DEERFIELD MANAGEMENT CO Information

780 THIRD AVENUE, NEW YORK, New York, 10017, (212) 551-1600

Report Date: 03/31/2015

Position Statistics

Total Positions 131
New Positions 43
Increased Positions 67
Decreased Positions 50
Positions with Activity 117
Sold Out Positions 23
Total Mkt Value (in $ millions) 2,346

Institutional Holdings information is filed by major institutions on form 13-F with the Securities and Exchange Commission.

Sector Weighting

Basic Materials
Capital Goods
Conglomerates 0.04%
Consumer Cyclical
Consumer/Non-Cyclical
Energy
Financial 7.02%
Healthcare 60.73%
Services 2.87%
Technology 0.26%
Transportation
Utilities

131 Positions as of 03/31/2015

Company Class Value of Shares ($1,000s) ▼ Change in Value ($1,000s) Change (%) Shares Held
HORIZON PHARMA PLC SHS 441,859 37,774 9.35 12,792,689
ABBVIE INC COM 104,649 104,649 New 1,534,000
BLUEBIRD BIO INC COM 103,042 -35,847 (25.81) 631,309
FLAMEL TECHNOLOGIES SA SPONSORED ADR 85,285 -24,828 (22.55) 4,072,809
ARRAY BIOPHARMA INC COM 80,475 New 11,834,595
NXSTAGE MEDICAL INC COM 72,748 3,751 5.44 5,073,050
DAVITA HEALTHCARE PARTNERS INC COM 58,072 23,467 67.82 730,000
VANDA PHARMACEUTICALS INC COM 51,925 -71 (0.14) 4,134,157
UNIVERSAL AMERN CORP NEW COM 50,357 -4,162 (7.63) 5,186,148
EHEALTH INC COM 44,790 13,720 44.16 3,264,588
GW PHARMACEUTICALS PLC ADS 44,553 44,553 New 363,700
WALGREENS BOOTS ALLIANCE INC COM 43,788 43,788 New 512,800
XENCOR INC COM 42,631 42,631 New 1,895,535
SAGE THERAPEUTICS INC COM 42,193 23,583 126.73 595,443
INFINITY PHARMACEUTICALS INC COM 42,062 1,170 2.86 3,968,155
ARENA PHARMACEUTICALS INC COM 41,717 10,286 32.73 9,229,379
INSMED INC COM PAR $.01 39,655 -14,929 (27.35) 1,628,531
SPARK THERAPEUTICS INC COM 38,452 38,452 New 631,192
ZAFGEN INC COM 36,935 36,935 New 1,050,178
GLAXOSMITHKLINE PLC SPONSORED ADR 36,630 13,000 55.01 873,185


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