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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
+8.03%
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
$646M
AUM Growth
+$88.7M
Cap. Flow
+$74.4M
Cap. Flow %
11.51%
Top 10 Hldgs %
39.44%
Holding
93
New
15
Increased
55
Reduced
6
Closed
10

Top Buys

Rank Stock Value
1
HCA icon
HCA Healthcare
HCA
+$15.4M
2
ABBV icon
AbbVie
ABBV
+$13.9M
3
MDT icon
Medtronic
MDT
+$7.15M
4
DHR icon
Danaher
DHR
+$6.5M
5
AGN
Allergan plc
AGN
+$4.92M

Top Sells

Rank Stock Value
1
ITMN
INTERMUNE INC
ITMN
+$23.8M
2
STJ
St Jude Medical
STJ
+$6.92M
3
WBA
Walgreens Boots Alliance
WBA
+$5.93M
4
FRX
FOREST LABORATORIES INC
FRX
+$5.35M
5
CRL icon
Charles River Laboratories
CRL
+$3.81M

Sector Composition

Rank Sector Weight
1 Healthcare 79.22%
2 Industrials 2.23%
3 Financials 1.33%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
ARWR icon
76
Arrowhead Research
ARWR
$12.4B
$1.7M 0.26%
115,000
– –
RCPT
77
DELISTED
RECEPTOS INC COM STK (DE)
RCPT
$1.4M 0.22%
+22,500
New +$1.08M
ETRM
78
DELISTED
EnteroMedics Inc.
ETRM
$1.38M 0.21%
1,071
+261
+32% +$383K
FPRX
79
DELISTED
Five Prime Therapeutics, Inc.
FPRX
$1.35M 0.21%
115,000
-10,000
-8% -$126K
XNPT
80
DELISTED
XENOPORT, INC.
XNPT
$785K 0.12%
+146,000
New +$711K
HRTX icon
81
Heron Therapeutics
HRTX
$92.9M
$583K 0.09%
+70,000
New +$652K
DARE icon
82
Dare Bioscience
DARE
$21M
$361K 0.06%
714
– –
ADVM
83
DELISTED
Adverum Biotechnologies
ADVM
$246K 0.04%
+720
New +$214K
ALKS icon
84
Alkermes
ALKS
$8.25B
– –
-41,250
Closed -$2.08M
CRL icon
85
Charles River Laboratories
CRL
$12.8B
– –
-71,250
Closed -$3.81M
EXEL icon
86
Exelixis
EXEL
$13.4B
– –
-200,000
Closed -$678K
REGN icon
87
Regeneron Pharmaceuticals
REGN
$80.8B
– –
-7,500
Closed -$2.12M
WBA
88
DELISTED
Walgreens Boots Alliance
WBA
– –
-80,000
Closed -$5.93M
ABCO
89
DELISTED
Advisory Board Co
ABCO
– –
-72,500
Closed -$3.76M
STJ
90
DELISTED
St Jude Medical
STJ
– –
-100,000
Closed -$6.92M
CFN
91
DELISTED
CAREFUSION CORPORATION
CFN
– –
-68,000
Closed -$3.02M
ITMN
92
DELISTED
INTERMUNE INC
ITMN
– –
-538,000
Closed -$23.8M
FRX
93
DELISTED
FOREST LABORATORIES INC
FRX
– –
-54,000
Closed -$5.35M
1 2 3
4

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Rock Springs Capital Management's Q3 2014 Portfolio in Review

As of Q3 2014, Rock Springs Capital Management held 93 positions worth $646M, up 16% from $558M the previous quarter. Its ten largest holdings account for 39% of the portfolio.

Rock Springs Capital Management deployed $74.4M of net new capital in Q3 2014, opening 15 new positions and adding to 55 existing holdings. Its largest new stake was Danaher: 126,466 shares worth $6.46M.

By sector, the portfolio is most concentrated in Healthcare at 79% of assets, up from 76% a quarter earlier, followed by Industrials and Financials.

On the sell side, the largest reduction was Cigna, an estimated $1.87M trimmed.

  • Rock Springs Capital Management's largest Q3 2014 buy was Danaher: 126,466 shares worth $6.46M.
  • Rock Springs Capital Management added most to HCA Healthcare in Q3 2014, an estimated $15.4M increase.
  • Rock Springs Capital Management's biggest Q3 2014 reduction was Cigna, cutting an estimated $1.87M.
  • Rock Springs Capital Management fully exited INTERMUNE INC in Q3 2014, selling an estimated $23.8M.
  • Rock Springs Capital Management's ten largest holdings make up 39% of its $646M portfolio in Q3 2014.
  • Rock Springs Capital Management opened 15 new positions and closed 10 in Q3 2014.
  • Rock Springs Capital Management's portfolio value rose 16% quarter-over-quarter to $646M.

Based on Rock Springs Capital Management's 13F filing for Q3 2014, filed 14 Nov 2014.