We are live on ! Find out more
RSCM

Rock Springs Capital Management Portfolio holdings

AUM $1.7B
1-Year Est. Return 93.03%
This Fund
S&P 500
This Quarter Est. Return
-17.49%
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
$2.12B
AUM Growth
-$643M
Cap. Flow
-$73.8M
Cap. Flow %
-3.48%
Top 10 Hldgs %
32.59%
Holding
150
New
6
Increased
39
Reduced
39
Closed
17

Top Buys

Rank Stock Value
1
WCG
Wellcare Health Plans, Inc.
WCG
+$41.3M
2
GWPH
GW Pharmaceuticals Plc American Depositary Shares
GWPH
+$26.2M
3
NBIX icon
Neurocrine Biosciences
NBIX
+$13.8M
4
SGEN
Seagen Inc. Common Stock
SGEN
+$12.7M
5
RARE icon
Ultragenyx Pharmaceutical
RARE
+$12.3M

Top Sells

Rank Stock Value
1
ABBV icon
AbbVie
ABBV
+$30.7M
2
MOH icon
Molina Healthcare
MOH
+$26.6M
3
ARNA
Arena Pharmaceuticals Inc
ARNA
+$17.3M
4
MDGL icon
Madrigal Pharmaceuticals
MDGL
+$15.6M
5
ECYT
Endocyte, Inc. Common Stock
ECYT
+$15.1M

Sector Composition

Rank Sector Weight
1 Healthcare 88.36%
2 Consumer Staples 0.36%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
UNH icon
1
UnitedHealth
UNH
$382B
$150M 7.09%
603,100
+14,002
+2% +$3.7M
WCG
2
DELISTED
Wellcare Health Plans, Inc.
WCG
$92M 4.34%
389,500
+154,000
+65% +$41.3M
ISRG icon
3
Intuitive Surgical
ISRG
$127B
$72.8M 3.44%
456,000
+31,800
+7% +$5.39M
AMRN
4
Amarin Corp
AMRN
$297M
$60.9M 2.88%
223,800
+7,550
+3% +$2.75M
GWPH
5
DELISTED
GW Pharmaceuticals Plc American Depositary Shares
GWPH
$58.4M 2.76%
599,500
+199,500
+50% +$26.2M
HCA icon
6
HCA Healthcare
HCA
$90.6B
$56.6M 2.67%
455,000
– –
NBIX icon
7
Neurocrine Biosciences
NBIX
$18.2B
$56.3M 2.66%
788,600
+143,600
+22% +$13.8M
PCRX icon
8
Pacira BioSciences
PCRX
$1.04B
$53.8M 2.54%
1,250,000
-42,479
-3% -$1.98M
EHC icon
9
Encompass Health
EHC
$11.3B
$44.7M 2.11%
911,325
+60,964
+7% +$3.47M
TSRO
10
DELISTED
TESARO, Inc.
TSRO
$44.7M 2.11%
601,700
-133,300
-18% -$6.41M
MOH icon
11
Molina Healthcare
MOH
$10.4B
$39.7M 1.88%
342,000
-203,000
-37% -$26.6M
SRPT icon
12
Sarepta Therapeutics
SRPT
$1.64B
$35.7M 1.68%
327,000
+16,500
+5% +$2.06M
LOXO
13
DELISTED
Loxo Oncology, Inc
LOXO
$33.8M 1.6%
241,500
+38,519
+19% +$5.85M
VRTX icon
14
Vertex Pharmaceuticals
VRTX
$123B
$33.6M 1.59%
203,000
+7,000
+4% +$1.21M
TFX icon
15
Teleflex
TFX
$5.96B
$33.6M 1.59%
130,000
+6,000
+5% +$1.52M
IRTC icon
16
iRhythm Holdings
IRTC
$4.02B
$33.5M 1.58%
482,000
+2,000
+0.4% +$152K
BSX icon
17
Boston Scientific
BSX
$68.4B
$32.3M 1.53%
915,000
+115,000
+14% +$4.17M
ONC
18
BeOne Medicines Ltd
ONC
$33.9B
$30.1M 1.42%
214,800
-200
-0.1% -$26.5K
EW icon
19
Edwards Lifesciences
EW
$49.4B
$28.1M 1.33%
550,500
+10,500
+2% +$531K
SYK icon
20
Stryker
SYK
$135B
$28.1M 1.32%
179,000
– –
COLL icon
21
Collegium Pharmaceutical
COLL
$1.18B
$27.6M 1.3%
1,605,105
-44,995
-3% -$770K
PEN icon
22
Penumbra
PEN
$12.6B
$27.5M 1.3%
225,000
-10,200
-4% -$1.37M
WMGI
23
DELISTED
Wright Medical Group Inc
WMGI
$27.2M 1.28%
1,000,000
– –
MDGL icon
24
Madrigal Pharmaceuticals
MDGL
$12.6B
$27.2M 1.28%
241,000
-101,000
-30% -$15.6M
EXAS
25
DELISTED
Exact Sciences
EXAS
$24.3M 1.15%
385,000
– –
1
2 3 4 5

Similar funds

AAM
Alpine Associates Management Palm Beach, Florida $1.7B AUM 97.55% 1-Year Est. Return
SGI
Summit Global Investments Bountiful, Utah $1.69B AUM 12.13% 1-Year Est. Return
ACM
ADAR1 Capital Management Austin, Texas $1.7B AUM 340.85% 1-Year Est. Return
BCM
BlueCrest Capital Management St Helier, Jersey $1.69B AUM 20.01% 1-Year Est. Return
ISS
Intesa Sanpaolo SpA. Turin, Italy $1.69B AUM
PP
PDT Partners New York $1.69B AUM 74.01% 1-Year Est. Return
FDP
Financiere des Professionnels Montreal, Quebec, Canada $1.71B AUM 21.77% 1-Year Est. Return
GAM
Goldentree Asset Management New York $1.69B AUM 10.69% 1-Year Est. Return

Rock Springs Capital Management's Q4 2018 Portfolio in Review

As of Q4 2018, Rock Springs Capital Management held 150 positions worth $2.12B, down 23% from $2.76B the previous quarter. Its ten largest holdings account for 33% of the portfolio.

Rock Springs Capital Management withdrew a net $73.8M in Q4 2018, closing 17 positions and reducing 39 holdings. Its most notable exit was AbbVie, an estimated $30.7M position sold in full.

By sector, the portfolio is most concentrated in Healthcare at 88% of assets, down from 90% a quarter earlier, followed by Consumer Staples.

Against the trend, Rock Springs Capital Management opened a new position in Seagen Inc. Common Stock worth $11.5M.

  • Rock Springs Capital Management's largest Q4 2018 buy was Seagen Inc. Common Stock: 202,500 shares worth $11.5M.
  • Rock Springs Capital Management added most to Wellcare Health Plans, Inc. in Q4 2018, an estimated $41.3M increase.
  • Rock Springs Capital Management's biggest Q4 2018 reduction was Molina Healthcare, cutting an estimated $26.6M.
  • Rock Springs Capital Management fully exited AbbVie in Q4 2018, selling an estimated $30.7M.
  • Rock Springs Capital Management's ten largest holdings make up 33% of its $2.12B portfolio in Q4 2018.
  • Rock Springs Capital Management opened 6 new positions and closed 17 in Q4 2018.
  • Rock Springs Capital Management's portfolio value fell 23% quarter-over-quarter to $2.12B.

Based on Rock Springs Capital Management's 13F filing for Q4 2018, filed 14 Feb 2019.