EC

EcoR1 Capital, LLC

13F
EcoR1 Capital, LLC
Last update 2025-05-20 46 Stocks (5 new)
Value $1.69 Bil Turnover 6 %
Countries:
Top Holdings: APLS(15.43%)JAZZ(12.57%)ZYME(12.19%)ANAB(8.69%)CRNX(8.53%)
Summary Stock Picks Current Portfolio
EcoR1 Capital, LLC Top Holdings of 2025-03-31 View Full List
Ticker
Company
Shares
Value ($1000)
Shares Change %
Weighting %
Trade Impact %
% of Shares outstanding
3M Change %
YTD Change %
Market Cap $Mil
Industry
APLS
Apellis Pharmaceuticals Inc
11,895,808
260,161.3
+0.04%
15.430
+0.01%
9.470
+0.10%
-39.08%
2,443.3
Biotechnology
JAZZ
Jazz Pharmaceuticals PLC
1,706,469
211,858.1
0%
12.570
0%
2.770
+9.72%
-10.46%
6,672.6
Biotechnology
ZYME
Zymeworks Inc
17,259,548
205,561.2
+14.85%
12.190
+1.58%
24.770
+25.49%
-8.88%
998.4
Biotechnology
ANAB
AnaptysBio Inc
7,880,094
146,491.0
+0.08%
8.690
+0.01%
26.820
+52.59%
+97.89%
769.8
Biotechnology
CRNX
Crinetics Pharmaceuticals Inc
4,288,120
143,823.5
0%
8.530
0%
4.580
+9.69%
-37.55%
2,991.2
Biotechnology
PRTA
Prothena Corp PLC
11,584,280
143,355.5
0%
8.500
0%
21.520
-37.38%
-53.79%
344.5
Biotechnology
SRPT
Sarepta Therapeutics Inc
1,292,386
82,480.1
+67.84%
4.890
+1.98%
1.320
-64.39%
-85.06%
1,785.7
Biotechnology
XNCR
Xencor Inc
6,144,767
65,380.3
0%
3.880
0%
8.630
+3.40%
-61.58%
628.4
Biotechnology
CRSP
CRISPR Therapeutics AG
1,389,276
47,277.1
0%
2.800
0%
1.610
+44.53%
+44.31%
4,905.5
Biotechnology
QURE
uniQure NV
3,988,971
42,283.1
+17.32%
2.510
+0.37%
7.290
+61.25%
-18.46%
788.4
Biotechnology

EcoR1 Capital, LLC's Historical Top Holdings Breakdowns

EcoR1 Capital, LLC's Top Stock Picks View Full List
Ticker
Company
Date
Action
Impact %
Price Range
Price
Price Change from Avrg%
Comment
Current Shares
Share Change
ARVN
Arvinas Inc
2025-03-31
Sold Out
Sold Out
-4.87%
●
7.02 ($15.67) 20.5
$7.79
-50.29%
Sold Out
0
-6,726,491
SWTX
SpringWorks Therapeutics Inc
2025-03-31
Sold Out
Sold Out
-2.13%
●
32.5 ($46.03) 59.93
$46.99
2.09%
Sold Out
0
-1,560,000
SRPT
Sarepta Therapeutics Inc
2025-03-31
Add
Add
+1.98%
●
63.82 ($105.27) 127.89
$18.17
-82.74%
Add 67.84%
1,292,386
522,386
ZYME
Zymeworks Inc
2025-03-31
Add
Add
+1.58%
●
11.1 ($13.64) 15.01
$13.34
-2.20%
Add 14.85%
17,259,548
2,231,469
THRD
Third Harmonic Bio Inc
2025-03-31
Sold Out
Sold Out
-1.24%
●
3.25 ($4.85) 11.17
$5.45
12.37%
Sold Out
0
-3,182,444
AKRO
Akero Therapeutics Inc
2025-03-31
New Buy
New Buy
+1.06%
●
21.87 ($42.39) 57.56
$51.57
21.66%
New holding
440,000
440,000
NMRA
Neumora Therapeutics Inc
2025-03-31
Sold Out
Sold Out
-0.83%
●
1 ($1.71) 2.58
$1.29
-24.56%
Sold Out
0
-2,071,450
CRGX
Cargo Therapeutics Inc
2025-03-31
Sold Out
Sold Out
-0.80%
●
3.39 ($6.7) 15.12
$4.59
-31.49%
Sold Out
0
-1,470,000
MLTX
MoonLake Immunotherapeutics
2025-03-31
Sold Out
Sold Out
-0.68%
●
36.75 ($43.09) 53.57
$49.00
13.72%
Sold Out
0
-332,522
BEAM
Beam Therapeutics Inc
2025-03-31
New Buy
New Buy
+0.61%
●
19.53 ($26.2) 34.09
$21.16
-19.24%
New holding
526,685
526,685

EcoR1 Capital, LLC Total Holding History ($B)

To

EcoR1 Capital, LLC's Asset Allocation

To

EcoR1 Capital, LLC Past Portfolios

Portfolio Date Number of Stocks New Stocks Total Value ($Mil) Q/Q Turnover

Top Ranked Articles

  • 1

EcoR1 Capital, LLC's Hypothetical Growth since 2025-03-31

EcoR1 Capital, LLC's Yearly Returns

Year Portfolio % % Excess Gain %

EcoR1 Capital, LLC's Holdings Heat Map

Size field:

EcoR1 Capital, LLC's Holdings Bubble Chart

EcoR1 Capital, LLC News

  • 1

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