DEERFIELD MANAGEMENT CO

Q4 2013 13F-HR Detailed Holdings

Location
New York, NY
Holdings as of
12/31/2013
Date filed
2/14/2014
Form type
13F-HR
Num holdings
106
Total value ($000)
$1,930,346
Net value change ($000)
New positions
81
Sold out positions
0
Turnover %
100.0%
Sector allocation + QoQ delta (equities-only)

Holdings broken out by other managers reported in the original SEC filing. View aggregated holdings

You are on the SEC detailed breakdown page. Rows are shown as reported in the filing (including other manager, discretion, and voting authority fields), and are not merged like the standard holdings view. Switch to aggregated holdings.

Snapshot: Change Analysis

Compared to previous filing: —
Methodology: sector metrics are equities-only; instrument mix chart is ex-options; options exposure is shown separately. Why this matters.
Top Adds (Value $000, Stocks/ETFs)
AUXILIUM PHARMACEUTICALS 85,270
QUESTCOR PHARMACEUTICALS INC COM 82,018
ARRAY BIOPHARMA INC 56,289
NXSTAGE MEDICAL INC 55,706
INFIQ 54,988
MJC 45,341
HUM 42,802
MRK 36,286
Horizon Therapeutics PLC Com 35,348
FLAMEL TECHNOLOGIES SA 34,884
Top Reduces (Value $000, Stocks/ETFs)
Instrument mix + QoQ Δ (ex-options)
Derivatives reported exposure ($000): 156,765 (8.1% of total reported value)
How this table is calculated: SEC VALUE ($000) is used as reported. For derivatives (PUT/CALL/WARRANT/RIGHT), SEC value represents reported underlying exposure, not premium cash paid/received. Column % is bucket-based: non-options share is calculated inside non-option total, options share is calculated inside options total. Details.
Filter:
Instrument:
Issuer Name Ticker Sector Industry Class History Value ($000) % Shares Shares Δ Shares Δ% Value Δ ($000) Value Δ% Principal Option Type Discretion Other Manager Sole Shared None

Other Managers

Num Name File Number
1 Flynn Management LLC 028-11827