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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
+9.4%
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
$1.37B
AUM Growth
+$301M
Cap. Flow
+$225M
Cap. Flow %
16.4%
Top 10 Hldgs %
27.24%
Holding
130
New
25
Increased
53
Reduced
12
Closed
13

Top Buys

Rank Stock Value
1
ONCE
Spark Therapeutics, Inc. Common Stock
ONCE
+$31.4M
2
ADAP
Adaptimmune Therapeutics
ADAP
+$15.5M
3
COLL icon
Collegium Pharmaceutical
COLL
+$13M
4
KDNY
Chinook Therapeutics, Inc. Common Stock
KDNY
+$11.6M
5
ACHC icon
Acadia Healthcare
ACHC
+$10.7M

Top Sells

Rank Stock Value
1
PCYC
PHARMACYCLICS INC
PCYC
+$22.5M
2
SRCL
Stericycle Inc
SRCL
+$10.3M
3
LH icon
Labcorp
LH
+$9.46M
4
XLV icon
State Street Health Care Select Sector SPDR ETF
XLV
+$7.97M
5
AVDL
Avadel Pharmaceuticals
AVDL
+$6.9M

Sector Composition

Rank Sector Weight
1 Healthcare 89.45%
2 Miscellaneous 7.77%
3 Financials 1.46%
4 Technology 1%
5 Industrials 0.32%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
ABBV icon
1
AbbVie
ABBV
$465B
$50.2M 3.66%
746,423
+146,423
+24% +$9.56M
MDT icon
2
Medtronic
MDT
$120B
$42.2M 3.08%
570,000
-2,300
-0.4% -$176K
BHC icon
3
Bausch Health
BHC
$2.12B
$42M 3.07%
189,250
+34,250
+22% +$7.59M
ACHC icon
4
Acadia Healthcare
ACHC
$2.55B
$40.1M 2.93%
511,750
+149,250
+41% +$10.7M
HCA icon
5
HCA Healthcare
HCA
$91.8B
$38.3M 2.8%
422,500
– –
AGN
6
DELISTED
Allergan plc
AGN
$36.9M 2.69%
121,500
+9,000
+8% +$2.68M
MCK icon
7
McKesson
MCK
$105B
$33.6M 2.45%
149,500
+500
+0.3% +$116K
ONCE
8
DELISTED
Spark Therapeutics, Inc. Common Stock
ONCE
$30.6M 2.24%
508,059
+474,953
+1,435% +$31.4M
GILD icon
9
Gilead Sciences
GILD
$181B
$30.1M 2.2%
257,500
+2,500
+1% +$273K
RDUS
10
DELISTED
Radius Health, Inc.
RDUS
$29M 2.12%
429,000
+29,000
+7% +$1.35M
ALXN
11
DELISTED
Alexion Pharmaceuticals
ALXN
$27.9M 2.04%
154,500
+46,250
+43% +$7.98M
PFE icon
12
Pfizer
PFE
$157B
$25.5M 1.86%
801,040
– –
HUM icon
13
Humana
HUM
$47.6B
$25.2M 1.84%
131,500
+24,000
+22% +$4.45M
AMGN icon
14
Amgen
AMGN
$203B
$23.9M 1.75%
156,000
-8,000
-5% -$1.28M
THOR
15
DELISTED
THORATEC CORPORATION
THOR
$23.7M 1.73%
532,500
+17,500
+3% +$766K
CELG
16
DELISTED
Celgene Corp
CELG
$22.9M 1.67%
198,000
+3,500
+2% +$400K
EVHC
17
DELISTED
Envision Healthcare Holdings Inc
EVHC
$22.5M 1.64%
190,380
– –
TVTX icon
18
Travere Therapeutics
TVTX
$5.89B
$22.4M 1.63%
675,000
-25,000
-4% -$685K
TMH
19
DELISTED
Team Health Holdings Inc
TMH
$20.4M 1.49%
312,500
+1,500
+0.5% +$90.6K
AET
20
DELISTED
Aetna Inc
AET
$19.9M 1.46%
156,500
– –
CI icon
21
Cigna
CI
$76.3B
$19.8M 1.44%
122,000
– –
LLY icon
22
Eli Lilly
LLY
$1.01T
$19.4M 1.42%
232,500
+2,500
+1% +$190K
NBIX icon
23
Neurocrine Biosciences
NBIX
$15.2B
$18M 1.31%
376,000
+1,000
+0.3% +$42.4K
CVS icon
24
CVS Health
CVS
$121B
$17.2M 1.26%
164,000
– –
ADAP
25
DELISTED
Adaptimmune Therapeutics
ADAP
$16.6M 1.21%
+905,000
New +$15.5M
1
2 3 4 5

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FWTB
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SIC
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RMC
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DWT
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CFA
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ABTD
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JCM
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Rock Springs Capital Management's Q2 2015 Portfolio in Review

As of Q2 2015, Rock Springs Capital Management held 130 positions worth $1.37B, up 28% from $1.07B the previous quarter. Its ten largest holdings account for 27% of the portfolio.

Rock Springs Capital Management deployed $225M of net new capital in Q2 2015, opening 25 new positions and adding to 53 existing holdings. Its largest new stake was Adaptimmune Therapeutics: 905,000 shares worth $16.6M.

By sector, the portfolio is most concentrated in Healthcare at 89% of assets, up from 85% a quarter earlier, followed by Miscellaneous and Financials.

On the sell side, the largest reduction was Avadel Pharmaceuticals, an estimated $6.9M trimmed.

  • Rock Springs Capital Management's largest Q2 2015 buy was Adaptimmune Therapeutics: 905,000 shares worth $16.6M.
  • Rock Springs Capital Management added most to Spark Therapeutics, Inc. Common Stock in Q2 2015, an estimated $31.4M increase.
  • Rock Springs Capital Management's biggest Q2 2015 reduction was Avadel Pharmaceuticals, cutting an estimated $6.9M.
  • Rock Springs Capital Management fully exited PHARMACYCLICS INC in Q2 2015, selling an estimated $22.5M.
  • Rock Springs Capital Management's ten largest holdings make up 27% of its $1.37B portfolio in Q2 2015.
  • Rock Springs Capital Management opened 25 new positions and closed 13 in Q2 2015.
  • Rock Springs Capital Management's portfolio value rose 28% quarter-over-quarter to $1.37B.

Based on Rock Springs Capital Management's 13F filing for Q2 2015, filed 14 Aug 2015.