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Latest EcoR1 Capital, LLC Stock Portfolio

EcoR1 Capital, LLC Performance:
2024 Q4: -10.33%YTD: -21.23%2023: -0.17%

Performance for 2024 Q4 is -10.33%, and YTD is -21.23%, and 2023 is -0.17%.

About EcoR1 Capital, LLC and 13F Hedge Fund Stock Holdings

EcoR1 Capital, LLC is a hedge fund based in SAN FRANCISCO, CA. On 29-Mar-2023, the fund reported that it had an AUM (Regulated Assets under Management) of $4.7 Billions. In it's latest 13F Holdings report, EcoR1 Capital, LLC reported an equity portfolio of $2.6 Billions as of 31 Dec, 2024.

The top stock holdings of EcoR1 Capital, LLC are APLS, ZYME, CRNX. The fund has invested 14.3% of it's portfolio in APELLIS PHARMACEUTICALS INC and 8.3% of portfolio in ZYMEWORKS INC.

The fund managers got completely rid off CENTESSA PHARMACEUTICALS PLC (CNTA), VIRIDIAN THERAPEUTICS INC (VRDN) and NUVATION BIO INC (NUVB) stocks. They significantly reduced their stock positions in ALLOVIR INC (ALVR), AADI BIOSCIENCE INC (AADI) and RELAY THERAPEUTICS INC (RLAY). EcoR1 Capital, LLC opened new stock positions in SAREPTA THERAPEUTICS INC (SRPT), UNIQURE NV (QURE) and SPRINGWORKS THERAPEUTICS INC (SWTX). The fund showed a lot of confidence in some stocks as they added substantially to DESIGN THERAPEUTICS INC (DSGN), ETON PHARMACEUTICALS INC (ETON) and XENCOR INC (XNCR).

EcoR1 Capital, LLC Annual Return Estimates Vs S&P 500

Our best estimate is that EcoR1 Capital, LLC made a return of -10.33% in the last quarter. In trailing 12 months, it's portfolio return was -21.23%.

New Buys

Ticker$ Bought
sarepta therapeutics inc93,624,300
uniqure nv60,044,000
springworks therapeutics inc56,362,800
moonlake immunotherapeutics18,006,100
ginkgo bioworks holdings inc17,119,600
kymera therapeutics inc14,080,500
fate therapeutics inc5,031,520
upstream bio inc986,400

New stocks bought by EcoR1 Capital, LLC

Additions

Ticker% Inc.
design therapeutics inc692
eton pharmaceuticals inc223
xencor inc15.28
atara biotherapeutics inc13.48
zymeworks inc11.84
mbx biosciences inc7.1
anaptysbio inc1.01

Additions to existing portfolio by EcoR1 Capital, LLC

Reductions

Ticker% Reduced
allovir inc-96.38
aadi bioscience inc-81.29
relay therapeutics inc-74.34
mersana therapeutics inc-41.5
kura oncology inc-38.74
atea pharmaceuticals inc-38.59
hookipa pharma inc-31.98
avidity biosciences inc-26.4

EcoR1 Capital, LLC reduced stake in above stock

Sold off

Ticker$ Sold
nuvation bio inc-43,990,100
centessa pharmaceuticals plc-51,549,400
viridian therapeutics inc-44,563,800
proqr thrapeutics n v-3,341,500
iteos therapeutics inc-16,424,000
edgewise therapeutics inc-33,372,800
pharvaris n v-16,668,000
celldex therapeutics inc new-22,093,500

EcoR1 Capital, LLC got rid off the above stocks

Sector Distribution

EcoR1 Capital, LLC has about 85.5% of it's holdings in Healthcare sector.

Sector%
Healthcare85.5
Others14.5

Market Cap. Distribution

EcoR1 Capital, LLC has about 3.7% of it's portfolio invested in the large-cap and mega-cap stocks.

Category%
MID-CAP43.3
SMALL-CAP35.3
UNALLOCATED14.5
LARGE-CAP3.7
MICRO-CAP2.4

Stocks belong to which Index?

About 56.2% of the stocks held by EcoR1 Capital, LLC either belong to S&P 500 or RUSSELL 2000 index.

Index%
RUSSELL 200056.2
Others43.8
Top 5 Winners (%)%
ALGS
aligos therapeutics inc
360.1 %
QURE
uniqure nv
174.2 %
ATRA
atara biotherapeutics inc
56.5 %
ETON
eton pharmaceuticals inc
51.6 %
MDGL
madrigal pharmaceuticals inc
45.4 %
Top 5 Winners ($)$
QURE
uniqure nv
38.1 M
APLS
apellis pharmaceuticals inc
36.5 M
JAZZ
jazz pharmaceuticals plc
20.0 M
XNCR
xencor inc
15.2 M
JANX
janux therapeutics inc
11.9 M
Top 5 Losers (%)%
KROS
keros therapeutics inc
-72.7 %
ANAB
anaptysbio inc
-60.3 %
TNGX
tango therapeutics inc
-57.7 %
GBIO
generation bio co
-57.1 %
HOOK
hookipa pharma inc
-45.9 %
Top 5 Losers ($)$
ANAB
anaptysbio inc
-158.6 M
TNGX
tango therapeutics inc
-59.2 M
KURA
kura oncology inc
-46.7 M
ARVN
arvinas inc
-36.7 M
PRTA
prothena corp plc
-33.4 M

EcoR1 Capital, LLC Holdings Map

This heatmap illustrates the top 50 positions within the fund's portfolio.

Current Stock Holdings of EcoR1 Capital, LLC

EcoR1 Capital, LLC has 55 stocks in it's portfolio. About 65.6% of the portfolio is in top 10 stocks. ANAB proved to be the most loss making stock for the portfolio. QURE was the most profitable stock for EcoR1 Capital, LLC last quarter.

Last Reported on: 14 Feb, 2025
TickerNamesorted ascending% PortfolioShares Held$ ValueType% ChangeOptions