DEERFIELD MANAGEMENT COMPANY, L.P. Quant / Systematic

Location: New York, NY

CIK: 0001009258 · Show all filings

Period: Q3 2015 (← Previous) (Next →)

Filing Date: Nov 16, 2015

Total Value: $2.585B (85.2% shares, 14.8% debt)

Holdings (134)

HORIZON PHARMA PLC 6.2%
Value $160M Shares 8,081,407 Est. Cost Unrealized
ALLSCRIPTS HEALTHCARE SOLUTN 3.9%
Value $99.82M Shares 100,750,000 Est. Cost Unrealized
NXSTAGE MEDICAL INC 3.9%
Value $99.64M Shares 6,318,050 Est. Cost Unrealized
GLAXOSMITHKLINE PLC 3.4%
Value $87.77M Shares 2,282,722 Est. Cost Unrealized
AETNA INC NEW 2.7%
Value $69.59M Shares 636,039 Est. Cost Unrealized
FLAMEL TECHNOLOGIES SA 2.6%
Value $66.43M Shares 4,072,809 Est. Cost Unrealized
DYAX CORP 2.1%
Value $54.55M Shares 2,857,773 Est. Cost Unrealized
VNDA VANDA PHARMACEUTICALS INC 2.1%
Value $53.97M Shares 4,784,157 Est. Cost Unrealized
DVA DAVITA HEALTHCARE PARTNERS I 2.0%
Value $51.79M Shares 716,000 Est. Cost Unrealized
MYLAN N V 2.0%
Value $51.33M Shares 1,275,000 Est. Cost Unrealized
NIVALIS THERAPEUTICS INC 1.9%
Value $48.41M Shares 3,732,412 Est. Cost Unrealized
HEALTHWAYS INC 1.9%
Value $47.87M Shares 51,925,000 Est. Cost Unrealized
ARRAY BIOPHARMA INC 1.7%
Value $44.37M Shares 9,729,361 Est. Cost Unrealized
ADEPTUS HEALTH INC 1.7%
Value $44.04M Shares 545,328 Est. Cost Unrealized
ARRAY BIOPHARMA INC 1.7%
Value $43.86M Shares 45,000,000 Est. Cost Unrealized
EHTH EHEALTH INC 1.6%
Value $41.82M Shares 3,264,588 Est. Cost Unrealized
BLUEBIRD BIO INC 1.6%
Value $41.32M Shares 483,000 Est. Cost Unrealized
WALGREENS BOOTS ALLIANCE INC 1.5%
Value $38.51M Shares 463,457 Est. Cost Unrealized
HEARTWARE INTL INC 1.5%
Value $37.71M Shares 39,226,000 Est. Cost Unrealized
GLOBAL BLOOD THERAPEUTICS IN 1.5%
Value $37.55M Shares 890,620 Est. Cost Unrealized
CRL CHARLES RIV LABS INTL INC 1.4%
Value $36.92M Shares 581,188 Est. Cost Unrealized
ENDOLOGIX INC 1.4%
Value $36.88M Shares 40,941,000 Est. Cost Unrealized
GW PHARMACEUTICALS PLC 1.4%
Value $35.74M Shares 391,122 Est. Cost Unrealized
AAC HLDGS INC 1.4%
Value $35.63M Shares 1,601,376 Est. Cost Unrealized
TEVA TEVA PHARMACEUTICAL INDS LTD 1.3%
Value $34.72M Shares 615,000 Est. Cost Unrealized
MCK MCKESSON CORP 1.3%
Value $34.35M Shares 185,646 Est. Cost Unrealized
UNIVERSAL AMERN CORP NEW 1.3%
Value $33.73M Shares 4,930,787 Est. Cost Unrealized
INFIQ INFINITY PHARMACEUTICALS INC 1.3%
Value $33.05M Shares 3,910,721 Est. Cost Unrealized
TEVA TEVA PHARMACEUTICAL INDS LTD 1.2%
Value $31.05M Shares 550,000 Est. Cost Unrealized
ACCURAY INC 1.2%
Value $30.84M Shares 30,511,000 Est. Cost Unrealized
SPECTRANETICS CORP 1.2%
Value $30.25M Shares 39,831,000 Est. Cost Unrealized
RGNX REGENXBIO INC 1.1%
Value $29.44M Shares 1,336,542 Est. Cost Unrealized
PCRX PACIRA PHARMACEUTICALS INC 1.1%
Value $28.87M Shares 702,485 Est. Cost Unrealized
ENDOLOGIX INC 1.1%
Value $28.78M Shares 2,347,113 Est. Cost Unrealized
PRONAI THERAPEUTICS INC 1.1%
Value $27.67M Shares 1,348,401 Est. Cost Unrealized
AKARI THERAPEUTICS PLC 1.1%
Value $27.61M Shares 1,150,700 Est. Cost Unrealized
KEMPHARM INC 1.1%
Value $27.53M Shares 1,420,497 Est. Cost Unrealized
SAGE THERAPEUTICS INC 1.1%
Value $27.47M Shares 649,064 Est. Cost Unrealized
HEALTHWAYS INC 1.1%
Value $27.41M Shares 2,465,042 Est. Cost Unrealized
ANTARES PHARMA INC 1.0%
Value $26.27M Shares 15,451,124 Est. Cost Unrealized
RITE AID CORP 1.0%
Value $25.63M Shares 4,222,800 Est. Cost Unrealized
FLUIDIGM CORP DEL 1.0%
Value $25.23M Shares 35,000,000 Est. Cost Unrealized
WEBMD HEALTH CORP 0.9%
Value $23.64M Shares 23,000,000 Est. Cost Unrealized
GENOMIC HEALTH INC 0.9%
Value $23.14M Shares 1,093,516 Est. Cost Unrealized
XNCR XENCOR INC 0.8%
Value $21.86M Shares 1,787,000 Est. Cost Unrealized
IMPRIVATA INC 0.8%
Value $20.46M Shares 1,151,140 Est. Cost Unrealized
ENDOCHOICE HLDGS INC 0.8%
Value $20.42M Shares 1,797,709 Est. Cost Unrealized
RELYPSA INC 0.8%
Value $20.38M Shares 1,101,000 Est. Cost Unrealized
MALLINCKRODT PUB LTD CO 0.8%
Value $20.33M Shares 317,931 Est. Cost Unrealized
ELV ANTHEM INC 0.8%
Value $19.71M Shares 140,806 Est. Cost Unrealized
LOXO ONCOLOGY INC 0.7%
Value $19.02M Shares 1,088,225 Est. Cost Unrealized
GLPG GALAPAGOS NV 0.7%
Value $17.96M Shares 441,085 Est. Cost Unrealized
ZAFGEN INC 0.7%
Value $17.68M Shares 553,472 Est. Cost Unrealized
PROTEON THERAPEUTICS INC 0.7%
Value $17.6M Shares 1,265,343 Est. Cost Unrealized
DBV TECHNOLOGIES S A 0.6%
Value $16.44M Shares 461,869 Est. Cost Unrealized
SYNERON MEDICAL LTD 0.6%
Value $14.87M Shares 2,079,013 Est. Cost Unrealized
AERIE PHARMACEUTICALS INC 0.6%
Value $14.33M Shares 807,875 Est. Cost Unrealized
NANOSTRING TECHNOLOGIES INC 0.5%
Value $14.09M Shares 880,622 Est. Cost Unrealized
PORTOLA PHARMACEUTICALS INC 0.5%
Value $14.06M Shares 329,837 Est. Cost Unrealized
AXGN AXOGEN INC 0.5%
Value $13.93M Shares 3,381,439 Est. Cost Unrealized
EW EDWARDS LIFESCIENCES CORP 0.5%
Value $13.81M Shares 97,119 Est. Cost Unrealized
ZELTIQ AESTHETICS INC 0.5%
Value $13.46M Shares 420,063 Est. Cost Unrealized
NUVASIVE INC 0.5%
Value $12.79M Shares 265,272 Est. Cost Unrealized
BKD BROOKDALE SR LIVING INC 0.5%
Value $12.79M Shares 557,000 Est. Cost Unrealized
OM2 ORTHOFIX INTL N V 0.5%
Value $12.16M Shares 360,459 Est. Cost Unrealized
XENOPORT INC 0.5%
Value $11.96M Shares 3,445,374 Est. Cost Unrealized
MGNX MACROGENICS INC 0.5%
Value $11.93M Shares 557,000 Est. Cost Unrealized
TRUP TRUPANION INC 0.5%
Value $11.92M Shares 1,578,925 Est. Cost Unrealized
ESSA PHARMA INC 0.4%
Value $11.58M Shares 1,859,282 Est. Cost Unrealized
ACHILLION PHARMACEUTICALS IN 0.4%
Value $11.52M Shares 1,667,000 Est. Cost Unrealized
ALIMERA SCIENCES INC 0.4%
Value $9.769M Shares 4,420,580 Est. Cost Unrealized
NEOS THERAPEUTICS INC 0.4%
Value $9.63M Shares 458,332 Est. Cost Unrealized
GENNQ GENESIS HEALTHCARE INC 0.4%
Value $9.429M Shares 1,538,232 Est. Cost Unrealized
ARENA PHARMACEUTICALS INC 0.3%
Value $8.864M Shares 4,640,877 Est. Cost Unrealized
PACB PACIFIC BIOSCIENCES CALIF IN 0.3%
Value $8M Shares 2,185,771 Est. Cost Unrealized
NOVAVAX INC 0.3%
Value $7.353M Shares 1,040,000 Est. Cost Unrealized
HEARTWARE INTL INC 0.3%
Value $7.02M Shares 134,200 Est. Cost Unrealized
OXFORD IMMUNOTEC GLOBAL PLC 0.3%
Value $7.016M Shares 519,670 Est. Cost Unrealized
TONIX PHARMACEUTICALS HLDG C 0.3%
Value $6.959M Shares 1,315,551 Est. Cost Unrealized
FOAMIX PHARMACEUTICALS LTD 0.3%
Value $6.956M Shares 948,934 Est. Cost Unrealized
EGALET CORP 0.2%
Value $6.288M Shares 477,123 Est. Cost Unrealized
AXOVANT SCIENCES LTD 0.2%
Value $6.262M Shares 484,664 Est. Cost Unrealized
ALCOBRA LTD 0.2%
Value $6.024M Shares 997,349 Est. Cost Unrealized
RIGEL PHARMACEUTICALS INC 0.2%
Value $5.923M Shares 2,397,855 Est. Cost Unrealized
ALLIQUA BIOMEDICAL INC 0.2%
Value $5.318M Shares 1,677,546 Est. Cost Unrealized
STREAMLINE HEALTH SOLUTIONS 0.2%
Value $5.205M Shares 2,272,759 Est. Cost Unrealized
JAZZ INVESTMENTS I LTD 0.2%
Value $5.098M Shares 5,000,000 Est. Cost Unrealized
CATABASIS PHARMACEUTICALS IN 0.2%
Value $5.084M Shares 628,482 Est. Cost Unrealized
SCYNEXIS INC 0.2%
Value $5.043M Shares 692,781 Est. Cost Unrealized
TRACON PHARMACEUTICALS INC 0.2%
Value $4.738M Shares 485,000 Est. Cost Unrealized
ATYR PHARMA INC 0.2%
Value $4.735M Shares 461,530 Est. Cost Unrealized
DERMA SCIENCES INC 0.2%
Value $4.72M Shares 1,002,201 Est. Cost Unrealized
STEADYMED LTD 0.2%
Value $4.669M Shares 1,315,169 Est. Cost Unrealized
AKORN INC 0.2%
Value $4.58M Shares 160,667 Est. Cost Unrealized
ALDX ALDEYRA THERAPEUTICS INC 0.2%
Value $4.026M Shares 690,538 Est. Cost Unrealized
PEN PENUMBRA INC 0.2%
Value $4.01M Shares 100,000 Est. Cost Unrealized
CAS MED SYS INC 0.2%
Value $4M Shares 3,200,000 Est. Cost Unrealized
BIODELIVERY SCIENCES INTL IN 0.2%
Value $3.892M Shares 700,000 Est. Cost Unrealized
MIRATI THERAPEUTICS INC 0.1%
Value $3.788M Shares 110,049 Est. Cost Unrealized
PSIVIDA CORP 0.1%
Value $3.548M Shares 972,110 Est. Cost Unrealized
GENOCEA BIOSCIENCES INC 0.1%
Value $3.434M Shares 501,257 Est. Cost Unrealized
VERSARTIS INC 0.1%
Value $3.194M Shares 277,000 Est. Cost Unrealized
PRQR PROQR THRAPEUTICS N V 0.1%
Value $3.051M Shares 209,398 Est. Cost Unrealized
CIDARA THERAPEUTICS INC 0.1%
Value $3.022M Shares 237,583 Est. Cost Unrealized
BIOTIE THERAPIES OYJ 0.1%
Value $2.874M Shares 219,558 Est. Cost Unrealized
INVUITY INC 0.1%
Value $2.819M Shares 201,068 Est. Cost Unrealized
TRINITY BIOTECH PLC 0.1%
Value $2.814M Shares 246,000 Est. Cost Unrealized
BIOTELEMETRY INC 0.1%
Value $2.72M Shares 222,215 Est. Cost Unrealized
DISCOVERY LABORATORIES INC N 0.1%
Value $2.561M Shares 8,537,995 Est. Cost Unrealized
MAZOR ROBOTICS LTD 0.1%
Value $2.525M Shares 228,909 Est. Cost Unrealized
ACUR ACURA PHARMACEUTICALS INC 0.1%
Value $2.41M Shares 1,025,641 Est. Cost Unrealized
TRILLIUM THERAPEUTICS INC 0.1%
Value $2.245M Shares 172,307 Est. Cost Unrealized
ILMN ILLUMINA INC 0.1%
Value $1.934M Shares 11,000 Est. Cost Unrealized
VRTX VERTEX PHARMACEUTICALS INC 0.1%
Value $1.927M Shares 18,500 Est. Cost Unrealized
LA JOLLA PHARMACEUTICAL CO 0.1%
Value $1.806M Shares 65,000 Est. Cost Unrealized
VCYT VERACYTE INC 0.1%
Value $1.797M Shares 383,256 Est. Cost Unrealized
ALPHATEC HOLDINGS INC 0.1%
Value $1.644M Shares 4,982,738 Est. Cost Unrealized
PALATIN TECHNOLOGIES INC 0.1%
Value $1.62M Shares 2,000,000 Est. Cost Unrealized
BIIB BIOGEN INC 0.1%
Value $1.605M Shares 5,500 Est. Cost Unrealized
KINDRED BIOSCIENCES INC 0.1%
Value $1.452M Shares 279,204 Est. Cost Unrealized
BOVIE MEDICAL CORP 0.1%
Value $1.342M Shares 688,229 Est. Cost Unrealized
INVITAE CORP 0.0%
Value $1.203M Shares 166,666 Est. Cost Unrealized
KINDRED HEALTHCARE INC 0.0%
Value $1.136M Shares 72,100 Est. Cost Unrealized
THC TENET HEALTHCARE CORP 0.0%
Value $1.019M Shares 27,602 Est. Cost Unrealized
CDNA CAREDX INC 0.0%
Value $955K Shares 229,000 Est. Cost Unrealized
CORSICANTO LTD 0.0%
Value $917K Shares 1,000,000 Est. Cost Unrealized
ESPR ESPERION THERAPEUTICS INC NE 0.0%
Value $778K Shares 32,970 Est. Cost Unrealized
HALO HALOZYME THERAPEUTICS INC 0.0%
Value $676K Shares 50,349 Est. Cost Unrealized
CAH CARDINAL HEALTH INC 0.0%
Value $615K Shares 8,000 Est. Cost Unrealized
SEM SELECT MED HLDGS CORP 0.0%
Value $593K Shares 55,000 Est. Cost Unrealized
OPHTHOTECH CORP 0.0%
Value $405K Shares 10,000 Est. Cost Unrealized
VALEANT PHARMACEUTICALS INTL 0.0%
Value $281K Shares 1,575 Est. Cost Unrealized
POZEN INC 0.0%
Value $260K Shares 44,583 Est. Cost Unrealized
TRANSENTERIX INC 0.0%
Value $140K Shares 61,819 Est. Cost Unrealized