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Livermore
Livermore
ZHEN

Avidity Partners Management LP

SEC CIK
0001791827
Latest filing
Aug 14, 2026

Holdings in Q3 2023

Holdings as of Sep 30, 2023, filed Nov 14, 2023. Long positions only; changes compare share counts with Q2 2023.

Institution overview
Positions
83
−10 vs. Q2 2023
Portfolio value
$2.48B
−$380.0M (−13.3%) vs. Q2 2023
Filed
Nov 14, 2023
SEC
Holdings of Avidity Partners Management LP in Q3 2023
SecurityClassSharesValue% of portfolioShare changeActionHistory
BSXBoston Scientific CorpStock2,065,800$109.1M4.4%+1,280,100+162.9%AddedHistory
JAZZJazz Pharmaceuticals plcSHS USD797,500$103.2M4.2%+94,722+13.5%AddedHistory
BDXBecton Dickinson & CoStock286,800$74.1M3.0%−111,250−27.9%ReducedHistory
NBIXNeurocrine Biosciences IncStock652,100$73.4M3.0%−13,216−2.0%ReducedHistory
MCKMcKesson CorpStock166,300$72.3M2.9%+65,100+64.3%AddedHistory
LEGNLegend Biotech CorpSPONSORED ADS967,000$65.0M2.6%+168,100+21.0%AddedHistory
THCTenet Healthcare CorpCOM NEW963,800$63.5M2.6%−26,700−2.7%ReducedHistory
CICigna GroupStock207,700$59.4M2.4%+207,700NewHistory
IDYAIDEAYA Biosciences, Inc.COM2,144,971$57.9M2.3%−840,729−28.2%ReducedHistory
UNHUnitedHealth Group IncStock112,200$56.6M2.3%+112,200NewHistory
SRPTSarepta Therapeutics, Inc.COM450,000$54.5M2.2%+152,500+51.3%AddedHistory
HUMHumana IncStock110,300$53.7M2.2%+110,300NewHistory
ARVNArvinas, Inc.COM2,614,960$51.4M2.1%−158,229−5.7%ReducedHistory
ACHCAcadia Healthcare Company, Inc.COM715,000$50.3M2.0%+165,000+30.0%AddedHistory
KRTXKaruna Therapeutics, Inc.COM286,700$48.5M2.0%−155,500−35.2%ReducedHistory
REGNRegeneron Pharmaceuticals, Inc.COM58,000$47.7M1.9%+33,200+133.9%AddedHistory
ZTSZoetis Inc.Stock262,100$45.6M1.8%+45,100+20.8%AddedHistory
IMVTImmunovant, Inc.COM1,173,662$45.1M1.8%−911,338−43.7%ReducedHistory
MLTXMoonLake ImmunotherapeuticsCLASS A ORD777,172$44.3M1.8%+377,172+94.3%AddedHistory
DHRDanaher CorpStock176,600$43.8M1.8%+176,600NewHistory
ZNTLZentalis Pharmaceuticals, Inc.COM2,100,000$42.1M1.7%−234,000−10.0%ReducedHistory
ITCIIntra-Cellular Therapies, Inc.COM801,100$41.7M1.7%+801,100NewHistory
SNDXSyndax Pharmaceuticals IncCOM2,821,000$41.0M1.6%−51,000−1.8%ReducedHistory
LLYEli Lilly & CoStock75,000$40.3M1.6%−58,000−43.6%ReducedHistory
NTRANatera, Inc.COM899,000$39.8M1.6%+466,100+107.7%AddedHistory
ARGXArgenx SESPONSORED ADR80,600$39.6M1.6%−103,700−56.3%ReducedHistory
SGRYSurgery Partners, Inc.Stock1,338,000$39.1M1.6%−217,000−14.0%ReducedHistory
LNTHLantheus Holdings, Inc.Stock558,400$38.8M1.6%+313,300+127.8%AddedHistory
PCVXVaxcyte, Inc.COM756,165$38.5M1.6%−118,835−13.6%ReducedHistory
BPMCBlueprint Medicines CorpCOM751,600$37.7M1.5%+336,600+81.1%AddedHistory
AKROAkero Therapeutics, Inc.COM739,100$37.4M1.5%−285,900−27.9%ReducedHistory
MIRMMirum Pharmaceuticals, Inc.COM1,142,850$36.1M1.5%+1,142,850NewHistory
PRVAPrivia Health Group, Inc.COM1,545,100$35.5M1.4%+465,294+43.1%AddedHistory
DXCMDexcom IncCOM377,700$35.2M1.4%+377,700NewHistory
BHVNBiohaven Ltd.COM1,285,400$33.4M1.3%−39,600−3.0%ReducedHistory
RCKTRocket Pharmaceuticals, Inc.COM1,587,429$32.5M1.3%+261,429+19.7%AddedHistory
AMLXAmylyx Pharmaceuticals, Inc.COM1,756,940$32.2M1.3%+855,540+94.9%AddedHistory
IMGNImmunoGen, Inc.COM1,917,907$30.4M1.2%−79,893−4.0%ReducedHistory
BIIBBiogen Inc.COM115,400$29.7M1.2%−58,600−33.7%ReducedHistory
CRBUCaribou Biosciences, Inc.COM6,050,212$28.9M1.2%+3,291,612+119.3%AddedHistory
ARWRArrowhead Pharmaceuticals, Inc.COM1,063,897$28.6M1.2%+138,897+15.0%AddedHistory
HCAHCA Healthcare, Inc.COM114,800$28.2M1.1%+114,800NewHistory
NMRANeumora Therapeutics, Inc.COM1,800,000$25.4M1.0%+1,800,000NewHistory
GPCRStructure Therapeutics Inc.SPONSORED ADS500,000$25.2M1.0%+462,200+1,222.8%AddedHistory
UHSUniversal Health Services IncCL B182,000$22.9M0.9%−188,100−50.8%ReducedHistory
Curevac N VN2451R105COM3,116,100$21.3M0.9%−1,183,900−27.5%Reduced–
AXSMAxsome Therapeutics, Inc.COM296,800$20.7M0.8%−248,200−45.5%ReducedHistory
RAREUltragenyx Pharmaceutical Inc.COM544,000$19.4M0.8%−356,700−39.6%ReducedHistory
PRTAProthena Corp Public Ltd CoSHS382,305$18.4M0.7%−152,695−28.5%ReducedHistory
RVMDRevolution Medicines, Inc.COM657,200$18.2M0.7%−417,800−38.9%ReducedHistory
CRNXCrinetics Pharmaceuticals, Inc.COM610,000$18.1M0.7%+610,000NewHistory
IMCRImmunocore Holdings plcADS348,200$18.1M0.7%−226,800−39.4%ReducedHistory
ROIVRoivant Sciences Ltd.SHS1,503,302$17.6M0.7%−184,198−10.9%ReducedHistory
ANTXAN2 Therapeutics, Inc.COM1,089,400$17.5M0.7%+432,200+65.8%AddedHistory
PHATPhathom Pharmaceuticals, Inc.COM1,617,300$16.8M0.7%−332,400−17.0%ReducedHistory
DNTHDianthus Therapeutics, Inc.COM1,217,554$16.6M0.7%+1,217,554NewHistory
FUSNFusion Pharmaceuticals Inc.COM5,781,850$15.0M0.6%+81,850+1.4%AddedHistory
CERECerevel Therapeutics Holdings, Inc.COM643,000$14.0M0.6%+141,800+28.3%AddedHistory
VRNAVerona Pharma plcSPONSORED ADS830,300$13.5M0.5%−124,200−13.0%ReducedHistory
VTYXVentyx Biosciences, Inc.COM354,900$12.3M0.5%−337,600−48.8%ReducedHistory
NTLAIntellia Therapeutics, Inc.COM379,100$12.0M0.5%−16,755−4.2%ReducedHistory
TVTXTravere Therapeutics, Inc.COM1,323,000$11.8M0.5%+1,323,000NewHistory
SDGRSchrodinger, Inc.COM399,000$11.3M0.5%+124,100+45.1%AddedHistory
KPTIKaryopharm Therapeutics Inc.COM8,298,570$11.1M0.4%−71,530−0.9%ReducedHistory
RYZBRayzeBio, Inc.COM500,000$11.1M0.4%+500,000NewHistory
XENEXenon Pharmaceuticals Inc.COM321,400$11.0M0.4%−159,900−33.2%ReducedHistory
PACBPacific Biosciences of California, Inc.COM1,034,294$8.64M0.3%−3,303,106−76.2%ReducedHistory
ACIUAC Immune SASHS2,969,800$8.46M0.3%+66,522+2.3%AddedHistory
COLLCollegium Pharmaceutical, IncCOM350,200$7.83M0.3%−3,900−1.1%ReducedHistory
ALPNAlpine Immune Sciences, Inc.COM657,280$7.53M0.3%−401,220−37.9%ReducedHistory
KZRKezar Life Sciences, Inc.COM6,011,100$7.15M0.3%−68,900−1.1%ReducedHistory
SYRSSyros Pharmaceuticals, Inc.COM NEW1,581,142$6.25M0.3%+117,108+8.0%AddedHistory
GRTSGritstone bio, Inc.COM2,733,800$4.70M0.2%−31,700−1.1%ReducedHistory
ATECAlphatec Holdings, Inc.COM NEW309,400$4.01M0.2%−83,600−21.3%ReducedHistory
NSTGNS Wind Down Co., Inc.COM2,299,100$3.95M0.2%−401,300−14.9%ReducedHistory
VERVVerve Therapeutics, Inc.COM285,334$3.78M0.2%−593,266−67.5%ReducedHistory
CMPXCompass Therapeutics, Inc.COM1,599,600$3.15M0.1%−20,600−1.3%ReducedHistory
ALTAltimmune, Inc.COM NEW1,159,900$3.02M0.1%−14,200−1.2%ReducedHistory
SCYXScynexis IncCOM NEW1,319,444$3.01M0.1%−419,290−24.1%ReducedHistory
HYPRHyperfine, Inc.COM CL A1,188,178$2.44M0.1%00.0%UnchangedHistory
IPSCCentury Therapeutics, Inc.COM1,098,500$2.20M0.1%−12,400−1.1%ReducedHistory
CMAXCareMax, Inc.COM CL A636,000$1.35M0.1%00.0%UnchangedHistory
Nuvation Bio Inc.67080N119*W EXP 07/07/20289,543$8.95K<0.1%−1,017−1.1%Reduced–

Sold out since Q2 2023 (23)

Positions held at the end of Q2 2023 that are gone from this filing.

Positions of Avidity Partners Management LP sold out since Q2 2023
SecurityClassShares in Q2 2023Value in Q2 2023% of portfolio in Q2 2023History
GEHCGE HealthCare Technologies Inc.Stock1,045,400$84.9M3.0%History
ABBVAbbVie Inc.Stock518,400$69.8M2.4%History
BIOBio-Rad Laboratories, Inc.CL A152,600$57.9M2.0%History
CORCencora, Inc.Stock300,000$57.7M2.0%History
APLSApellis Pharmaceuticals, Inc.COM468,700$42.7M1.5%History
PFEPfizer IncStock1,117,467$41.0M1.4%History
VIRVir Biotechnology, Inc.COM1,425,000$35.0M1.2%History
BAXBaxter International IncStock604,700$27.6M1.0%History
EDITEditas Medicine, Inc.COM3,000,000$24.7M0.9%History
AXNXAxonics, Inc.COM379,700$19.2M0.7%History
PLRXPliant Therapeutics, Inc.COM916,600$16.6M0.6%History
SLRNACELYRIN, Inc.COM750,000$15.7M0.5%History
PNTPOINT Biopharma Global Inc.COM1,671,800$15.1M0.5%History
TSVT2seventy bio, Inc.COMMON STOCK1,342,000$13.6M0.5%History
MLYSMineralys Therapeutics, Inc.COM766,700$13.1M0.5%History
MRSNMersana Therapeutics, Inc.COM3,790,000$12.5M0.4%History
NARIInari Medical, Inc.Stock175,000$10.2M0.4%History
ETNB89bio, Inc.COM526,376$9.97M0.3%History
DNLIDenali Therapeutics Inc.COM282,752$8.34M0.3%History
SLPSimulations Plus, Inc.COM45,900$1.99M0.1%History
BHCBausch Health Companies Inc.Stock215,100$1.72M0.1%History
Exscientia PLC30223G102ADS127,600$755.4K<0.1%–
AIPArteris, Inc.COM75,500$514.9K<0.1%History