DEERFIELD MANAGEMENT COMPANY, L.P. Quant / Systematic

Location: New York, NY

CIK: 0001009258 · Show all filings

Period: Q4 2017 (← Previous) (Next →)

Filing Date: Feb 14, 2018

Total Value: $2.541B (84.8% shares, 15.2% debt)

Holdings (98)

MALLINCKRODT PUB LTD CO 5.1%
Value $130M Shares 5,766,000 Est. Cost Unrealized
MYLAN N V 4.2%
Value $106M Shares 2,503,611 Est. Cost Unrealized
HORIZON PHARMA PLC 3.6%
Value $92.59M Shares 6,341,894 Est. Cost Unrealized
DXCM DEXCOM INC 3.5%
Value $88.05M Shares 1,534,211 Est. Cost Unrealized
GKOS GLAUKOS CORP 3.4%
Value $85.75M Shares 3,343,045 Est. Cost Unrealized
AVEXIS INC 3.3%
Value $83.64M Shares 755,798 Est. Cost Unrealized
ANAB ANAPTYSBIO INC 3.2%
Value $81.83M Shares 812,484 Est. Cost Unrealized
HORIZON PHARMA INVT LTD 2.7%
Value $68.89M Shares 74,100,000 Est. Cost Unrealized
LANNET INC 2.5%
Value $63.04M Shares 2,717,287 Est. Cost Unrealized
MCK MCKESSON CORP 2.4%
Value $61.57M Shares 394,801 Est. Cost Unrealized
ACRS ACLARIS THERAPEUTICS INC 2.2%
Value $55.08M Shares 2,233,416 Est. Cost Unrealized
EDIT EDITAS MEDICINE INC 2.1%
Value $52.53M Shares 1,709,400 Est. Cost Unrealized
DBV TECHNOLOGIES S A 2.0%
Value $51.79M Shares 2,105,180 Est. Cost Unrealized
ARENA PHARMACEUTICALS INC 2.0%
Value $51.72M Shares 1,522,566 Est. Cost Unrealized
PODD INSULET CORP 1.9%
Value $48.69M Shares 705,573 Est. Cost Unrealized
ISIS PHARMACEUTICALS INC DEL 1.9%
Value $48.39M Shares 45,700,000 Est. Cost Unrealized
INTERSECT ENT INC 1.9%
Value $47.57M Shares 1,468,341 Est. Cost Unrealized
KEMPHARM INC 1.8%
Value $45.75M Shares 75,000,000 Est. Cost Unrealized
GW PHARMACEUTICALS PLC 1.8%
Value $44.77M Shares 339,180 Est. Cost Unrealized
MOH MOLINA HEALTHCARE INC 1.7%
Value $43.55M Shares 568,000 Est. Cost Unrealized
MYOKARDIA INC 1.7%
Value $42.13M Shares 1,000,680 Est. Cost Unrealized
TRINITY BIOTECH INVT LTD 1.6%
Value $39.49M Shares 48,000,000 Est. Cost Unrealized
AUDENTES THERAPEUTICS INC 1.5%
Value $37.2M Shares 1,190,516 Est. Cost Unrealized
ENDOLOGIX INC 1.4%
Value $36.11M Shares 40,500,000 Est. Cost Unrealized
REVANCE THERAPEUTICS INC 1.4%
Value $35.75M Shares 1,000,000 Est. Cost Unrealized
BCRX BIOCRYST PHARMACEUTICALS 1.4%
Value $35.42M Shares 7,213,393 Est. Cost Unrealized
SEM SELECT MED HLDGS CORP 1.3%
Value $32.79M Shares 1,858,000 Est. Cost Unrealized
AVADEL PHARMACEUTICALS PLC 1.3%
Value $32.44M Shares 3,955,494 Est. Cost Unrealized
ASND ASCENDIS PHARMA A S 1.2%
Value $31.61M Shares 789,000 Est. Cost Unrealized
DVA DAVITA INC 1.2%
Value $30.71M Shares 425,000 Est. Cost Unrealized
BLUEPRINT MEDICINES CORP 1.2%
Value $29.86M Shares 396,000 Est. Cost Unrealized
ELV ANTHEM INC 1.2%
Value $29.25M Shares 130,000 Est. Cost Unrealized
AERIE PHARMACEUTICALS INC 1.1%
Value $28.92M Shares 484,055 Est. Cost Unrealized
NEVRO CORP 1.1%
Value $28.89M Shares 27,600,000 Est. Cost Unrealized
INTERCEPT PHARMACEUTICALS IN 1.1%
Value $28.88M Shares 36,000,000 Est. Cost Unrealized
NTRA NATERA INC 1.0%
Value $26.26M Shares 2,920,856 Est. Cost Unrealized
ACCELERON PHARMA INC 1.0%
Value $26.1M Shares 615,000 Est. Cost Unrealized
ACHC ACADIA HEALTHCARE COMPANY IN 1.0%
Value $24.18M Shares 741,016 Est. Cost Unrealized
ENVISION HEALTHCARE CORP 0.9%
Value $23.36M Shares 676,000 Est. Cost Unrealized
ARGX ARGENX SE 0.9%
Value $23.11M Shares 365,961 Est. Cost Unrealized
K2M GROUP HLDGS INC 0.9%
Value $22.85M Shares 20,000,000 Est. Cost Unrealized
DEPOMED INC 0.9%
Value $22.78M Shares 27,019,000 Est. Cost Unrealized
AMAG PHARMACEUTICALS INC 0.9%
Value $21.76M Shares 25,250,000 Est. Cost Unrealized
IMMUNOMEDICS INC 0.8%
Value $21.02M Shares 1,300,448 Est. Cost Unrealized
OXFORD IMMUNOTEC GLOBAL PLC 0.7%
Value $17.66M Shares 1,264,000 Est. Cost Unrealized
EHTH EHEALTH INC 0.7%
Value $17.61M Shares 1,013,916 Est. Cost Unrealized
RECRO PHARMA INC 0.7%
Value $17.59M Shares 1,901,685 Est. Cost Unrealized
RYTM RHYTHM PHARMACEUTICALS INC 0.7%
Value $16.91M Shares 582,010 Est. Cost Unrealized
AAC HLDGS INC 0.7%
Value $16.86M Shares 1,873,276 Est. Cost Unrealized
ARDX ARDELYX INC 0.6%
Value $16.3M Shares 2,469,580 Est. Cost Unrealized
CTMX CYTOMX THERAPEUTICS INC 0.6%
Value $15.9M Shares 753,322 Est. Cost Unrealized
INVITAE CORP 0.6%
Value $15.64M Shares 1,723,000 Est. Cost Unrealized
AGIO AGIOS PHARMACEUTICALS INC 0.6%
Value $15.04M Shares 262,984 Est. Cost Unrealized
UHS UNIVERSAL HLTH SVCS INC 0.6%
Value $14.96M Shares 132,000 Est. Cost Unrealized
PORTOLA PHARMACEUTICALS INC 0.6%
Value $14.53M Shares 298,545 Est. Cost Unrealized
BLUEBIRD BIO INC 0.6%
Value $14.25M Shares 80,000 Est. Cost Unrealized
LOXO ONCOLOGY INC 0.6%
Value $14.23M Shares 169,000 Est. Cost Unrealized
AEGERION PHARMACEUTICALS INC 0.5%
Value $13.2M Shares 16,600,000 Est. Cost Unrealized
EPIZYME INC 0.5%
Value $12.67M Shares 1,009,526 Est. Cost Unrealized
SYROS PHARMACEUTICALS INC 0.5%
Value $12.35M Shares 1,268,945 Est. Cost Unrealized
GLPG GALAPAGOS NV 0.5%
Value $12.19M Shares 130,000 Est. Cost Unrealized
XNCR XENCOR INC 0.5%
Value $11.44M Shares 522,000 Est. Cost Unrealized
APLS APELLIS PHARMACEUTICALS INC 0.4%
Value $11.13M Shares 513,000 Est. Cost Unrealized
WVE WAVE LIFE SCIENCES LTD 0.4%
Value $11.04M Shares 314,674 Est. Cost Unrealized
REATA PHARMACEUTICALS INC 0.4%
Value $11.04M Shares 390,000 Est. Cost Unrealized
WALGREENS BOOTS ALLIANCE INC 0.4%
Value $10.53M Shares 145,000 Est. Cost Unrealized
ALLSCRIPTS HEALTHCARE SOLUTN 0.4%
Value $10.35M Shares 9,671,000 Est. Cost Unrealized
ALPINE IMMUNE SCIENCES INC 0.4%
Value $10.23M Shares 913,100 Est. Cost Unrealized
FIVE PRIME THERAPEUTICS INC 0.4%
Value $9.88M Shares 450,728 Est. Cost Unrealized
BIOHAVEN PHARMACTL HLDG CO L 0.4%
Value $9.2M Shares 341,000 Est. Cost Unrealized
BIOSCRIP INC 0.4%
Value $9.091M Shares 3,124,000 Est. Cost Unrealized
RGNX REGENXBIO INC 0.3%
Value $8.522M Shares 256,300 Est. Cost Unrealized
SYNLOGIC INC 0.3%
Value $8.246M Shares 850,143 Est. Cost Unrealized
ALIMERA SCIENCES INC 0.3%
Value $8.05M Shares 6,052,935 Est. Cost Unrealized
DECIPHERA PHARMACEUTICALS IN 0.3%
Value $7.617M Shares 336,009 Est. Cost Unrealized
NEOS THERAPEUTICS INC 0.3%
Value $7.607M Shares 745,767 Est. Cost Unrealized
INVUITY INC 0.3%
Value $7.299M Shares 1,177,229 Est. Cost Unrealized
MIRATI THERAPEUTICS INC 0.3%
Value $6.844M Shares 375,000 Est. Cost Unrealized
MCK MCKESSON CORP 0.3%
Value $6.737M Shares 43,200 Est. Cost Unrealized
SIERRA ONCOLOGY INC 0.3%
Value $6.569M Shares 1,761,092 Est. Cost Unrealized
ALLENA PHARMACEUTICALS INC 0.2%
Value $6.087M Shares 605,100 Est. Cost Unrealized
STEADYMED LTD 0.2%
Value $5.25M Shares 1,418,787 Est. Cost Unrealized
PTGX PROTAGONIST THERAPEUTICS INC 0.2%
Value $4.68M Shares 225,000 Est. Cost Unrealized
EIGER BIOPHARMACEUTICALS INC 0.2%
Value $4.185M Shares 300,000 Est. Cost Unrealized
IFRX INFLARX NV 0.1%
Value $3.666M Shares 175,000 Est. Cost Unrealized
TESARO INC 0.1%
Value $3.555M Shares 42,893 Est. Cost Unrealized
FOAMIX PHARMACEUTICALS LTD 0.1%
Value $3.011M Shares 501,000 Est. Cost Unrealized
OBALON THERAPEUTICS INC 0.1%
Value $2.95M Shares 446,284 Est. Cost Unrealized
ARALEZ PHARMACEUTICALS INC 0.1%
Value $2.335M Shares 1,644,583 Est. Cost Unrealized
PROTEON THERAPEUTICS INC 0.1%
Value $2.327M Shares 1,224,899 Est. Cost Unrealized
PFENEX INC 0.1%
Value $2.208M Shares 830,216 Est. Cost Unrealized
VYGR VOYAGER THERAPEUTICS INC 0.1%
Value $1.953M Shares 117,647 Est. Cost Unrealized
MDXG MIMEDX GROUP INC 0.1%
Value $1.892M Shares 150,000 Est. Cost Unrealized
ARSANIS INC 0.1%
Value $1.679M Shares 131,548 Est. Cost Unrealized
KIDS ORTHOPEDIATRICS CORP 0.0%
Value $1.118M Shares 58,247 Est. Cost Unrealized
AKARI THERAPEUTICS PLC 0.0%
Value $1.082M Shares 249,785 Est. Cost Unrealized
NUCANA PLC 0.0%
Value $835K Shares 82,637 Est. Cost Unrealized
RA PHARMACEUTICALS INC 0.0%
Value $673K Shares 79,150 Est. Cost Unrealized