DEERFIELD MANAGEMENT COMPANY, L.P. Quant / Systematic

CIK: 0001009258 · Show all filings

Period: Q4 2017 (← Previous) (Next →)

Filing Date: Feb 14, 2018

Total Value ($000): $2,540,877 (84.8% shares, 15.2% debt)

Holdings (98)

MALLINCKRODT PUB LTD CO 5.1%
Value ($000) $130,081 Shares 5,766,000 Est. Cost $29.20 Unrealized
MYLAN N V 4.2%
Value ($000) $105,928 Shares 2,503,611 Est. Cost $38.77 Unrealized
HORIZON PHARMA PLC 3.6%
Value ($000) $92,592 Shares 6,341,894 Est. Cost $15.96 Unrealized
DXCM DEXCOM INC 3.5%
Value ($000) $88,048 Shares 1,534,211 Est. Cost $17.53 Unrealized -25.9%
GKOS GLAUKOS CORP 3.4%
Value ($000) $85,749 Shares 3,343,045 Est. Cost $36.26 Unrealized -17.9%
AVEXIS INC 3.3%
Value ($000) $83,644 Shares 755,798 Est. Cost $28.94 Unrealized
ANAB ANAPTYSBIO INC 3.2%
Value ($000) $81,833 Shares 812,484 Est. Cost $24.52 Unrealized +200.2%
HORIZON PHARMA INVT LTD 2.7%
Value ($000) $68,886 Shares 74,100,000 Est. Cost $0.86 Unrealized
LANNET INC 2.5%
Value ($000) $63,041 Shares 2,717,287 Est. Cost $22.58 Unrealized
MCK MCKESSON CORP 2.4%
Value ($000) $61,569 Shares 394,801 Est. Cost $142.50 Unrealized -2.5%
ACRS ACLARIS THERAPEUTICS INC 2.2%
Value ($000) $55,076 Shares 2,233,416 Est. Cost $25.64 Unrealized -5.0%
EDIT EDITAS MEDICINE INC 2.1%
Value ($000) $52,530 Shares 1,709,400 Est. Cost $26.29 Unrealized -4.2%
DBV TECHNOLOGIES S A 2.0%
Value ($000) $51,787 Shares 2,105,180 Est. Cost $27.10 Unrealized
ARENA PHARMACEUTICALS INC 2.0%
Value ($000) $51,722 Shares 1,522,566 Est. Cost $25.64 Unrealized
PODD INSULET CORP 1.9%
Value ($000) $48,685 Shares 705,573 Est. Cost $57.86 Unrealized +13.4%
ISIS PHARMACEUTICALS INC DEL 1.9%
Value ($000) $48,392 Shares 45,700,000 Est. Cost $1.00 Unrealized
INTERSECT ENT INC 1.9%
Value ($000) $47,574 Shares 1,468,341 Est. Cost $28.78 Unrealized
KEMPHARM INC 1.8%
Value ($000) $45,750 Shares 75,000,000 Est. Cost $0.61 Unrealized
GW PHARMACEUTICALS PLC 1.8%
Value ($000) $44,775 Shares 339,180 Est. Cost $85.11 Unrealized
MOH MOLINA HEALTHCARE INC 1.7%
Value ($000) $43,554 Shares 568,000 Est. Cost $67.97 Unrealized +6.2%
MYOKARDIA INC 1.7%
Value ($000) $42,129 Shares 1,000,680 Est. Cost $37.16 Unrealized
TRINITY BIOTECH INVT LTD 1.6%
Value ($000) $39,492 Shares 48,000,000 Est. Cost $0.92 Unrealized
AUDENTES THERAPEUTICS INC 1.5%
Value ($000) $37,204 Shares 1,190,516 Est. Cost $18.06 Unrealized
ENDOLOGIX INC 1.4%
Value ($000) $36,112 Shares 40,500,000 Est. Cost $0.87 Unrealized
REVANCE THERAPEUTICS INC 1.4%
Value ($000) $35,750 Shares 1,000,000 Est. Cost $35.75 Unrealized
BCRX BIOCRYST PHARMACEUTICALS 1.4%
Value ($000) $35,418 Shares 7,213,393 Est. Cost $4.61 Unrealized +5.1%
SEM SELECT MED HLDGS CORP 1.3%
Value ($000) $32,794 Shares 1,858,000 Est. Cost $8.18 Unrealized +7.6%
AVADEL PHARMACEUTICALS PLC 1.3%
Value ($000) $32,435 Shares 3,955,494 Est. Cost $9.57 Unrealized
ASND ASCENDIS PHARMA A S 1.2%
Value ($000) $31,607 Shares 789,000 Est. Cost $28.35 Unrealized
DVA DAVITA INC 1.2%
Value ($000) $30,706 Shares 425,000 Est. Cost $61.54 Unrealized 0.0%
BLUEPRINT MEDICINES CORP 1.2%
Value ($000) $29,862 Shares 396,000 Est. Cost $51.23 Unrealized
ELV ANTHEM INC 1.2%
Value ($000) $29,251 Shares 130,000 Est. Cost $191.44 Unrealized 0.0%
AERIE PHARMACEUTICALS INC 1.1%
Value ($000) $28,922 Shares 484,055 Est. Cost $26.12 Unrealized
NEVRO CORP 1.1%
Value ($000) $28,890 Shares 27,600,000 Est. Cost $1.07 Unrealized
INTERCEPT PHARMACEUTICALS IN 1.1%
Value ($000) $28,879 Shares 36,000,000 Est. Cost $0.85 Unrealized
NTRA NATERA INC 1.0%
Value ($000) $26,258 Shares 2,920,856 Est. Cost $11.02 Unrealized -1.9%
ACCELERON PHARMA INC 1.0%
Value ($000) $26,101 Shares 615,000 Est. Cost $37.32 Unrealized
ACHC ACADIA HEALTHCARE COMPANY IN 1.0%
Value ($000) $24,179 Shares 741,016 Est. Cost $34.65 Unrealized 0.0%
ENVISION HEALTHCARE CORP 0.9%
Value ($000) $23,363 Shares 676,000 Est. Cost $34.56 Unrealized
ARGX ARGENX SE 0.9%
Value ($000) $23,107 Shares 365,961 Est. Cost $21.21 Unrealized
K2M GROUP HLDGS INC 0.9%
Value ($000) $22,847 Shares 20,000,000 Est. Cost $1.22 Unrealized
DEPOMED INC 0.9%
Value ($000) $22,776 Shares 27,019,000 Est. Cost $0.84 Unrealized
AMAG PHARMACEUTICALS INC 0.9%
Value ($000) $21,759 Shares 25,250,000 Est. Cost $0.93 Unrealized
IMMUNOMEDICS INC 0.8%
Value ($000) $21,015 Shares 1,300,448 Est. Cost $15.18 Unrealized
OXFORD IMMUNOTEC GLOBAL PLC 0.7%
Value ($000) $17,658 Shares 1,264,000 Est. Cost $14.90 Unrealized
EHTH EHEALTH INC 0.7%
Value ($000) $17,612 Shares 1,013,916 Est. Cost $26.51 Unrealized -15.6%
RECRO PHARMA INC 0.7%
Value ($000) $17,591 Shares 1,901,685 Est. Cost $8.06 Unrealized
RYTM RHYTHM PHARMACEUTICALS INC 0.7%
Value ($000) $16,913 Shares 582,010 Est. Cost $26.40 Unrealized 0.0%
AAC HLDGS INC 0.7%
Value ($000) $16,859 Shares 1,873,276 Est. Cost $21.45 Unrealized
ARDX ARDELYX INC 0.6%
Value ($000) $16,299 Shares 2,469,580 Est. Cost $8.97 Unrealized -33.9%
CTMX CYTOMX THERAPEUTICS INC 0.6%
Value ($000) $15,903 Shares 753,322 Est. Cost $15.82 Unrealized +31.0%
INVITAE CORP 0.6%
Value ($000) $15,645 Shares 1,723,000 Est. Cost $9.23 Unrealized
AGIO AGIOS PHARMACEUTICALS INC 0.6%
Value ($000) $15,035 Shares 262,984 Est. Cost $60.66 Unrealized +3.7%
UHS UNIVERSAL HLTH SVCS INC 0.6%
Value ($000) $14,962 Shares 132,000 Est. Cost $103.09 Unrealized 0.0%
PORTOLA PHARMACEUTICALS INC 0.6%
Value ($000) $14,533 Shares 298,545 Est. Cost $23.81 Unrealized
BLUEBIRD BIO INC 0.6%
Value ($000) $14,248 Shares 80,000 Est. Cost $178.10 Unrealized
LOXO ONCOLOGY INC 0.6%
Value ($000) $14,226 Shares 169,000 Est. Cost $32.43 Unrealized
AEGERION PHARMACEUTICALS INC 0.5%
Value ($000) $13,195 Shares 16,600,000 Est. Cost $0.81 Unrealized
EPIZYME INC 0.5%
Value ($000) $12,670 Shares 1,009,526 Est. Cost $12.28 Unrealized
SYROS PHARMACEUTICALS INC 0.5%
Value ($000) $12,347 Shares 1,268,945 Est. Cost $18.15 Unrealized
GLPG GALAPAGOS NV 0.5%
Value ($000) $12,189 Shares 130,000 Est. Cost $49.57 Unrealized
XNCR XENCOR INC 0.5%
Value ($000) $11,442 Shares 522,000 Est. Cost $13.55 Unrealized +60.0%
APLS APELLIS PHARMACEUTICALS INC 0.4%
Value ($000) $11,132 Shares 513,000 Est. Cost $14.72 Unrealized 0.0%
WVE WAVE LIFE SCIENCES LTD 0.4%
Value ($000) $11,045 Shares 314,674 Est. Cost $28.49 Unrealized +2.3%
REATA PHARMACEUTICALS INC 0.4%
Value ($000) $11,045 Shares 390,000 Est. Cost $29.67 Unrealized
WALGREENS BOOTS ALLIANCE INC 0.4%
Value ($000) $10,530 Shares 145,000 Est. Cost $72.62 Unrealized
ALLSCRIPTS HEALTHCARE SOLUTN 0.4%
Value ($000) $10,351 Shares 9,671,000 Est. Cost $1.00 Unrealized
ALPINE IMMUNE SCIENCES INC 0.4%
Value ($000) $10,227 Shares 913,100 Est. Cost $11.60 Unrealized
FIVE PRIME THERAPEUTICS INC 0.4%
Value ($000) $9,880 Shares 450,728 Est. Cost $21.92 Unrealized
BIOHAVEN PHARMACTL HLDG CO L 0.4%
Value ($000) $9,200 Shares 341,000 Est. Cost $26.02 Unrealized
BIOSCRIP INC 0.4%
Value ($000) $9,091 Shares 3,124,000 Est. Cost $2.78 Unrealized
RGNX REGENXBIO INC 0.3%
Value ($000) $8,522 Shares 256,300 Est. Cost $30.13 Unrealized 0.0%
SYNLOGIC INC 0.3%
Value ($000) $8,246 Shares 850,143 Est. Cost $19.01 Unrealized
ALIMERA SCIENCES INC 0.3%
Value ($000) $8,050 Shares 6,052,935 Est. Cost $4.42 Unrealized
DECIPHERA PHARMACEUTICALS IN 0.3%
Value ($000) $7,617 Shares 336,009 Est. Cost $19.11 Unrealized
NEOS THERAPEUTICS INC 0.3%
Value ($000) $7,607 Shares 745,767 Est. Cost $8.74 Unrealized
INVUITY INC 0.3%
Value ($000) $7,299 Shares 1,177,229 Est. Cost $8.46 Unrealized
MIRATI THERAPEUTICS INC 0.3%
Value ($000) $6,844 Shares 375,000 Est. Cost $18.25 Unrealized
MCK MCKESSON CORP 0.3%
Value ($000) $6,737 Shares 43,200 Est. Cost $142.50 Unrealized -2.5%
SIERRA ONCOLOGY INC 0.3%
Value ($000) $6,569 Shares 1,761,092 Est. Cost $1.53 Unrealized
ALLENA PHARMACEUTICALS INC 0.2%
Value ($000) $6,087 Shares 605,100 Est. Cost $10.06 Unrealized
STEADYMED LTD 0.2%
Value ($000) $5,250 Shares 1,418,787 Est. Cost $7.13 Unrealized
PTGX PROTAGONIST THERAPEUTICS INC 0.2%
Value ($000) $4,680 Shares 225,000 Est. Cost $17.74 Unrealized 0.0%
EIGER BIOPHARMACEUTICALS INC 0.2%
Value ($000) $4,185 Shares 300,000 Est. Cost $13.95 Unrealized
IFRX INFLARX NV 0.1%
Value ($000) $3,666 Shares 175,000 Est. Cost $17.97 Unrealized 0.0%
TESARO INC 0.1%
Value ($000) $3,555 Shares 42,893 Est. Cost $82.88 Unrealized
FOAMIX PHARMACEUTICALS LTD 0.1%
Value ($000) $3,011 Shares 501,000 Est. Cost $7.07 Unrealized
OBALON THERAPEUTICS INC 0.1%
Value ($000) $2,950 Shares 446,284 Est. Cost $9.10 Unrealized
ARALEZ PHARMACEUTICALS INC 0.1%
Value ($000) $2,335 Shares 1,644,583 Est. Cost $3.55 Unrealized
PROTEON THERAPEUTICS INC 0.1%
Value ($000) $2,327 Shares 1,224,899 Est. Cost $9.96 Unrealized
PFENEX INC 0.1%
Value ($000) $2,208 Shares 830,216 Est. Cost $2.66 Unrealized
VYGR VOYAGER THERAPEUTICS INC 0.1%
Value ($000) $1,953 Shares 117,647 Est. Cost $21.90 Unrealized
MDXG MIMEDX GROUP INC 0.1%
Value ($000) $1,892 Shares 150,000 Est. Cost $14.83 Unrealized -17.8%
ARSANIS INC 0.1%
Value ($000) $1,679 Shares 131,548 Est. Cost $12.76 Unrealized
KIDS ORTHOPEDIATRICS CORP 0.0%
Value ($000) $1,118 Shares 58,247 Est. Cost $19.13 Unrealized 0.0%
AKARI THERAPEUTICS PLC 0.0%
Value ($000) $1,082 Shares 249,785 Est. Cost $23.99 Unrealized
NUCANA PLC 0.0%
Value ($000) $835 Shares 82,637 Est. Cost $18.37 Unrealized
RA PHARMACEUTICALS INC 0.0%
Value ($000) $673 Shares 79,150 Est. Cost $15.08 Unrealized