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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
+10.56%
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
$1.98B
AUM Growth
+$247M
Cap. Flow
+$143M
Cap. Flow %
7.22%
Top 10 Hldgs %
27.18%
Holding
159
New
18
Increased
48
Reduced
15
Closed
10

Top Buys

Rank Stock Value
1
MDT icon
Medtronic
MDT
+$33.7M
2
UNH icon
UnitedHealth
UNH
+$26.1M
3
AET
Aetna Inc
AET
+$23.7M
4
MRSN
Mersana Therapeutics
MRSN
+$21.1M
5
TMO icon
Thermo Fisher Scientific
TMO
+$18.5M

Top Sells

Rank Stock Value
1
LLY icon
Eli Lilly
LLY
+$27.3M
2
SHPG
Shire pic
SHPG
+$24.2M
3
BMY icon
Bristol-Myers Squibb
BMY
+$21.9M
4
AMGN icon
Amgen
AMGN
+$16.1M
5
PTHN
Patheon N.V.
PTHN
+$10.5M

Sector Composition

Rank Sector Weight
1 Healthcare 79.63%
2 Financials 3.78%
3 Consumer Discretionary 1.13%
4 Industrials 0%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
ATHN
151
DELISTED
Athenahealth, Inc.
ATHN
– –
-62,750
Closed -$7.07M
EVHC
152
DELISTED
Envision Healthcare Holdings Inc
EVHC
– –
-145,000
Closed -$8.89M
PTHN
153
DELISTED
Patheon N.V.
PTHN
– –
-400,000
Closed -$10.5M
SHPG
154
DELISTED
Shire pic
SHPG
– –
-138,900
Closed -$24.2M
3 4 5 6
7

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Rock Springs Capital Management's Q2 2017 Portfolio in Review

As of Q2 2017, Rock Springs Capital Management held 159 positions worth $1.98B, up 14% from $1.73B the previous quarter. Its ten largest holdings account for 27% of the portfolio.

Rock Springs Capital Management deployed $143M of net new capital in Q2 2017, opening 18 new positions and adding to 48 existing holdings. Its largest new stake was Medtronic: 400,000 shares worth $35.5M.

By sector, the portfolio is most concentrated in Healthcare at 80% of assets, down from 82% a quarter earlier, followed by Financials and Consumer Discretionary.

On the sell side, the largest reduction was Bristol-Myers Squibb, an estimated $21.9M trimmed.

  • Rock Springs Capital Management's largest Q2 2017 buy was Medtronic: 400,000 shares worth $35.5M.
  • Rock Springs Capital Management added most to UnitedHealth in Q2 2017, an estimated $26.1M increase.
  • Rock Springs Capital Management's biggest Q2 2017 reduction was Bristol-Myers Squibb, cutting an estimated $21.9M.
  • Rock Springs Capital Management fully exited Eli Lilly in Q2 2017, selling an estimated $27.3M.
  • Rock Springs Capital Management's ten largest holdings make up 27% of its $1.98B portfolio in Q2 2017.
  • Rock Springs Capital Management opened 18 new positions and closed 10 in Q2 2017.
  • Rock Springs Capital Management's portfolio value rose 14% quarter-over-quarter to $1.98B.

Based on Rock Springs Capital Management's 13F filing for Q2 2017, filed 14 Aug 2017.