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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
+33.73%
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
$2.59B
AUM Growth
+$475M
Cap. Flow
-$30.8M
Cap. Flow %
-1.19%
Top 10 Hldgs %
31.64%
Holding
140
New
7
Increased
46
Reduced
13
Closed
9

Top Buys

Rank Stock Value
1
CVET
Covetrus, Inc. Common Stock
CVET
+$23.1M
2
PTLA
Portola Pharmaceuticals, Inc.
PTLA
+$16.6M
3
CI icon
Cigna
CI
+$16.4M
4
GWPH
GW Pharmaceuticals Plc American Depositary Shares
GWPH
+$15M
5
TVTX icon
Travere Therapeutics
TVTX
+$9.5M

Top Sells

Rank Stock Value
1
TSRO
TESARO, Inc.
TSRO
+$44.7M
2
LOXO
Loxo Oncology, Inc
LOXO
+$33.8M
3
MOH icon
Molina Healthcare
MOH
+$18.2M
4
WCG
Wellcare Health Plans, Inc.
WCG
+$18M
5
BIIB icon
Biogen
BIIB
+$15.7M

Sector Composition

Rank Sector Weight
1 Healthcare 85.37%
2 Consumer Staples 0.38%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
UNH icon
1
UnitedHealth
UNH
$382B
$146M 5.63%
591,000
-12,100
-2% -$3.09M
GWPH
2
DELISTED
GW Pharmaceuticals Plc American Depositary Shares
GWPH
$118M 4.55%
700,000
+100,500
+17% +$15M
AMRN
3
Amarin Corp
AMRN
$297M
$93.9M 3.62%
226,250
+2,450
+1% +$884K
ISRG icon
4
Intuitive Surgical
ISRG
$127B
$87M 3.35%
457,500
+1,500
+0.3% +$267K
WCG
5
DELISTED
Wellcare Health Plans, Inc.
WCG
$86.3M 3.33%
320,000
-69,500
-18% -$18M
NBIX icon
6
Neurocrine Biosciences
NBIX
$18.2B
$74.4M 2.87%
844,500
+55,900
+7% +$4.67M
ONCE
7
DELISTED
Spark Therapeutics, Inc. Common Stock
ONCE
$61.2M 2.36%
537,500
– –
HCA icon
8
HCA Healthcare
HCA
$90.6B
$59.3M 2.29%
455,000
– –
PCRX icon
9
Pacira BioSciences
PCRX
$1.04B
$47.6M 1.83%
1,250,000
– –
EHC icon
10
Encompass Health
EHC
$11.3B
$46.7M 1.8%
1,005,600
+94,275
+10% +$4.78M
RARE icon
11
Ultragenyx Pharmaceutical
RARE
$2.46B
$40.2M 1.55%
580,000
+155,000
+36% +$8.86M
SRPT icon
12
Sarepta Therapeutics
SRPT
$1.64B
$39.9M 1.54%
334,500
+7,500
+2% +$964K
TFX icon
13
Teleflex
TFX
$5.96B
$39.3M 1.51%
130,000
– –
IRTC icon
14
iRhythm Holdings
IRTC
$4.02B
$37.5M 1.44%
499,615
+17,615
+4% +$1.51M
VRTX icon
15
Vertex Pharmaceuticals
VRTX
$123B
$37.3M 1.44%
203,000
– –
BSX icon
16
Boston Scientific
BSX
$68.4B
$37.2M 1.44%
970,000
+55,000
+6% +$2.1M
SYK icon
17
Stryker
SYK
$135B
$35.4M 1.36%
179,000
– –
EW icon
18
Edwards Lifesciences
EW
$49.4B
$35.1M 1.35%
550,500
– –
EXAS
19
DELISTED
Exact Sciences
EXAS
$34.4M 1.33%
397,000
+12,000
+3% +$1.02M
PEN icon
20
Penumbra
PEN
$12.6B
$33.1M 1.28%
225,000
– –
ALXN
21
DELISTED
Alexion Pharmaceuticals
ALXN
$32.8M 1.26%
242,500
– –
MDGL icon
22
Madrigal Pharmaceuticals
MDGL
$12.6B
$32M 1.23%
255,250
+14,250
+6% +$1.77M
PTLA
23
DELISTED
Portola Pharmaceuticals, Inc.
PTLA
$30.4M 1.17%
875,000
+575,000
+192% +$16.6M
ALGN icon
24
Align Technology
ALGN
$12.9B
$29.9M 1.15%
105,000
– –
MOH icon
25
Molina Healthcare
MOH
$10.4B
$29.5M 1.14%
207,500
-134,500
-39% -$18.2M
1
2 3 4 5

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Rock Springs Capital Management's Q1 2019 Portfolio in Review

As of Q1 2019, Rock Springs Capital Management held 140 positions worth $2.59B, up 22% from $2.12B the previous quarter. Its ten largest holdings account for 32% of the portfolio.

Rock Springs Capital Management's Q1 2019 filing shows 7 new, 46 increased, 13 reduced and 9 closed positions. Its largest new stake was Covetrus, Inc. Common Stock: 650,000 shares worth $20.7M. The largest sale was TESARO, Inc., an estimated $44.7M.

By sector, the portfolio is most concentrated in Healthcare at 85% of assets, down from 88% a quarter earlier, followed by Consumer Staples.

  • Rock Springs Capital Management's largest Q1 2019 buy was Covetrus, Inc. Common Stock: 650,000 shares worth $20.7M.
  • Rock Springs Capital Management added most to Portola Pharmaceuticals, Inc. in Q1 2019, an estimated $16.6M increase.
  • Rock Springs Capital Management's biggest Q1 2019 reduction was Molina Healthcare, cutting an estimated $18.2M.
  • Rock Springs Capital Management fully exited TESARO, Inc. in Q1 2019, selling an estimated $44.7M.
  • Rock Springs Capital Management's ten largest holdings make up 32% of its $2.59B portfolio in Q1 2019.
  • Rock Springs Capital Management opened 7 new positions and closed 9 in Q1 2019.
  • Rock Springs Capital Management's portfolio value rose 22% quarter-over-quarter to $2.59B.

Based on Rock Springs Capital Management's 13F filing for Q1 2019, filed 15 May 2019.