EC

EcoR1 Capital Portfolio holdings

AUM $2.06B Turnover 46.34%
1-Year Est. Return 215.32%
This Fund
S&P 500
This Quarter Est. Return
+13.6%
1 Year Est. Return
+215.32%
3 Year Est. Return
+310.3%
5 Year Est. Return
+497.45%
10 Year Est. Return
+14,692.23%
AUM
$300M
AUM Growth
-$135K
Cap. Flow
-$18M
Cap. Flow %
-6.01%
Top 10 Hldgs %
82.64%
Holding
32
New
9
Increased
4
Reduced
2
Closed
7
Avg Time Held Equity + Options
0.3 years
Top 10 Avg Time Held Equity + Options
0.2 years
Top 20 Avg Time Held Equity + Options
0.3 years
Avg Time Held Equity only
0.3 years
Top 10 Avg Time Held Equity only
0.3 years
Top 20 Avg Time Held Equity only
0.3 years

Sector Composition

Rank Sector Weight
1 Healthcare 85.8%
2 Miscellaneous 14.2%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow Held Since
IRWD icon
26
Ironwood Pharmaceuticals
IRWD
$592M
– –
-1,074,600
Closed -$14.4M –
SAGE icon
27
DELISTED
Sage Therapeutics
SAGE
– –
-112,455
Closed -$5.65M –
CLVS
28
DELISTED
Clovis Oncology, Inc.
CLVS
– –
-243,048
Closed -$18M –
CLVS
29
PUT
DELISTED
Clovis Oncology, Inc.
CLVS
– –
-2,500
Closed -$18.6M –
FLXN icon
30
DELISTED
Flexion Therapeutics, Inc.
FLXN
– –
-162,900
Closed -$3.67M –
RCPT
31
DELISTED
RECEPTOS INC COM STK (DE)
RCPT
– –
-151,301
Closed -$24.9M –

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EcoR1 Capital's Q2 2015 Portfolio in Review

As of Q2 2015, EcoR1 Capital held 32 positions worth $300M, down 0.04% from $300M the previous quarter. Its ten largest holdings account for 83% of the portfolio.

EcoR1 Capital withdrew a net $18M in Q2 2015, closing 7 positions and reducing 2 holdings. Its most notable exit was RECEPTOS INC COM STK (DE), an estimated $24.9M position sold in full.

By sector, the portfolio is most concentrated in Healthcare at 86% of assets, up from 74% a quarter earlier, followed by Miscellaneous.

Against the trend, EcoR1 Capital opened a new position in aTyr Pharma worth $15.5M.

  • EcoR1 Capital's largest Q2 2015 buy was aTyr Pharma: 59,776 shares worth $15.5M.
  • EcoR1 Capital added most to Kyntra Bio in Q2 2015, an estimated $18.7M increase.
  • EcoR1 Capital's biggest Q2 2015 reduction was Xenon Pharmaceuticals, cutting an estimated $2.04M.
  • EcoR1 Capital fully exited RECEPTOS INC COM STK (DE) in Q2 2015, selling an estimated $24.9M.
  • EcoR1 Capital's ten largest holdings make up 83% of its $300M portfolio in Q2 2015.
  • EcoR1 Capital opened 9 new positions and closed 7 in Q2 2015.
  • EcoR1 Capital's portfolio value fell 0.04% quarter-over-quarter to $300M.

Based on EcoR1 Capital's 13F filing for Q2 2015, filed 14 Aug 2015.