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Rock Springs Capital Management Portfolio holdings

AUM $1.7B
1-Year Est. Return 93.03%
This Fund
S&P 500
This Quarter Est. Return
+15.54%
1 Year Est. Return
+93.03%
3 Year Est. Return
+228.43%
5 Year Est. Return
+368.14%
10 Year Est. Return
+4,607.77%
AUM
$855M
AUM Growth
+$208M
Cap. Flow
+$133M
Cap. Flow %
15.53%
Top 10 Hldgs %
33.51%
Holding
104
New
21
Increased
54
Reduced
10
Closed
11

Top Buys

Rank Stock Value
1
COV
COVIDIEN PLC COM SHS NEW (IRELAND)
COV
+$28.3M
2
STJ
St Jude Medical
STJ
+$21.6M
3
TRNX
TORNIER N V SHARES (NLD)
TRNX
+$9.49M
4
SLXP
SALIX PHARMACEUTICALS LTD DEL
SLXP
+$9.39M
5
XLV icon
State Street Health Care Select Sector SPDR ETF
XLV
+$9.37M

Top Sells

Rank Stock Value
1
TMO icon
Thermo Fisher Scientific
TMO
+$13.2M
2
GILD icon
Gilead Sciences
GILD
+$11.2M
3
PCRX icon
Pacira BioSciences
PCRX
+$9.89M
4
ATHN
Athenahealth, Inc.
ATHN
+$8.92M
5
CAH icon
Cardinal Health
CAH
+$6.91M

Sector Composition

Rank Sector Weight
1 Healthcare 73.14%
2 Financials 1.36%
3 Technology 0.94%
4 Industrials 0.77%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
ARAV
101
DELISTED
Aravive, Inc. Common Stock
ARAV
– –
-20,709
Closed -$2.36M
ATHN
102
DELISTED
Athenahealth, Inc.
ATHN
– –
-67,750
Closed -$8.92M
FEIC
103
DELISTED
FEI COMPANY
FEIC
– –
-47,000
Closed -$3.54M
CVD
104
DELISTED
COVANCE INC.
CVD
– –
-46,000
Closed -$3.62M
1 2 3 4
5

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Rock Springs Capital Management's Q4 2014 Portfolio in Review

As of Q4 2014, Rock Springs Capital Management held 104 positions worth $855M, up 32% from $646M the previous quarter. Its ten largest holdings account for 34% of the portfolio.

Rock Springs Capital Management deployed $133M of net new capital in Q4 2014, opening 21 new positions and adding to 54 existing holdings. Its largest new stake was COVIDIEN PLC COM SHS NEW (IRELAND): 295,000 shares worth $30.2M.

By sector, the portfolio is most concentrated in Healthcare at 73% of assets, down from 79% a quarter earlier, followed by Financials and Technology.

On the sell side, the largest reduction was Gilead Sciences, an estimated $11.2M trimmed.

  • Rock Springs Capital Management's largest Q4 2014 buy was COVIDIEN PLC COM SHS NEW (IRELAND): 295,000 shares worth $30.2M.
  • Rock Springs Capital Management added most to Acadia Healthcare in Q4 2014, an estimated $7.38M increase.
  • Rock Springs Capital Management's biggest Q4 2014 reduction was Gilead Sciences, cutting an estimated $11.2M.
  • Rock Springs Capital Management fully exited Thermo Fisher Scientific in Q4 2014, selling an estimated $13.2M.
  • Rock Springs Capital Management's ten largest holdings make up 34% of its $855M portfolio in Q4 2014.
  • Rock Springs Capital Management opened 21 new positions and closed 11 in Q4 2014.
  • Rock Springs Capital Management's portfolio value rose 32% quarter-over-quarter to $855M.

Based on Rock Springs Capital Management's 13F filing for Q4 2014, filed 17 Feb 2015.