Fund HoldingsEcoR1 Capital, LLC

Total Portfolio Value
$2.65B
Total Bought
$710.87M
Total Sold
$567.52M
Net Transaction
+$143.35M
Filing Period:
Securities
SharesValue ($K)
Q3 2024
Q4 2024
Change
Q3 2024
Q4 2024
Weight (%)
Change
PFIZER INC(PFE)(Call)05,000,000+5,000,0000132,650+132,650
SAREPTA THERAPEUTICS INC(SRPT)0770,000+770,000093,6243.54%+93,624
UNIQURE NV(QURE)03,400,000+3,400,000060,0442.27%+60,044
SPRINGWORKS THERAPEUTICS INC01,560,000+1,560,000056,3632.13%+56,363
ZYMEWORKS INC(ZYME)13,437,47315,028,079+1,590,606168,640220,0118.32%+51,371
APELLIS PHARMACEUTICALS INC
COM
11,890,84311,890,8430342,932379,43714.35%+36,505
XENCOR INC(XNCR)5,330,4166,144,767+814,351107,195141,2075.34%+34,012
MBX BIOSCIENCES INC(MBX)01,259,273+1,259,273023,2080.88%+23,208
ETON PHARMACEUTICALS INC(ETON)566,0751,829,603+1,263,5283,39624,3700.92%+20,974
JAZZ PHARMACEUTICALS PLC(JAZZ)1,706,4691,706,4690190,118210,1527.95%+20,034
MOONLAKE IMMUNOTHERAPEUTICS(MLTX)0332,522+332,522018,0060.68%+18,006
GINKGO BIOWORKS HOLDINGS INC01,743,344+1,743,344017,1200.65%+17,120
KYMERA THERAPEUTICS INC(KYMR)0350,000+350,000014,0810.53%+14,081
TECTONIC THERAPEUTIC INC849,143849,143025,72939,2051.48%+13,476
JANUX THERAPEUTICS INC(JANX)1,469,8181,469,818066,77478,6942.98%+11,920
ALIGOS THERAPEUTICS INC0255,573+255,573010,1820.38%+10,182
MADRIGAL PHARMACEUTICALS INC(MDGL)75,00075,000015,91723,1430.87%+7,226
UNIQURE NV(QURE)(Call)0385,000+385,00006,799+6,799
FATE THERAPEUTICS INC03,049,405+3,049,40505,0320.19%+5,032
ATARA BIOTHERAPEUTICS INC468,938532,134+63,1963,8127,0830.27%+3,270
NUVATION BIO INC(NUVB)0963,333+963,33302,5620.10%+2,562
DESIGN THERAPEUTICS INC(DSGN)53,834426,683+372,8492902,6330.10%+2,343
VERVE THERAPEUTICS INC1,250,0001,250,00006,0507,0500.27%+1,000
UPSTREAM BIO INC060,000+60,00009860.04%+986
REPLIMUNE GROUP INC(REPL)850,341850,34109,32010,2980.39%+978
HOOKIPA PHARMA INC0388,861+388,86107820.03%+782
ETON PHARMACEUTICALS INC(ETON)(Call)228,000151,400-76,6001,3682,017+649
ARTIVA BIOTHERAPEUTICS INC041,453+41,45304180.02%+418
SURROZEN INC66,66566,66507999570.04%+158
MONTE ROSA THERAPEUTICS INC(GLUE)(Call)021,700+21,7000151+151
CRINETICS PHARMACEUTICALS IN(CRNX)4,288,1204,288,1200219,123219,2528.29%+129
ALLAKOS INC192,3460-192,3461260-126
CAREMAX INC100,0000-100,0001700-170
MACROGENICS INC56,0180-56,0181840-184
GALAPAGOS NV(LKFT)155,006155,00604,4634,2630.16%-200
ARTIVA BIOTHERAPEUTICS INC41,4530-41,4536400-640
PRIME MEDICINE INC700,000700,00002,7092,0440.08%-665
VOYAGER THERAPEUTICS INC3,917,5463,917,546022,91822,2120.84%-705
DAY ONE BIOPHARMACEUTICALS I
COM
862,068862,068012,00910,9220.41%-1,086
KYVERNA THERAPEUTICS INC450,0000-450,0002,2010-2,200
NUVATION BIO INC(NUVB)963,3330-963,3332,2060-2,206
ALIGOS THERAPEUTICS INC255,5730-255,5732,2130-2,213
HOOKIPA PHARMA INC571,7270-571,7272,4580-2,458
AADI BIOSCIENCE INC1,845,253345,253-1,500,0003,8011,0890.04%-2,712
GENERATION BIO CO2,046,8672,046,86705,0562,1700.08%-2,886
PROQR THRAPEUTICS N V
SHS EURO
1,835,9910-1,835,9913,3420-3,342
BRIDGEBIO PHARMA INC(BBIO)170,1720-170,1724,3330-4,333
ALLOVIR INC11,294,585408,688-10,885,8979,1323,9480.15%-5,184
NEUMORA THERAPEUTICS INC.2,071,4502,071,450027,36421,9570.83%-5,406
CARGO THERAPEUTICS INC1,470,0001,470,000027,12221,1970.80%-5,924
DYNE THERAPEUTICS INC(DYN)555,644555,644019,95913,0910.49%-6,868
ATEA PHARMACEUTICALS INC5,441,8963,341,653-2,100,24318,23011,1950.42%-7,036
ORIC PHARMACEUTICALS INC(ORIC)3,418,0683,418,068035,03527,5841.04%-7,451
BICYCLE THERAPEUTICS PLC910,000910,000020,59312,7400.48%-7,853
KEROS THERAPEUTICS INC187,500187,500010,8882,9680.11%-7,920
LENZ THERAPEUTICS INC346,7720-346,7728,2320-8,232
TSCAN THERAPEUTICS INC5,000,0005,000,000024,90015,2000.57%-9,700
THIRD HARMONIC BIO INC3,182,4443,182,444043,12232,7471.24%-10,375
CRISPR THERAPEUTICS AG(CRSP)1,389,2761,389,276065,26854,6822.07%-10,586
ADAPTIMMUNE THERAPEUTICS PLC27,404,07027,404,070026,04514,7630.56%-11,282
RELAY THERAPEUTICS INC(RLAY)2,500,000641,426-1,858,57417,7002,6430.10%-15,057
IMMUNOME INC(IMNM)3,879,4153,879,415056,71741,1991.56%-15,518
ITEOS THERAPEUTICS INC1,608,6160-1,608,61616,4240-16,424
PHARVARIS N V
COM
900,0000-900,00016,6680-16,668
AVIDITY BIOSCIENCES INC757,576557,576-200,00034,79516,2140.61%-18,581
IONIS PHARMACEUTICALS INC(IONS)500,0000-500,00020,0300-20,030
MERSANA THERAPEUTICS INC19,364,68811,328,000-8,036,68836,59916,1990.61%-20,400
CELLDEX THERAPEUTICS INC NEW(CLDX)650,0000-650,00022,0940-22,093
NEUROGENE INC1,271,3421,271,342053,34629,0631.10%-24,283
MBX BIOSCIENCES INC(MBX)1,175,8090-1,175,80930,5480-30,548
PROTHENA CORP PLC
SHS
11,584,28011,584,2800193,805160,4426.07%-33,363
EDGEWISE THERAPEUTICS INC(EWTX)1,250,3850-1,250,38533,3730-33,373
ARVINAS INC6,726,4916,726,4910165,673128,9474.87%-36,727
VAXCYTE INC(PCVX)352,4640-352,46440,2760-40,276
NUVATION BIO INC(NUVB)19,209,6430-19,209,64343,9900-43,990
VIRIDIAN THERAPEUTICS INC(VRDN)1,958,8470-1,958,84744,5640-44,564
CENTESSA PHARMACEUTICALS PLC3,223,8510-3,223,85151,5490-51,549
TANGO THERAPEUTICS INC(TNGX)13,330,73610,630,736-2,700,000102,64732,8491.24%-69,798
KURA ONCOLOGY INC(KURA)5,806,8713,557,269-2,249,602113,46630,9841.17%-82,482
ANAPTYSBIO INC7,794,9967,873,448+78,452261,132104,2443.94%-156,888
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