DEERFIELD MANAGEMENT COMPANY, L.P. Quant / Systematic

Location: New York, NY

CIK: 0001009258 · Show all filings

Period: Q1 2016 (← Previous) (Next →)

Filing Date: May 16, 2016

Total Value: $2.349B (84.3% shares, 15.7% debt)

Holdings (105)

HORIZON PHARMA PLC 9.7%
Value $228M Shares 13,740,261 Est. Cost Unrealized
MYLAN N V 3.6%
Value $84.94M Shares 1,832,535 Est. Cost Unrealized
NXSTAGE MEDICAL INC 3.5%
Value $82.53M Shares 5,506,028 Est. Cost Unrealized
HEALTHWAYS INC 3.0%
Value $70.59M Shares 76,925,000 Est. Cost Unrealized
HORIZON PHARMA INVT LTD 3.0%
Value $70.47M Shares 82,600,000 Est. Cost Unrealized
GLAXOSMITHKLINE PLC 2.9%
Value $67.94M Shares 1,675,385 Est. Cost Unrealized
AETNA INC NEW 2.8%
Value $66.45M Shares 591,465 Est. Cost Unrealized
PORTOLA PHARMACEUTICALS INC 2.7%
Value $63.03M Shares 3,089,785 Est. Cost Unrealized
AVEXIS INC 2.6%
Value $60.93M Shares 2,236,701 Est. Cost Unrealized
DVA DAVITA HEALTHCARE PARTNERS I 2.6%
Value $60.32M Shares 822,000 Est. Cost Unrealized
EDIT EDITAS MEDICINE INC 2.5%
Value $59.04M Shares 1,709,400 Est. Cost Unrealized
ADEPTUS HEALTH INC 2.3%
Value $53.13M Shares 956,533 Est. Cost Unrealized
XENOPORT INC 2.2%
Value $52.19M Shares 11,572,125 Est. Cost Unrealized
VNDA VANDA PHARMACEUTICALS INC 2.1%
Value $50.13M Shares 5,996,691 Est. Cost Unrealized
GW PHARMACEUTICALS PLC 2.1%
Value $48.66M Shares 674,373 Est. Cost Unrealized
XNCR XENCOR INC 2.0%
Value $46.53M Shares 3,467,512 Est. Cost Unrealized
AAC HLDGS INC 1.9%
Value $45.42M Shares 2,294,936 Est. Cost Unrealized
FLAMEL TECHNOLOGIES SA 1.9%
Value $44.96M Shares 4,072,809 Est. Cost Unrealized
WALGREENS BOOTS ALLIANCE INC 1.8%
Value $43.09M Shares 511,457 Est. Cost Unrealized
ENDOLOGIX INC 1.6%
Value $38.63M Shares 40,000,000 Est. Cost Unrealized
UNIVERSAL AMERN CORP NEW 1.6%
Value $37.74M Shares 5,285,500 Est. Cost Unrealized
HEARTWARE INTL INC 1.6%
Value $36.5M Shares 39,226,000 Est. Cost Unrealized
WRIGHT MED GROUP INC 1.5%
Value $35.96M Shares 40,050,000 Est. Cost Unrealized
ARRAY BIOPHARMA INC 1.5%
Value $35.88M Shares 45,000,000 Est. Cost Unrealized
SAGE THERAPEUTICS INC 1.5%
Value $35.7M Shares 1,113,654 Est. Cost Unrealized
AERIE PHARMACEUTICALS INC 1.4%
Value $32.01M Shares 2,632,482 Est. Cost Unrealized
EHTH EHEALTH INC 1.3%
Value $30.65M Shares 3,264,588 Est. Cost Unrealized
ZELTIQ AESTHETICS INC 1.3%
Value $30M Shares 1,104,417 Est. Cost Unrealized
ENDOLOGIX INC 1.3%
Value $29.87M Shares 40,941,000 Est. Cost Unrealized
ARRAY BIOPHARMA INC 1.2%
Value $28.11M Shares 9,529,361 Est. Cost Unrealized
FIVE PRIME THERAPEUTICS INC 1.2%
Value $27.63M Shares 680,000 Est. Cost Unrealized
MCK MCKESSON CORP 1.2%
Value $27.52M Shares 175,000 Est. Cost Unrealized
HEARTWARE INTL INC 1.2%
Value $27.36M Shares 870,634 Est. Cost Unrealized
ACORDA THERAPEUTICS INC 1.2%
Value $27.23M Shares 1,029,410 Est. Cost Unrealized
DBV TECHNOLOGIES S A 1.1%
Value $26.62M Shares 817,806 Est. Cost Unrealized
RELYPSA INC 1.1%
Value $25.39M Shares 1,873,471 Est. Cost Unrealized
HEALTHWAYS INC 1.1%
Value $24.98M Shares 2,475,387 Est. Cost Unrealized
SPECTRANETICS CORP 1.0%
Value $23.64M Shares 29,831,000 Est. Cost Unrealized
INFIQ INFINITY PHARMACEUTICALS INC 1.0%
Value $23.18M Shares 4,398,862 Est. Cost Unrealized
KEMPHARM INC 0.9%
Value $20.6M Shares 1,420,497 Est. Cost Unrealized
ZAFGEN INC 0.9%
Value $20.41M Shares 3,055,603 Est. Cost Unrealized
PRONAI THERAPEUTICS INC 0.9%
Value $20.23M Shares 3,001,302 Est. Cost Unrealized
RITE AID CORP 0.8%
Value $19.5M Shares 2,393,072 Est. Cost Unrealized
GLOBAL BLOOD THERAPEUTICS IN 0.8%
Value $18.93M Shares 1,193,811 Est. Cost Unrealized
AXGN AXOGEN INC 0.8%
Value $18.13M Shares 3,381,439 Est. Cost Unrealized
AKARI THERAPEUTICS PLC 0.7%
Value $16.11M Shares 1,150,700 Est. Cost Unrealized
NIVALIS THERAPEUTICS INC 0.7%
Value $15.56M Shares 3,732,412 Est. Cost Unrealized
FLUIDIGM CORP DEL 0.7%
Value $15.35M Shares 27,715,000 Est. Cost Unrealized
ELV ANTHEM INC 0.6%
Value $14.18M Shares 102,000 Est. Cost Unrealized
GLPG GALAPAGOS NV 0.6%
Value $13.7M Shares 327,626 Est. Cost Unrealized
NOVAVAX INC 0.5%
Value $12.67M Shares 2,456,261 Est. Cost Unrealized
RGNX REGENXBIO INC 0.5%
Value $12.63M Shares 1,169,042 Est. Cost Unrealized
IMPRIVATA INC 0.5%
Value $12.42M Shares 983,366 Est. Cost Unrealized
CTMX CYTOMX THERAPEUTICS INC 0.5%
Value $12.17M Shares 943,433 Est. Cost Unrealized
ALIMERA SCIENCES INC 0.4%
Value $10.29M Shares 5,878,015 Est. Cost Unrealized
PROTEON THERAPEUTICS INC 0.4%
Value $9.794M Shares 1,265,343 Est. Cost Unrealized
MGNX MACROGENICS INC 0.4%
Value $9.711M Shares 517,920 Est. Cost Unrealized
INVUITY INC 0.4%
Value $9.581M Shares 1,327,009 Est. Cost Unrealized
ENDOCHOICE HLDGS INC 0.4%
Value $9.499M Shares 1,823,309 Est. Cost Unrealized
ACCELERON PHARMA INC 0.4%
Value $9.329M Shares 353,491 Est. Cost Unrealized
NANOSTRING TECHNOLOGIES INC 0.4%
Value $9.227M Shares 606,222 Est. Cost Unrealized
ESSA PHARMA INC 0.4%
Value $8.408M Shares 2,587,215 Est. Cost Unrealized
CEPHEID 0.3%
Value $6.917M Shares 7,750,000 Est. Cost Unrealized
LOXO ONCOLOGY INC 0.3%
Value $6.862M Shares 251,000 Est. Cost Unrealized
SEM SELECT MED HLDGS CORP 0.3%
Value $6.603M Shares 559,097 Est. Cost Unrealized
FOAMIX PHARMACEUTICALS LTD 0.3%
Value $6.187M Shares 948,934 Est. Cost Unrealized
GENOCEA BIOSCIENCES INC 0.3%
Value $6.093M Shares 787,257 Est. Cost Unrealized
ARALEZ PHARMACEUTICALS INC 0.2%
Value $5.838M Shares 1,644,583 Est. Cost Unrealized
JAZZ INVESTMENTS I LTD 0.2%
Value $5.111M Shares 5,000,000 Est. Cost Unrealized
RIGEL PHARMACEUTICALS INC 0.2%
Value $4.988M Shares 2,397,855 Est. Cost Unrealized
NEOS THERAPEUTICS INC 0.2%
Value $4.945M Shares 458,332 Est. Cost Unrealized
ENDOLOGIX INC 0.2%
Value $4.764M Shares 569,895 Est. Cost Unrealized
ABIOMED INC 0.2%
Value $4.721M Shares 49,797 Est. Cost Unrealized
OXFORD IMMUNOTEC GLOBAL PLC 0.2%
Value $4.604M Shares 464,541 Est. Cost Unrealized
CAS MED SYS INC 0.2%
Value $4.544M Shares 3,200,000 Est. Cost Unrealized
EGALET CORP 0.2%
Value $4.096M Shares 597,123 Est. Cost Unrealized
ALCOBRA LTD 0.2%
Value $4.055M Shares 1,069,914 Est. Cost Unrealized
MYOKARDIA INC 0.2%
Value $4.014M Shares 374,800 Est. Cost Unrealized
PSIVIDA CORP 0.2%
Value $4.001M Shares 1,492,824 Est. Cost Unrealized
SCYNEXIS INC 0.1%
Value $3.417M Shares 848,000 Est. Cost Unrealized
STEADYMED LTD 0.1%
Value $3.313M Shares 1,346,744 Est. Cost Unrealized
CATABASIS PHARMACEUTICALS IN 0.1%
Value $3.244M Shares 643,580 Est. Cost Unrealized
TONIX PHARMACEUTICALS HLDG C 0.1%
Value $3.17M Shares 1,315,551 Est. Cost Unrealized
ACUR ACURA PHARMACEUTICALS INC 0.1%
Value $2.903M Shares 1,025,641 Est. Cost Unrealized
TRACON PHARMACEUTICALS INC 0.1%
Value $2.776M Shares 397,085 Est. Cost Unrealized
ARDX ARDELYX INC 0.1%
Value $2.137M Shares 275,000 Est. Cost Unrealized
VYGR VOYAGER THERAPEUTICS INC 0.1%
Value $2.054M Shares 235,294 Est. Cost Unrealized
ALDX ALDEYRA THERAPEUTICS INC 0.1%
Value $1.975M Shares 471,259 Est. Cost Unrealized
TRILLIUM THERAPEUTICS INC 0.1%
Value $1.594M Shares 172,307 Est. Cost Unrealized
AGILE THERAPEUTICS INC 0.1%
Value $1.553M Shares 250,000 Est. Cost Unrealized
TRUP TRUPANION INC 0.1%
Value $1.529M Shares 155,236 Est. Cost Unrealized
ALPHATEC HOLDINGS INC 0.1%
Value $1.196M Shares 4,982,738 Est. Cost Unrealized
CDNA CAREDX INC 0.0%
Value $1.136M Shares 229,000 Est. Cost Unrealized
ALLERGAN PLC 0.0%
Value $938K Shares 3,500 Est. Cost Unrealized
STREAMLINE HEALTH SOLUTIONS 0.0%
Value $935K Shares 662,971 Est. Cost Unrealized
VCYT VERACYTE INC 0.0%
Value $892K Shares 165,097 Est. Cost Unrealized
CIDARA THERAPEUTICS INC 0.0%
Value $873K Shares 68,779 Est. Cost Unrealized
CORSICANTO LTD 0.0%
Value $821K Shares 1,000,000 Est. Cost Unrealized
PFE PFIZER INC 0.0%
Value $741K Shares 25,000 Est. Cost Unrealized
ALLIQUA BIOMEDICAL INC 0.0%
Value $547K Shares 667,246 Est. Cost Unrealized
PALATIN TECHNOLOGIES INC 0.0%
Value $532K Shares 985,693 Est. Cost Unrealized
WRIGHT MED GROUP N V 0.0%
Value $498K Shares 30,000 Est. Cost Unrealized
RENNOVA HEALTH INC 0.0%
Value $265K Shares 353,933 Est. Cost Unrealized
OCERA THERAPEUTICS INC 0.0%
Value $221K Shares 75,293 Est. Cost Unrealized
RENNOVA HEALTH INC 0.0%
Value $51,000 Shares 645,161 Est. Cost Unrealized