Fund Holdings — Siren, L.L.C.

Total Portfolio Value:
$3.35B
Total Bought:
$864.70M
Total Sold:
$423.75M
Net Transaction:
+$440.94M
Securities
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SharesValue
Q3 2025
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Q4 2025
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Change
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Q3 2025
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Q4 2025
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Weight (%)
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Change
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Scholar Rock Holding Corporation(SRRK)9,250,00510,825,013+1,575,008$344.47M$476.84M14.22%+$132.37M
Kymera Therapeutics, Inc.(KYMR)3,428,1503,286,830-141,320$194.03M$255.75M7.63%+$61.71M
BeOne Medicines AGADS(ONC)492,990500,000+7,010$167.96M$151.91M4.53%-$16.06M
Edgewise Therapeutics, Inc.(EWTX)3,897,0994,529,990+632,891$63.21M$112.41M3.35%+$49.20M
Revolution Medicines, Inc.(RVMD)1,043,7201,335,075+291,355$48.74M$106.34M3.17%+$57.60M
Centessa Pharmaceuticals PLCADS3,227,5174,027,517+800,000$78.27M$100.73M3.00%+$22.46M
Arrowhead Pharmaceuticals, Inc.(ARWR)2,669,8801,500,476-1,169,404$92.08M$99.62M2.97%+$7.53M
Bicara Therapeutics Inc5,216,9695,216,9690$82.38M$87.80M2.62%+$5.43M
Olema Pharmaceuticals, Inc.(OLMA)03,300,700+3,300,700$0$82.52M2.46%+$82.52M
Disc Medicine, Inc.(IRON)913,401988,401+75,000$60.36M$78.49M2.34%+$18.13M
Structure Therapeutics IncADS1,026,8111,078,698+51,887$28.75M$75.02M2.24%+$46.27M
Tango Therapeutics, Inc.(TNGX)5,883,1888,165,374+2,282,186$49.42M$72.35M2.16%+$22.93M
Arcus Biosciences, Inc.(RCUS)2,912,0773,007,077+95,000$39.60M$71.66M2.14%+$32.05M
Stoke Therapeutics, Inc.(STOK)2,247,3472,247,3470$52.81M$71.33M2.13%+$18.52M
Crinetics Pharmaceuticals Inc1,688,6111,507,636-180,975$70.33M$70.18M2.09%-$150.2K
Dyne Therapeutics, Inc.(DYN)4,729,1743,502,941-1,226,233$59.82M$68.52M2.04%+$8.69M
Apellis Pharmaceuticals Inc
COM
2,578,3962,578,3960$58.35M$64.77M1.93%+$6.42M
Cogent Biosciences, Inc.(COGT)1,724,2791,629,279-95,000$24.76M$57.87M1.73%+$33.11M
Septerna, Inc.(SEPN)2,202,5142,000,000-202,514$41.43M$55.76M1.66%+$14.33M
Taysha Gene Therapies, Inc.(TSHA)11,014,73710,129,913-884,824$36.02M$55.71M1.66%+$19.70M
Rhythm Pharmaceuticals, Inc.(RYTM)499,975499,9750$50.49M$53.52M1.60%+$3.02M
Ascendis Pharma A/SADR(ASND)235,862235,8620$46.89M$50.30M1.50%+$3.40M
RAPT Therapeutics Inc580,4661,375,000+794,534$14.97M$46.57M1.39%+$31.60M
Taboola.com Ltd.(TBLA)9,969,4959,969,4950$34.00M$45.96M1.37%+$11.96M
Lexicon Pharmaceuticals, Inc.(LXRX)38,918,90338,918,9030$52.54M$44.76M1.34%-$7.78M
Zymeworks Inc.(ZYME)01,680,121+1,680,121$0$44.24M1.32%+$44.24M
Solid Biosciences Inc7,415,9057,690,405+274,500$45.76M$43.37M1.29%-$2.38M
Wave Life Sciences, Inc.SHS(WVE)3,696,3222,450,000-1,246,322$27.06M$41.65M1.24%+$14.59M
Xenon Pharmaceuticals Inc.(XENE)812,761812,7610$32.63M$36.43M1.09%+$3.80M
DBV Technologies S.A.ADS(DBVT)01,857,362+1,857,362$0$35.61M1.06%+$35.61M
Erasca, Inc.(ERAS)8,757,2498,757,2490$19.09M$32.58M0.97%+$13.49M
enGene Holdings Inc
COM
03,336,264+3,336,264$0$30.13M0.90%+$30.13M
Trevi Therapeutics, Inc.(TRVI)2,536,8672,286,867-250,000$23.21M$28.63M0.85%+$5.42M
Spyre Therapeutics, Inc.(SYRE)368,598818,598+450,000$6.18M$26.82M0.80%+$20.64M
Mineralys Therapeutics, Inc.(MLYS)0699,999+699,999$0$25.40M0.76%+$25.40M
Denali Therapeutics Inc.(DNLI)821,5131,396,513+575,000$11.93M$23.06M0.69%+$11.13M
Remitly Global, Inc.(RELY)1,618,2711,618,2710$26.38M$22.33M0.67%-$4.05M
Fulcrum Therapeutics, Inc.(FULC)01,950,000+1,950,000$0$22.05M0.66%+$22.05M
Rapport Therapeutics, Inc.(RAPP)1,053,469708,469-345,000$31.29M$21.49M0.64%-$9.79M
Silence Therapeutics plcADS(SLN)2,911,4382,911,4380$15.11M$17.70M0.53%+$2.59M
IHS Holding Limited
ORD SHS
2,357,5202,357,5200$16.08M$17.59M0.52%+$1.51M
Gossamer Bio, Inc.(GOSS)5,208,9685,208,9680$13.70M$16.15M0.48%+$2.45M
Upstream Bio, Inc.(UPB)788,450588,450-200,000$14.83M$15.98M0.48%+$1.15M
Bicycle Therapeutics PLCADS2,012,7522,012,7520$15.58M$14.25M0.43%-$1.33M
Monopar Therapeutics Inc.(MNPR)0212,298+212,298$0$13.86M0.41%+$13.86M
Cullinan Therapeutics, Inc.(CGEM)1,193,4101,193,4100$7.08M$12.35M0.37%+$5.27M
Sionna Therapeutics, Inc.(SION)325,000300,000-25,000$9.56M$12.34M0.37%+$2.78M
Inhibikase Therapeutics, Inc.(IKT)05,850,000+5,850,000$0$11.99M0.36%+$11.99M
NovaBridge BiosciencesADS(NBP)1,165,9573,000,000+1,834,043$4.41M$11.94M0.36%+$7.53M
Amazon.com, Inc.(AMZN)58,50051,500-7,000$12.84M$11.89M0.35%-$957.6K
Neumora Therapeutics, Inc.(NMRA)4,358,2836,288,783+1,930,500$7.93M$11.26M0.34%+$3.32M
Mind Medicine (MindMed) Inc0800,000+800,000$0$10.71M0.32%+$10.71M
Benitec Biopharma Inc.(BNTC)0775,000+775,000$0$10.44M0.31%+$10.44M
Invivyd, Inc.(IVVD)04,000,000+4,000,000$0$9.88M0.29%+$9.88M
Taiwan Semiconductor Manufacturing Company LimitedADS(TSM)28,20027,700-500$7.88M$8.42M0.25%+$541.8K
ORIC Pharmaceuticals, Inc.(ORIC)1,007,5751,007,5750$12.09M$8.24M0.25%-$3.85M
MapLight Therapeutics, Inc.(MPLT)0450,000+450,000$0$7.90M0.24%+$7.90M
Palvella Therapeutics, Inc.(PVLA)075,000+75,000$0$7.85M0.23%+$7.85M
CrowdStrike Holdings, Inc.CL A(CRWD)18,50016,500-2,000$9.07M$7.73M0.23%-$1.34M
IonQ, Inc.(IONQ)170,000170,0000$10.46M$7.63M0.23%-$2.83M
Seer, Inc.CL A(SEER)4,000,0004,000,0000$8.68M$7.32M0.22%-$1.36M
Microsoft Corporation(MSFT)17,15015,000-2,150$8.88M$7.25M0.22%-$1.63M
PDD Holdings Inc.ADS(PDD)43,40163,401+20,000$5.74M$7.19M0.21%+$1.45M
Lexeo Therapeutics, Inc.(LXEO)603,435720,622+117,187$4.01M$7.16M0.21%+$3.15M
NVIDIA Corporation(NVDA)37,48537,4850$6.99M$6.99M0.21%-$2.8K
Salesforce, Inc.(CRM)30,10026,100-4,000$7.13M$6.91M0.21%-$219.5K
COMPASS Pathways plcADS(CMPS)01,000,000+1,000,000$0$6.90M0.21%+$6.90M
BillionToOne IncCL A083,833+83,833$0$6.86M0.20%+$6.86M
Workiva Inc.CL A(WK)30,00079,123+49,123$2.58M$6.82M0.20%+$4.24M
Zura Bio LimitedCL A(ZURA)01,300,000+1,300,000$0$6.81M0.20%+$6.81M
vTv Therapeutics Inc.CL A(VTVT)163,000163,0000$3.81M$6.52M0.19%+$2.71M
Alphabet Inc.CL A(GOOG)21,20320,703-500$5.15M$6.48M0.19%+$1.33M
Nebius Group N.V.CL A(NBIS)72,60076,218+3,618$8.15M$6.38M0.19%-$1.77M
Savara Inc.(SVRA)01,000,000+1,000,000$0$6.03M0.18%+$6.03M
X4 Pharmaceuticals, Inc.(XFOR)01,500,000+1,500,000$0$6.00M0.18%+$6.00M
JFrog Ltd.(FROG)107,11693,616-13,500$5.07M$5.85M0.17%+$777.5K
ServiceNow, Inc.(NOW)7,12635,630+28,504$6.56M$5.46M0.16%-$1.10M
Tenax Therapeutics, Inc.(TENX)352,441427,141+74,700$2.68M$5.21M0.16%+$2.52M
Whitehawk Therapeutics, Inc.(WHWK)2,082,0002,082,0000$3.96M$5.04M0.15%+$1.08M
Dynatrace, Inc.(DT)100,229115,229+15,000$4.86M$4.99M0.15%+$137.9K
Datadog, Inc.CL A(DDOG)32,92536,425+3,500$4.69M$4.95M0.15%+$264.9K
Alumis Inc0500,000+500,000$0$4.88M0.15%+$4.88M
Meta Platforms, Inc.CL A(META)07,169+7,169$0$4.73M0.14%+$4.73M
PepGen Inc.(PEPG)700,000700,0000$3.23M$4.56M0.14%+$1.32M
Sagimet Biosciences Inc.COM SER A(SGMT)724,771724,7710$4.97M$4.29M0.13%-$681.3K
Adobe Inc.(ADBE)15,05112,051-3,000$5.31M$4.22M0.13%-$1.09M
Foghorn Therapeutics Inc.(FHTX)720,720720,7200$3.52M$3.89M0.12%+$367.6K
GitLab Inc.CL A(GTLB)64,00099,000+35,000$2.89M$3.72M0.11%+$830.4K
Kalaris Therapeutics, Inc.(KLRS)318,264435,798+117,534$1.84M$3.68M0.11%+$1.84M
New Oriental Education & Technology Group Inc.ADR(EDU)62,00062,0000$3.29M$3.41M0.10%+$121.5K
Agenus Inc.(AGEN)1,064,2501,064,2500$4.10M$3.34M0.10%-$755.6K
Medline Inc.CL A(MDLN)075,000+75,000$0$3.15M0.09%+$3.15M
Korro Bio, Inc.(KRRO)418,833347,718-71,115$20.06M$2.79M0.08%-$17.27M
Cellebrite DI Ltd.(CLBT)90,000150,000+60,000$1.67M$2.71M0.08%+$1.04M
Rani Therapeutics Holdings, Inc.CL A(RANI)02,000,000+2,000,000$0$2.70M0.08%+$2.70M
Zscaler, Inc.(ZS)012,000+12,000$0$2.70M0.08%+$2.70M
Black Diamond Therapeutics Inc1,046,5171,046,5170$3.97M$2.54M0.08%-$1.42M
monday.com LtdSHS
SHS
7,00017,000+10,000$1.36M$2.51M0.07%+$1.15M
Broadcom Inc.(AVGO)07,000+7,000$0$2.42M0.07%+$2.42M
QUALCOMM Incorporated(QCOM)14,00014,0000$2.33M$2.39M0.07%+$65.7K
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Siren, L.L.C. — 13F Holdings — Q4 2025 | TickerTrail