DEERFIELD MANAGEMENT COMPANY, L.P. Quant / Systematic

Location: New York, NY

CIK: 0001009258 · Show all filings

Period: Q4 2014 (← Previous) (Next →)

Filing Date: Feb 17, 2015

Total Value: $2.784B (84.7% shares, 15.3% debt)

Holdings (111)

AUXILIUM PHARMACEUTICALS INC 7.7%
Value $216M Shares 6,267,382 Est. Cost Unrealized
AUSPEX PHARMACEUTICALS INC 5.6%
Value $155M Shares 2,949,103 Est. Cost Unrealized
HORIZON PHARMA PLC 5.4%
Value $151M Shares 11,699,047 Est. Cost Unrealized
ALLERGAN INC 4.6%
Value $129M Shares 606,601 Est. Cost Unrealized
FLAMEL TECHNOLOGIES SA 3.2%
Value $90.08M Shares 5,258,475 Est. Cost Unrealized
AVALANCHE BIOTECHNOLOGIES IN 3.1%
Value $87.19M Shares 1,614,669 Est. Cost Unrealized
NXSTAGE MEDICAL INC 3.1%
Value $86.27M Shares 4,811,494 Est. Cost Unrealized
HORIZON PHARMA INC 3.0%
Value $82.44M Shares 31,760,461 Est. Cost Unrealized
BLUEBIRD BIO INC 2.8%
Value $78.05M Shares 850,932 Est. Cost Unrealized
AMAG PHARMACEUTICALS INC 2.7%
Value $74.87M Shares 45,020,000 Est. Cost Unrealized
INFIQ INFINITY PHARMACEUTICALS INC 2.3%
Value $65.16M Shares 3,857,805 Est. Cost Unrealized
PROSENSA HLDG N V 2.2%
Value $62.18M Shares 3,316,434 Est. Cost Unrealized
VNDA VANDA PHARMACEUTICALS INC 2.1%
Value $59.28M Shares 4,139,787 Est. Cost Unrealized
EHTH EHEALTH INC 2.0%
Value $56.43M Shares 2,264,588 Est. Cost Unrealized
ARRAY BIOPHARMA INC 2.0%
Value $55.98M Shares 11,834,595 Est. Cost Unrealized
AERIE PHARMACEUTICALS INC 1.9%
Value $54.26M Shares 1,858,917 Est. Cost Unrealized
UNIVERSAL AMERN CORP NEW 1.9%
Value $52.1M Shares 5,614,798 Est. Cost Unrealized
ENDOLOGIX INC 1.9%
Value $51.66M Shares 3,378,787 Est. Cost Unrealized
INTEGRA LIFESCIENCES HLDGS C 1.8%
Value $50.43M Shares 47,428,000 Est. Cost Unrealized
ALLERGAN INC 1.5%
Value $42.52M Shares 200,000 Est. Cost Unrealized
ARRAY BIOPHARMA INC 1.5%
Value $41.6M Shares 45,000,000 Est. Cost Unrealized
NEVRO CORP 1.5%
Value $40.49M Shares 1,047,093 Est. Cost Unrealized
HUM HUMANA INC 1.4%
Value $40.22M Shares 280,000 Est. Cost Unrealized
PACB PACIFIC BIOSCIENCES CALIF IN 1.4%
Value $40.15M Shares 5,120,771 Est. Cost Unrealized
ACHILLION PHARMACEUTICALS IN 1.3%
Value $35.77M Shares 2,920,300 Est. Cost Unrealized
INSM INSMED INC 1.2%
Value $34.68M Shares 2,241,631 Est. Cost Unrealized
ENDOLOGIX INC 1.2%
Value $34.56M Shares 34,925,000 Est. Cost Unrealized
TESARO INC 1.2%
Value $34.01M Shares 27,123,000 Est. Cost Unrealized
DVA DAVITA HEALTHCARE PARTNERS I 1.2%
Value $32.95M Shares 435,000 Est. Cost Unrealized
OVASCIENCE INC 1.0%
Value $27.73M Shares 627,050 Est. Cost Unrealized
ACCURAY INC 0.9%
Value $24.99M Shares 24,100,000 Est. Cost Unrealized
ARENA PHARMACEUTICALS INC 0.9%
Value $24.13M Shares 6,953,737 Est. Cost Unrealized
GLAXOSMITHKLINE PLC 0.9%
Value $24.07M Shares 563,300 Est. Cost Unrealized
ALIMERA SCIENCES INC 0.8%
Value $22.41M Shares 4,045,826 Est. Cost Unrealized
HEARTWARE INTL INC 0.8%
Value $21.78M Shares 20,464,000 Est. Cost Unrealized
CUBIST PHARMACEUTICALS INC 0.8%
Value $21.16M Shares 210,200 Est. Cost Unrealized
ANTARES PHARMA INC 0.7%
Value $20.83M Shares 8,104,318 Est. Cost Unrealized
MCK MCKESSON CORP 0.7%
Value $19.1M Shares 92,000 Est. Cost Unrealized
GILD GILEAD SCIENCES INC 0.7%
Value $18.85M Shares 200,000 Est. Cost Unrealized
JUNO THERAPEUTICS INC 0.7%
Value $18.7M Shares 358,149 Est. Cost Unrealized
LOXO ONCOLOGY INC 0.7%
Value $18.7M Shares 1,591,546 Est. Cost Unrealized
PORTOLA PHARMACEUTICALS INC 0.7%
Value $18.57M Shares 655,559 Est. Cost Unrealized
TRUP TRUPANION INC 0.7%
Value $18.56M Shares 2,678,176 Est. Cost Unrealized
WEBMD HEALTH CORP 0.6%
Value $16.92M Shares 17,000,000 Est. Cost Unrealized
KERYX BIOPHARMACEUTICALS INC 0.6%
Value $16.75M Shares 1,183,484 Est. Cost Unrealized
RMD RESMED INC 0.6%
Value $16.61M Shares 296,300 Est. Cost Unrealized
OM2 ORTHOFIX INTL N V 0.6%
Value $16.05M Shares 533,812 Est. Cost Unrealized
AMPH AMPHASTAR PHARMACEUTICALS IN 0.5%
Value $14.82M Shares 1,276,577 Est. Cost Unrealized
TRIVASCULAR TECHNOLOGIES INC 0.5%
Value $14.44M Shares 1,148,575 Est. Cost Unrealized
ARAY ACCURAY INC 0.5%
Value $14.13M Shares 1,870,943 Est. Cost Unrealized
DYAX CORP 0.5%
Value $13.82M Shares 982,745 Est. Cost Unrealized
IMMUNOMEDICS INC 0.5%
Value $13.47M Shares 2,805,972 Est. Cost Unrealized
PROTEON THERAPEUTICS INC 0.5%
Value $13.16M Shares 1,265,343 Est. Cost Unrealized
DBV TECHNOLOGIES S A 0.5%
Value $13.08M Shares 482,300 Est. Cost Unrealized
IMPRIVATA INC 0.5%
Value $12.98M Shares 998,252 Est. Cost Unrealized
NANOSTRING TECHNOLOGIES INC 0.5%
Value $12.86M Shares 923,378 Est. Cost Unrealized
ALLSCRIPTS HEALTHCARE SOLUTN 0.5%
Value $12.79M Shares 13,000,000 Est. Cost Unrealized
MEI PHARMA INC 0.5%
Value $12.55M Shares 2,939,876 Est. Cost Unrealized
HEARTWARE INTL INC 0.4%
Value $12.1M Shares 164,800 Est. Cost Unrealized
INGN INOGEN INC 0.4%
Value $11.12M Shares 354,330 Est. Cost Unrealized
SAGE THERAPEUTICS INC 0.3%
Value $9.612M Shares 262,625 Est. Cost Unrealized
INTERCEPT PHARMACEUTICALS IN 0.3%
Value $9.421M Shares 60,393 Est. Cost Unrealized
FLUIDIGM CORP DEL 0.3%
Value $9.144M Shares 10,000,000 Est. Cost Unrealized
KITE PHARMA INC 0.3%
Value $8.985M Shares 155,799 Est. Cost Unrealized
PRQR PROQR THRAPEUTICS N V 0.3%
Value $8.235M Shares 380,000 Est. Cost Unrealized
STREAMLINE HEALTH SOLUTIONS 0.3%
Value $7.893M Shares 1,822,759 Est. Cost Unrealized
HEALTHWAYS INC 0.3%
Value $7.828M Shares 6,700,000 Est. Cost Unrealized
ACCURAY INC 0.3%
Value $7.586M Shares 5,000,000 Est. Cost Unrealized
TORNIER N V 0.3%
Value $7.369M Shares 288,971 Est. Cost Unrealized
CONNECTURE INC 0.3%
Value $7.206M Shares 799,750 Est. Cost Unrealized
SPECTRANETICS CORP 0.3%
Value $6.968M Shares 5,439,000 Est. Cost Unrealized
DERMA SCIENCES INC 0.2%
Value $6.718M Shares 721,546 Est. Cost Unrealized
CDNA CAREDX INC 0.2%
Value $5.829M Shares 804,000 Est. Cost Unrealized
ALPHATEC HOLDINGS INC 0.2%
Value $5.616M Shares 3,982,738 Est. Cost Unrealized
LUMENIS LTD 0.2%
Value $5.584M Shares 597,866 Est. Cost Unrealized
BIODELIVERY SCIENCES INTL IN 0.2%
Value $5.578M Shares 464,083 Est. Cost Unrealized
RIGEL PHARMACEUTICALS INC 0.2%
Value $5.443M Shares 2,397,855 Est. Cost Unrealized
AXGN AXOGEN INC 0.2%
Value $5.413M Shares 1,507,824 Est. Cost Unrealized
CAS MED SYS INC 0.2%
Value $5.28M Shares 3,200,000 Est. Cost Unrealized
FOAMIX PHARMACEUTICALS LTD 0.2%
Value $5.221M Shares 744,799 Est. Cost Unrealized
SCYNEXIS INC 0.2%
Value $4.99M Shares 500,000 Est. Cost Unrealized
CARA THERAPEUTICS INC 0.2%
Value $4.722M Shares 473,588 Est. Cost Unrealized
PFENEX INC 0.2%
Value $4.492M Shares 625,640 Est. Cost Unrealized
EGRX EAGLE PHARMACEUTICALS INC 0.2%
Value $4.412M Shares 284,653 Est. Cost Unrealized
BIOTELEMETRY INC 0.2%
Value $4.303M Shares 429,000 Est. Cost Unrealized
DISCOVERY LABORATORIES INC N 0.2%
Value $4.245M Shares 3,659,700 Est. Cost Unrealized
GENOCEA BIOSCIENCES INC 0.2%
Value $4.23M Shares 604,257 Est. Cost Unrealized
KALOBIOS PHARMACEUTICALS INC 0.1%
Value $3.956M Shares 2,286,783 Est. Cost Unrealized
THORATEC CORP 0.1%
Value $3.341M Shares 102,919 Est. Cost Unrealized
MERGE HEALTHCARE INC 0.1%
Value $3.179M Shares 892,897 Est. Cost Unrealized
OCERA THERAPEUTICS INC 0.1%
Value $2.937M Shares 461,119 Est. Cost Unrealized
ANTHERA PHARMACEUTICALS INC 0.1%
Value $2.673M Shares 1,691,857 Est. Cost Unrealized
KINDRED BIOSCIENCES INC 0.1%
Value $2.625M Shares 352,384 Est. Cost Unrealized
IMMUNOMEDICS INC 0.1%
Value $2.4M Shares 500,000 Est. Cost Unrealized
ADEPTUS HEALTH INC 0.1%
Value $2.358M Shares 63,053 Est. Cost Unrealized
DERMIRA INC 0.1%
Value $2.106M Shares 116,267 Est. Cost Unrealized
FLEXION THERAPEUTICS INC 0.1%
Value $2.016M Shares 99,847 Est. Cost Unrealized
PARNEUR PARNELL PHARMACEUT HLDGS LTD 0.1%
Value $1.559M Shares 375,700 Est. Cost Unrealized
PALATIN TECHNOLOGIES INC 0.1%
Value $1.46M Shares 2,000,000 Est. Cost Unrealized
EXEL EXELIXIS INC 0.1%
Value $1.44M Shares 1,000,000 Est. Cost Unrealized
SALIX PHARMACEUTICALS INC 0.0%
Value $1.322M Shares 11,500 Est. Cost Unrealized
PLASMATECH BIOPHARMACEUTICAL 0.0%
Value $1.285M Shares 372,374 Est. Cost Unrealized
EW EDWARDS LIFESCIENCES CORP 0.0%
Value $1.274M Shares 10,000 Est. Cost Unrealized
ZTS ZOETIS INC 0.0%
Value $1.08M Shares 25,097 Est. Cost Unrealized
ONCOTHYREON INC 0.0%
Value $757K Shares 398,499 Est. Cost Unrealized
ILMN ILLUMINA INC 0.0%
Value $738K Shares 4,000 Est. Cost Unrealized
KINDRED HEALTHCARE INC 0.0%
Value $684K Shares 37,611 Est. Cost Unrealized
AGILE THERAPEUTICS INC 0.0%
Value $645K Shares 105,000 Est. Cost Unrealized
MAST THERAPEUTICS INC 0.0%
Value $392K Shares 700,000 Est. Cost Unrealized
PLASMATECH BIOPHARMACEUTICAL 0.0%
Value $300K Shares 375,000 Est. Cost Unrealized
IMRSQ IMRIS INC 0.0%
Value $124K Shares 147,076 Est. Cost Unrealized