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RA CAPITAL MANAGEMENT, L.P.

AUM: $9.65 B
13-F Portfolio Value: $6.40 B
Last 13-F Filed: Q4 2023
Concentration in top 10: 60.91%
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Stock Company % Portfolio Shares Held Market Value Change in Shares % Change Quarter End Price Source
ASNDASCENDIS PHARMA A/S - ADR15.33%10,107,400$1,273,027,030-612,155-5.71%$125.9513F
IMGNIMMUNOGEN INC8.48%23,750,601$704,205,32010,428,31378.28%$29.6513F
JANXJanux Therapeutics, Inc.6.08%10,593,395$451,384,5611,427,74315.58%13D
PCVXVAXCYTE INC5.97%7,891,254$495,570,751No Change$62.813F
LEGNLEGEND BIOTECH CORP-ADR4.54%6,264,707$376,947,420No Change$60.1713F
RYTMRHYTHM PHARMACEUTICALS INC2.95%5,330,412$245,039,040-345,655-6.09%$45.9713F
TYRATyra Biosciences, Inc.2.48%10,475,489$188,558,8023,239,03544.76%13D
ETNB89bio, Inc.2.36%12,766,948$195,972,6521,350,00011.82%Form 4
AVTEAEROVATE THERAPEUTICS INC2.25%8,263,982$187,013,913No Change$22.6313F
INBXINHIBRX INC2.16%4,724,207$179,519,866No Change$3813F
PEPGPepGen Inc.2.15%10,695,135$151,657,0142,563,18331.52%13D
DYNDyne Therapeutics, Inc.2.00%5,213,661$135,868,0065,213,661New13G
CBAYCYMABAY THERAPEUTICS INC1.97%6,940,000$163,922,800No Change$23.6213F
BIIBBIOGEN INC1.66%532,892$137,896,463No Change$258.7713F
RXSTRXSIGHT INC1.65%3,404,285$137,260,771351,48911.51%$40.3213F
VRNAVERONA PHARMA PLC - ADR1.51%6,317,990$125,601,641No Change$19.8813F
EWTXEdgewise Therapeutics, Inc.1.48%8,909,091$116,174,5478,909,091New13G
ANTXAN2 THERAPEUTICS INC1.37%5,551,295$113,746,035No Change$20.4913F
DAWNDAY ONE BIOPHARMACEUTICALS I1.37%7,809,852$114,023,839No Change$14.613F
NKTXNkarta, Inc.1.33%10,805,129$108,051,2903,000,00038.44%Form 4
SPRYARS Pharmaceuticals, Inc.1.32%10,860,977$106,328,9651,401,29914.81%Form 4
ACRVAcrivon Therapeutics, Inc.1.20%8,359,102$77,656,0583,548,59473.77%13D
LENZLENZ Therapeutics, Inc.1.20%6,564,674$98,667,0506,564,674NewForm 4
GERNGERON CORP1.17%46,202,425$97,487,117No Change$2.1113F
ALPNALPINE IMMUNE SCIENCES INC1.13%4,909,763$93,580,083218,5854.66%$19.0613F
WVEWAVE LIFE SCIENCES LTD1.11%18,202,009$91,920,1451,000,0005.81%$5.0513F
NAMSNEWAMSTERDAM PHARMA CO NV1.06%7,864,000$87,840,880-1,136,000-12.62%$11.1713F
LRMRLarimar Therapeutics, Inc.1.03%6,045,351$77,259,5866,045,351New13G
FDMT4D MOLECULAR THERAPEUTICS IN1.02%4,163,211$84,346,655No Change$20.2613F
EVHEVOLENT HEALTH INC - A1.01%2,549,132$84,197,830-187,548-6.85%$33.0313F
MLYSMineralys Therapeutics, Inc.0.97%4,949,307$72,853,7991,770,83155.71%13D
AXSMAXSOME THERAPEUTICS INC0.96%1,000,000$79,590,000No Change$79.5913F
LBPHLongboard Pharmaceuticals, Inc.0.96%3,073,119$77,135,2873,073,119New13G
FULCFULCRUM THERAPEUTICS INC0.94%11,609,704$78,365,502No Change$6.7513F
ATXSAstria Therapeutics, Inc.0.78%4,413,150$59,842,3144,413,150New13G
CTKBCYTEK BIOSCIENCES INC0.75%6,809,404$62,101,764No Change$9.1213F
ABOSACUMEN PHARMACEUTICALS INC0.69%14,932,063$57,339,122No Change$3.8413F
APGEAPOGEE THERAPEUTICS INC0.67%1,977,901$55,262,554No Change$27.9413F
DNTHDianthus Therapeutics, Inc. /DE/0.63%2,995,023$49,118,3772,995,023New13G
VORVOR BIOPHARMA INC0.62%22,748,880$51,184,980No Change$2.2513F
ITOSITEOS THERAPEUTICS INC0.58%4,417,259$48,368,986No Change$10.9513F
MDGLMADRIGAL PHARMACEUTICALS INC0.57%204,500$47,317,210No Change$231.3813F
URGNUROGEN PHARMA LTD0.56%3,083,430$46,251,4501,599,733107.82%$1513F
ELYMEliem Therapeutics, Inc.0.55%13,189,736$35,216,59538,8870.30%13D
HOWLWerewolf Therapeutics, Inc.0.51%6,179,035$37,815,69434,1540.56%13D
MGNXMACROGENICS INC0.47%4,053,077$38,990,6013,711,0771085.11%$9.6213F
SLDBSolid Biosciences Inc.0.42%4,348,828$33,485,9764,348,828New13D
TSHATAYSHA GENE THERAPIES INC0.39%18,472,503$32,696,330No Change$1.7713F
GHRSGH RESEARCH PLC0.39%5,587,333$32,406,531No Change$5.813F
BOLDBoundless Bio, Inc.0.38%1,884,787$30,156,5921,884,787NewForm 4
CYBNCYBIN INC.0.36%58,139,535$25,000,00058,139,535New13G
ELVNENLIVEN THERAPEUTICS INC0.35%2,122,465$29,374,916No Change$13.8413F
CCCCC4 THERAPEUTICS INC0.33%4,878,000$27,560,7004,878,000New$5.6513F
ANROAlto Neuroscience, Inc.0.29%1,385,491$19,992,6351,385,491New13G
CRVOCervoMed Inc.0.29%825,373$18,735,967825,373New13G
SLDBSolid Biosciences Inc.0.29%4,301,877$23,789,380875,59125.56%Form 4
PLRXPLIANT THERAPEUTICS INC0.28%1,281,000$23,198,910-481,000-27.3%$18.1113F
RNAAVIDITY BIOSCIENCES INC0.27%2,454,533$22,213,524-3,962,465-61.75%$9.0513F
SERASERA PROGNOSTICS, INC.0.27%2,047,221$18,465,9332,047,221New13G
THRDTHIRD HARMONIC BIO INC0.27%2,033,056$22,302,6241,071,193111.37%$10.9713F
ACETAdicet Bio, Inc.0.25%7,696,949$19,011,4647,696,949New13G
GPCRSTRUCTURE THERAPEUTICS INC0.24%486,832$19,843,272486,832New$40.7613F
RGLSRegulus Therapeutics Inc.0.22%6,250,000$15,312,5006,250,000New13G
ARVNARVINAS INC0.21%421,348$17,342,684421,348New$41.1613F
HARPHARPOON THERAPEUTICS INC0.21%1,500,000$17,055,0001,500,000New$11.3713F
TNYATENAYA THERAPEUTICS INC0.21%5,507,347$17,843,804-1,211,136-18.03%$3.2413F
BCYCBICYCLE THERAPEUTICS PLC-ADR0.17%800,000$14,464,000No Change$18.0813F
CRBPCorbus Pharmaceuticals Holdings, Inc.0.15%430,182$11,494,463430,182New13G
VXRTVaxart, Inc.0.15%15,384,615$12,153,84615,384,615New13G
CMPSCOMPASS PATHWAYS PLC0.14%1,286,000$11,252,500No Change$8.7513F
CVACCUREVAC NV0.14%2,744,270$11,553,377-7,860,074-74.12%$4.2113F
BDTXBLACK DIAMOND THERAPEUTICS I0.12%3,525,754$9,907,369No Change$2.8113F
CMRXCHIMERIX INC0.10%8,800,000$8,470,0002,298,37635.35%$0.9613F
IGMSIGM BIOSCIENCES INC0.09%937,500$7,790,625No Change$8.3113F
SRZNSurrozen, Inc./DE0.06%323,662$3,667,090323,662New13G
UNCYUNICYCIVE THERAPEUTICS INC0.04%3,470,688$3,011,516No Change$0.8713F
SABSSAB BIOTHERAPEUTICS INC0.02%2,374,081$1,632,1812,374,081New$0.6913F
NAMSWNEWAMSTERDAM PHARMA CO NV-270.01%333,333$1,043,332No Change$3.1313F
ACRSACLARIS THERAPEUTICS INC-4,398,453Exited13F
CELCCELCUITY INC-1,400,001Exited13F
COGTCOGENT BIOSCIENCES INC-6,416,147Exited13F
CNTBConnect Biopharma Holdings Ltd-3,062,871Exited13D
EYPTEYEPOINT PHARMACEUTICALS INC-3,370,506Exited13F
ICVXIcosavax, Inc.-5,963,565Exited13D
NSTGNANOSTRING TECHNOLOGIES INC-1,723,373Exited13F
NKTRNEKTAR THERAPEUTICS-18,700,000Exited13F
SLNOSOLENO THERAPEUTICS INC-1,239,000Exited13F
TALSTALARIS THERAPEUTICS INC-2,403,238Exited13F
VRDNVIRIDIAN THERAPEUTICS INC-2,007,946Exited13F