DEERFIELD MANAGEMENT COMPANY, L.P. Quant / Systematic

Location: New York, NY

CIK: 0001009258 · Show all filings

Period: Q1 2014 (← Previous) (Next →)

Filing Date: May 15, 2014

Total Value: $2.449B (79.9% shares, 20.1% debt)

Holdings (124)

HUM HUMANA INC 5.9%
Value $144M Shares 1,280,000 Est. Cost Unrealized
DENDREON CORP 5.5%
Value $134M Shares 183,660,000 Est. Cost Unrealized
FLAMEL TECHNOLOGIES SA 2.9%
Value $70.46M Shares 5,258,475 Est. Cost Unrealized
AUXILIUM PHARMACEUTICALS INC 2.8%
Value $69.76M Shares 2,566,705 Est. Cost Unrealized
LABORATORY CORP AMER HLDGS 2.8%
Value $69.7M Shares 709,689 Est. Cost Unrealized
DICERNA PHARMACEUTICALS INC 2.8%
Value $68.61M Shares 2,428,569 Est. Cost Unrealized
QUESTCOR PHARMACEUTICALS INC 2.8%
Value $67.52M Shares 1,039,865 Est. Cost Unrealized
AUSPEX PHARMACEUTICALS INC 2.5%
Value $61.18M Shares 1,988,990 Est. Cost Unrealized
VOLCANO CORPORATION 2.4%
Value $59.77M Shares 60,500,000 Est. Cost Unrealized
ARRAY BIOPHARMA INC 2.3%
Value $57.37M Shares 12,205,673 Est. Cost Unrealized
INTERMUNE INC 2.2%
Value $53.02M Shares 1,583,942 Est. Cost Unrealized
INFIQ INFINITY PHARMACEUTICALS INC 2.2%
Value $52.84M Shares 4,444,027 Est. Cost Unrealized
ABBV ABBVIE INC 2.2%
Value $52.69M Shares 1,025,000 Est. Cost Unrealized
INTERMUNE INC 2.1%
Value $51.37M Shares 40,295,000 Est. Cost Unrealized
QUESTCOR PHARMACEUTICALS INC 2.0%
Value $48.7M Shares 750,000 Est. Cost Unrealized
NXSTAGE MEDICAL INC 2.0%
Value $48.43M Shares 3,801,175 Est. Cost Unrealized
INTEGRA LIFESCIENCES HLDGS C 1.8%
Value $43.7M Shares 41,523,000 Est. Cost Unrealized
INSM INSMED INC 1.6%
Value $38.39M Shares 2,016,147 Est. Cost Unrealized
HOLOGIC INC 1.6%
Value $38.35M Shares 37,516,000 Est. Cost Unrealized
AMAG PHARMACEUTICALS INC 1.4%
Value $34.99M Shares 34,520,000 Est. Cost Unrealized
DYAX CORP 1.4%
Value $34M Shares 3,786,478 Est. Cost Unrealized
BIODELIVERY SCIENCES INTL IN 1.4%
Value $33.65M Shares 3,986,760 Est. Cost Unrealized
INTERMUNE INC 1.4%
Value $33.47M Shares 1,000,000 Est. Cost Unrealized
ANTARES PHARMA INC 1.4%
Value $33.21M Shares 9,488,461 Est. Cost Unrealized
TORNIER N V 1.3%
Value $32.98M Shares 1,554,075 Est. Cost Unrealized
UNIVERSAL AMERN CORP NEW 1.3%
Value $32.53M Shares 4,600,993 Est. Cost Unrealized
ACCURAY INC 1.3%
Value $30.77M Shares 25,700,000 Est. Cost Unrealized
AIR METHODS CORP 1.2%
Value $29.52M Shares 552,544 Est. Cost Unrealized
PACB PACIFIC BIOSCIENCES CALIF IN 1.2%
Value $28.92M Shares 5,406,110 Est. Cost Unrealized
MCK MCKESSON CORP 1.2%
Value $28.78M Shares 163,000 Est. Cost Unrealized
MEDTRONIC INC 1.2%
Value $28.55M Shares 464,000 Est. Cost Unrealized
MRK MERCK & CO INC NEW 1.1%
Value $27.09M Shares 477,200 Est. Cost Unrealized
ALLERGAN INC 1.1%
Value $26.76M Shares 215,636 Est. Cost Unrealized
ARRAY BIOPHARMA INC 1.1%
Value $26.66M Shares 26,000,000 Est. Cost Unrealized
SYNAGEVA BIOPHARMA CORP 1.1%
Value $26.36M Shares 317,678 Est. Cost Unrealized
DGX QUEST DIAGNOSTICS INC 1.0%
Value $25.5M Shares 440,303 Est. Cost Unrealized
DVA DAVITA HEALTHCARE PARTNERS I 1.0%
Value $23.96M Shares 348,011 Est. Cost Unrealized
KERYX BIOPHARMACEUTICALS INC 1.0%
Value $23.91M Shares 1,403,105 Est. Cost Unrealized
XENOPORT INC 0.9%
Value $22.67M Shares 4,384,797 Est. Cost Unrealized
ALNY ALNYLAM PHARMACEUTICALS INC 0.8%
Value $20.28M Shares 302,000 Est. Cost Unrealized
PORTOLA PHARMACEUTICALS INC 0.8%
Value $19.94M Shares 769,848 Est. Cost Unrealized
HORIZON PHARMA INC 0.8%
Value $19.82M Shares 1,310,930 Est. Cost Unrealized
INTERMUNE INC 0.8%
Value $19.62M Shares 7,500,000 Est. Cost Unrealized
PROSENSA HLDG N V 0.7%
Value $18.08M Shares 3,211,372 Est. Cost Unrealized
OM2 ORTHOFIX INTL N V 0.7%
Value $17.83M Shares 591,431 Est. Cost Unrealized
ZOGENIX INC 0.7%
Value $17.57M Shares 6,174,809 Est. Cost Unrealized
MOH MOLINA HEALTHCARE INC 0.7%
Value $16.95M Shares 451,391 Est. Cost Unrealized
OVASCIENCE INC 0.6%
Value $14.95M Shares 1,672,549 Est. Cost Unrealized
ARATANA THERAPEUTICS INC 0.6%
Value $14.64M Shares 788,904 Est. Cost Unrealized
ZTS ZOETIS INC 0.6%
Value $14.47M Shares 500,000 Est. Cost Unrealized
DENDREON CORP 0.6%
Value $14.31M Shares 14,740,000 Est. Cost Unrealized
EHTH EHEALTH INC 0.6%
Value $13.77M Shares 271,000 Est. Cost Unrealized
MEI PHARMA INC 0.5%
Value $12.96M Shares 1,164,575 Est. Cost Unrealized
ALLERGAN INC 0.5%
Value $12.41M Shares 100,000 Est. Cost Unrealized
GENOCEA BIOSCIENCES INC 0.5%
Value $12.01M Shares 659,983 Est. Cost Unrealized
AERIE PHARMACEUTICALS INC 0.5%
Value $11.98M Shares 565,180 Est. Cost Unrealized
ENDOLOGIX INC 0.5%
Value $11.93M Shares 12,450,000 Est. Cost Unrealized
ANIP ANI PHARMACEUTICALS INC 0.5%
Value $11.65M Shares 371,572 Est. Cost Unrealized
FOUNDATION MEDICINE INC 0.5%
Value $11.1M Shares 342,921 Est. Cost Unrealized
IMMUNOMEDICS INC 0.5%
Value $11.07M Shares 2,628,972 Est. Cost Unrealized
AMAG PHARMACEUTICALS INC 0.4%
Value $10.35M Shares 534,930 Est. Cost Unrealized
ALIMERA SCIENCES INC 0.4%
Value $10.35M Shares 1,311,290 Est. Cost Unrealized
SPECTRUM PHARMACEUTICALS INC 0.4%
Value $9.921M Shares 1,265,375 Est. Cost Unrealized
BCRX BIOCRYST PHARMACEUTICALS 0.4%
Value $9.606M Shares 907,920 Est. Cost Unrealized
ACCURAY INC 0.4%
Value $9.546M Shares 5,000,000 Est. Cost Unrealized
ZELTIQ AESTHETICS INC 0.4%
Value $9.482M Shares 483,520 Est. Cost Unrealized
IART INTEGRA LIFESCIENCES HLDGS C 0.4%
Value $9.48M Shares 206,128 Est. Cost Unrealized
BLUEBIRD BIO INC 0.4%
Value $9.425M Shares 414,474 Est. Cost Unrealized
ENDOLOGIX INC 0.4%
Value $8.796M Shares 683,458 Est. Cost Unrealized
CONCERT PHARMACEUTICALS INC 0.3%
Value $8.307M Shares 617,649 Est. Cost Unrealized
PTCT PTC THERAPEUTICS INC 0.3%
Value $8.3M Shares 317,530 Est. Cost Unrealized
VNDA VANDA PHARMACEUTICALS INC 0.3%
Value $8.153M Shares 501,709 Est. Cost Unrealized
NANOSTRING TECHNOLOGIES INC 0.3%
Value $8.076M Shares 391,105 Est. Cost Unrealized
CAPITAL SR LIVING CORP 0.3%
Value $8.007M Shares 308,088 Est. Cost Unrealized
DISCOVERY LABORATORIES INC N 0.3%
Value $7.868M Shares 3,659,700 Est. Cost Unrealized
CNC CENTENE CORP DEL 0.3%
Value $7.768M Shares 124,795 Est. Cost Unrealized
ARENA PHARMACEUTICALS INC 0.3%
Value $7.664M Shares 1,216,579 Est. Cost Unrealized
KALOBIOS PHARMACEUTICALS INC 0.3%
Value $7.552M Shares 2,786,783 Est. Cost Unrealized
SEQUENOM INC 0.3%
Value $7.466M Shares 8,377,000 Est. Cost Unrealized
CAS MED SYS INC 0.3%
Value $6.944M Shares 3,200,000 Est. Cost Unrealized
AUXILIUM PHARMACEUTICALS INC 0.3%
Value $6.795M Shares 250,000 Est. Cost Unrealized
AMEDISYS INC 0.3%
Value $6.537M Shares 439,000 Est. Cost Unrealized
ALERE INC 0.3%
Value $6.278M Shares 5,750,000 Est. Cost Unrealized
BAX BAXTER INTL INC 0.3%
Value $6.254M Shares 85,000 Est. Cost Unrealized
ALPHATEC HOLDINGS INC 0.2%
Value $5.974M Shares 3,982,738 Est. Cost Unrealized
INGN INOGEN INC 0.2%
Value $5.899M Shares 357,269 Est. Cost Unrealized
STREAMLINE HEALTH SOLUTIONS 0.2%
Value $5.735M Shares 1,140,100 Est. Cost Unrealized
ANTHERA PHARMACEUTICALS INC 0.2%
Value $5.668M Shares 1,691,857 Est. Cost Unrealized
VRTX VERTEX PHARMACEUTICALS INC 0.2%
Value $5.552M Shares 78,500 Est. Cost Unrealized
QURE UNIQURE NV 0.2%
Value $5.453M Shares 350,000 Est. Cost Unrealized
XOMA CORP DEL 0.2%
Value $5.21M Shares 1,000,000 Est. Cost Unrealized
CANCER GENETICS INC 0.2%
Value $4.799M Shares 318,012 Est. Cost Unrealized
LIPOSCIENCE INC 0.2%
Value $4.41M Shares 1,382,350 Est. Cost Unrealized
NANOSPHERE INC 0.2%
Value $4.3M Shares 2,000,000 Est. Cost Unrealized
MANNKIND CORP 0.2%
Value $4.02M Shares 1,000,000 Est. Cost Unrealized
RIGEL PHARMACEUTICALS INC 0.2%
Value $3.986M Shares 1,027,443 Est. Cost Unrealized
DERMA SCIENCES INC 0.2%
Value $3.804M Shares 300,000 Est. Cost Unrealized
REVANCE THERAPEUTICS INC 0.2%
Value $3.676M Shares 116,689 Est. Cost Unrealized
EGRX EAGLE PHARMACEUTICALS INC 0.1%
Value $3.629M Shares 284,653 Est. Cost Unrealized
BIIB BIOGEN IDEC INC 0.1%
Value $3.594M Shares 11,750 Est. Cost Unrealized
AUXILIUM PHARMACEUTICALS INC 0.1%
Value $3.278M Shares 2,500,000 Est. Cost Unrealized
INTRA CELLULAR THERAPIES INC 0.1%
Value $3.117M Shares 171,437 Est. Cost Unrealized
OXYGEN BIOTHERAPEUTICS INC 0.1%
Value $3.053M Shares 550,000 Est. Cost Unrealized
SUNESIS PHARMACEUTICALS INC 0.1%
Value $3.012M Shares 455,741 Est. Cost Unrealized
TARGACEPT INC 0.1%
Value $2.931M Shares 617,000 Est. Cost Unrealized
OCERA THERAPEUTICS INC 0.1%
Value $2.755M Shares 261,119 Est. Cost Unrealized
ILMN ILLUMINA INC 0.1%
Value $2.631M Shares 17,697 Est. Cost Unrealized
TONIX PHARMACEUTICALS HLDG C 0.1%
Value $2.545M Shares 244,524 Est. Cost Unrealized
PALATIN TECHNOLOGIES INC 0.1%
Value $2.46M Shares 2,000,000 Est. Cost Unrealized
THERAPEUTICSMD INC 0.1%
Value $2.373M Shares 376,049 Est. Cost Unrealized
MERGE HEALTHCARE INC 0.1%
Value $2.341M Shares 959,580 Est. Cost Unrealized
EXEL EXELIXIS INC 0.1%
Value $1.77M Shares 500,000 Est. Cost Unrealized
REGN REGENERON PHARMACEUTICALS 0.1%
Value $1.441M Shares 4,799 Est. Cost Unrealized
EXEL EXELIXIS INC 0.1%
Value $1.416M Shares 400,000 Est. Cost Unrealized
A AGILENT TECHNOLOGIES INC 0.1%
Value $1.398M Shares 25,000 Est. Cost Unrealized
NBIX NEUROCRINE BIOSCIENCES INC 0.1%
Value $1.256M Shares 77,994 Est. Cost Unrealized
FURIEX PHARMACEUTICALS INC 0.0%
Value $1.161M Shares 13,340 Est. Cost Unrealized
HOLX HOLOGIC INC 0.0%
Value $914K Shares 42,500 Est. Cost Unrealized
MYLAN INC 0.0%
Value $855K Shares 17,500 Est. Cost Unrealized
MEDIVATION INC 0.0%
Value $805K Shares 12,500 Est. Cost Unrealized
AQUINOX PHARMACEUTICALS INC 0.0%
Value $794K Shares 62,387 Est. Cost Unrealized
SYNERON MEDICAL LTD 0.0%
Value $430K Shares 34,518 Est. Cost Unrealized
ACHILLION PHARMACEUTICALS IN 0.0%
Value $305K Shares 92,804 Est. Cost Unrealized
NOVADAQ TECHNOLOGIES INC 0.0%
Value $223K Shares 10,000 Est. Cost Unrealized