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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
+7.42%
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
$2.34B
AUM Growth
+$140M
Cap. Flow
+$87.9M
Cap. Flow %
3.75%
Top 10 Hldgs %
23.56%
Holding
168
New
20
Increased
60
Reduced
15
Closed
19

Top Buys

Rank Stock Value
1
ABBV icon
AbbVie
ABBV
+$65.9M
2
BMY icon
Bristol-Myers Squibb
BMY
+$38.6M
3
HCA icon
HCA Healthcare
HCA
+$36.9M
4
COR icon
Cencora
COR
+$28.3M
5
DVA icon
DaVita
DVA
+$24M

Top Sells

Rank Stock Value
1
AAAP
Advanced Accelerator Applications S.A.
AAAP
+$67.4M
2
CI icon
Cigna
CI
+$65.2M
3
MRK icon
Merck
MRK
+$47.9M
4
JNJ icon
Johnson & Johnson
JNJ
+$27.9M
5
WTW icon
Willis Towers Watson
WTW
+$18.5M

Sector Composition

Rank Sector Weight
1 Healthcare 87.66%
2 Financials 1.72%
3 Consumer Discretionary 0%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
SGEN
151
DELISTED
Seagen Inc. Common Stock
SGEN
– –
-125,000
Closed -$6.69M
KDNY
152
DELISTED
Chinook Therapeutics, Inc. Common Stock
KDNY
– –
-83,000
Closed -$3.11M
TTPH
153
DELISTED
Tetraphase Pharmaceuticals, Inc.
TTPH
– –
-47,500
Closed -$5.99M
ABLX
154
DELISTED
Ablynx NV
ABLX
– –
-250,000
Closed -$6.25M
JUNO
155
DELISTED
Juno Therapeutics, Inc.
JUNO
– –
-230,000
Closed -$10.5M
AGN.PRA
156
DELISTED
Allergan plc
AGN.PRA
– –
-5,000
Closed -$2.93M
AAAP
157
DELISTED
Advanced Accelerator Applications S.A.
AAAP
– –
-825,500
Closed -$67.4M
OREX
158
DELISTED
Orexigen Therapeutics, Inc.
OREX
– –
-165,300
Closed -$213K
AFAM
159
DELISTED
Almost Family Inc
AFAM
– –
-147,540
Closed -$8.17M
3 4 5 6
7

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Rock Springs Capital Management's Q1 2018 Portfolio in Review

As of Q1 2018, Rock Springs Capital Management held 168 positions worth $2.34B, up 6.4% from $2.2B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

Rock Springs Capital Management deployed $87.9M of net new capital in Q1 2018, opening 20 new positions and adding to 60 existing holdings. Its largest new stake was AbbVie: 600,000 shares worth $56.8M.

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

On the sell side, the largest reduction was PRA Health Sciences, Inc., an estimated $7.33M trimmed.

  • Rock Springs Capital Management's largest Q1 2018 buy was AbbVie: 600,000 shares worth $56.8M.
  • Rock Springs Capital Management added most to Bristol-Myers Squibb in Q1 2018, an estimated $38.6M increase.
  • Rock Springs Capital Management's biggest Q1 2018 reduction was PRA Health Sciences, Inc., cutting an estimated $7.33M.
  • Rock Springs Capital Management fully exited Advanced Accelerator Applications S.A. in Q1 2018, selling an estimated $67.4M.
  • Rock Springs Capital Management's ten largest holdings make up 24% of its $2.34B portfolio in Q1 2018.
  • Rock Springs Capital Management opened 20 new positions and closed 19 in Q1 2018.
  • Rock Springs Capital Management's portfolio value rose 6.4% quarter-over-quarter to $2.34B.

Based on Rock Springs Capital Management's 13F filing for Q1 2018, filed 15 May 2018.