Avidity Partners Management LP
- SEC CIK
- 0001791827
- Latest filing
- Aug 14, 2026
Holdings in Q4 2023
Holdings as of Dec 31, 2023, filed Feb 14, 2024. Long positions only; changes compare share counts with Q3 2023.
- Positions
- 72
- −11 vs. Q3 2023
- Portfolio value
- $2.61B
- +$131.5M (+5.3%) vs. Q3 2023
| Security | Class | Shares | Value | % of portfolio | Share change | Action | History |
|---|---|---|---|---|---|---|---|
| ARVNArvinas, Inc. | COM | 2,985,117 | $122.9M | 4.7% | +370,157+14.2% | Added | History |
| BSXBoston Scientific Corp | Stock | 1,890,000 | $109.3M | 4.2% | −175,800−8.5% | Reduced | History |
| TMOThermo Fisher Scientific Inc. | Stock | 182,600 | $96.9M | 3.7% | +182,600 | New | History |
| ACHCAcadia Healthcare Company, Inc. | COM | 1,156,692 | $89.9M | 3.4% | +441,692+61.8% | Added | History |
| NBIXNeurocrine Biosciences Inc | Stock | 658,000 | $86.7M | 3.3% | +5,900+0.9% | Added | History |
| SNDXSyndax Pharmaceuticals Inc | COM | 3,950,000 | $85.4M | 3.3% | +1,129,000+40.0% | Added | History |
| NTRANatera, Inc. | COM | 1,110,000 | $69.5M | 2.7% | +211,000+23.5% | Added | History |
| DHRDanaher Corp | Stock | 290,000 | $67.1M | 2.6% | +113,400+64.2% | Added | History |
| THCTenet Healthcare Corp | COM NEW | 871,000 | $65.8M | 2.5% | −92,800−9.6% | Reduced | History |
| KRTXKaruna Therapeutics, Inc. | COM | 206,000 | $65.2M | 2.5% | −80,700−28.1% | Reduced | History |
| FUSNFusion Pharmaceuticals Inc. | COM | 6,500,328 | $62.5M | 2.4% | +718,478+12.4% | Added | History |
| JAZZJazz Pharmaceuticals plc | SHS USD | 489,119 | $60.2M | 2.3% | −308,381−38.7% | Reduced | History |
| REGNRegeneron Pharmaceuticals, Inc. | COM | 68,000 | $59.7M | 2.3% | +10,000+17.2% | Added | History |
| CVSCVS Health Corp | Stock | 740,000 | $58.4M | 2.2% | +740,000 | New | History |
| BPMCBlueprint Medicines Corp | COM | 615,000 | $56.7M | 2.2% | −136,600−18.2% | Reduced | History |
| IMGNImmunoGen, Inc. | COM | 1,829,215 | $54.2M | 2.1% | −88,692−4.6% | Reduced | History |
| IDYAIDEAYA Biosciences, Inc. | COM | 1,520,000 | $54.1M | 2.1% | −624,971−29.1% | Reduced | History |
| UTHRUnited Therapeutics Corp | COM | 237,202 | $52.2M | 2.0% | +237,202 | New | History |
| RCKTRocket Pharmaceuticals, Inc. | COM | 1,719,103 | $51.5M | 2.0% | +131,674+8.3% | Added | History |
| ITCIIntra-Cellular Therapies, Inc. | COM | 710,000 | $50.9M | 1.9% | −91,100−11.4% | Reduced | History |
| LLYEli Lilly & Co | Stock | 85,000 | $49.5M | 1.9% | +10,000+13.3% | Added | History |
| BHVNBiohaven Ltd. | COM | 1,148,308 | $49.1M | 1.9% | −137,092−10.7% | Reduced | History |
| AVTRAvantor, Inc. | COM | 2,121,844 | $48.4M | 1.9% | +2,121,844 | New | History |
| ZTSZoetis Inc. | Stock | 240,000 | $47.4M | 1.8% | −22,100−8.4% | Reduced | History |
| HUMHumana Inc | Stock | 100,000 | $45.8M | 1.8% | −10,300−9.3% | Reduced | History |
| ABBVAbbVie Inc. | Stock | 284,405 | $44.1M | 1.7% | +284,405 | New | History |
| GPCRStructure Therapeutics Inc. | SPONSORED ADS | 1,080,000 | $44.0M | 1.7% | +580,000+116.0% | Added | History |
| ALGNAlign Technology Inc | COM | 155,800 | $42.7M | 1.6% | +155,800 | New | History |
| LEGNLegend Biotech Corp | SPONSORED ADS | 685,000 | $41.2M | 1.6% | −282,000−29.2% | Reduced | History |
| BDXBecton Dickinson & Co | Stock | 165,706 | $40.4M | 1.5% | −121,094−42.2% | Reduced | History |
| RAREUltragenyx Pharmaceutical Inc. | COM | 844,500 | $40.4M | 1.5% | +300,500+55.2% | Added | History |
| MCKMcKesson Corp | Stock | 85,500 | $39.6M | 1.5% | −80,800−48.6% | Reduced | History |
| XENEXenon Pharmaceuticals Inc. | COM | 815,993 | $37.6M | 1.4% | +494,593+153.9% | Added | History |
| SGRYSurgery Partners, Inc. | Stock | 1,165,932 | $37.3M | 1.4% | −172,068−12.9% | Reduced | History |
| AXSMAxsome Therapeutics, Inc. | COM | 459,400 | $36.6M | 1.4% | +162,600+54.8% | Added | History |
| CRBUCaribou Biosciences, Inc. | COM | 6,360,212 | $36.4M | 1.4% | +310,000+5.1% | Added | History |
| PCVXVaxcyte, Inc. | COM | 570,137 | $35.8M | 1.4% | −186,028−24.6% | Reduced | History |
| NMRANeumora Therapeutics, Inc. | COM | 1,990,632 | $33.9M | 1.3% | +190,632+10.6% | Added | History |
| MIRMMirum Pharmaceuticals, Inc. | COM | 1,142,850 | $33.7M | 1.3% | 00.0% | Unchanged | History |
| UNHUnitedHealth Group Inc | Stock | 58,500 | $30.8M | 1.2% | −53,700−47.9% | Reduced | History |
| PRVAPrivia Health Group, Inc. | COM | 1,287,000 | $29.6M | 1.1% | −258,100−16.7% | Reduced | History |
| ISRGIntuitive Surgical Inc | COM NEW | 85,000 | $28.7M | 1.1% | +85,000 | New | History |
| LNTHLantheus Holdings, Inc. | Stock | 380,000 | $23.6M | 0.9% | −178,400−31.9% | Reduced | History |
| ANTXAN2 Therapeutics, Inc. | COM | 1,140,000 | $23.4M | 0.9% | +50,600+4.6% | Added | History |
| ACIUAC Immune SA | SHS | 4,469,080 | $22.3M | 0.9% | +1,499,280+50.5% | Added | History |
| ARWRArrowhead Pharmaceuticals, Inc. | COM | 714,000 | $21.8M | 0.8% | −349,897−32.9% | Reduced | History |
| IMCRImmunocore Holdings plc | ADS | 300,200 | $20.5M | 0.8% | −48,000−13.8% | Reduced | History |
| CRNXCrinetics Pharmaceuticals, Inc. | COM | 529,000 | $18.8M | 0.7% | −81,000−13.3% | Reduced | History |
| PHATPhathom Pharmaceuticals, Inc. | COM | 1,721,580 | $15.7M | 0.6% | +104,280+6.4% | Added | History |
| VRNAVerona Pharma plc | SPONSORED ADS | 780,900 | $15.5M | 0.6% | −49,400−5.9% | Reduced | History |
| IMNMImmunome Inc. | COM | 1,333,479 | $14.3M | 0.5% | +1,333,479 | New | History |
| AAgilent Technologies, Inc. | COM | 99,000 | $13.8M | 0.5% | +99,000 | New | History |
| NTLAIntellia Therapeutics, Inc. | COM | 447,434 | $13.6M | 0.5% | +68,334+18.0% | Added | History |
| SYRSSyros Pharmaceuticals, Inc. | COM NEW | 1,673,538 | $13.0M | 0.5% | +92,396+5.8% | Added | History |
| DNTHDianthus Therapeutics, Inc. | COM | 1,217,554 | $12.7M | 0.5% | 00.0% | Unchanged | History |
| ARGXArgenx SE | SPONSORED ADR | 31,000 | $11.8M | 0.5% | −49,600−61.5% | Reduced | History |
| CERECerevel Therapeutics Holdings, Inc. | COM | 276,888 | $11.7M | 0.4% | −366,112−56.9% | Reduced | History |
| COLLCollegium Pharmaceutical, Inc | COM | 361,363 | $11.1M | 0.4% | +11,163+3.2% | Added | History |
| IMVTImmunovant, Inc. | COM | 245,000 | $10.3M | 0.4% | −928,662−79.1% | Reduced | History |
| NGNENeurogene Inc. | COM | 466,243 | $9.04M | 0.3% | +466,243 | New | History |
| TVTXTravere Therapeutics, Inc. | COM | 827,010 | $7.43M | 0.3% | −495,990−37.5% | Reduced | History |
| KPTIKaryopharm Therapeutics Inc. | COM | 8,298,570 | $7.18M | 0.3% | 00.0% | Unchanged | History |
| AKROAkero Therapeutics, Inc. | COM | 235,000 | $5.49M | 0.2% | −504,100−68.2% | Reduced | History |
| KZRKezar Life Sciences, Inc. | COM | 5,025,454 | $4.76M | 0.2% | −985,646−16.4% | Reduced | History |
| IPSCCentury Therapeutics, Inc. | COM | 1,355,000 | $4.50M | 0.2% | +256,500+23.4% | Added | History |
| SCYXScynexis Inc | COM NEW | 1,448,728 | $3.23M | 0.1% | +129,284+9.8% | Added | History |
| CMPXCompass Therapeutics, Inc. | COM | 1,599,600 | $2.50M | 0.1% | 00.0% | Unchanged | History |
| RVMDRevolution Medicines, Inc. | COM | 60,000 | $1.72M | 0.1% | −597,200−90.9% | Reduced | History |
| HYPRHyperfine, Inc. | COM CL A | 1,188,178 | $1.33M | 0.1% | 00.0% | Unchanged | History |
| AMLXAmylyx Pharmaceuticals, Inc. | COM | 64,501 | $949.5K | <0.1% | −1,692,439−96.3% | Reduced | History |
| CMAXCareMax, Inc. | COM CL A | 636,000 | $316.9K | <0.1% | 00.0% | Unchanged | History |
| Nuvation Bio Inc.67080N119 | *W EXP 07/07/202 | 89,543 | $5.37K | <0.1% | 00.0% | Unchanged | – |
Options (2)
Puts and calls in the same filing. Amounts are the market value of the underlying shares, which is what 13F reports.
Sold out since Q3 2023 (21)
Positions held at the end of Q3 2023 that are gone from this filing.
| Security | Class | Shares in Q3 2023 | Value in Q3 2023 | % of portfolio in Q3 2023 | History |
|---|---|---|---|---|---|
| CICigna Group | Stock | 207,700 | $59.4M | 2.4% | History |
| SRPTSarepta Therapeutics, Inc. | COM | 450,000 | $54.5M | 2.2% | History |
| MLTXMoonLake Immunotherapeutics | CLASS A ORD | 777,172 | $44.3M | 1.8% | History |
| ZNTLZentalis Pharmaceuticals, Inc. | COM | 2,100,000 | $42.1M | 1.7% | History |
| DXCMDexcom Inc | COM | 377,700 | $35.2M | 1.4% | History |
| BIIBBiogen Inc. | COM | 115,400 | $29.7M | 1.2% | History |
| HCAHCA Healthcare, Inc. | COM | 114,800 | $28.2M | 1.1% | History |
| UHSUniversal Health Services Inc | CL B | 182,000 | $22.9M | 0.9% | History |
| Curevac N VN2451R105 | COM | 3,116,100 | $21.3M | 0.9% | – |
| PRTAProthena Corp Public Ltd Co | SHS | 382,305 | $18.4M | 0.7% | History |
| ROIVRoivant Sciences Ltd. | SHS | 1,503,302 | $17.6M | 0.7% | History |
| VTYXVentyx Biosciences, Inc. | COM | 354,900 | $12.3M | 0.5% | History |
| SDGRSchrodinger, Inc. | COM | 399,000 | $11.3M | 0.5% | History |
| RYZBRayzeBio, Inc. | COM | 500,000 | $11.1M | 0.4% | History |
| PACBPacific Biosciences of California, Inc. | COM | 1,034,294 | $8.64M | 0.3% | History |
| ALPNAlpine Immune Sciences, Inc. | COM | 657,280 | $7.53M | 0.3% | History |
| GRTSGritstone bio, Inc. | COM | 2,733,800 | $4.70M | 0.2% | History |
| ATECAlphatec Holdings, Inc. | COM NEW | 309,400 | $4.01M | 0.2% | History |
| NSTGNS Wind Down Co., Inc. | COM | 2,299,100 | $3.95M | 0.2% | History |
| VERVVerve Therapeutics, Inc. | COM | 285,334 | $3.78M | 0.2% | History |
| ALTAltimmune, Inc. | COM NEW | 1,159,900 | $3.02M | 0.1% | History |