
PROTEON THERAPEUTICS INC 0.8%
Value $22.6M Shares 1,265,343 Est. Cost Unrealized
SAGE THERAPEUTICS INC 0.7%
Value $22.27M Shares 305,000 Est. Cost Unrealized
INSM INSMED INC 0.7%
Value $21.77M Shares 891,546 Est. Cost Unrealized
NUVASIVE INC 0.7%
Value $21.33M Shares 450,272 Est. Cost Unrealized
SYNERON MEDICAL LTD 0.7%
Value $20.96M Shares 1,973,945 Est. Cost Unrealized
ALIMERA SCIENCES INC 0.7%
Value $20.38M Shares 4,420,580 Est. Cost Unrealized
KEMPHARM INC 0.7%
Value $19.92M Shares 1,084,443 Est. Cost Unrealized
NANOSTRING TECHNOLOGIES INC 0.6%
Value $19.01M Shares 1,232,696 Est. Cost Unrealized
RITE AID CORP 0.5%
Value $15.78M Shares 1,890,000 Est. Cost Unrealized
IMPRIVATA INC 0.5%
Value $15.68M Shares 958,152 Est. Cost Unrealized
OM2 ORTHOFIX INTL N V 0.5%
Value $15.16M Shares 457,699 Est. Cost Unrealized
AKORN INC 0.5%
Value $15.05M Shares 344,667 Est. Cost Unrealized
EXEL EXELIXIS INC 0.5%
Value $15.04M Shares 4,000,000 Est. Cost Unrealized
PORTOLA PHARMACEUTICALS INC 0.5%
Value $15.02M Shares 329,837 Est. Cost Unrealized
PCRX PACIRA PHARMACEUTICALS INC 0.5%
Value $14.99M Shares 212,000 Est. Cost Unrealized
HUM HUMANA INC 0.5%
Value $14.44M Shares 75,500 Est. Cost Unrealized
TRUP TRUPANION INC 0.5%
Value $14.13M Shares 1,715,211 Est. Cost Unrealized
GENNQ GENESIS HEALTHCARE INC 0.5%
Value $13.99M Shares 2,119,616 Est. Cost Unrealized
AAC HLDGS INC 0.4%
Value $13.2M Shares 303,027 Est. Cost Unrealized
MIRATI THERAPEUTICS INC 0.4%
Value $12.51M Shares 397,660 Est. Cost Unrealized
TONIX PHARMACEUTICALS HLDG C 0.4%
Value $11.8M Shares 1,315,551 Est. Cost Unrealized
AXGN AXOGEN INC 0.4%
Value $11.7M Shares 3,726,439 Est. Cost Unrealized
IMMUNOMEDICS INC 0.3%
Value $10.17M Shares 2,505,872 Est. Cost Unrealized
JUNO THERAPEUTICS INC 0.3%
Value $9.767M Shares 183,149 Est. Cost Unrealized
FOAMIX PHARMACEUTICALS LTD 0.3%
Value $9.727M Shares 948,934 Est. Cost Unrealized
CATABASIS PHARMACEUTICALS IN 0.3%
Value $9.012M Shares 738,055 Est. Cost Unrealized
ALLIQUA BIOMEDICAL INC 0.3%
Value $8.849M Shares 1,679,111 Est. Cost Unrealized
DERMIRA INC 0.3%
Value $8.712M Shares 496,387 Est. Cost Unrealized
PACB PACIFIC BIOSCIENCES CALIF IN 0.3%
Value $8.559M Shares 1,485,861 Est. Cost Unrealized
ATYR PHARMA INC 0.3%
Value $8.548M Shares 461,530 Est. Cost Unrealized
AMPH AMPHASTAR PHARMACEUTICALS IN 0.3%
Value $7.885M Shares 448,532 Est. Cost Unrealized
ST JUDE MED INC 0.3%
Value $7.871M Shares 107,719 Est. Cost Unrealized
OXFORD IMMUNOTEC GLOBAL PLC 0.3%
Value $7.773M Shares 561,226 Est. Cost Unrealized
GENOCEA BIOSCIENCES INC 0.3%
Value $7.747M Shares 564,257 Est. Cost Unrealized
RIGEL PHARMACEUTICALS INC 0.3%
Value $7.697M Shares 2,397,855 Est. Cost Unrealized
RELYPSA INC 0.2%
Value $7.445M Shares 225,000 Est. Cost Unrealized
ALCOBRA LTD 0.2%
Value $7.118M Shares 1,088,449 Est. Cost Unrealized
DERMA SCIENCES INC 0.2%
Value $6.937M Shares 968,881 Est. Cost Unrealized
ZS PHARMA INC 0.2%
Value $6.915M Shares 132,000 Est. Cost Unrealized
ALPHATEC HOLDINGS INC 0.2%
Value $6.876M Shares 4,982,738 Est. Cost Unrealized
STEADYMED LTD 0.2%
Value $6.744M Shares 1,267,577 Est. Cost Unrealized
SCYNEXIS INC 0.2%
Value $6.09M Shares 692,781 Est. Cost Unrealized
BIOTELEMETRY INC 0.2%
Value $6.076M Shares 644,300 Est. Cost Unrealized
TRACON PHARMACEUTICALS INC 0.2%
Value $5.495M Shares 485,000 Est. Cost Unrealized
ALDX ALDEYRA THERAPEUTICS INC 0.2%
Value $5.359M Shares 690,538 Est. Cost Unrealized
STREAMLINE HEALTH SOLUTIONS 0.2%
Value $5.104M Shares 1,822,759 Est. Cost Unrealized
DBV TECHNOLOGIES S A 0.2%
Value $4.773M Shares 160,259 Est. Cost Unrealized
TRINITY BIOTECH PLC 0.2%
Value $4.741M Shares 262,492 Est. Cost Unrealized
BIOTIE THERAPIES OYJ 0.1%
Value $4.385M Shares 219,558 Est. Cost Unrealized
VCYT VERACYTE INC 0.1%
Value $4.269M Shares 383,256 Est. Cost Unrealized
CAS MED SYS INC 0.1%
Value $4.096M Shares 3,200,000 Est. Cost Unrealized
IART INTEGRA LIFESCIENCES HLDGS C 0.1%
Value $4.006M Shares 59,468 Est. Cost Unrealized
TRILLIUM THERAPEUTICS INC 0.1%
Value $3.76M Shares 172,307 Est. Cost Unrealized
PRQR PROQR THRAPEUTICS N V 0.1%
Value $3.491M Shares 209,398 Est. Cost Unrealized
MAZOR ROBOTICS LTD 0.1%
Value $3.474M Shares 261,000 Est. Cost Unrealized
CIDARA THERAPEUTICS INC 0.1%
Value $3.331M Shares 237,583 Est. Cost Unrealized
INVUITY INC 0.1%
Value $3.086M Shares 218,523 Est. Cost Unrealized
DISCOVERY LABORATORIES INC N 0.1%
Value $2.489M Shares 3,659,700 Est. Cost Unrealized
INVITAE CORP 0.1%
Value $2.48M Shares 166,666 Est. Cost Unrealized
BOVIE MEDICAL CORP 0.1%
Value $1.92M Shares 688,229 Est. Cost Unrealized
KINDRED BIOSCIENCES INC 0.1%
Value $1.904M Shares 279,204 Est. Cost Unrealized
PALATIN TECHNOLOGIES INC 0.1%
Value $1.78M Shares 2,000,000 Est. Cost Unrealized
ESPR ESPERION THERAPEUTICS INC NE 0.1%
Value $1.709M Shares 20,900 Est. Cost Unrealized
CDNA CAREDX INC 0.0%
Value $1.489M Shares 229,000 Est. Cost Unrealized
KINDRED HEALTHCARE INC 0.0%
Value $1.423M Shares 70,114 Est. Cost Unrealized
CORSICANTO LTD 0.0%
Value $1.084M Shares 1,000,000 Est. Cost Unrealized
TRANSENTERIX INC 0.0%
Value $884K Shares 294,669 Est. Cost Unrealized
IRWD IRONWOOD PHARMACEUTICALS INC 0.0%
Value $768K Shares 63,700 Est. Cost Unrealized
PRGO PERRIGO CO PLC 0.0%
Value $647K Shares 3,500 Est. Cost Unrealized
POZEN INC 0.0%
Value $460K Shares 44,583 Est. Cost Unrealized
PSIVIDA CORP 0.0%
Value $388K Shares 102,823 Est. Cost Unrealized
RECEPTOS INC 0.0%
Value $380K Shares 2,000 Est. Cost Unrealized
ASND ASCENDIS PHARMA A S 0.0%
Value $369K Shares 20,859 Est. Cost Unrealized