Fund HoldingsEcoR1 Capital, LLC

Total Portfolio Value
$2.96B
Total Bought
$575.66M
Total Sold
$1.07B
Net Transaction
-$497.88M
Filing Period:
Securities
SharesValue ($K)
Q2 2023
Q3 2023
Change
Q2 2023
Q3 2023
Weight (%)
Change
MIRATI THERAPEUTICS INC05,748,399+5,748,3990250,4008.45%+250,400
TANGO THERAPEUTICS INC(TNGX)4,047,1148,721,636+4,674,52213,43698,2063.31%+84,769
NEUMORA THERAPEUTICS INC.02,071,450+2,071,450029,2280.99%+29,228
APELLIS PHARMACEUTICALS INC(Call)
COM
0732,500+732,500027,864+27,864
MERSANA THERAPEUTICS INC019,364,688+19,364,688024,5930.83%+24,593
CRINETICS PHARMACEUTICALS IN(CRNX)1,330,2631,530,263+200,00023,97145,5101.54%+21,539
ACELYRIN INC01,402,201+1,402,201014,2600.48%+14,260
DECIPHERA PHARMACEUTICALS IN0993,000+993,000012,6310.43%+12,631
THIRD HARMONIC BIO INC2,088,7802,982,444+893,66410,04719,0580.64%+9,011
GOSSAMER BIO INC09,195,404+9,195,40407,6580.26%+7,658
ARVINAS INC4,017,7885,467,063+1,449,27599,721107,3733.62%+7,652
OVID THERAPEUTICS INC6,117,4006,117,400020,06523,4910.79%+3,426
AEGLEA BIOTHERAPEUTICS INC(SYRE)0199,996+199,99602,4500.08%+2,450
JAZZ PHARMACEUTICALS PLC(JAZZ)368,411368,411045,67247,6871.61%+2,015
ALECTOR INC4,056,5484,056,548024,38026,2860.89%+1,907
CENTESSA PHARMACEUTICALS PLC5,618,7795,618,779034,78036,3541.23%+1,573
REVOLUTION MEDICINES INC(RVMD)(Call)031,300+31,3000866+866
NUVATION BIO INC(NUVB)13,896,54319,209,643+5,313,10025,01425,7410.87%+727
TSCAN THERAPEUTICS INC5,000,0005,000,000012,50012,8000.43%+300
SURROZEN INC66,66566,665037330.00%-4
CAREMAX INC100,000100,00003112120.01%-99
NEWAMSTERDAM PHARMA COMPANY
*W EXP 99/99/999
66,66566,66507936170.02%-176
NUVATION BIO INC(NUVB)963,333963,33301,7341,2910.04%-443
KRONOS BIO INC326,7800-326,7805620-562
ALIGOS THERAPEUTICS INC3,948,3603,948,36003,8342,9490.10%-884
PROQR THRAPEUTICS N V
SHS EURO
2,980,0162,980,01604,8283,8740.13%-954
GRAPHITE BIO INC8,538,4468,538,446022,20021,1750.71%-1,025
TEMPEST THERAPEUTICS INC1,123,434931,000-192,4341,4272840.01%-1,143
POSEIDA THERAPEUTICS INC676,2960-676,2961,1900-1,190
4D MOLECULAR THERAPEUTICS IN66,9780-66,9781,2100-1,210
HOOKIPA PHARMA INC4,595,0244,595,02404,0442,8310.10%-1,213
ALLAKOS INC748,900748,90003,2651,7000.06%-1,565
PRELUDE THERAPEUTICS INC1,157,4521,157,45205,2093,5770.12%-1,632
AEGLEA BIOTHERAPEUTICS INC5,000,0000-5,000,0002,2530-2,252
PHATHOM PHARMACEUTICALS INC700,000700,000010,0247,2590.24%-2,765
PRIME MEDICINE INC600,000600,00008,7905,7240.19%-3,066
GENERATION BIO CO2,046,8672,046,867011,2587,7580.26%-3,500
ATEA PHARMACEUTICALS INC6,995,8616,995,861026,16520,9880.71%-5,177
KURA ONCOLOGY INC(Call)500,0000-500,0005,2900-5,290
JANUX THERAPEUTICS INC(JANX)452,5900-452,5905,3720-5,372
ORIC PHARMACEUTICALS INC(ORIC)3,418,0683,418,068026,52420,6790.70%-5,845
EDGEWISE THERAPEUTICS INC(EWTX)3,493,1943,493,194027,07220,0160.68%-7,056
ALLOGENE THERAPEUTICS INC4,488,2004,488,200022,30614,2280.48%-8,079
ZENTALIS PHARMACEUTICALS INC300,0000-300,0008,4630-8,463
KURA ONCOLOGY INC(KURA)5,806,8715,806,871061,43752,9591.79%-8,478
DYNE THERAPEUTICS INC(DYN)798,7010-798,7018,9850-8,985
NGM BIOPHARMACEUTICALS INC6,435,5186,435,518016,6686,8860.23%-9,782
SPRINGWORKS THERAPEUTICS INC3,460,2083,460,208090,72780,0002.70%-10,727
VOYAGER THERAPEUTICS INC3,851,5073,851,507044,10029,8491.01%-14,251
RELAY THERAPEUTICS INC(RLAY)4,163,8244,163,824052,29835,0181.18%-17,280
ANAPTYSBIO INC7,521,0247,521,0240152,978135,0784.56%-17,900
ACADIA PHARMACEUTICALS INC5,991,4795,991,4790143,496124,8624.21%-18,633
XENCOR INC(XNCR)5,282,5165,282,5160131,904106,4433.59%-25,462
ZYMEWORKS INC(ZYME)13,437,47313,437,4730116,10085,1942.87%-30,906
GALAPAGOS NV(LKFT)5,756,2685,756,2680234,050198,8796.71%-35,171
REVOLUTION MEDICINES INC(RVMD)7,198,7005,577,863-1,620,837192,565154,3955.21%-38,170
APELLIS PHARMACEUTICALS INC
COM
5,451,64710,899,859+5,448,212496,645414,63113.99%-82,014
BLUEPRINT MEDICINES CORP1,798,3000-1,798,300113,6530-113,653
MORPHIC HLDG INC3,846,9641,480,190-2,366,774220,54633,9111.14%-186,635
PROTHENA CORP PLC
SHS
11,584,28011,584,2800790,975558,94218.85%-232,033
JOHNSON & JOHNSON(JNJ)(Call)1,700,0000-1,700,000281,3840-281,384
SAREPTA THERAPEUTICS INC(SRPT)3,660,7980-3,660,798419,2350-419,235
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