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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
+8.8%
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
$5.06B
AUM Growth
+$476M
Cap. Flow
+$367M
Cap. Flow %
7.25%
Top 10 Hldgs %
27.38%
Holding
165
New
14
Increased
67
Reduced
10
Closed
9

Top Buys

Rank Stock Value
1
AGL icon
Agilon Health
AGL
+$245M
2
LENZ
LENZ Therapeutics
LENZ
+$53.5M
3
NEUE
NeueHealth
NEUE
+$40.7M
4
VERV
Verve Therapeutics
VERV
+$40M
5
LFST icon
Lifestance Health
LFST
+$39.6M

Top Sells

Rank Stock Value
1
FPRX
Five Prime Therapeutics, Inc.
FPRX
+$100M
2
AZN icon
AstraZeneca
AZN
+$32.3M
3
AVIR icon
Atea Pharmaceuticals
AVIR
+$27.2M
4
INSP icon
Inspire Medical Systems
INSP
+$20.7M
5
UNH icon
UnitedHealth
UNH
+$14M

Sector Composition

Rank Sector Weight
1 Healthcare 94.21%
2 Consumer Staples 1.63%
3 Industrials 0.71%
4 Financials 0.1%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
CNTB
151
Connect Biopharma Holdings
CNTB
$140M
– –
-119,114
Closed -$2.2M
INSP icon
152
Inspire Medical Systems
INSP
$1.76B
– –
-100,000
Closed -$20.7M
RPRX icon
153
Royalty Pharma
RPRX
$25.6B
– –
-80,000
Closed -$3.49M
TGTX icon
154
TG Therapeutics
TGTX
$7.57B
– –
-266,520
Closed -$12.8M
NGM
155
DELISTED
NGM Biopharmaceuticals, Inc. Common Stock
NGM
– –
-364,800
Closed -$10.6M
SNCE
156
DELISTED
Science 37 Holdings, Inc. Common Stock
SNCE
– –
-10,310
Closed -$2.09M
FPRX
157
DELISTED
Five Prime Therapeutics, Inc.
FPRX
– –
-2,660,822
Closed -$100M
3 4 5 6
7

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Rock Springs Capital Management's Q2 2021 Portfolio in Review

As of Q2 2021, Rock Springs Capital Management held 165 positions worth $5.06B, up 10% from $4.58B the previous quarter. Its ten largest holdings account for 27% of the portfolio.

Rock Springs Capital Management deployed $367M of net new capital in Q2 2021, opening 14 new positions and adding to 67 existing holdings. Its largest new stake was Agilon Health: 279,961 shares worth $284M.

By sector, the portfolio is most concentrated in Healthcare at 94% of assets, up from 94% a quarter earlier, followed by Consumer Staples and Industrials.

On the sell side, the largest reduction was Atea Pharmaceuticals, an estimated $27.2M trimmed.

  • Rock Springs Capital Management's largest Q2 2021 buy was Agilon Health: 279,961 shares worth $284M.
  • Rock Springs Capital Management added most to Eargo, Inc. Common Stock in Q2 2021, an estimated $25.1M increase.
  • Rock Springs Capital Management's biggest Q2 2021 reduction was Atea Pharmaceuticals, cutting an estimated $27.2M.
  • Rock Springs Capital Management fully exited Five Prime Therapeutics, Inc. in Q2 2021, selling an estimated $100M.
  • Rock Springs Capital Management's ten largest holdings make up 27% of its $5.06B portfolio in Q2 2021.
  • Rock Springs Capital Management opened 14 new positions and closed 9 in Q2 2021.
  • Rock Springs Capital Management's portfolio value rose 10% quarter-over-quarter to $5.06B.

Based on Rock Springs Capital Management's 13F filing for Q2 2021, filed 16 Aug 2021.