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Rock Springs Capital Management Portfolio holdings

AUM $2.05B
1-Year Est. Return 161.37%
This Fund
S&P 500
This Quarter Est. Return
+33.73%
1 Year Est. Return
+161.37%
3 Year Est. Return
+342.48%
5 Year Est. Return
+531.16%
10 Year Est. Return
+6,258.71%
AUM
$2.59B
AUM Growth
+$475M
Cap. Flow
-$61.5M
Cap. Flow %
-2.37%
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 97.8%
2 Miscellaneous 1.82%
3 Consumer Staples 0.38%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
INGN icon
126
Inogen
INGN
$138M
– –
-117,000
Closed -$14.5M
ZBH icon
127
Zimmer Biomet
ZBH
$18.6B
– –
-121,025
Closed -$12.2M
GTHX
128
DELISTED
G1 Therapeutics, Inc. Common Stock
GTHX
– –
-100,000
Closed -$1.92M
APTX
129
DELISTED
Aptinyx Inc. Common Stock
APTX
– –
-305,000
Closed -$5.04M
LOXO
130
DELISTED
Loxo Oncology, Inc
LOXO
– –
-241,500
Closed -$33.8M
TSRO
131
DELISTED
TESARO, Inc.
TSRO
– –
-601,700
Closed -$44.7M
2 3 4 5
6

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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 98% of assets, down from 99% a quarter earlier, followed by Miscellaneous and 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.