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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
+5.62%
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
$2.2B
AUM Growth
+$36.4M
Cap. Flow
+$49.6M
Cap. Flow %
2.25%
Top 10 Hldgs %
26.49%
Holding
159
New
12
Increased
46
Reduced
21
Closed
14

Top Buys

Rank Stock Value
1
TFX icon
Teleflex
TFX
+$23.1M
2
SYK icon
Stryker
SYK
+$19.3M
3
HOLX
Hologic
HOLX
+$13.4M
4
ZBH icon
Zimmer Biomet
ZBH
+$11.4M
5
MOH icon
Molina Healthcare
MOH
+$10.4M

Top Sells

Rank Stock Value
1
AET
Aetna Inc
AET
+$27.5M
2
DHR icon
Danaher
DHR
+$19.3M
3
MDT icon
Medtronic
MDT
+$19.2M
4
BCR
CR Bard Inc.
BCR
+$18.4M
5
WCG
Wellcare Health Plans, Inc.
WCG
+$12.3M

Sector Composition

Rank Sector Weight
1 Healthcare 85.16%
2 Financials 2.8%
3 Consumer Discretionary 0.37%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
BCR
151
DELISTED
CR Bard Inc.
BCR
– –
-57,500
Closed -$18.4M
DMTX
152
DELISTED
Dimension Therapeutics, Inc
DMTX
– –
-225,000
Closed -$1.35M
NDRM
153
DELISTED
NeuroDerm Ltd. Ordinary Shares
NDRM
– –
-237,700
Closed -$9.25M
3 4 5 6
7

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Rock Springs Capital Management's Q4 2017 Portfolio in Review

As of Q4 2017, Rock Springs Capital Management held 159 positions worth $2.2B, up 1.7% from $2.17B the previous quarter. Its ten largest holdings account for 26% of the portfolio.

Rock Springs Capital Management's Q4 2017 filing shows 12 new, 46 increased, 21 reduced and 14 closed positions. Its largest new stake was Teleflex: 91,750 shares worth $22.8M. The largest sale was Aetna Inc, an estimated $27.5M.

By sector, the portfolio is most concentrated in Healthcare at 85% of assets, up from 80% a quarter earlier, followed by Financials and Consumer Discretionary.

  • Rock Springs Capital Management's largest Q4 2017 buy was Teleflex: 91,750 shares worth $22.8M.
  • Rock Springs Capital Management added most to Zimmer Biomet in Q4 2017, an estimated $11.4M increase.
  • Rock Springs Capital Management's biggest Q4 2017 reduction was Aetna Inc, cutting an estimated $27.5M.
  • Rock Springs Capital Management fully exited Danaher in Q4 2017, selling an estimated $19.3M.
  • Rock Springs Capital Management's ten largest holdings make up 26% of its $2.2B portfolio in Q4 2017.
  • Rock Springs Capital Management opened 12 new positions and closed 14 in Q4 2017.
  • Rock Springs Capital Management's portfolio value rose 1.7% quarter-over-quarter to $2.2B.

Based on Rock Springs Capital Management's 13F filing for Q4 2017, filed 14 Feb 2018.