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Siren, L.L.C.

Q2 2025 Holdings

Filed 2025-08-13 | 111 holdings | $1.9B | 13F-HR | View on SEC ↗ · Holdings Table ↗

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IssuerClassCUSIPValue ↓Shares% Portfolio
Scholar Rock Holding Corp(SRRK)COM80706P103$327.6M9,250,00517.0%
Kymera Therapeutics Inc(KYMR)COM501575104$149.6M3,428,1507.7%
BeOne Medicines AG(ONC)SPONSORED ADS07725L102$123.5M509,9906.4%
Disc Medicine Inc(IRON)COM254604101$58.2M1,099,4013.0%
Crinetics Pharmaceuticals Inc(CRNX)COM22663K107$48.6M1,688,6112.5%
Bicara Therapeutics Inc(BCAX)COM055477103$48.5M5,216,9692.5%
Dyne Therapeutics Inc(DYN)COM26818M108$46.0M4,836,4372.4%
Centessa Pharmaceuticals PLC(CNTA)SPONSORED ADS152309100$45.5M3,460,0292.4%
Merus NVCOMN5749R100$44.9M853,4672.3%
Apellis Pharmaceuticals Inc(APLS)COM03753U106$44.6M2,578,3962.3%
Ascendis Pharma A/S(ASND)SPONSORED ADR04351P101$42.4M245,9432.2%
Arrowhead Pharmaceuticals Inc(ARWR)COM04280A100$42.2M2,669,8802.2%
Edgewise Therapeutics Inc(EWTX)COM28036F105$41.4M3,160,2982.1%
Soleno Therapeutics Inc(SLNO)COM834203309$39.2M467,3422.0%
Lexicon Pharmaceuticals Inc(LXRX)COM NEW528872302$36.8M38,918,9031.9%
Taboola.com Ltd(TBLA)ORD SHSM8744T106$36.5M9,969,4951.9%
Solid Biosciences Inc(SLDB)COM NEW83422E204$36.1M7,415,9051.9%
Revolution Medicines Inc(RVMD)COM76155X100$34.5M938,7551.8%
Avidity Biosciences Inc(RNA)COM05370A108$31.5M1,110,6101.6%
Rhythm Pharmaceuticals Inc(RYTM)COM76243J105$25.9M409,7421.3%
Apogee Therapeutics Inc(APGE)COM03770N101$25.8M594,9941.3%
Stoke Therapeutics Inc(STOK)COM86150R107$25.5M2,247,3471.3%
Taysha Gene Therapies Inc(TSHA)COM SHS877619106$25.4M11,014,7371.3%
Xenon Pharmaceuticals Inc(XENE)COM98420N105$25.4M812,7611.3%
Wave Life Sciences Ltd(WVE)SHSY95308105$24.0M3,696,3221.2%
MoonLake Immunotherapeutics(MLTX)CLASS A ORD61559X104$24.0M508,2671.2%
Septerna Inc(SEPN)COM81734D104$23.3M2,202,5141.2%
NewAmsterdam Pharma Company NV(NAMS)ORDINARY SHARESN62509109$21.6M1,194,2401.1%
Trevi Therapeutics Inc(TRVI)COM89532M101$21.5M3,938,7931.1%
Tango Therapeutics Inc(TNGX)COM87583X109$17.2M3,364,8140.9%
Akero Therapeutics Inc(AKRO)COM00973Y108$17.0M318,6470.9%
Silence Therapeutics PLC(SLN)ADS82686Q101$16.9M2,911,4380.9%
Arrivent Biopharma Inc(AVBP)COM04272N102$15.2M700,0000.8%
Bicycle Therapeutics PLC(BCYC)SPONSORED ADS088786108$14.0M2,012,7520.7%
Arcus Biosciences Inc(RCUS)COM03969F109$13.1M1,612,0770.7%
IHS Holding Limited(IHS)ORD SHSG4701H109$13.1M2,357,5200.7%
Amazon.com Inc(AMZN)COM023135106$12.4M56,5000.6%
Denali Therapeutics Inc(DNLI)COM24823R105$11.5M821,5130.6%
Erasca Inc(ERAS)COM29479A108$11.1M8,757,2490.6%
Oric Pharmaceuticals Inc(ORIC)COM68622P109$10.2M1,007,5750.5%
Remitly Global Inc(RELY)COM75960P104$9.7M515,4490.5%
Vaxcyte Inc(PCVX)COM92243G108$9.6M295,5430.5%
CrowdStrike Holdings Inc(CRWD)CL A22788C105$9.4M18,5000.5%
Cullinan Therapeutics Inc(CGEM)COM230031106$9.0M1,193,4100.5%
Alphabet Inc(GOOGL)CAP STK CL A02079K305$8.9M50,7030.5%
Upstream Bio Inc(UPB)COM91678A107$8.7M788,4500.4%
Seer Inc(SEER)COM CL A81578P106$8.6M4,000,0000.4%
Microsoft Corp(MSFT)COM594918104$8.0M16,1500.4%
Nvidia Corp(NVDA)COM67066G104$7.9M49,9850.4%
Ionq Inc(IONQ)COM46222L108$7.3M170,0000.4%
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