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ROCK SPRINGS CAPITAL MANAGEMENT LP Information

650 SOUTH EXETER STREET, BALTIMORE, Maryland, 21202, (410) 220-0129

Report Date: 03/31/2019

Position Statistics

Total Positions 127
New Positions 6
Increased Positions 52
Decreased Positions 20
Positions with Activity 72
Sold Out Positions 7
Total Mkt Value (in $ millions) 2,478

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

Sector Weighting

Energy
Basic Materials
Industrials
Consumer Cyclicals
Consumer Non-Cyclicals 0.45%
Financials
Healthcare 99.55%
Technology
Telecommunication Services
Utilities

127 Positions as of 03/31/2019

Company Class Value of Shares ($1,000s) ▼ Change in Value ($1,000s) Change (%) Shares Held
UNITEDHEALTH GROUP INC COM 147,537 -3,021 (2.01) 591,000
GW PHARMACEUTICALS PLC ADS 120,589 17,313 16.76 700,000
WELLCARE HEALTH PLANS INC COM 94,598 -20,546 (17.84) 320,000
AMARIN CORP PLC SPONS ADR NEW 83,351 903 1.10 4,525,000
INTUITIVE SURGICAL INC COM NEW 80,185 263 .33 152,500
NEUROCRINE BIOSCIENCES INC COM 71,360 4,724 7.09 844,500
HCA HEALTHCARE INC COM 59,646 New 455,000
SPARK THERAPEUTICS INC COM 54,777 New 537,500
PACIRA BIOSCIENCES COM 53,900 New 1,250,000
ENCOMPASS HEALTH CORP COM 49,280 4,620 10.35 800,000
EXACT SCIENCES CORP COM 45,167 1,365 3.12 397,000
TELEFLEX INC COM 43,264 New 130,000
SAREPTA THERAPEUTICS INC COM 42,595 955 2.29 334,500
BOSTON SCIENTIFIC CORP COM 40,750 2,311 6.01 970,000
IRHYTHM TECHNOLOGIES INC COM 39,045 1,377 3.66 499,615
PENUMBRA INC COM 37,033 New 225,000
VERTEX PHARMACEUTICALS INC COM 36,747 New 203,000
STRYKER CORP COM 36,602 New 179,000
EDWARDS LIFESCIENCES CORP COM 35,188 New 183,500
ULTRAGENYX PHARMACEUTICAL INC COM 34,939 9,337 36.47 580,000